#archived-dots | Official Unity Discord | Page 162

tardy spoke Jul 29, 2020, 9:59 PM

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@minor sluice @amber flicker @tight blade @coarse turtle

First test of my garbage now that it's working, haha. It works surprisingly well... I'm not sure why that is. For example, in the video I didn't move the world 20km upwards as well, but I tried a test like that and it worked the same - it was exactly the same. Shouldn't the physics world be "bouncing" the character around a bit, affecting the camera? There must be some rendering going on relative to the camera or something compensating? I'm just surprised it's working this well and wondering what I did wrong/what's going on, haha.

https://youtu.be/l_ameCgMiH0

YouTube

Alex Wilkinson

DOTS CFO test

Test DOTS CFO

▶ Play video

spring hare Jul 29, 2020, 9:59 PM

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Also does that scheduling time change reliably based on the job’s dependencies and number of scheduled jobs waiting on the local thread?

tawdry tree Jul 29, 2020, 10:51 PM

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Pretty sure the overhead for scheduling is pretty much static. Some diff based on circumstances, of course, but i reckon we're talking within one order of magnitude, and probably more like slowest ~= 2x fastest for normal cases.
(Caveat: Some idiot always find a way to break the system, one way or another 😜 )

spring hare Jul 29, 2020, 11:01 PM

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Do you have a good sense of the per-schedule cost?

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In a build on Xbox or PS4 or just a mid-range PC

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Seeing ~0.10ms for scheduling 18 jobs with various dependencies when testing in editor, build pipeline got a bit messed up today so I haven’t been able to check a build

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That 0.1ms seems pretty steep though

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That’s with jobs debugging off

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Was wondering if that would collapse at all in a build, and how much

safe lintel Jul 29, 2020, 11:40 PM

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its definitely less in a build but at the same time still exists(if you disable jobs you get higher fps). i get like 300fps in a build, but if i reduce job threads to 1(not sure how to disable) the fps in a build goes up to 600. didnt test ms, also for some reason my editor is stuck with vsync on and disabling vsync has no effect so not sure what the actual numbers there are

humble mason Jul 30, 2020, 12:45 AM

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So, I have two different entity types and I'm trying to access both inside one ForEach. To do that I'm using GetEntityQuery.ToEntityArray(Allocator.TempJob) and then var myComponent = GetComponent... to grab a specific the first group of entities and I have access to the other entities from the ForEach lambda. My issue is that anything i write to the variables inside myComponent never shows up in the original entity that holds that component.

my TL;DR question is: how do I write to the variables of a component if i gain access to that component trough a GetEntityQuery and GetComponent? Thanks ❤️

tardy spoke Jul 30, 2020, 1:10 AM

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Can you not grab the components in the forEach loop itself?

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Oh, two different entities, gotcha

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I think this is similar to what you're after, except you're using an NativeArray of entities instead of the getSingleton?

📎 Screen_Shot_2020-07-29_at_7.11.37_PM.png

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Or are you trying to write to the OTHER component, in which case you might have to "flip it around" or something

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Also are you getting any errors or anything when it's trying to make those changes? Because to me it sounds odd to be reading from data you are writing to in an ECS system? Do you need to be using an Entity Component Buffer or something?

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I would imagine you would use the Entity Command Buffer which would then write the changes on the next "sync point".

You're probably writing the changes back to that nativeArray instead of the entities' Component values themselves so the changes never get "applied". That may be why you're not getting any errors as well?

humble mason Jul 30, 2020, 1:42 AM

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@tardy spoke yes I think I'm writing back to the nativearray. I was under the impression that it was pointing to the original data location

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I'm in the process of looking up the entity component buffer now 🙂

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Yes, so you're absolutely right, for some stupid reason I thought that the nativeArray was a way to access the component data directly, like a thread-safe pointer or something (wouldnt that be cool)... Turns out it's just a copy that gets discarded, essentially an unrelated malloc

mint iron Jul 30, 2020, 2:22 AM

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@spring hare these numbers are a year old or something but 0.0040 was expected for simple IJob in editor on a windows PC about 7 years old, 0.0005 minimum possible when running two identical jobs back to back. 0.01 is more likely, anything to do with chunks or complicated structs would probably be in the 0.01-0.02 range. So your number is about 0.0055 which sounds about right.

spring hare Jul 30, 2020, 2:25 AM

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Thank you, really appreciate the sanity check there.

tardy spoke Jul 30, 2020, 2:29 AM

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Yes, so you're absolutely right, for some stupid reason I thought that the nativeArray was a way to access the component data directly, like a thread-safe pointer or something (wouldnt that be cool)... Turns out it's just a copy that gets discarded, essentially an unrelated malloc
@humble mason lol no worries man, I do that kinda thing all the time. Happy to help. 😎

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Basically an ECB is just a way to "delay" actions until the next "sync point" where all threads finish so changes to stuff in memory can be made (I think that's how it works?) . The ECB just stores all the changes you want to make, then plays them back at the next "sync point". It seems a lot more confusing than it is. Basically the changes that need ECB's are anything that changes the structure of an entity, adding/removing a component. Modifying a component's value can be done multi-threaded somehow by magic in Unity's threading system

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@deft stump i'm trying to build for Android on 2020.1 and also experiencing some weird errors. On mine it's freaking out about DOTS stuff, specifically ECS related errors.

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https://docs.unity3d.com/2020.1/Documentation/Manual/android-sdksetup.html the bottom of this page doesn't even indicate there's an Android NDK for 2020.1 available

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📎 Screen_Shot_2020-07-29_at_8.48.13_PM.png

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📎 Screen_Shot_2020-07-29_at_8.47.56_PM.png

deft stump Jul 30, 2020, 3:16 AM

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SetName is editor only @tardy spoke

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and I'm not using the classic build pipeline, btw. I'm using the new one: SRB

tardy spoke Jul 30, 2020, 3:27 AM

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The scriptable one?

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Maybe I'll switch to that one once you get it working, hahah

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Looks great let's ship it

📎 Screen_Shot_2020-07-29_at_9.30.34_PM.png

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Hands up who would buy my game?

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I call it Redline.

deft stump Jul 30, 2020, 3:43 AM

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The classic build pipeline does work for dots

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if you dont have any subscenes

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it will work just fine

tardy spoke Jul 30, 2020, 3:51 AM

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Ah, gotcha. Yeah, no subscenes yet... just trying to get my world to render now.

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Hmm. It's rendering but ECS appears to not be running.

pallid carbon Jul 30, 2020, 4:14 AM

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I'm currently working with boids and I'm able to put maybe a thousand onscreen at once. I'd like the boids to react when shot with a bullet (a bullet object, not a raycast). However, I can't put a collider on the boids since 1000 colliders slows the game to a halt. Any ideas?

minor sapphire Jul 30, 2020, 6:46 AM

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Redline is the game I've been waiting my whole life for.

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@pallid carbon I had 10k ships shooting each other at 60fps on my 6-7 year old i5.

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1000 colliders is completely doable 😄

pallid carbon Jul 30, 2020, 6:49 AM

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I'm using a compute buffer right now, i couldnt get the ECS Samples package working due to broken dependencies. any tips?

minor sapphire Jul 30, 2020, 6:50 AM

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well I was using unity physics, that's about it 😄

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this was before havok was released, have not tried havok

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are you saying that with unity physics it's killing fps?

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as in the dots physics

pallid carbon Jul 30, 2020, 6:51 AM

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I could put 1000 ships onscreen, then add a collider to each and BAM, 1 fps

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no, i'm not entirely familiar with DOTS physics. I must have mistaken compute shaders being a part of DOTS

minor sapphire Jul 30, 2020, 6:52 AM

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oh you're using the traditional colliders?

pallid carbon Jul 30, 2020, 6:52 AM

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ye

minor sapphire Jul 30, 2020, 6:52 AM

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on traditional game objects?

pallid carbon Jul 30, 2020, 6:52 AM

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ye 😢

minor sapphire Jul 30, 2020, 6:52 AM

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just figured cuase you're in the dots channel you meant the new dots physics

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ok, my tip is to use dots and enjoy the performance 😄

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would be perfect for boids

pallid carbon Jul 30, 2020, 6:53 AM

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alright. tips to get started? the pinned stuff?

minor sapphire Jul 30, 2020, 6:53 AM

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yeah

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it's a bit of a learning curve

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and also it's not in production so not a good choice if you need something in production soon

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and also still lots of limits

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so read about what it can and can't do and then choose 😄

pallid carbon Jul 30, 2020, 6:54 AM

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Alright, thanks for the advice

minor sapphire Jul 30, 2020, 6:58 AM

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https://drive.google.com/file/d/17-EYRDje0HNldTpizW4D_Jp9qfDIYteK/view?usp=sharing

Google Docs

SpaceBattle.zip

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PC Build for my little DOTS ships experiment

pallid carbon Jul 30, 2020, 7:11 AM

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@minor sapphire

📎 Bow-Down-Worship.png

dull copper Jul 30, 2020, 8:08 AM

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DOTS isnt automatically even better for perf atm

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In my testing rendering was slower and less functional. Physics choked even with few rigidbodies at higher update rates (where builtin physx just flies)

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How I see it, you either have to do some ecs favorable brute force computing or just like the cleaner ecs code structure to pick dots today

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And yes, I tested with hybrid v2

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Then add on top that I even have to manually limit job system to only use few threads or it will totally tank the perf on stock dots packages....

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It is just really far from perf by default atm

half jay Jul 30, 2020, 8:15 AM

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Im trying convert loaded list of addressables which store gameobject prefabs. I have this conversion component which het this List of addressables and should create same entities count as count of list but always getting one entity. Cycle calling properly but always PrimaryEntity same not different

📎 unknown.png

gusty comet Jul 30, 2020, 8:48 AM

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What is the buffer component equivalent of entityManager.AddComponentData?

minor sluice Jul 30, 2020, 8:52 AM

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entityCommandBuffer.AddComponent

amber flicker Jul 30, 2020, 8:53 AM

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var buffer = GetBuffer<MyBuffer>(entity);
buffer.Add(..);``` is what you're after maybe

deft stump Jul 30, 2020, 9:32 AM

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Then add on top that I even have to manually limit job system to only use few threads or it will totally tank the perf on stock dots packages....
instead of scheduling jobs, all I'm doing is just running them on the main thread.
even with my hundred of bullets bullethell game, run > sched...

amber flicker Jul 30, 2020, 9:39 AM

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Just to make the point explicitly, whilst the cost of Schedule is fairly constant, the cost of ScheduleParallel varies roughly linearly with number of workers and so can quickly add up on a high core count. Speeding up schedule overhead is currently high on Unity's list I believe.

gusty comet Jul 30, 2020, 10:10 AM

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okay here's a big performance Q I need help with

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        public Chemical Chemical;
        public ChemicalState ChemicalState;
        public float Matter;
        public float Temp;

With this struct, I can always know what ChemicalState is based on Chemical and Temp because Chemical has BoilingPoint and MeltingPoint data and we have the Temp right there.

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The problem is, I probably need that ChemicalState enum directly in that struct. If I have to run Chemical.GetState(temp) over and over again every time, it'd be a serious performance issue

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so is there any way to do new ChemicalComposition { Chemical = x, Matter = y, Temp = z } and have ChemicalState implicitly set?

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I could just use a constructor but it seems like they really don't want you to use constructors on these structs

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and there is really never an instance where ChemicalState would not be what is logical for the Chemical and Temp properties to decide.

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I could use a public ChemicalState ChemicalState { get { whatever; } } but that doesn't feel any different than calling a function. Pretty sure that's what it is.

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just going to use a constructor for now

odd ridge Jul 30, 2020, 10:32 AM

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@mint iron @zinc plinth when I use native arrays to iterate over data so that I can simd the computations, do my arrays have to be a size multiple of the width of my simd? for example, I want to add ints together. if I use 128 bits wide simd, do I have to make my native array a multiple of 4 so that I can compute in batches of 4? what if I have 3 pieces of data? will the simd compute the extra 1 as garbage? will the nativearray adjust the memory layout to always be a multiple of the simd width?

manic reef Jul 30, 2020, 10:40 AM

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        public Chemical Chemical;
        public ChemicalState ChemicalState;
        public float Matter;
        public float Temp;
With this struct, I can always know what ChemicalState is based on Chemical and Temp because Chemical has BoilingPoint and MeltingPoint data and we have the Temp right there.
@gusty comet Maybe it will be easier to introduce a static function CreateChemicalComposition(x, y, z)?

gusty comet Jul 30, 2020, 10:49 AM

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I actually think the best idea would be a constructor because I just realized I probably want a lot of other derivative values in that struct.

mint iron Jul 30, 2020, 12:47 PM

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@odd ridge I know it will work if you use float4/int4/bool4 arrays. In that case Burst definitely knows what you want and how to handle it. There has been talk of an ability to have things compile SIMD from single value arrays like NativeArray<float> which makes sense because you can process it 4 values at a time, and if length is not a multiple of 4 then it will just have some garbage processed as well in the last iteration. I have done this manually by setting the length to the next multiple of 4 and reinterpreting the array type but i am not sure if unity does that automatically. Would love to see some tests on it.

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the case i'm thinking of i just had a float* and just changed it to float4*

odd ridge Jul 30, 2020, 12:54 PM

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@mint iron does your code work with regular float arrays, but only reinterpret to float4 for the simd part? I'm confused how I can create single entities if I have float4s

mint iron Jul 30, 2020, 12:56 PM

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i'm not sure how it turns out in a ForEach for example, i would expect/hope that if you have a simple enough loop it can at least do a small amount of SIMD per each chunk, but the chunks aren't accessed sequentially so its going to be slower than if you just had it all pre-grouped into a big array.

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components are stored together so it shouldnt matter if you have a component with a grouped value as float4 or 4x the components with individual floats. if you accessed it with an IJobChunk for example, you just get the array of components and reinterpret it as float4. but sadly a lot of my SIMD work so far has been using burst outside of ECS, so im not sure how much help i can be there

odd ridge Jul 30, 2020, 12:59 PM

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okay thanks

mint iron Jul 30, 2020, 1:03 PM

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it would be cool to come up with an example project showing how common things get auto vectorized in ECS.

small arch Jul 30, 2020, 1:10 PM

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how do i give my job an array? it says that my array is not a value type and job structs may not contain any reference types

minor sluice Jul 30, 2020, 1:10 PM

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NativeArray instead of regular array

small arch Jul 30, 2020, 1:10 PM

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but can i do a multidimensional native array?

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NativeList<int[,]> doesnt work: the type must be a non-nullable value type

minor sluice Jul 30, 2020, 1:14 PM

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oh

small arch Jul 30, 2020, 1:14 PM

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i think i found it

minor sluice Jul 30, 2020, 1:14 PM

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you could either flatten it out

small arch Jul 30, 2020, 1:14 PM

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nativehashmap

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or something

minor sluice Jul 30, 2020, 1:14 PM

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or that yeah

small arch Jul 30, 2020, 1:14 PM

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i'll try that, thanks

deft stump Jul 30, 2020, 1:18 PM

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you can't do multi-d native array

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and nativehashmap isn't a multi-d array

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it's a key,value pair similar to the dictionary.

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if you want to pass a multi-d array, flatten it first

small arch Jul 30, 2020, 1:20 PM

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why wouldnt hashmap work

minor sluice Jul 30, 2020, 1:20 PM

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basics to flatten,
the array size is basically [rowSize * columnSize]

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to store a value:
array[row * rowSize + column] =

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same with retrieval

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hashmap is like a dictionary, it is a different use case

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you map a value to a specific key, but in an array, you map a value to an index

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and if you iterate over all indices of the array, you can get the row and column values like so

int row = i / rowSize;
int column = i % rowSize;

small arch Jul 30, 2020, 1:26 PM

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uh oh... does the hashmap start automatically formatting what i write?

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because thats whats happening right now

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after i've made that table

deft stump Jul 30, 2020, 1:27 PM

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what you mean auto formatting?

small arch Jul 30, 2020, 1:28 PM

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when i press specific letters like T in visual studio it lags for a second and i get this

📎 unknown.png

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and i get letter doubling now

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so when i type something it types it twice

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lol

deft stump Jul 30, 2020, 1:28 PM

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that's probably visual studio effing up

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and also, using hashmap to store your multi-d array is a big no-no.
your key's essentially needs to be unique.
so what will be your key? your row? your column?
either way you need to repeat a key to store the next cell, which will result in overwriting the previous value.

minor sluice Jul 30, 2020, 1:36 PM

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if your use case is a 2 dimensional array, I would really just use a flattened 1 dimensional native array and leave the hashmap for a different usecase

small arch Jul 30, 2020, 1:37 PM

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yea i had a premade table and didnt feel like formatting it

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📎 unknown.png

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i think i legit have to reinstall visual studio

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lol

deft stump Jul 30, 2020, 1:38 PM

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for something that large... flattenning it will help your cpu, dots or not.

tardy spoke Jul 30, 2020, 3:29 PM

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@pallid carbon I've been building a resource for people new to DOTS with recent/relevant content. Might be of use.

https://sites.google.com/site/unityecsresources/

zinc plinth Jul 30, 2020, 3:30 PM

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please use github with markdown if you want us to contribute

tardy spoke Jul 30, 2020, 3:31 PM

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Yeah, I'll switch it over if there's any interest / people actually using it.

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Also I could just give people access to the Google sheet that that site loads if they wanted to add resources in the meantime.

deft stump Jul 30, 2020, 3:32 PM

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it's honestly more accessible for programmers to have stuff in github, imo

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let's face it. github is facebook for devs

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(change my mind)

tardy spoke Jul 30, 2020, 3:33 PM

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... no one is going to add any resources to this

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lol

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If you PROMISE to add some resources I'll throw it on Github for you.

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Hahahah

deft stump Jul 30, 2020, 3:39 PM

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also alex, there is a much quicker way to install dots rather than going to the manifest file.
go to package manager -> press the "+" symbol -> add pacakage from git URL -> type: com.unity.rendering.hybrid -> press add then wait, because it takes a while to clone it to a temp folder in your pc.

tardy spoke Jul 30, 2020, 3:43 PM

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Yeah, that's probably a better approach is it'll get the newest version as well

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Moving the page over to github pages now...

small arch Jul 30, 2020, 3:50 PM

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how do i do NativeList = NativeList

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because i get an error that native array has been deallocated

deft stump Jul 30, 2020, 3:52 PM

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What are you trying to do?

small arch Jul 30, 2020, 3:52 PM

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📎 unknown.png

deft stump Jul 30, 2020, 3:52 PM

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Compare? Or get the nativelist back from a job to the mainthread?

small arch Jul 30, 2020, 3:52 PM

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📎 unknown.png

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📎 unknown.png

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i made a new NativeList outside of the job and one inside of the job... then filled the list outside of the job with data... and said terrainMap(nativelist inside of the job) = terrainMapNative (native list outside of the job)

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i need to get all the data into the job

manic reef Jul 30, 2020, 3:56 PM

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@small arch off topic but I recommend you to set initial capacity for the list. It will save you some performance and memory

small arch Jul 30, 2020, 3:56 PM

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ok

deft stump Jul 30, 2020, 3:58 PM

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have youyou newed your terrainMapNative?

small arch Jul 30, 2020, 3:59 PM

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terrainMapNative yes top line in the first image

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terrainMap... no

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📎 unknown.png

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error btw

tardy spoke Jul 30, 2020, 4:27 PM

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@deft stump alright, got it up on a github page now. It'll take me a bit to move all the stuff over.

https://powercowyyc.github.io/

zinc plinth Jul 30, 2020, 4:39 PM

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@small arch try to use Unity.Mathematics stuff over Vector

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so int3 here

small arch Jul 30, 2020, 4:52 PM

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i dont think vector is the problem in this case, i think it's terrainMap or terrainMapNative being deallocated for some reason, both of which have float values and not vector

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unless you were talking about improving performance, which i might try

tardy spoke Jul 30, 2020, 6:16 PM

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hmm, this is weird. ECS runs in editor, but doesn't seem to run on Oculus Quest.

Just have a rotating cube and it doesn't want to rotate. Odd.

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https://status.cloud.unity3d.com/?_ga=2.44928742.392091052.1595342360-2062027805.1593105104 lol wow Unity is having some issues

Unity Cloud System Status Page

Current system status. View active incidents or upcoming maintenances. Subscribe to receive status notifications.

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Login + collaborate issues

odd ridge Jul 30, 2020, 6:37 PM

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does the hybrid renderer work with URP?

safe lintel Jul 30, 2020, 6:39 PM

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Lateat package seems to clear up my stability issues with urp(the samplescene was crashing unity on play previously)

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That said its still limited as their focus appears to be on hdrp, but the docs show whata supported by the hybrid renderer as far as features

tardy spoke Jul 30, 2020, 6:41 PM

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I've been using it without too many issues.

tardy spoke Jul 30, 2020, 8:55 PM

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Is there some sort of ECS initialization procedure for mobile?

In this video in VR (Oculus Quest, which is Android) you can see the left cube is rotating which is a monoBehaviour. The right cube is ECS, and it rotates when you hit "play" in Unity but not when built to Android. Hmm.

📎 com.DefaultCompany.RealHeroes_DOTS-20200730-145254.mp4

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Build seems fine, no related errors or anything

📎 Screen_Shot_2020-07-30_at_2.56.45_PM.png

north bay Jul 30, 2020, 9:00 PM

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Does logcat say anything?

rancid geode Jul 30, 2020, 9:18 PM

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@tardy spoke is managed code striping on in the Project Settings?

tardy spoke Jul 30, 2020, 9:24 PM

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@sage gate disabled

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@north bay I'm not sure, haven't really set up debugging tooling for Quest yet but it would sure be helpful, haha. Looking into how to get it's logs now.

coarse turtle Jul 30, 2020, 9:26 PM

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using their build pipelines? 🤔

tardy spoke Jul 30, 2020, 9:26 PM

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The build pipeline is fairly standard

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Not using scriptable one or anything

rancid geode Jul 30, 2020, 9:26 PM

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oh, ECS only works with the Scriptable one (if you are using the standard Build Window it won't work)

tardy spoke Jul 30, 2020, 9:32 PM

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lol... well I'm glad that's the solution. never heard that before.

rancid geode Jul 30, 2020, 9:43 PM

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correction: seems like only the subscenes requires the new build workflow, still I would give it a shot before anything else

tardy spoke Jul 30, 2020, 10:06 PM

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Ah, interesting. I see there seems to be very little documentation on SBP.

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I hope it's simple... I feel it may not be... haha

hybrid wind Jul 30, 2020, 10:07 PM

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is DOTS stable enough to use in 2020.1?

craggy orbit Jul 30, 2020, 10:10 PM

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no. which is why Unity has hidden it from the package manager

hybrid wind Jul 30, 2020, 10:11 PM

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big yikes

tardy spoke Jul 30, 2020, 10:19 PM

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What's stable "enough"?

tardy spoke Jul 30, 2020, 10:39 PM

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Yeah SBP looks like a huge pain to set up just due to the lack of documentation

coarse turtle Jul 30, 2020, 10:43 PM

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I'd look at the entity component system samples - I pretty much followed the example there to see how to set it up

tardy spoke Jul 30, 2020, 10:43 PM

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They all use SBP?

coarse turtle Jul 30, 2020, 10:45 PM

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I cant remember exactly, if it applied to all samples

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https://github.com/Unity-Technologies/EntityComponentSystemSamples/tree/master/ECSSamples/Assets/BuildConfigurations

GitHub

Unity-Technologies/EntityComponentSystemSamples

Contribute to Unity-Technologies/EntityComponentSystemSamples development by creating an account on GitHub.

tardy spoke Jul 30, 2020, 10:45 PM

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Yeah, looking at them now - how much work is this SBP thing really? Am I defining literally every build option or do you define the build options regularly (in Unity, IE selecting things like mipmapping etc in the UI) and it's working at a higher level than that?

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My biggest concern is how to I have it send it to the Oculus Quest? I'll probably have to manually upload it every time, haha

coarse turtle Jul 30, 2020, 10:47 PM

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The settings are pretty high level - I think for most intensive purposes you just set up a common build dependency and then the platform you want to publish on effectively.

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IIRC, most settings can really be found in Project Settings -> Player per platform

tardy spoke Jul 30, 2020, 11:11 PM

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Even weirder. Test build on Mac, both cubes rotate indicating ECS is working, but all the world's game objects are all over the place, hahah

📎 Screen_Shot_2020-07-30_at_5.10.39_PM.png

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I think there was something wrong with the import of that synty asset when I copied it in, I think I applied a mesh renderer or something to an object that shouldn't of had one and it was breaking the hybrid renderer

tight blade Jul 30, 2020, 11:26 PM

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damnnnn. well... thats what I get for relying on sequence order in an entity query.

tardy spoke Jul 30, 2020, 11:29 PM

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https://docs.unity3d.com/Packages/com.unity.platforms.android@0.7/manual/index.html wtf is this shit

tight blade Jul 30, 2020, 11:29 PM

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^ haaaa

tardy spoke Jul 30, 2020, 11:29 PM

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"This package provides support for building DOTS based projects to Android." it sounds like something I'd be interested in

tight blade Jul 30, 2020, 11:30 PM

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"yeah I bet you would" says the docs

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hey no one happens to know if theres some way to modify a particular entity query such that they always return entities in offset order (like order in which they were created), would they? I realize thats just about certainly not a thing, but I thought I'd ask

tardy spoke Jul 30, 2020, 11:33 PM

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could write data to a component in them upon creation that has the order?

tight blade Jul 30, 2020, 11:33 PM

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yeah, there are a number of methods that would come down to "sort them"

tardy spoke Jul 30, 2020, 11:34 PM

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You want to sort something without sorting it?

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People in hell want ice water

tight blade Jul 30, 2020, 11:34 PM

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yeah, thats more or less exactly what I want

#

or rather I want it sorted without sorting it.

#

and some ice water.

tardy spoke Jul 30, 2020, 11:35 PM

#

What if you mark which one is the first one in memory

#

and then you know every one it selects next to it in memory was sequentially the next created?

#

... is that a thing?

tight blade Jul 30, 2020, 11:38 PM

#

I think basically what's happening is that chunks are out of order. I was basically trying to make a system that works on 2 different archetype queries (because they're different physics objects) and operates on pairs of data, but it seems the query has the freedom to reorder the chunks it serves from. So if I did have to sort it, presumably I'd only have to sort the chunks, which is nice, but it'll take a good bit of work to tear apart the entity manager to build my own

#

like, to be more explicit, I create these physics entities in pairs, so I had a system that queried both types of entities and paired them up. the problem is one of the queries reordered the chunks, the other didn't so the pairs stopped being consistent

tardy spoke Jul 30, 2020, 11:40 PM

#

... it didn't "do" anything. Is there something I have to "do" with it? :\

📎 Screen_Shot_2020-07-30_at_5.38.08_PM.png

#

Shit. Red herring?

📎 Screen_Shot_2020-07-30_at_5.41.17_PM.png

tight blade Jul 30, 2020, 11:42 PM

#

yiiiikes

#

thats such a bummer

tardy spoke Jul 30, 2020, 11:42 PM

#

Dreams crushed

tight blade Jul 30, 2020, 11:43 PM

#

another early adopter gut punch

hollow sorrel Jul 30, 2020, 11:43 PM

#

you can build to android

#

you just have to make a build config asset

tardy spoke Jul 30, 2020, 11:43 PM

#

... I'm liking what you're saying

#

Does it relate to using the Scriptable Build Pipeline or something?

hollow sorrel Jul 30, 2020, 11:44 PM

#

create > build > empty build config

#

coulda sworn they had some example configs too but dunno where they went

tardy spoke Jul 30, 2020, 11:44 PM

#

@hollow sorrel I can build with the regular build thing to Android/VR, but ECS doesn't work. Is that expected?

And the resolution is this fancy "build config asset"?

hollow sorrel Jul 30, 2020, 11:44 PM

#

yes

#

regular build doesn't support subscenes

tardy spoke Jul 30, 2020, 11:45 PM

#

It's not in a subscene

#

Shit... it's greyed out. Proof. No god. :\

📎 Screen_Shot_2020-07-30_at_5.45.03_PM.png

hollow sorrel Jul 30, 2020, 11:46 PM

#

yea might not support ecs outside subscenes either dunno

#

do you have the scriptable build pipeline and platforms packages?

tardy spoke Jul 30, 2020, 11:47 PM

#

Yes

#

oh platforms... maybe not

#

Any idea what it's called? DOTS platforms or something?

hollow sorrel Jul 30, 2020, 11:47 PM

#

there's a base one called platforms and then another one for each platform

#

just platforms

tardy spoke Jul 30, 2020, 11:47 PM

#

ah

#

https://docs.unity3d.com/Packages/com.unity.platforms@0.7/manual/index.html this one per chance?

hollow sorrel Jul 30, 2020, 11:48 PM

#

ye

tardy spoke Jul 30, 2020, 11:48 PM

#

And I ALSO need the specific one?

#

Can doooo

#

How did you even figure this out? Hahah

#

I've got both installed now though

hollow sorrel Jul 30, 2020, 11:50 PM

#

there was a forum post when they introduced it, can't seem to find it tho

tardy spoke Jul 30, 2020, 11:51 PM

#

Alright, seems like progress

📎 Screen_Shot_2020-07-30_at_5.51.25_PM.png

hollow sorrel Jul 30, 2020, 11:52 PM

#

oh i guess the example one only shows after you install the specific platform package

#

that explains that

tardy spoke Jul 30, 2020, 11:56 PM

#

Wtf ... do I do with this thing

📎 Screen_Shot_2020-07-30_at_5.55.41_PM.png

#

There's gotta be a manual or some shit somewhere, right?

hollow sorrel Jul 30, 2020, 11:57 PM

#

not that i know of, but most of these settings are just a mirror of what the old build settings are so you could look up the docs for that

#

only difference is you get to choose what settings you specifically need rather than have literally all of them at the same time

tardy spoke Jul 31, 2020, 12:01 AM

#

Will it just default the settings that are not selected? Do I have to throw any of this entities stuff in to have it compile to DOTS or is it... smart enough to figure that out? Haha

hollow sorrel Jul 31, 2020, 12:02 AM

#

yea should be default if not selected

#

and no i don't think there's dots specific settings at least not when i last checked

tardy spoke Jul 31, 2020, 12:06 AM

#

hmm

zinc plinth Jul 31, 2020, 12:06 AM

#

@tardy spoke can't you live debug your android build ?

tardy spoke Jul 31, 2020, 12:07 AM

#

@zinc plinth Haven't really looked into it too heavily yet, but I'm sure there's some tooling for it

#

lol it built SOMETHING... let's try it...

📎 Screen_Shot_2020-07-30_at_6.06.40_PM.png

zinc plinth Jul 31, 2020, 12:07 AM

#

I would have started by this personally

tardy spoke Jul 31, 2020, 12:25 AM

#

Yep. It built but made no difference. Will have to get the debug info from the Oculus Quest itself to see why it's so angry.

tight blade Jul 31, 2020, 12:37 AM

#

anybody know anything about sorting nativearrays? rather than sorting the array in place, id like to get an array of indices for the rank order of a native array according to some key.. Is there an API that exists for that or do I have to put my datastructures and algorithms hat on?

zinc plinth Jul 31, 2020, 12:52 AM

#

@tardy spoke I meant as in being able to get the log outputs of the build, so that you can print in your systems to see where you get errors and get the error logs

tight blade Jul 31, 2020, 1:44 AM

#

ehm, maybe on a more fundamental C# level does anyone know how I would sort an array of Unity.Mathematics.Int2? the nativearray sort extension requires an IComparable type.. presumably there's some way to cast the NativeArray<int2> into something that works with the .Sort() ? I'm not a great C# guy...

#

oh I can define and create a Comparer class... OOP...

half jay Jul 31, 2020, 8:54 AM

#

im getting this error

📎 unknown.png

#

on this part of code

📎 unknown.png

#

but im confused Buffer with element and im checking component for exists

amber flicker Jul 31, 2020, 9:00 AM

#

@half jay I think you're using EntityManager to make structural changes to your entities whilst iterating a buffer - this causes the buffer to become invalidated for safety. On line 78 if you add .ToNativeArray(Allocate.TempJob) (syntax from memory) then dispose of children after the for loop, that should do what you want I think

half jay Jul 31, 2020, 9:07 AM

#

@amber flicker ty it works

pliant pike Jul 31, 2020, 12:52 PM

#

random question is there any way of locking a dynamicbuffer, like after creating it to the correct size I don't want to be able to change its size or the order of the elements

pliant pike Jul 31, 2020, 2:38 PM

#

stupid question but does anyone know why this works

#

 DstEntityManager.AddBuffer<CurrentFoodPricesBuff>(GetPrimaryEntity(tempent));
            DynamicBuffer<CurrentFoodPricesBuff> tempdynam = DstEntityManager.GetBuffer<CurrentFoodPricesBuff>(GetPrimaryEntity(tempent));

            for (int i = 0; i < woggle.Count; i++)
            {
                tempdynam.Add(woggle[i].Price);  
            }

            DstEntityManager.AddBuffer<CurrentItemStock>(GetPrimaryEntity(tempent));
            DynamicBuffer<CurrentItemStock> tempothdynam = DstEntityManager.GetBuffer<CurrentItemStock>(GetPrimaryEntity(tempent));

            for (int j = 0; j < woggle.Count; j++)
            {
                Currentstock currentstock = new Currentstock { BackroomStock = 0, ShopfloorStock = 0 };
                tempothdynam.Add(currentstock);
            }```

#

but this doesn't

#

 DstEntityManager.AddBuffer<CurrentFoodPricesBuff>(GetPrimaryEntity(tempent));
            DynamicBuffer<CurrentFoodPricesBuff> tempdynam = DstEntityManager.GetBuffer<CurrentFoodPricesBuff>(GetPrimaryEntity(tempent));

            DstEntityManager.AddBuffer<CurrentItemStock>(GetPrimaryEntity(tempent));
            DynamicBuffer<CurrentItemStock> tempothdynam = DstEntityManager.GetBuffer<CurrentItemStock>(GetPrimaryEntity(tempent));

            for (int i = 0; i < woggle.Count; i++)
            {
                tempdynam.Add(woggle[i].Price);
                Currentstock currentstock = new Currentstock { BackroomStock = 0, ShopfloorStock = 0 };
                tempothdynam.Add(currentstock);

            }```

#

the second bunch of code I get an error saying cannot access buffer due to structural changes

zinc plinth Jul 31, 2020, 2:41 PM

#

get your buffer from the Add, don't fetch it afterwards..

opaque ledge Jul 31, 2020, 2:41 PM

#

when you add an item to dynamic buffer its a structral change i think, so that invalidates other buffers you might have reference to

zinc plinth Jul 31, 2020, 2:41 PM

#

yes ^

pliant pike Jul 31, 2020, 2:42 PM

#

well that's just weird it invalidates all other buffers leahWTF

zinc plinth Jul 31, 2020, 2:42 PM

#

set your size with ResizeUninitialized, then add your elements by using AsNativeArray

#

and if you exec a structural change every buffer gets invalidated yes

pliant pike Jul 31, 2020, 2:43 PM

#

fair enough, thanks guys

opaque ledge Jul 31, 2020, 2:44 PM

#

i think the reason why adding/removing to/from a dynamic buffer is a structral change is because Unity might move the dynamic buffer to heap if you exceed initial capacity, so it does some chunk stuff

zinc plinth Jul 31, 2020, 2:45 PM

#

^

deft stump Jul 31, 2020, 3:28 PM

#

doesn't it allocate a new chunk for it?

#

okay

#

I dont understand this error

#

📎 unknown.png

pliant pike Jul 31, 2020, 3:40 PM

#

maybe its a class?

solar spire Jul 31, 2020, 3:41 PM

#

PlayerData is a struct

pliant pike Jul 31, 2020, 3:41 PM

#

I've had similar errors though where I've had to assign to a tempvar and then reassign that to the var that I want

solar spire Jul 31, 2020, 3:41 PM

#

you need to do the normal thing where you cache a variable

#

and reassign it to the array

deft stump Jul 31, 2020, 3:42 PM

#

so

psdata[i] = new PlayerData {value = 0;}

solar spire Jul 31, 2020, 3:43 PM

#

same as you do with Vector3's and transform.position

#

where you can't just go transform.position.x = 1

tardy spoke Jul 31, 2020, 3:54 PM

#

ADB logcat logs for Oculus Quest VR headset.

Seems to have some sort of error with burst compilation?

Could that explain ECS not working and the rest of stuff working? I guess it could since my monobehaviours don't use any jobs or anything I guess burst would touch...

📎 Screen_Shot_2020-07-31_at_9.51.19_AM.png

#

Wow. My clone somewhere else in the world has had the exact same issue at the exact same time... haha.

https://answers.unity.com/questions/1755666/cannot-load-lib-burst-0-0-on-android-builds.html

safe lintel Jul 31, 2020, 4:01 PM

#

@amber flicker do you know if that happens when you use withstructuralchanges too?

amber flicker Jul 31, 2020, 4:03 PM

#

@safe lintel not sure i understand the question well... WithStructuralChanges is saying you intend to make structural changes - therefore unsafe to e.g. iterate in a buffer and you will need to create arrays and dispose of them as above.

rancid geode Jul 31, 2020, 4:03 PM

#

@tardy spoke looking like a code stripping issue, IL2Cpp doesn't allow to totally disable it, so the way to fix that would be to add an link.xml and force include everything from Burst/Entities there

but this is more of a guess, haven't used Entities/Burst with Android/Quest builds yet

tardy spoke Jul 31, 2020, 4:04 PM

#

@rancid geode thanks for the advice, but I'm unfamiliar with the SBP entirely, and without a manual I wouldn't be sure how to do that, haha. Any resources on adding that link.xml to include those? I'm just downgrading those packages for now to see if that fixes it.

#

Also should I be switching the build from mono to IL2CPP?

rancid geode Jul 31, 2020, 4:07 PM

#

@tardy spoke actually this is not directly related to SBP itself, but how code stripping works. just add a link.xml file anywhere in your Assets folder or sub-folder and include the following content:

<linker>
  <assembly fullname="Unity.Burst" preserve="all" />
  <assembly fullname="Unity.Entities" preserve="all" />
</linker>

you may add more assemblies there as you wish

tardy spoke Jul 31, 2020, 4:07 PM

#

Very interesting... Not sure how you learned this stuff but it's useful info to know, haha.

safe lintel Jul 31, 2020, 4:07 PM

#

oh I see, need to drink more coffee

rancid geode Jul 31, 2020, 4:07 PM

#

Also should I be switching the build from mono to IL2CPP?
@tardy spoke hmm, though that you were using IL2Cpp already, not sure if Mono has any forced stripping

tardy spoke Jul 31, 2020, 4:08 PM

#

Nah I had it on mono, I tried IL2CPP and it built successfully. Could try again

rancid geode Jul 31, 2020, 4:09 PM

#

I suggest you to open a thread on the DOTS forum anyway, Unity staff usually replies with any known workaround for issues like that

#

Very interesting... Not sure how you learned this stuff but it's useful info to know, haha.
@tardy spoke neither do I to be honest haha this is the kind of stuff that just happens to be an issue to you once and then you never forget about haha

tardy spoke Jul 31, 2020, 4:10 PM

#

Yeah, well they'll probably want to be aware that Entities 0.13 potentially breaks Burst on Android, hahah

#

OT how many people here use Unity collab vs something like Github? Collab seems pretty... flakey.

hollow sorrel Jul 31, 2020, 4:43 PM

#

@tardy spoke i once worked for a company that used collab and i wrote an essay to convince management to switch to git that's how much i hate it

#

dunno how much it improved since then but at least at the time it's a total noobtrap that makes you think this is how version control normally is and you'll start to hate programming and think the future is bleak because of it

#

maybe develop a drinking problem in the process

tardy spoke Jul 31, 2020, 4:46 PM

#

Yeah I've noticed I've been drinking heavily of late

north bay Jul 31, 2020, 4:46 PM

#

I still get flash backs of that "Checking For Changes" thing

tardy spoke Jul 31, 2020, 4:46 PM

#

Lol, well, the weird thing about it is I don't think it actually cache's changes of Versions of Unity... it operates in a weird manner. It should store the entire state of the project if you restore, and like close Unity and go ACTUALLY back to it, but it seems like it uses some strange workarounds.

#

I don't feel very confident I could restore a project without errors

#

So then you end up deleting the library to redownload all packages and then for some reason it thinks that you need to re-sync with the server, and you can't do a force push overwrite, hahahaha

north bay Jul 31, 2020, 4:47 PM

#

We switched from collab to plastic, handles big projects really well.

tardy spoke Jul 31, 2020, 4:48 PM

#

Yeah, give me an alternative

#

My friend and I tried to use Collab JUST to build the world scene and it was a disaster. His changes would overwrite mine, vice versa, which they advertised it could do... we never got it to work a single time.

hollow sorrel Jul 31, 2020, 4:49 PM

#

couple of cons from my notes 2 years ago apparently

slows down your unity startup because it has to index your collab files every time
no branching
can't search commits
can't see per-file changes
UI doesn't show more than last 5 commits or you gotta scroll through a paginator 5 commits at a time if you want to see older history
can't easily ignore certain files from your commit (as in pick the stuff you want to commit, leave your local debug changes local instead of commit that to server)

#

some of these might've been fixed since then

tardy spoke Jul 31, 2020, 4:50 PM

#

no branching is reason enough

#

I mean branching isn't as common in game dev as it is in other stuff, but still for little experiments and stuff it seems pretty important

north bay Jul 31, 2020, 4:52 PM

#

- slows down your unity startup because it has to index your collab files every time
That's such a big minus, especially for something like dots where your project potentially crashes 5 times a day.
Just having to wait 10 minutes every time so that the freaking Checking for changes goes away.
Unusable for bigger projects

hollow sorrel Jul 31, 2020, 4:53 PM

#

give me an alternative
i use https://git-fork.com/ as client, github/gitlab for hosting private repos (they're both about equal pros/cons now i think so dunno which one i'd recommend)
there's a ton of different git clients or just commandline that some ppl use so might wanna check out others if you don't like fork, this is just what i settled on after trying the others

tardy spoke Jul 31, 2020, 4:54 PM

#

Hmm, yeah might just go github, my project uses all vertex colors so it isn't huge in filesize or anything

#

my company used gitlab but I think for some reason is switching to github, I'll have to ask 'em why. I think it's something to do with CI runner reliability or something esoteric.

#

I feel Unity may want to develop experimental packages as "one package" at first and split the packages up when they're more mature/stable.

#

Based on how changing one dots package.... destroys the universe.

#

W/ a bi-weekly release cycle or something

amber flicker Jul 31, 2020, 5:06 PM

#

two more important collab notes (though I must confess I sometimes use it for temp, one person projects when I'm v lazy) - deleted files are gone forever(!!!) and yea.. sometimes collab.tick() will just randomly make the editor extremely unresponsive (600ms main thread hang per frame or smth) I presume if it's struggling to reach the server or smth

tardy spoke Jul 31, 2020, 5:06 PM

#

Welp. This is it. I downgraded to entities 0.11. If the ECS cube still doesn't rotate in Oculus VR... I will... continue trying other solutions. But I'll be upset about it.

amber flicker Jul 31, 2020, 5:09 PM

#

you have a cube that's rotating in a build but not on oculus?

tardy spoke Jul 31, 2020, 5:09 PM

#

Yes

#

It works now

#

Lol, I spent 8 hours on this problem. Just solved it by downgrading entities and related packages to 0.11.

amber flicker Jul 31, 2020, 5:10 PM

#

oof

#

android build issue?

tardy spoke Jul 31, 2020, 5:11 PM

#

Yes, I'm sure it affects Android in general. This is what it looks like when it's working

#

📎 Screen_Shot_2020-07-31_at_11.10.42_AM.png

#

Which is weird because it still is like "I can't find burst!"

#

This is entities 0.13 when it's not working

📎 Screen_Shot_2020-07-31_at_11.11.19_AM.png

#

https://answers.unity.com/questions/1755666/cannot-load-lib-burst-0-0-on-android-builds.html <-- this guy reporting same issue 4 days ago

Cannot load "lib_burst_0_0" on Android builds - Unity Answers

Unity is the ultimate game development platform. Use Unity to build high-quality 3D and 2D games, deploy them across mobile, desktop, VR/AR, consoles or the Web, and connect with loyal and enthusiastic players and customers.

amber flicker Jul 31, 2020, 5:13 PM

#

huh.. wonder if it works with 0.13 with burst disabled?

north bay Jul 31, 2020, 5:19 PM

#

As far as I'm aware it will just run the code normally if it isn't able to locate the burst generated dll

tardy spoke Jul 31, 2020, 5:22 PM

#

@amber flicker tried that, nope

#

the burst error is actually in both, but one still runs

#

📎 errors.png

#

However... I think this made me go back to the old version of hybrid renderer which I don't think has that DisableRendering tag which ... makes my project pure shit.

amber flicker Jul 31, 2020, 5:24 PM

#

hopefully they'll fix it soon - your floating origin stuff is working well though?

tardy spoke Jul 31, 2020, 5:26 PM

#

Uhh ... yeah it seems to have survived the downgrade hahah

#

did you see the vid I made of it a couple days ago?

#

entityManager.SetName(physicsFacadeEntity, "PhysicsFacade"); <-- is there an ECB compatible way to set an entities name or no?

amber flicker Jul 31, 2020, 5:27 PM

#

there isn't

deft stump Jul 31, 2020, 5:27 PM

#

no

amber flicker Jul 31, 2020, 5:27 PM

#

yea think I did see the vid

tardy spoke Jul 31, 2020, 5:27 PM

#

Good.

#

That'd be too convinient.

#

I like to struggle through EVERYTHING.

amber flicker Jul 31, 2020, 5:27 PM

#

think strings just = pain generally

deft stump Jul 31, 2020, 5:27 PM

#

setname is, again, an editor only thing for your convenience during debugging.

#

it makes sense that ecb doesn't have it

tardy spoke Jul 31, 2020, 5:28 PM

#

by editor only you don't mean mono behaviour, you mean like actually a unity editor asset or what?

deft stump Jul 31, 2020, 5:28 PM

#

untiy editor

amber flicker Jul 31, 2020, 5:28 PM

#

it gets stripped in a build

tardy spoke Jul 31, 2020, 5:28 PM

#

ah

amber flicker Jul 31, 2020, 5:29 PM

#

on the plus side.. no 1000's of gameobjects floating around with string names 'GameObject (3)' for no reason 🙂

safe lintel Jul 31, 2020, 5:30 PM

#

that really makes my ocd flare up 😄

tardy spoke Jul 31, 2020, 5:34 PM

#

Noiiice got it. Reverting to older project version stripped this flag out.

📎 Screen_Shot_2020-07-31_at_11.33.42_AM.png

#

Which obviously made the DisableRendering tags not work haha

#

Is it generally better to build with IL2CPP or Mono?

deft stump Jul 31, 2020, 5:35 PM

#

IL2CPP

tardy spoke Jul 31, 2020, 5:35 PM

#

I notice it takes longer lol

deft stump Jul 31, 2020, 5:35 PM

#

because it's converting it to C++ code

tardy spoke Jul 31, 2020, 5:35 PM

#

I watched some videos but wasn't really sure of the benefits, though it sounded like there were some

#

Coolness.

deft stump Jul 31, 2020, 5:36 PM

#

obvious benefit is your game will run faster if you build with il2cpp

tardy spoke Jul 31, 2020, 5:37 PM

#

Also this is super enlightening for anyone making mobile games. This guy from Oculus rips apart URP for all the unnecessary crap it does out of the box and shows how to optimize it.

https://youtu.be/PUK2-GzXuso?t=1776

amber flicker Jul 31, 2020, 5:40 PM

#

Speed dif pretty minimal when I checked before - good to know you can build both but while deving faster builds wins for me

tardy spoke Jul 31, 2020, 5:51 PM

#

Yeah, I would do mono for quick builds and experiment with the other for production builds

#

Also amazingly 3 cubes and a sphere with a simple vertex color shader I made sits at 70% GPU usage on the Oculus Quest. What a power house.

#

Gonna need to look into that...

north bay Jul 31, 2020, 7:08 PM

#

Does IL2CPP actually use burst?

#

from 5 min mono build time to 27 min il2cpp

#

And from 15.55ms mono to 23.47ms median frame time il2cpp

tardy spoke Jul 31, 2020, 8:09 PM

#

Woah. New controller input system is awesome.

zinc plinth Jul 31, 2020, 9:10 PM

#

seems like a bit of a pain to make work with dots tho

tardy spoke Jul 31, 2020, 9:16 PM

#

really why's that @zinc plinth ?

#

Just due to implementing them into various systems?

zinc plinth Jul 31, 2020, 9:20 PM

#

you can't use systems you have to use MB that's the thing

#

at least that's how I understood it

#

and I can'(t really find docs on this either

mint iron Jul 31, 2020, 9:35 PM

#

they've provided no good way of connecting it with dots. I've seen code where people wire the input action events to create stuff in dots, like modifying a singleton or setting an event entity.

#

You can quickly dump the input buffer to a component which is actually quite nice and extremely fast, just one block copy to a locked chunk ptr. But, you wont be able to use the actions mapping system which is kinda the best part of the new system.

zinc plinth Jul 31, 2020, 9:36 PM

#

yea..

#

for now I have a InputController MB that does some dots stuff in World.Default....; which isn't the best

mint iron Jul 31, 2020, 9:40 PM

#

i came up with a MB mapping of Action to ECS component, and then the rest is automated posting actions as event entities with my events system. But there are still some issues to iron out.

zinc plinth Jul 31, 2020, 9:40 PM

#

do you bundle all your actions in a single singleton component or 1 component per action ?

mint iron Jul 31, 2020, 9:41 PM

#

its a seperate entity each time with a component containing the action info

zinc plinth Jul 31, 2020, 9:41 PM

#

hoo ok

mint iron Jul 31, 2020, 9:42 PM

#

yeah, i mean, for some actions its putting through a hundred events per frame which is wasteful

#

here's the repo, made it public, i havent worked on it in a few months been too busy https://github.com/jeffvella/UnityEcsEventsInput

GitHub

jeffvella/UnityEcsEventsInput

An ECS Events add-on for routing InputSystem Actions into entities/components - jeffvella/UnityEcsEventsInput

zinc plinth Jul 31, 2020, 9:44 PM

#

aight thanks, I'll take a look at it

#

huuuh, that's a more convoluted setup than I immagined

#

trying to find the problems I would have if I just create a InputStateComponent with all my actions and just use it as singleton in my systems

mint iron Jul 31, 2020, 9:54 PM

#

the ClassTypeRef by Rotorz lets you have a UI dropdown of components implementing an interface, which is cool because then you can associate an input action with a component

#

then in that interface (derived from IComponentData) have a method so the component can set its own data based on the action.

#

and then u just need to marry the two sides, in a system or whatever, that for each action, passes the data to the component, and sets it on the singleton

tardy spoke Jul 31, 2020, 10:01 PM

#

Lol, all I tried was this and it worked, so I was excited.

📎 Screen_Shot_2020-07-31_at_3.16.59_PM.png

mint iron Jul 31, 2020, 10:02 PM

#

🙂 that works, but the actions are the cool part

tardy spoke Jul 31, 2020, 10:03 PM

#

Oh, didn't even know that was a thing, haha.

I was just looking for a simple way to swap from keyboard when I hit play in Unity, to VR controls when I do a build. It's soooo annoying to put on and take off a VR headset ALLLLL the time.

mint iron Jul 31, 2020, 10:04 PM

#

the idea that you setup logical things that happen like 'Punch' or 'Jump' and then there is a mapping UI that you rebind those things to, for like a gamepad it might be the X button, and for keyboard it would be the ENTER key etc.

tardy spoke Jul 31, 2020, 10:04 PM

#

Yeah, isn't that what I did? 🙂

#

... I hope

#

It's what I'm trying to do anyway. Painful though because Oculus seems to be in the middle of ditching their own stuff in favour of generic XR stuff, so it's kind of anyone's guess as to what will actually work right now hahah

#

📎 Screen_Shot_2020-07-31_at_4.04.52_PM.png

#

I guess it's the generic "drivers" now because it just worked for the first time, haha.

north bay Jul 31, 2020, 10:09 PM

#

Can you modify the KeyCode for the mapped actions through code?

tardy spoke Jul 31, 2020, 10:21 PM

#

It's been so long anything in my project has actually worked without taking days of troubleshooting I'm actually in shock.

#

@north bay it compiles it all down into code that looks like this

#

weird, it's JSON lol

📎 Screen_Shot_2020-07-31_at_4.22.09_PM.png

#

same file, lower down

📎 Screen_Shot_2020-07-31_at_4.22.21_PM.png

#

So seeing as it's embedded in some sort of JSON thing I guess... probably not?

zinc plinth Jul 31, 2020, 10:58 PM

#

@tardy spoke use a control scheme for each "way"/device you want to use for tht input

#

so that it doesn't look like a mess in the window and you can edit them easier

deft stump Aug 1, 2020, 1:03 AM

#

here's my implementation of new input system w/ dots

#

https://hatebin.com/hzgncyknqh

#

making this work was quite the endeavor

tight blade Aug 1, 2020, 1:11 AM

#

Sorry to cut in, @deft stump, that sounds awesome. -- anyone a decent hand with quaternions? I want to "set" a quaternions EulerX and EulerZ to 0 while maintaining its current EulerY (want to level its orientation while maintaining its heading). would be great to just say

localToWorld.Value = float4x4.TRS(localToWorld.Position, quaternion.EulerXYZ(0, localToWorld.Rotation.toEuler().y, 0), 1)

#

but alas, there is no such thing as .toEuler()

deft stump Aug 1, 2020, 1:20 AM

#

rotation?
there is a rotation component you can manipulate though

tight blade Aug 1, 2020, 1:25 AM

#

its a child. I need it to be world level

tardy spoke Aug 1, 2020, 1:26 AM

#

I'm pretty sure there is a Euler method available or something

#

for the new math library

#

thought I saw it

tight blade Aug 1, 2020, 1:26 AM

#

there are a lot of forum posts asking for such a functionality, and a lot of resistance to creating it

tardy spoke Aug 1, 2020, 1:27 AM

#

really? Hmm

tight blade Aug 1, 2020, 1:27 AM

#

rotations are more efficiently stored as quaternions, and there converting to Euler is actually really complex, apparently.

tardy spoke Aug 1, 2020, 1:27 AM

#

I usually do something like quaternion.AxisAngle(math.up(), degrees).

tight blade Aug 1, 2020, 1:27 AM

#

there's a math.up?

tardy spoke Aug 1, 2020, 1:27 AM

#

😉

#

Not just a pretty face

tight blade Aug 1, 2020, 1:29 AM

#

huh. now, I have no idea what quaternion.LookRotation actually does... but based purely on how that function sounds, I wonder if I can do quaternion.LookRotation(localToWorld.Forward, math.up())

tardy spoke Aug 1, 2020, 1:30 AM

#

Hmm, I wonder if you're trying to do something similar to my setup.

Are you trying to do a character controller that "stands up", moves where it's looking and doesn't have "vertical" mouselook?

tight blade Aug 1, 2020, 1:33 AM

#

not quite, but the intermediate problem may be the same. I need to keep an object level that is still looking the same direction as the character so that I can detect the relative position of other objects nearby

tardy spoke Aug 1, 2020, 1:33 AM

#

oh,

#

check this out

mighty whale Aug 1, 2020, 1:34 AM

#

So hum is there anyway to use a Dictionnary with custom type in a ScheduleParallel job ?

#

because I have been having this error and i'm not able to overcome it

📎 unknown.png

tardy spoke Aug 1, 2020, 1:35 AM

#

This is a bit confusing probably, but this is how I "parent" a camera to a movable character so it copies their movements directly. I believe you could just put an offset.

#

📎 Screen_Shot_2020-07-31_at_7.33.49_PM.png

#

not sure how you would put the offset to local to world, but could also use translation I think

tight blade Aug 1, 2020, 1:36 AM

#

right yeah. that would copy the x and z orientation, though

#

I need to only copy the y orientation

#

which is tricky

tardy spoke Aug 1, 2020, 1:37 AM

#

physicsFacadePlayerCamera.value.transform.rotation.y = transform.value.y ?

#

I think I must be missing something lol

#

Either I'm getting SUPER GOOD at this, or I'm so bad I don't understand what you're talking about at all. Most likely the latter.

tight blade Aug 1, 2020, 1:37 AM

#

you can use it in a schedule parallel, @mighty whale , you just need to do it without burst

tardy spoke Aug 1, 2020, 1:38 AM

#

could you not also physicsFacadePlayerCamera.value.transform.rotation.z = 0; or whatever?

#

why u gotta be all fancy with the quaternions bro!?

tight blade Aug 1, 2020, 1:39 AM

#

hahaha, how are you using a transform in an entity?

tardy spoke Aug 1, 2020, 1:39 AM

#

Translation*

#

sorry, I get 'em mixed up. TOO MUCH KNOWELDGE.

tight blade Aug 1, 2020, 1:39 AM

#

wait what now? thats now what your code snippet does

tardy spoke Aug 1, 2020, 1:40 AM

#

No? But you don't have to be me. You're free to be your own man.

#

Oh yeah because the rotation is a quaternion you mean?

tight blade Aug 1, 2020, 1:40 AM

#

but... Translations dont have a rotation...

tardy spoke Aug 1, 2020, 1:40 AM

#

and that's why you need the Euler angle conversion? hahah

tight blade Aug 1, 2020, 1:40 AM

#

cause they're... translations..

tardy spoke Aug 1, 2020, 1:40 AM

#

Right, you know what I mean.

#

Or probably not.

tight blade Aug 1, 2020, 1:41 AM

#

I feel inconsistently successful at being sure of what you mean

tardy spoke Aug 1, 2020, 1:41 AM

#

🤷‍♂️ I dunno, maybe if I was more sure of what you mean I'd be able to figure out a solution, but most likely... not.

tight blade Aug 1, 2020, 1:42 AM

#

because yeah, basically, if I could just access and change the y value directly I would

tardy spoke Aug 1, 2020, 1:42 AM

#

For the Y on the rotation?

#

right?

mighty whale Aug 1, 2020, 1:43 AM

#

@tight blade Thanks ! however it seems i'm getting the same error when i do without burst and schedule parallel

tight blade Aug 1, 2020, 1:43 AM

#

right, yeah. But remember, Rotation.Value.y does not refer to its rotation on the y axis, it refers to its position on a 4 dimensional hypersphere... cause quaternions

tardy spoke Aug 1, 2020, 1:43 AM

#

Gotcha, because you can't transfer to EulerAngles. Right.

tight blade Aug 1, 2020, 1:44 AM

#

right, yeah

#

@mighty whale hmm, what dictionary type are you using?

mighty whale Aug 1, 2020, 1:45 AM

#

protected override void OnUpdate() {
  Dictionary<Model.WorldType, World> worlds = Universe.worlds;
  Entities
    .WithName("ChunkMeshUpdate")
    .WithAll<MeshUpdate, RenderBounds>()
    .ForEach((
      Entity entity,
      in Translation translation, in WorldType worldType
    ) => {
      // use of worlds somewhere
    ).WithoutBurst().ScheduleParallel();
}

tardy spoke Aug 1, 2020, 1:45 AM

#

Toss RotationEulerXYZ : IComponentData on it?

#

so it has Eulers?

#

I think that's a thing @tight blade

mighty whale Aug 1, 2020, 1:45 AM

#

i'm using custom types inside, is that what causes the problem :v ?

tight blade Aug 1, 2020, 1:45 AM

#

what?

#

if thats a thing...

tardy spoke Aug 1, 2020, 1:46 AM

#

https://docs.unity3d.com/Packages/com.unity.entities@0.0/api/Unity.Transforms.RotationEulerXYZ.html

#

hmm that's 0.0

deft stump Aug 1, 2020, 1:46 AM

#

alex, they already have a rotation component if you convert your go's

tardy spoke Aug 1, 2020, 1:46 AM

#

@deft stump nah we're trying to find a way to use EulerAngles from a quaternion with unity.math

tight blade Aug 1, 2020, 1:47 AM

#

https://docs.unity3d.com/Packages/com.unity.entities@0.0/api/Unity.Transforms.RotationEulerXYZ.html
motha of gawd

amber flicker Aug 1, 2020, 1:47 AM

#

yea - be sure to look at latest docs - if you replace Rotation with one of those, that will probably do what you want

deft stump Aug 1, 2020, 1:47 AM

#

you're trying to set a rotation right?

tardy spoke Aug 1, 2020, 1:47 AM

#

Hmmmm yea apparently that's not a thing anymore.

tight blade Aug 1, 2020, 1:47 AM

#

ah yeah @mighty whale that code is not parallelizeable because you're giving multiple threads write access to the same piece of data

amber flicker Aug 1, 2020, 1:47 AM

#

though just a thought - does the entity need to even rotate in the first place?

mighty whale Aug 1, 2020, 1:48 AM

#

ah but I'm only reading from it though

tardy spoke Aug 1, 2020, 1:48 AM

#

Does anything REALLY need to rotate? 🤔

#

Like NEED to though...

amber flicker Aug 1, 2020, 1:48 AM

#

only perfect spheres

tardy spoke Aug 1, 2020, 1:48 AM

#

Like the Earth. Or the sun. 🤷‍♂️

deft stump Aug 1, 2020, 1:48 AM

#

yes.

tight blade Aug 1, 2020, 1:48 AM

#

I wonder if theres a way to mark it as a read only. like copying the value into each

amber flicker Aug 1, 2020, 1:49 AM

#

what sets the rotation in the first place?

tight blade Aug 1, 2020, 1:49 AM

#

it seems whatever Entities.ForEach is doing isnt smart enough to realize that intention, @mighty whale

amber flicker Aug 1, 2020, 1:49 AM

#

is it physics?

deft stump Aug 1, 2020, 1:50 AM

#

doesn't quarternion.Euler take in radians not degrees?

amber flicker Aug 1, 2020, 1:50 AM

#

yes - that's correct - though we're talking about converting quaternion to euler

tight blade Aug 1, 2020, 1:51 AM

#

right. yeah this matches my use case precisely.

#

probably. Im trying it now.

deft stump Aug 1, 2020, 1:51 AM

#

yes - that's correct - though we're talking about converting quaternion to euler
aaaaaaaaah...
so that's what we're discussing...

tardy spoke Aug 1, 2020, 1:52 AM

#

So weird... the camera rotates WITH the character in Unity with a mouse, but then the character rotates but the camera doesn't on Oculus Quest. 🤔 Gonna have to redesign mah whooooole gameeeee....

amber flicker Aug 1, 2020, 1:53 AM

#

isn't it just because the oculus sdk overrides the camera?

tardy spoke Aug 1, 2020, 1:53 AM

#

... shit I hope not

#

I dunno the camera still does some things "right".

#

like the camera moves with the character as expected, but it doesn't rotate. It could be because it replaces it behind the scenes, but it's a regular XR VR camera with just the tracked pose driver on it.

#

Hmm maybe I can parent the camera to the player themselves so if it does get replaced it should still rotate... actually I think that already is how it works.

amber flicker Aug 1, 2020, 1:55 AM

#

your character never leaves 0,0,0 though right? so it might appear to be moving with the camera but not? 😄

tardy spoke Aug 1, 2020, 1:56 AM

#

It's so confusing 🤔

#

Haha yeah I have cameras on both characters and the physics one does follow along and copy it's rotation and stuff.

#

Hmmmmmm...

#

@amber flicker yeah I guess if it does replace the camera or something I'll just have to switch this to be a GO holding the camera... that oughta do it, maybe... haha.

📎 Screen_Shot_2020-07-31_at_8.02.55_PM.png

tardy spoke Aug 1, 2020, 2:20 AM

#

Ah good, progress has been made.

Though now I have a more traditional issue of a mouse and a joystick controller are not the same "thing", haha. The controller thumbstick likes to snap back to 0, so I'll have to figure that out.

📎 com.DefaultCompany.RealHeroes_DOTS-20200731-201551111.mp4

tight blade Aug 1, 2020, 2:40 AM

#

ehhh. unfortunately RotationEulerXYZ doesn't help me :C

#

its the local rotation. I need the world rotation. Although this may have given me inspiration on how to solve this.

tardy spoke Aug 1, 2020, 2:46 AM

#

lol... this is a bit of a conundrum.

The mouse needs this:

📎 Screen_Shot_2020-07-31_at_8.46.09_PM.png

#

The thumbstick needs this:

📎 Screen_Shot_2020-07-31_at_8.46.03_PM.png

#

@tight blade Always glad to inspire others.

deft stump Aug 1, 2020, 7:40 AM

#

so I can't change texture of a material in runtime?

zinc plinth Aug 1, 2020, 7:54 AM

#

Use material property blocks hybrid renderer equivalent

deft stump Aug 1, 2020, 7:55 AM

#

material property blocks?

#

aaaaaaaaah. you mean that...

acoustic spire Aug 1, 2020, 9:03 AM

#

Hello. After watching a couple of tutorials about DOTS I wonder how would one organize a voxel engine for Minecraft clone game. Would it be more performant to keep using chunks of blocks (basically, mesh per chunk) instead of assigning mesh to every block?

opaque ledge Aug 1, 2020, 11:09 AM

#

you can find plenty of discussion of that topic in DOTS forums

odd cipher Aug 1, 2020, 12:24 PM

#

I would still recommend having one mesh for a chunk instead of individual blocks, otherwise you would still have plenty of lag even with DOTS @acoustic spire

deft stump Aug 1, 2020, 12:33 PM

#

Hrmmmm

zinc plinth Aug 1, 2020, 12:40 PM

#

There's à lot of optimization for how minecraft renders it's terrain

#

It's not just 1 block = 1 mesh

#

Otherwise
1 your cpu would be pinned by culling alone
2 your vram would also be full instantly

acoustic spire Aug 1, 2020, 1:07 PM

#

Thanks

#

Also, my Rider doesn't see Unity.Entities but I have the package installed. Did I miss something?

📎 unknown.png

hollow sorrel Aug 1, 2020, 1:13 PM

#

@acoustic spire are you using an asmdef file?

acoustic spire Aug 1, 2020, 1:14 PM

#

yes

hollow sorrel Aug 1, 2020, 1:14 PM

#

gotta add it there too

#

prob want most of these

📎 unknown.png

acoustic spire Aug 1, 2020, 1:19 PM

#

Ah, ok. Thanks

zinc plinth Aug 1, 2020, 3:27 PM

#

always start unity first then rider/vs; otherwise yes you'll have problems with assembles

acoustic spire Aug 1, 2020, 5:21 PM

#

It throws NullReferenceException in line 52

📎 unknown.png

#

Bug or I use it wrong?

#

System.NullReferenceException : Object reference not set to an instance of an object.
   at Unity.Collections.LowLevel.Unsafe.AtomicSafetyHandle.CheckWriteAndThrow(AtomicSafetyHandle handle)
   at Unity.Entities.DynamicBuffer`1.CheckWriteAccessAndInvalidateArrayAliases()
   at Unity.Entities.DynamicBuffer`1.EnsureCapacity(Int32 length)
   at Unity.Entities.DynamicBuffer`1.ResizeUninitialized(Int32 length)
   at Server.Chunk..ctor(World world, Int32 x, Int32 y, Int32 z) in C:\Users\xotonic\CraftAndSlay\Assets\Scripts\Server\Chunk.cs:line 52
   at Tests.BasicTest.ChunkSizeIsComputedCorrectly() in C:\Users\xotonic\CraftAndSlay\Assets\Scripts\Tests\BasicTest.cs:line 96

acoustic spire Aug 1, 2020, 5:43 PM

#

Btw, what would be an alternative to Block[] in a component?

opaque ledge Aug 1, 2020, 5:59 PM

#

FixedList<Block>

#

i am not really sure if you can just create a dynamic buffer like that

#

they suppose to live on entities i think, just create a dummy entity and place your dynamic buffer there thru entity manager

zinc plinth Aug 1, 2020, 6:21 PM

#

you don't create a dynamic buffer, the EntityManager does it's stuff for you

#

and if you have an array of data in a ICD it's way better to just make it a IBED

#

unless you have a really strong reason not to and you know what you're doing

acoustic spire Aug 1, 2020, 6:24 PM

#

Yeah, got it. I wanted not to bring entityManager in instantiation of my ICD

#

ty

acoustic spire Aug 2, 2020, 12:38 AM

#

Getting strange frustum culling for entities (cubes in the video). The cylinder is a non ECS game object.

📎 dots_culling_wut.mp4

#

Do I need to adjust render bounds manually?

#

RecalculateBounds didn't help

#

Also can't access AABB. Hybrid renderer is installed

📎 unknown.png

#

Alright. Looks like I need to switch to V2 renderer. My issue is the same as this one
https://forum.unity.com/threads/issue-with-rendermesh-component-mesh-not-displayed.835858/

acoustic spire Aug 2, 2020, 3:07 AM

#

Solved. I updated to 2020.1.0f1 and added mathematics.extensions to assembly definition. Dunno what actually fixed this 😄

lusty otter Aug 2, 2020, 7:52 AM

#

I see a common pattern being allocating a TempJob native array as input/output for a job, and then disposing it when the job is done.

#

Why not allocate a Persistent one once at set up, use it throughout its lifetime (assuming jobs won't overlap) and then dispose it at the end?

opaque ledge Aug 2, 2020, 8:02 AM

#

well you shouldnt dispose it if job is running multiple times, apart from that, its a good question

deft stump Aug 2, 2020, 8:03 AM

#

I actually want to answer but i stopped and thought about it...

#

maybe because it'll be a pain to manually dipose if you have lots and lots of persistent native arrays?
lots of room for faults to happen

tawdry tree Aug 2, 2020, 8:32 AM

#

You might also need to resize it, which has the same affect as just using it temp

lusty otter Aug 2, 2020, 8:49 AM

#

Hmm, I don't supposed there's any more overhead in accessing/writing a Persistent allocated one comparing to a Temp/TempJob one?

#

The only difference from what documentation says, seems to be just allocation speed/cost.

#

In that case assuming I can manage correctly disposing and array size won't change, I think one allocation then reusing is just better.

scarlet inlet Aug 2, 2020, 10:03 AM

#

Hello, sunday question, I was wondering how c# copies large structs when we just assign structs and how burst behaves. Have you ever done any test about it?

north bay Aug 2, 2020, 12:03 PM

#

I think C# breaks at a certain size, i remember this from a "bug" with Dots Netcode: InvalidProgramException: Passing an argument of size '10568'

stiff skiff Aug 2, 2020, 12:31 PM

#

I mean, thats just a struct thats too big

deft stump Aug 2, 2020, 2:57 PM

#

and that applies to only 1 struct. not the collective

zinc plinth Aug 2, 2020, 3:46 PM

#

for ppl wondering about creating game with dots, streaming the very beginning of my city builder

#

hope this doesn't qualify as ads against the rules ?

opaque ledge Aug 2, 2020, 3:51 PM

#

should be fine i think, you might put it to #archived-resources instead? not sure, worst thing that can happen is moderator will just guide you to right direction

zinc plinth Aug 2, 2020, 3:53 PM

#

done

hollow jolt Aug 2, 2020, 5:34 PM

#

where to get started if i want to implement existing coroutine code ( fill bucket for texture2d ) into multi threading ?

zinc plinth Aug 2, 2020, 5:54 PM

#

rewrite your coroutine with jobs

hollow jolt Aug 2, 2020, 6:01 PM

#

do i need all the ECS packages* for that or can jobs be used on its own ?

deft stump Aug 2, 2020, 6:05 PM

#

you can use jobs and burst on its own

hollow jolt Aug 2, 2020, 6:09 PM

#

any suggestions for reading materials ? search engine brings up unity jobs "careers"

deft stump Aug 2, 2020, 6:09 PM

#

search for unity job system

#

or unity C# jobs

hollow jolt Aug 2, 2020, 6:10 PM

#

true

hollow jolt Aug 2, 2020, 6:41 PM

#

what is this burst compiler black magic ? ( y is it so fast )

#

will it be auto enabled on compilation to androind / ios ? ( i see u need to enable burst in the context menu under jobs > burst > enable burst compiler )

opaque ledge Aug 2, 2020, 6:48 PM

#

i think there is a setting for that in project settings (to enable/disable burst in build)

hollow jolt Aug 2, 2020, 7:02 PM

#

anyone knows what is the optimal way to to make a jobs to work with texture2D getpixel / setpixel ?

lusty otter Aug 2, 2020, 7:03 PM

#

Don't use them to begin with.

#

Pass in all the necessary information you will need for the job, and pass out all the output you need, then do one SetPixels.

hollow jolt Aug 2, 2020, 8:17 PM

#

InvalidOperationException: FloodFillJob.outMap is not a value type. Job structs may not contain any reference types.

how do i pass Color32[] data outside of the job ?

[BurstCompile]
public struct FloodFillJob : IJob
{
  // ...
  public Color32[] outMap;
  public void Execute( ) { 
    // ..
    outMap = WriteMap.ToArray(); // NativeArray<Color32>
    WriteMap.Dispose();
  } 
}

opaque ledge Aug 2, 2020, 8:25 PM

#

you cant, you have to use NativeArray instead of Array or List classes

#

so create native array out of array, use that inside the job and after you schedule your job do .Complete() and you can use your native array safely

hollow jolt Aug 2, 2020, 8:30 PM

#

is it normal to dispose a native array outside of the job execute ?

opaque ledge Aug 2, 2020, 8:30 PM

#

yeah, so you create the native array with Allacator.TempJob, and after you are done with your native array you dispose it

#

so you dispose the native array outside of the job, not inside

hollow jolt Aug 2, 2020, 8:32 PM

#

so Allocator.Temp is inside the job , while Allocator.TempJob is outside the job ?

opaque ledge Aug 2, 2020, 8:33 PM

#

to use a native array ? yeah, if you want to just create a native array inside the job for internal usage you go with Allocator.Temp, but if you are passing a native array to a job then you creat the native array with Allocator.TempJob

hollow jolt Aug 2, 2020, 8:33 PM

#

i see, thanks

#

looks like it doesn't like native queues

#

D:\UnityGitMy\__project__\Library\PackageCache\com.unity.collections@0.9.0-preview.6\Unity.Collections\NativeQueue.cs(96,17): Burst error BC1042: The managed class type `Unity.Collections.NativeQueueBlockPoolData*` is not supported. Loading from a non-readonly static field `Unity.Collections.NativeQueueBlockPool.pData` is not supported

 at Unity.Collections.NativeQueueBlockPool.get_QueueBlockPool() (at D:\UnityGitMy\__project__\Library\PackageCache\com.unity.collections@0.9.0-preview.6\Unity.Collections\NativeQueue.cs:96)
 at Unity.Collections.NativeQueue`1<FloodFillJob.Point>..ctor(Unity.Collections.NativeQueue`1<FloodFillJob.Point>* this, Unity.Collections.Allocator allocator) (at D:\UnityGitMy\__project__\Library\PackageCache\com.unity.collections@0.9.0-preview.6\Unity.Collections\NativeQueue.cs:276)
 at FloodFillJob.Execute(FloodFillJob* this) (at D:\UnityGitMy\__project__\Assets\Project\Script\Vector\FloodFillJob.cs:50)
 at Unity.Jobs.IJobExtensions.JobStruct`1<FloodFillJob>.Execute(ref FloodFillJob data, System.IntPtr additionalPtr, System.IntPtr bufferRangePatchData, ref Unity.Jobs.LowLevel.Unsafe.JobRanges ranges, int jobIndex)

opaque ledge Aug 2, 2020, 8:48 PM

#

you seem to be using classes, you cant use any class inside jobs

hollow jolt Aug 2, 2020, 8:48 PM

#

NativeQueue<Point> Q = new NativeQueue<Point> ( Allocator.Temp );
// .. error points me here ( an empty line between those two ) 
Q.Enqueue ( new Point { x = x, y = y , d = FillDir.Start } );

#

Point is a struct

#

FillDir is an enum

opaque ledge Aug 2, 2020, 8:50 PM

#

hmm

#

can you perhaps upgrade collections package ?

hollow jolt Aug 2, 2020, 8:51 PM

#

sure

#

📎 unknown.png

#

looks like its the latest

opaque ledge Aug 2, 2020, 8:52 PM

#

thats Collaborate package 😄

hollow jolt Aug 2, 2020, 8:52 PM

#

oh lol forgive my 4 am eye sight

opaque ledge Aug 2, 2020, 8:53 PM

#

dw, happens to best of us

hollow jolt Aug 2, 2020, 8:53 PM

#

📎 unknown.png

opaque ledge Aug 2, 2020, 8:54 PM

#

are you using 2020.1 ?

hollow jolt Aug 2, 2020, 8:54 PM

#

2019.4.f1

west shore Aug 2, 2020, 8:54 PM

#

Is 2017 unity still good

hollow jolt Aug 2, 2020, 8:54 PM

#

i think i upgraded some packages

#

just because latest packages where available

#

not sure if it was this one or the Jobs one

opaque ledge Aug 2, 2020, 8:55 PM

#

kinda sounds weird tho, can you show us the code where you create the array, pass it to job and dispose ?

hollow jolt Aug 2, 2020, 8:55 PM

#

sure

opaque ledge Aug 2, 2020, 8:56 PM

#

what burst package you are using ?

#

what version i mean 😄

hollow jolt Aug 2, 2020, 8:57 PM

#

1.3.3 <---- using this one atm

#

the next one after the verified one ( 1.2.3 )

opaque ledge Aug 2, 2020, 8:58 PM

#

alright, can you show the code

hollow jolt Aug 2, 2020, 8:58 PM

#

this is how i use it :

var map = new NativeArray<Color32>( Image.texture.GetPixels32(), Allocator.TempJob );

var fillJob = new FloodFillJob
{ 
    TextureWidth = Image.texture.width, 
    TextureHeight = Image.texture.height,
    outWriteMap = new NativeArray<Color32>( Image.texture.width * Image.texture.height, Allocator.TempJob ),
    fillColor = Color.white ,
    tollerance = tolarance,
    x = pixel.x, y = pixel.y,
    ReadMap = map
};

JobHandle jobHandle = fillJob.Schedule();
jobHandle.Complete();

var color32Arr = fillJob.outWriteMap.ToArray();

fillJob.outWriteMap.Dispose();
map.Dispose();

if( fillJob.outCount < 1 ) 
{
    Destroy( targetTex );
    Destroy( activeGo );
    return;
} 
        
sr.enabled = true;
sr.color = fillColor;

activeGo.GetComponent<SvgFilledItem>().fillBounds = fillJob.outBounds;
        
targetTex = null;
activeGo = null;

targetTex.SetPixels32( color32Arr );
targetTex.Apply();

#

and this is the Job class : https://hatebin.com/twvcypdovy

#

so roughly speaking im creating NativeQueue inside the execute

#

and the other two native arrays are created outside of the job ( and they are disposed there as well )

#

2 textures in play

#

image.texture to read info from

#

outWriteMap is the populated data that the job does

opaque ledge Aug 2, 2020, 9:02 PM

#

so what happens if you comment out Q.Enqueue ?

hollow jolt Aug 2, 2020, 9:03 PM

#

when

#

the 2nd line ?

#

after it has been declared *

opaque ledge Aug 2, 2020, 9:03 PM

#

yeah

#

"Q.Enqueue ( new Point { x = x, y = y , d = FillDir.Start } );" this line

hollow jolt Aug 2, 2020, 9:03 PM

#

it will not enter the while loop

opaque ledge Aug 2, 2020, 9:03 PM

#

yeah but does it output any errors ?

hollow jolt Aug 2, 2020, 9:04 PM

#

D:\UnityGitMy\__project__\Library\PackageCache\com.unity.collections@0.9.0-preview.6\Unity.Collections\NativeQueue.cs(96,17): Burst error BC1042: The managed class type `Unity.Collections.NativeQueueBlockPoolData*` is not supported. Loading from a non-readonly static field `Unity.Collections.NativeQueueBlockPool.pData` is not supported

#

dang

#

ill try downgrade burst

opaque ledge Aug 2, 2020, 9:05 PM

#

well i actually never done anything with native queues, but could be a package problem with burst or collections

#

in 0.9 patch notes it says "Updated package com.unity.burst to version 1.3.0-preview.11"

#

perhaps try that burst version ?

hollow jolt Aug 2, 2020, 9:06 PM

#

i am using 1.3.3

#

oh ok

opaque ledge Aug 2, 2020, 9:06 PM

#

ah saw this

#

https://forum.unity.com/threads/nativequeue-and-burst.799116/

Unity Forum

NativeQueue and Burst

Does Burst not work with NativeQueue?...

#

apperantly, nativequeue being created inside the job is not supported

hollow jolt Aug 2, 2020, 9:07 PM

#

hmmmm

opaque ledge Aug 2, 2020, 9:07 PM

#

perhaps create one outside of the job and send it to job emtpy ?

hollow jolt Aug 2, 2020, 9:08 PM

#

lol that's relatively easy

#

ill try that

opaque ledge Aug 2, 2020, 9:09 PM

#

alright let me know if it works so i can go to sleep 😄

hollow jolt Aug 2, 2020, 9:12 PM

#

lol ok 1 sec

#

hmmm i see no errors

#

i think it works ... ? can't say for sure but thanks so far ill figure out why its showing no changes compared to the coroutine method

opaque ledge Aug 2, 2020, 9:15 PM

#

haha alright^^

hollow jolt Aug 2, 2020, 9:16 PM

#

have a good one

tardy spoke Aug 2, 2020, 9:52 PM

#

Hmm now that I've done the continuous floating origin test, I'd like to try it the "tile based" way, where instead of the level moving around the player continuously, the origin "resets" at when you cross into another "tile" - which in this case would be a subscene. I feel that this approach will actually likely end up being simpler even though the mechanism of how it keeps the player near the origin is initially more complicated.

I have concerns about splitting the rendering and physics meshes like how I did on my first test will compound in complexity as more systems/functionality is added. It also seems unnecessarily mentally fatiguing to always be considering how the visuals don't actually line up with the physics representations, and how to program systems with that in consideration.

Also, question - does DOTS physics handle "static" stuff in the same way the older physics system did, where it actually optimizes physics calculations some way for those entities it knows will never move? Or is a collider simply a collider as far as it's concerned?

minor sluice Aug 2, 2020, 10:02 PM

#

afaik, it is similar to the old physics system,
like static colliders won't be checked against other static colliders

tardy spoke Aug 2, 2020, 10:05 PM

#

@minor sluice can they be "moved" now, per chance? Haha 🙂

#

Because that would solve a looooot of issues for me

#

Moving 10,000 physics objects that are not checked against eachother can probably be done in under a frame without interrupting the player experience, I thiiiiiink.

10,000 physics objects that have to recalculate all their physics interactions I think might cause the game to pause for a second when moving the entire level and player.

#

I guess i'll find out. Worse comes to worst I'll just put a "loading" screen or something for the half second or whatever it takes to calculate and move the level / player.

minor sluice Aug 2, 2020, 10:12 PM

#

taking a look into "BuildPhysicsWorld", there seems to be a check between the current and previous number of static bodies, among other things and this comment:

// Determine if the static bodies have changed in any way that will require the static broadphase tree to be rebuilt

so I assume that the world is rebuild on demand and there is also a job to check if existing bodies changed

#

so probably means there is quite a bit of optimization in ecs physics too for keeping static collider world layout

tardy spoke Aug 2, 2020, 10:13 PM

#

Hmm, yeah that sounds as if the relationships are kept the same it's smart about it

minor sluice Aug 2, 2020, 10:14 PM

#

but if it is similar to physx, apparently there was a time where moving static colliders was expensive, but not anymore

tardy spoke Aug 2, 2020, 10:14 PM

#

I thought if you moved a static collider it would glitch out and give you an error?

#

without DOTS

hollow sorrel Aug 2, 2020, 10:15 PM

#

i imagine it'll be fine but if you find it's not you could overengineer the fuck out of it and split every tile into a seperate physicsworld

tardy spoke Aug 2, 2020, 10:15 PM

#

Is there no physics optimizations between subscenes that is somewhat similar to that?

#

I doubt they use physicsworlds since that would interrupt physics calcs that cross between subscenes

minor sluice Aug 2, 2020, 10:16 PM

#

because for a while there was the advice to not move static bodies and use rigidbodies for objects that you move, but I think I once found that it is cheaper to move a whole bunch of static objects than it is to move the same number of kinematic rigidbodies

tardy spoke Aug 2, 2020, 10:16 PM

#

but surely it's only performing physics calcs on loaded subscenes only, and that oughta do?

hollow sorrel Aug 2, 2020, 10:16 PM

#

subscenes just dump everything into your default conversion world

minor sluice Aug 2, 2020, 10:16 PM

#

no, it doesn't matter, fortunately unity and the other engines usually do are pretty forgiving there

#

I always only use static colliders if i don't strictly need interactions between those 2

#

like a game that has plenty of enemies, but they only need a collision against a bullet, I might only give the bullets a rigidbody

tardy spoke Aug 2, 2020, 10:18 PM

#

it's nice to have that ability to create the smaller physics worlds if necessary.

I wonder if it's possible to just tag everything that's more than say 200 feet from the player with "ExcludePhysics" if that would help

#

Depending on how they handle that, you would re-initializing the physics interactions between objects "over time" as you move around the world... if that's how it works.

minor sluice Aug 2, 2020, 10:20 PM

#

in regular physics, I think there is a setting when the physics world is recalculated, by default that only happens in the fixed update state,
maybe before that happened when you move a static collider too perhaps, and that is why it wasn't as performant?

the only downside with the cheaper approach is that you might move an object and then raycast against a world state where the movement wasn't applied to the world yet (not sure if unity performs the recalculations here if the raycasts are triggered too, I don't think so)

#

I think I'd just try and see what the profiler says about it, or if it is an issue ^^

zinc plinth Aug 2, 2020, 10:21 PM

#

streaming ecs dev again acegikSparkles

hollow sorrel Aug 2, 2020, 10:22 PM

#

yea the seperate physicsworlds is just my mind wandering off not an actual suggestion, i'd prob do that if it was multiplayer because then you can't simply origin shift but other than that the other way is prob better

tardy spoke Aug 2, 2020, 10:22 PM

#

Well, eventually it will be multiplayer, not sure why you can't origin shift in multiplayer?

hollow sorrel Aug 2, 2020, 10:22 PM

#

oh in that case

#

because the server needs to calc everything at the same time right

#

for players that are at both opposite ends of the world

minor sluice Aug 2, 2020, 10:23 PM

#

origin shift only works if there is one player, or a few players around the same spot

tardy spoke Aug 2, 2020, 10:23 PM

#

You would need a layer that converts the player's "real world locations" (non origin shifted) to the relative locations for all the players

#

I dunno if that's possible, but that's what I figured the approach would be ^

#

So you're saying the one big physics world would be too big for the server to handle/compute?

#

I figured the server would load a copy of the world, spawn enemies in it and then translate the locations of those enemies to appear to player's relative locations based on the player's "real world location". Same thing with other players, etc.

minor sluice Aug 2, 2020, 10:25 PM

#

you could probably use some relative coordinates of a shift for certain areas of objects you expect to interact and then reapply those results back to the actual world, no idea how this is usually handled though

hollow sorrel Aug 2, 2020, 10:25 PM

#

you can but as long as they're part of the same simulation their relative locations is still going to have precision issues
like if one player is at pos 0 on tile 0,1 and the other at 0,5 then you can't just set both their physics position to 0 because they'd overlap right

#

so they'd still have to be 500000m apart

#

unless you seperate your simulation into multiple tiles

minor sluice Aug 2, 2020, 10:26 PM

#

the issue with the all enemies relative to each player approach is that it could get expensive the more players there are I assume

tardy spoke Aug 2, 2020, 10:26 PM

#

Oh, I figured the server was doing the calculations based on their "real world positions" in the real world.

For me, the origin shifting is basically solely for to fix the display jitter issues, the physics inaccuracies up to a half inch or whatnot are really not a primary concern of mine... that is until they start causing some real issues and stuff, hahah.

minor sluice Aug 2, 2020, 10:27 PM

#

if you have to relativate all close positions per player, but maybe you could just take each of the colliders that could realistically collide for a player and then do a local simujlation

tardy spoke Aug 2, 2020, 10:27 PM

#

@minor sluice yeah that's actually a good point because you potentially have an exponential calculation there that could quickly get out of control

hollow sorrel Aug 2, 2020, 10:27 PM

#

i think even if i didn't care about physics jitter (i do) i still would do the tile based approach in mp

tardy spoke Aug 2, 2020, 10:28 PM

#

Yeah, you could do a "local" physics calculation and have the server just verify the calculation is within reason/realistic

hollow sorrel Aug 2, 2020, 10:28 PM

#

actually a recent post from joachim about this same issue here https://forum.unity.com/threads/64bit-precision.939026/

minor sluice Aug 2, 2020, 10:29 PM

#

oh, I know this person, he is also trying to develop and open world multiplayer game with large map

#

also great to see joachim giving input on those topics

tardy spoke Aug 2, 2020, 10:30 PM

#

@minor sluice I was planning on a having the server "foreach" each player and only show enemies near them, and ignore calcs on all enemies wandering the world that can't be seen/are not near, but yeah, I do wonder about the scalability of that regardless, haha.

#

I wonder if that's enough or if you'd still run into issues with that calculation becoming too massive.

#

If you want to run a simulation over 100*100km with a reasonable simulation density, you need to go with a MMO style simulation approach at that scale for the server. This means splitting the world into tiles and doing simulation only in one tile and having neighboring tiles loaded as read only data. Most likely scaling the simulation across multiple machines.

Lol wow that sounds complex

minor sluice Aug 2, 2020, 10:32 PM

#

since the new packages basically have the source available in the package cache, I wonder if someone will "just" reimplement the current physics solution with doubles instead of floats.

probably needs a try, here the expensive thing might be the range checks around each player, would be easier to just have a tiled world and take all entities that are in the same or maybe also adjacent tiles, then it might not be that expensive

tardy spoke Aug 2, 2020, 10:32 PM

#

luckily my map is only 20km squared and I could make it smaller if necessary

minor sluice Aug 2, 2020, 10:32 PM

#

but again, never made a game world on that scale

hollow sorrel Aug 2, 2020, 10:32 PM

#

btw you mentioned you didn't notice physics jitter if you only shifted rendering

#

you're making a vr game right?

#

might notice physics jitter with motion controls

#

i would imagine

tardy spoke Aug 2, 2020, 10:33 PM

#

Yeah, you totally could get some weird interactions for sure at the edges of the worlds picking up objects like guns and stuff.

#

I don't think there's any "free lunch" here. I think something is going to have to be sacrificed to make it "work". I've considered even having it so you can't actually pick up objects at all and there are no true physics objects in the world, just ones you select from an inventory that are calculated with your local physics.

I'm trying to find a simple approach that will work, rather than a "perfect approach", because sheer size of the project is already immense anyway and I'd rather have something that is playable and fun to work on than some technical marvel that is just overwhelmingly complicated and never gets anywhere near finished.

hollow sorrel Aug 2, 2020, 10:40 PM

#

yea that's fair

tardy spoke Aug 2, 2020, 10:40 PM

#

I have a feeling getting the XR interaction toolkit to work with entities may also be interesting... haha. There's all these unknowns on a project this size.

hollow sorrel Aug 2, 2020, 10:41 PM

#

wouldn't consider mp in that case hahah but up to you

tardy spoke Aug 2, 2020, 10:41 PM

#

mp?

hollow sorrel Aug 2, 2020, 10:41 PM

#

multiplayer

tardy spoke Aug 2, 2020, 10:42 PM

#

Oh, yeah - haha. It's a learning project and I've always been interested in that aspect. Yeah, definitely increases difficulty a ton.

#

For the tile origin based shifting system, not sure if anyone is familiar, but at what exact point would you have it shift the origin? as soon as they cross from one sub-scene into the next? Or possibly fairly continuously, like every 10 seconds whether you've moved anywhere or not - though I'm pretty sure that's not how it's usually done.

#

Actually I wonder if you could just do the CFO (continuous floating origin) method with subscenes but without splitting the display/physics world apart since you're only loading a part of the world at a time... hmm. That may actually be the "easiest".

hollow sorrel Aug 2, 2020, 10:46 PM

#

if i remember right you have sub-cm precision until like 10km distance right
so you shouldn't have to shift that often, doing it when crossing subscene/tile sounds fine

tardy spoke Aug 2, 2020, 10:47 PM

#

Yeah, it would definitely be fine.

#

I'll do the CFO experiment with the subscenes first and see how that works, because I already have most the scripting done for that experiment anyway. Then if that has issues I'll try the tile one to see how that goes.

hollow sorrel Aug 2, 2020, 10:48 PM

#

CFO as in moving the world around the player?

tardy spoke Aug 2, 2020, 10:48 PM

#

Yea

#

Why? Do you see an immediate issue? Hahah

hollow sorrel Aug 2, 2020, 10:50 PM

#

just that it would cost more performance

tardy spoke Aug 2, 2020, 10:50 PM

#

Oh, yeah, true

#

Yeah, you're right, and on mobile too (target platform is Oculus Quest, which has the power of a google pixel 2 phone)... hmm... that is a lot of wasted performance

craggy orbit Aug 3, 2020, 3:03 AM

#

i can't find very much on .Schedule() vs .ScheduleParallel(), but im guessing that Parallel schedules jobs across multiple threads. am i correct in this assumption?

tardy spoke Aug 3, 2020, 3:10 AM

#

@craggy orbit I believe so. I think .Schedule() also will schedule across multiple threads if it "decides" that's the most efficient approach, but don't quote me on that.

#

What is up with these generated bounding boxes on subscenes?? Haha. Can't seem to fix them and they just get mangled.

📎 Screen_Shot_2020-08-02_at_9.09.23_PM.png

zinc plinth Aug 3, 2020, 3:17 AM

#

@tardy spoke no schedule is 1 thread only

#

that's the point of IJobParallelFor, multithreading a job

#

not every job can be split in bits

tardy spoke Aug 3, 2020, 3:21 AM

#

Ah, right, so schedule is just "run" but not immediate then - gotcha. Makes sense.

zinc plinth Aug 3, 2020, 3:22 AM

#

run is to run on main thread

#

schedule is job workers

tardy spoke Aug 3, 2020, 3:22 AM

#

Ahhh, okay, I gotcha. Haha. Good to know.

craggy orbit Aug 3, 2020, 3:35 AM

#

thanks for the clarification, you two. seems i should be using ScheduleParallel when possible then 🙂 thanks!

tardy spoke Aug 3, 2020, 3:46 AM

#

Hmm. Ideas for how to calculate from the player to the closest pound on a SubScenes' bounding box? I have a math.distance but it's currently calculating the distance to the centre of the subscene, I believe. The subscene's bounding box is also in a min/max format.

I figure I could use that min/max and make a plane, and then figure out the closest point from that plane to the character. Or just treat the "sides" of the plane as four seperate lines and do some math to calculate the closest point on each and just use the smallest result.

craggy orbit Aug 3, 2020, 3:51 AM

#

should physics be taking up 4.5 ms to force complete the ParallelCreateContactsJob and ParallelBuildJacobiansJob jobs every frame with only 1200 entities? i feel like it used to be more performant

#

@tardy spoke you should be able to clamp the player's position within the min/max of the subscene bounds, similar to this
https://gdbooks.gitbooks.io/3dcollisions/content/Chapter1/closest_point_aabb.html

#

this only works if the player is outside of the bounds though, as far as i can tell

deft stump Aug 3, 2020, 5:23 AM

#

@craggy orbit
schedparallel schedules jobs across multiple threads if you're working on entities across multiple chunks
1 chunk = 1 job.
sched will only work on 1 thread even if you're working on entities across multiple chunks

hollow jolt Aug 3, 2020, 6:26 AM

#

how can we pass data outside a job system ?

#

[ // Inside IJob struct :: Execute method // ]
{
  ...
  // last line of function
  Debug.Log("Out Count = " + outCount ); /// valid value something like 203986
}

[ // Outside Job // ]
JobHandle jobHandle = meJob.Schedule();
Debug.Log("1. C=" + meJob.outCount ); /// 0 -- data is lost ?
jobHandle.Complete();
Debug.Log("2. C=" + meJob.outCount ); /// 0

hollow jolt Aug 3, 2020, 9:04 AM

#

ok i figured it out , the main thread holds a copy of the IJob item , i used a results int native array to read & write data

amber flicker Aug 3, 2020, 10:35 AM

#

Anyone know if it's possible to run a system before monobehaviour Start()? (but after a subscene's entities exist)

#

I've managed it by manually calling update if the system hasn't yet run but I'd like to know if there's a better system group to run it in or something

hollow jolt Aug 3, 2020, 12:37 PM

#

@amber flicker iirc usually Awake executes first inside monobehaviour then OnEnable then Start , if u want monobehaviour independent execution look at RuntimeInitializeOnLoadMethodAttribute : https://docs.unity3d.com/ScriptReference/RuntimeInitializeOnLoadMethodAttribute.html
it has the following load method types :

AfterSceneLoad - After Scene is loaded.
BeforeSceneLoad - Before Scene is loaded.
AfterAssembliesLoaded - Callback when all assemblies are loaded and preloaded assets are initialized.
BeforeSplashScreen - Immediately before the splash screen is shown.
SubsystemRegistration - Callback used for registration of subsystems

amber flicker Aug 3, 2020, 12:43 PM

#

Thanks @hollow jolt but those are for static methods and not related to systems & ComponentSystemGroups. I think the lazy init I have now is fine but I think I would like to better understand the execution order wrt Awake, Start, InitializationSystemGroup, SimulationSystemGroup and for each of those when entities from a subscene 'exist' or are loaded

tardy spoke Aug 3, 2020, 2:18 PM

#

@craggy orbit yeah I think that method would work totally fine for what I'm doing. One problem I seem to have discovered though is subscenes seem to always originate at 0,0,0, including their bounding box. Yikes.

In the code monkey video he just uses the subscene object's position to load each one and moves it to the middle of the subscene, but as he mentions, that's not a great practice and the Unity editor even pops up with a warning when you move a subscene's origin away from 0,0,0.

I'm thinking there's gotta be a simpler way. Plus for myself, checking distance to the subscene's outer bounds vs an arbitrary point in the middle is likely a better more flexible solution. 🤔

📎 Screen_Shot_2020-08-03_at_8.09.21_AM.png

#

📎 Screen_Shot_2020-08-03_at_8.10.00_AM.png

#

I wonder if components can be added to Subscenes, like if I could just add a WorldRenderBounds or something to it somehow.

hollow sorrel Aug 3, 2020, 2:22 PM

#

@tardy spoke why not just move every object by origin offset after loading the subscene

tardy spoke Aug 3, 2020, 2:22 PM

#

The objects are in the right places, just the bounds of the subscene are forced to originate at 0,0,0 regardless of where the objects are.

hollow sorrel Aug 3, 2020, 2:22 PM

#

ah

#

didn't know subscenes have a bounds

tardy spoke Aug 3, 2020, 2:23 PM

#

It would make sense to me from a utilitarian point of view to have a worldrenderbounds type component on them because you know the majority of people are going to use them for streaming type loading... not sure what solution they're expecting to be used for that.

mint iron Aug 3, 2020, 2:45 PM

#

i'd think you'd want everything in the subscene to be relative to the subscene, and a layer that translates into world space. Then you can move the subscene anywhere you want, because the world positions are dynamically calculated.

tardy spoke Aug 3, 2020, 2:51 PM

#

@mint iron I agree, but I'm not sure how I would go about implementing that. Subscenes can't be "moved", they only seem to maintain a position from 0,0,0 it seems.

mint iron Aug 3, 2020, 2:52 PM

#

It is weird that there isn't a built in system for that, what is the SceneBoundingVolume used for?

tardy spoke Aug 3, 2020, 2:54 PM

#

Totally. I'm not sure what it's used for, haha.

mint iron Aug 3, 2020, 2:54 PM

#

i wonder about a couple things, is it dynamically calculated based on the contents of the subscene? what happens if something is in the subscene and outside this area?

tardy spoke Aug 3, 2020, 2:55 PM

#

It's based on the contents

#

It seems to work like you'd expect except always includes the origin point within it's boundaries

mint iron Aug 3, 2020, 2:55 PM

#

interesting

tardy spoke Aug 3, 2020, 2:59 PM

#

Ah, a lead. Noice.

📎 Screen_Shot_2020-08-03_at_8.59.03_AM.png

#

Hmm... wtf

📎 Screen_Shot_2020-08-03_at_9.13.04_AM.png

#

They're using it like how you would expect it to work. I wonder if it's a bug/glitch ?

dark cypress Aug 3, 2020, 4:26 PM

#

Is there a way to create a prefab without translation? I want to make some event entities and entities that don't need translation in any way and don't want the component there.

#

I know I can create an archetype programmatically, but I was hoping there's a way to do it with authoring.

amber flicker Aug 3, 2020, 4:39 PM

#

there will likely be a way to do it in the future - Topher (Unity) on here previously mentioned he thought it would be a good idea at any rate. In the meanwhile, either via code like you say or else modifying your entity prefab by removing Translation before instantiating them for events

dark cypress Aug 3, 2020, 4:42 PM

#

Cool. Good to know it's on the radar. I'm assuming there's virtually no performance impact if you have an unused translation component on a bunch of entities right?

amber flicker Aug 3, 2020, 4:43 PM

#

It depends on the scale but certainly, I'd be surprised if that ever became a practical bottleneck

#

that said, it will be updated by the transform system etc if you have many thousands around at one time so I would remove it from the entity prefab

dark cypress Aug 3, 2020, 4:46 PM

#

Understandable. Thank you.

safe lintel Aug 3, 2020, 6:08 PM

#

new animation package, 0.6.0p2

#

seems like it brings it in line with the most current entities and hybrid packages, though its further and further out of sync with the samples now 🧐

zinc plinth Aug 3, 2020, 6:38 PM

#

wasn't someone in here making a neat thing for dots animations with a good ui ?

safe lintel Aug 3, 2020, 6:52 PM

#

⬆️ Timboc

zinc plinth Aug 3, 2020, 7:02 PM

#

ha ye

last jasper Aug 3, 2020, 7:53 PM

#

Hello! Is this the place for tiny questions aswell?

#

Specifically, I was wondering if tiny's renderer supports any custom shaders yet, or material properties - in my particular case, to implement 'team colors' on some ship sprites, but the quesiton is more general

opaque ledge Aug 3, 2020, 8:29 PM

#

maybe somone knows the answer but i rarely see tiny stuff being discussed here, you should ask your question to tiny forum

#

you might get better/faster help

last jasper Aug 3, 2020, 10:20 PM

#

thanks CurlyOne

zinc plinth Aug 3, 2020, 10:32 PM

#

do you know which system adds the Child buffer to entities ?

#

nvm found it

#

(it's ParentSystem)

knotty delta Aug 4, 2020, 12:32 AM

#

How do i name Entities when i instantiate them? All my Entities are called Entity 1, Entity2,etc and it's confusing when debugging with the entity debugger.

hollow sorrel Aug 4, 2020, 12:34 AM

#

@knotty delta entitymanager.setname

knotty delta Aug 4, 2020, 12:35 AM

#

@hollow sorrel Thanks a lot!

ocean tundra Aug 4, 2020, 2:12 AM

#

@knotty delta make sure to wrap that call in a #IF UNITY_EDITOR

#

as it dosnt exist in build

zinc plinth Aug 4, 2020, 2:12 AM

#

Huuh good to know

#

Fuck

ocean tundra Aug 4, 2020, 2:13 AM

#

yea was annoying to discover

#

names are a editor only feature

zinc plinth Aug 4, 2020, 2:14 AM

#

I use names as field name for a codegen'ed struct containing entity prefab I_NotLike

#

Damnit

#

Giess I'll need a class ICD then --'

ocean tundra Aug 4, 2020, 2:15 AM

#

I am a version or 2 behind now

#

you can tell pretty quickly if you do a build

#

the compile will fail almost right away

spark glade Aug 4, 2020, 8:27 AM

#

seems like it brings it in line with the most current entities and hybrid packages, though its further and further out of sync with the samples now 🧐
@safe lintel no surprise here 😭

#

And still no mention of URP 👿

last jasper Aug 4, 2020, 8:39 AM

#

What's the issue with URP?

amber flicker Aug 4, 2020, 9:11 AM

#

Oh I think it's something like only supports 1 main light, no baking, light probes, issues with the batcher? etc etc

stone osprey Aug 4, 2020, 11:31 AM

#

So how exactly does the job system work ? We schedule a "piece" of code into a job which gets executed parallel on a different thread... right ? Is there a way to register a callback getting executed once the job finishes ?

tight blade Aug 4, 2020, 11:32 AM

#

@stone osprey its more like js promises. As long as you have a reference to the job, you can tell other async code to wait for that to finish, or you can have your synchronous code explicitly wait for that to finish before continuing.

#

the JobHandle API is what takes care of all of that

stone osprey Aug 4, 2020, 11:33 AM

#

Ah thanks ! 🙂

mystic mountain Aug 4, 2020, 1:31 PM

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Hmm, so I just came back from being away for a month and I updated some packages, it says I get error of The type or namespace name 'Scenes' does not exist in the namespace 'Unity'
But I can clearly see it when I check the packageCache, anyone bumped into something similar?

opaque ledge Aug 4, 2020, 1:41 PM

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i think it was moved to some different name space

mystic mountain Aug 4, 2020, 1:42 PM

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I see, it moved from hybrid assembly.

amber flicker Aug 4, 2020, 1:52 PM

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hhmmm anyone know if it's possible to e.g. search at edit-time for ICDs in a SubScene that's closed? Sounds unlikely doesn't it. I guess you'd need to somehow stage/open it when searching. Edit: seems if you open just like any other scene it works so will go with that.

granite spoke Aug 4, 2020, 2:37 PM

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Hey guys! I'm new to Unity's discord server. We are doing the pre-production of a game with DOTS. What could be helpful to share with everyone? Other than asking questions of course 🙂

amber flicker Aug 4, 2020, 2:41 PM

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Nice - what type of game and what's been the hardest problem so far?

tardy spoke Aug 4, 2020, 3:29 PM

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@granite spoke this is a list of resources I put together for myself of recent DOTS materials. Anything along these lines is definitely helpful - really, the most helpful thing is just having RECENT demonstrations of solving common gameplay stuff in DOTS. https://sites.google.com/site/unityecsresources/

It would be interesting to see for example implementations of questing systems, or just other gameplay systems in general. Realistically anything well instructed and recent is worth it's weight in gold, haha.

granite spoke Aug 4, 2020, 3:54 PM

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@amber flicker @tardy spoke It is a sandbox game with crafting as the main focus. You live in a world containing mines and people and stadiums which you can run shows in

So far we solved quests, inventories and general gameplay systems. about 3.5 weeks into pre-production

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I'll try to post relevant material soon here or as a blog on our site/gamasutra and post a link here

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it is truly a delight

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If you are looking for generic systems like OOP then you'll not find it but we have rules for solving quests which are pretty elegant if you get used to them. For example you have a Task component and it contains only task type and generic info (few fields) Then each task type (quest type) has its own special components (e.g. timeBasedTask, CounterTask) and each of these have a separate system which checks for entities with Task, [TaskSpecificComponent] and ActiveTask component and keep track of the task's progress. we also keep data regarding what is going on in the world in separate NativeArrays which keep track of the show's stats in the stadium for the tasks.

Will write as a post soon

deft stump Aug 4, 2020, 4:00 PM

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So that results in plenty of systems... huh

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for curiosity's sake, how many systems do you have right now?

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~~because my system's folder is getting bigger and bigger~~

tardy spoke Aug 4, 2020, 4:08 PM

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@granite spoke Would definitely be interested in seeing that quest system for sure. I believe there is no tutorial or tech demo of a quest/task system for ECS to date on YouTube, so might be a good opportunity for some exposure for your company.

stone osprey Aug 4, 2020, 4:16 PM

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Does it make sense to chain jobs ? For example Job 2 should get executed after Job 1 ? This way we could reduce load on the main thread but its still not getting executed parallel

zinc plinth Aug 4, 2020, 4:18 PM

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some jobs can require the result of a previous job, so yea it makes sense to chain them

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if you shedule 2 jobs they get added to the dependency one after the other by default anyway

stone osprey Aug 4, 2020, 4:24 PM

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@zinc plinth Thanks ! But how do we actually pass data from the first job into the second one ? ^^

zinc plinth Aug 4, 2020, 4:25 PM

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pass your native array from the first struct to the next

tardy spoke Aug 4, 2020, 5:14 PM

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Hmm, anyone know how to use ECB with subscene loading?

📎 Screen_Shot_2020-08-04_at_11.13.59_AM.png

safe lintel Aug 4, 2020, 5:57 PM

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@granite spoke are you using the animation package for this? or how are you handling animation?

tardy spoke Aug 4, 2020, 6:16 PM

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https://youtu.be/F7JOH3r3-vA Lol, I made this video and I was going to ask if anyone knows how to solve this strange issue. Upgrading entities from 0.11 to 0.13 fixed it ... too bad entities 0.13 doesn't run when I build it to VR, hahaha. DOTS life yo. 🤦‍♂️

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@safe lintel @last jasper 's project is here under "other" at the bottom of the google sheet now.

https://sites.google.com/site/unityecsresources/

safe lintel Aug 4, 2020, 6:54 PM

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wait he mentioned its a crafting game, but the link is a top down shooter?

tardy spoke Aug 4, 2020, 6:55 PM

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oh sorry

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wrong name

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Corrected now. Got the two projects mixed up.

safe lintel Aug 4, 2020, 7:05 PM

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ahh an ecs dungeonkeeper project 😍

tardy spoke Aug 4, 2020, 7:05 PM

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Haha it's so dope, but the dude is mad skillz

tight blade Aug 4, 2020, 7:49 PM

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anyone know how to inspect the order of conversion systems?

tardy spoke Aug 4, 2020, 7:51 PM

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😐

📎 Screen_Shot_2020-08-04_at_1.50.18_PM.png

zinc plinth Aug 4, 2020, 8:01 PM

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if you create a system mid frame and the new system is placed after the one currently running, will it Update within the frame ?

edit: streaming again

tardy spoke Aug 4, 2020, 8:10 PM

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Weird, won't build because it says code is wrong, but runs fine in Unity and doesn't show an error on the linter

📎 Screen_Shot_2020-08-04_at_2.09.33_PM.png

rancid geode Aug 4, 2020, 8:12 PM

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maybe SceneName is Editor-only thing?

tardy spoke Aug 4, 2020, 8:12 PM

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Oh, that's probably right

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Damn I was only using those for some debug.logs haha

opaque ledge Aug 4, 2020, 8:30 PM

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oh man, Dungeon Keeper 2 was my first pc game 😄

safe lintel Aug 4, 2020, 8:44 PM

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rip bullfrog

tardy spoke Aug 4, 2020, 8:48 PM

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bullfrog was awesome. Syndicate and theme hospital and stuff.

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... that should work, right? 🤔

📎 Screen_Shot_2020-08-04_at_2.50.35_PM.png

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📎 Screen_Shot_2020-08-04_at_2.50.08_PM.png

opaque ledge Aug 4, 2020, 8:55 PM

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never did subscenes \o/

tardy spoke Aug 4, 2020, 8:56 PM

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If you ever do, here's a handy trick for subscenes. If something isn't working, restart Unity and 90% of the time it will start working.

coarse turtle Aug 4, 2020, 8:56 PM

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sounds like my initial experience w/ subscenes

amber flicker Aug 4, 2020, 8:59 PM

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Yesterday I finally found one subtle thing about subscenes that I feel happier about now it’s explicit in my understanding. In case it helps anyone else - I think entities from a converted subscene are present on the first frame only if the subscene is open - otherwise they don’t exist until the second frame. 😬

tardy spoke Aug 4, 2020, 8:59 PM

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Hmm. This works.

📎 Screen_Shot_2020-08-04_at_2.59.07_PM.png

amber flicker Aug 4, 2020, 9:00 PM

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So if you did something like eg cache a reference to an entity on start it may work with the subscene open but not closed.

tardy spoke Aug 4, 2020, 9:03 PM

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like open in the editor, right?

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Not active/inactive?

amber flicker Aug 4, 2020, 9:03 PM

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Correct

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They ‘load’ after the other gameobjects in the scene.. I understand using MB’s isn’t the ideal workflow but honestly I think they should have them loaded in by awake like everything else in the scene. I posted on the forums about it 🤓 (https://forum.unity.com/threads/subscene-timings.944961/)

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But I don’t expect it to change

tardy spoke Aug 4, 2020, 9:07 PM

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MBs?

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ah, monobehaviours, right

amber flicker Aug 4, 2020, 9:07 PM

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Ah sorry yup

tardy spoke Aug 4, 2020, 9:08 PM

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Yeah, I'd like to learn about initialization orders and stuff because the majority of my issues stem from that

tight blade Aug 4, 2020, 9:16 PM

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oh man. if anyone finds any good resources regarding that, definitely circulate them here

dark cypress Aug 4, 2020, 10:04 PM

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Where can I find some examples of procedural meshes in ECS?

tardy spoke Aug 4, 2020, 11:12 PM

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Hmm, any way to do MathF approximately but with the ECS math library?

rancid geode Aug 4, 2020, 11:25 PM

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        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static bool Approximately(float a, float b)
        {
            return math.abs(b - a) < (double)math.max(1E-06f * math.max(math.abs(a), math.abs(b)), math.FLT_MIN_NORMAL * 8f);
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static bool Approximately(double a, double b)
        {
            return math.abs(b - a) < math.max(1E-06 * math.max(math.abs(a), math.abs(b)), math.DBL_MIN_NORMAL * 8);
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static bool Approximately(float a, float b, float tolerance)
        {
            return math.abs(a - b) <= tolerance;
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static bool Approximately(double a, double b, double tolerance)
        {
            return math.abs(a - b) <= tolerance;
        }

those are some I have been using myself

tardy spoke Aug 5, 2020, 12:03 AM

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Awesome, thanks 😄

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@amber flicker I can tell you there are some interesting challenges caused by moving the entire level occasionally since subscenes are loaded async, haha. There's a flag to disable async loading i'll experiment with but that's probably not a great idea.

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Trick is you can't seem to access "inside" a scene to move a root object if the scene is closed... I don't think?

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(You also can't just move the translation of a scene itself, pretty sure).

granite spoke Aug 5, 2020, 5:40 AM

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@tardy spoke we have about 50 at the moment and yes i expect a DOTS based game to have 1000 to 2000 systems at the end if it is not too big.

@safe lintel Not yet. For now we are not doing animations but when we come out of pre-production that package should be ready. We are using cinemachine in the main thread and also old uGUI and not UI Toolkit (a.k.a UI Elements) for now.

What we need to be able to ship is a deferred renderer for URP since we have lots of lights for our show system and balls in stadiums and also animation package but having cinemachine and UI Toolkit for ECS can help as well. otherwise we have everything that we need for the moment. Of course later on if we want to add multiplayer we will need more ready NetCode but since I'm a multiplayer developer, I'm just trying to keep systems multiplayer ready for now and can deal with that later on. At worst we need to use the transport layer and write our own high level stuff which is not good for our budget but it is in my set of skills so i don't worry on that too much.

The game couldn't be done without ECS due to the number of balls and crafted cars and aircrafts in the world at the same time

amber flicker Aug 5, 2020, 10:53 AM

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cc @tardy spoke just fyi https://forum.unity.com/threads/case-1268172-burst-does-not-work-on-android-device.945509/

dark cypress Aug 5, 2020, 1:23 PM

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Unity is telling that to not convert GOs to entities at runtime I need to put them in a subscene. Can I do that with prefabs, or is that for scene objects only?

mint iron Aug 5, 2020, 1:49 PM

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you should be able to have a prefab in a subscene convert properly

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interesting though on the runtime warning, we had been told by topher quite a while ago that conversion outside of a subscene is not going to be supported, makes sense they're now warning people about it.

amber flicker Aug 5, 2020, 1:51 PM

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you can create a single 'Prefab' subscene and put all your prefabs in there but I hope in the future there is some kind of pure prefab equivalent

opaque ledge Aug 5, 2020, 2:09 PM

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https://forum.unity.com/threads/dots-visual-scripting-experimental-drop-11.944793/

Unity Forum

DOTS Visual Scripting Experimental Drop 11

Hi all,

My name is Laurent, I am jumping in this time around to publish this post about the latest drop of DOTS Visual Scripting. You may have seen me...

tight blade Aug 5, 2020, 2:16 PM

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Man, this is a real bummer. Ive been operating on PhysicsVelocity this whole time naively hoping it was as simple as that. But no, it turns out that an Entity's actual physics data is in a MotionVelocity and MotionData struct owned by the world and not in a component.

tight blade Aug 5, 2020, 2:32 PM

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no chance anyone here knows of a way to update motion data directly, is there?

deft stump Aug 5, 2020, 3:15 PM

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📎 unknown.png

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goddammit unity

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XD

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37 minutes and 14 seconds!

mint iron Aug 5, 2020, 3:15 PM

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i tend to kill the process at 1 minute, but my projects are small

deft stump Aug 5, 2020, 3:26 PM

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well I'm killing it

hollow sorrel Aug 5, 2020, 4:07 PM

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@tight blade what's your issue with using PhysicsVelocity directly? 90% of the time this comes up it's a scheduling order issue but i don't wanna assume

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it's true that the 'actual' motion data is owned by physicsworld but you won't need to touch this 90% of the time

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think of ECS like an interface layer
ecs components get converted into physicsworld, physicsworld does a step on its internal data, physicsworld converts internal data back to ecs components

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afaik this is mainly so that you can just drop in Havok for the physics step part and still use the exact same ecs components as you would with Unity Physics (not-havok)

tardy spoke Aug 5, 2020, 4:30 PM

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@tight blade what behaviour are you trying to achieve by affecting the physics stuff directly?

tight blade Aug 5, 2020, 4:33 PM

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Sorry shopping! One sec!

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Effectively, I want to only allow something to roll in one direction, and I want it to roll in that direction with no inertia acting against its rotation

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If you set inertia to its lowest effective value at 1E-10F, cancelling angular velocity in a particular direction will have no effect. The ball will still rotate, even with an angular velocity of 0

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Regardless of when you run the system that zeroes out the angular velocity

tardy spoke Aug 5, 2020, 4:38 PM

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Hmm, dunno if this will help any or give any ideas

📎 Screen_Shot_2020-08-05_at_10.37.42_AM.png

tight blade Aug 5, 2020, 4:39 PM

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Yeah, not really, because I need the inertia in one direction, but not the other

tardy spoke Aug 5, 2020, 4:39 PM

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Hmm, yeah, I could see that being tricky

tight blade Aug 5, 2020, 4:39 PM

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So the idea was to just set inertia to 0 in both directions and cancel the velocity in one direction

warped trail Aug 5, 2020, 4:39 PM

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reset angular velocity after simulation?

tight blade Aug 5, 2020, 4:40 PM

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Doesnt work. The rotation has already been resolved from the collision.

warped trail Aug 5, 2020, 4:40 PM

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and roll back

tight blade Aug 5, 2020, 4:40 PM

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Rolling it back doesnt help because the thing its attached to has already been pulled by its rolling along the ground

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The actual rotation doesnt matter, it's the rotational movement and its effect on connected entities that needs to be prevented

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Preventing angular velocity doesnt work because the contact with the ground transfers the impact * inverse inertia calculation directly into the motion data

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Which is then subsequently transferred into the angular velocity as a way to preserve it for the next frame

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But cancelling the angular velocity does not prevent the motion data already calculated for that frame from applying movement to the system

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Basically I'm trying to intercept the momentum, not the velocity

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And that's not accessible, which is reasonable.

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I'll figure something out.

tardy spoke Aug 5, 2020, 4:46 PM

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It'll be interesting to see what your solution is and how hard it is to implement

tight blade Aug 5, 2020, 4:46 PM

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To test this by the way, have a sphere with inertia set to 1E-10F on all axes and then attach a system which sets its angular velocity to 0 every frame. Then drop it on an incline

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You'll see it roll downhill

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Even though angular velocity is 0

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And it wont matter when you set the system to run

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And the reason I'm doing this, by the way, is to have friction that only applies in one direction. When the wheel locks up and isnt allowed to move, the ball skids and applies friction to the system. When the ball rolls, friction isnt applied, like when you're on rollerblades. If you move laterally, the friction from the wheels makes you skid. If you move in line, the wheels roll

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So, the idea here is that I want roller blades that dont roll backwards. Only forwards.

tardy spoke Aug 5, 2020, 4:53 PM

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Interesting. I wonder if Havok has any abilities or anything around that

tight blade Aug 5, 2020, 5:00 PM

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That's an interesting thought. I should probably try it anyway, if for no other reason than to see how deeply locked into the Unity Physics implementation I've gotten myself 😅

tight blade Aug 5, 2020, 7:47 PM

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I think the biggest issue is that one doesn't get access in PhysicsVelocity to the immediate result of collision

acoustic spire Aug 6, 2020, 12:11 AM

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I'm procedurally generating mesh and it ignores directional lighting. The cylinder is classic GameObject and it has same material. What can be the problem?

📎 unknown.png

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Component data is set here:

   entityManager.SetSharedComponentData(entity, new RenderMesh
   {
       mesh = mesh, // vertices & indices only
       material = atlasMaterial // basic diffuse atm
   });

zinc plinth Aug 6, 2020, 12:28 AM

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https://i.imgur.com/zggErSl.png @acoustic spire

Imgur

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read the code of what you're using, the fact that all entities code is OS is amazing and should be taken advantage of

acoustic spire Aug 6, 2020, 12:32 AM

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adding it didnt help though

zinc plinth Aug 6, 2020, 12:33 AM

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create a debug shader and check your normals

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and/or your uvs

acoustic spire Aug 6, 2020, 12:49 AM

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yep, I forgot about vertex normals

half jay Aug 6, 2020, 8:07 AM

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After upgrade project from 2019.3 to 2020.1 and launch it on Android getting error

📎 unknown.png

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Busrt 1.3.3, Entities 0.13.0. Using all last version of depending packages

finite breach Aug 6, 2020, 10:00 AM

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What function does !HasComponent<LocalToWorld>(target.entity) inside a Entity.ForEach use internally? Is it better to use ComponentDataFromEntity and WithReadOnly?

amber flicker Aug 6, 2020, 10:22 AM

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@finite breach that is what it compiles to (XXXComponent = CDFE) - they're equivalent I believe 👍

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if it's in the hot path and you're testing for the presence of a component, you may want to consider IJobChunk or similar

finite breach Aug 6, 2020, 10:38 AM

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@amber flicker Thanks! I found the old forum thread again too. Fetching ComponentDataFromEntity before the ForEach is slightly faster. But as always with DOTS, the gain is probably negligible if running it on a very small number of entities.

amber flicker Aug 6, 2020, 10:40 AM

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hmmm I wouldn't expect a difference in speed in a built with safety checks off if they're both checking inside the loop

finite breach Aug 6, 2020, 10:44 AM

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@amber flicker The difference, I believe, is HasComponent, would trigger the ComponentDataFromEntity() call on every ForEach, whilst assigning ComponentDataFromEntity to a variable before the ForEach would result in 1 ComponentDataFromEntity() call.

zinc plinth Aug 6, 2020, 10:44 AM

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urggg, I thought Mesh was a struct and was like Awesome I can throw my mesh combining in jobs

but turns out that nope, it's a damn class --'
so I either have to copy every damn field and somehow do the combining myself, or just give up on jobs..

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it sucks

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one good thing I guess is that this is big SIMD potential then if I do it manually

amber flicker Aug 6, 2020, 10:46 AM

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@finite breach oh really? did you check out the compiled code? A bit surprised if it doesn't compile down to the same thing but good to be aware of.

finite breach Aug 6, 2020, 10:48 AM

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@amber flicker I didn't go into the compiled code. That's what I concluded from the post, but again it was from 2018 so they might have optimized it. I'll check out the code.

finite breach Aug 6, 2020, 11:13 AM

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@amber flicker Seems the compiler handles it nicely now and does exactly the same thing, if not better because it gets moved to a IJobChunk automatically with the extraction of the ComponentDataForEntity outside the loop

amber flicker Aug 6, 2020, 11:13 AM

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sweet - thanks for following up

rancid geode Aug 6, 2020, 11:14 AM

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Almost nothing from 2018 is valid today, 2018 version has many major differences to how things are now

finite breach Aug 6, 2020, 11:16 AM

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Yeah I know, it has been 3 months since I used dots and I am checking up on the changes again 🧐

opaque ledge Aug 6, 2020, 11:30 AM

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@half jay its a visual bug, https://forum.unity.com/threads/resolved-burst-does-not-work-on-android-device.945509/

Unity Forum

Bug - (resolved) Burst does not work on Android device.

Hi. I found that the Android build with Unity 2020.1 + Burst enabled shows burst related error when startup:

Unable to find lib_burst_0_0
Unable to...

half jay Aug 6, 2020, 12:14 PM

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@opaque ledge not rly. I deprecated Entities to 0.11.0 still have this error but without Out of memory. Found this solution which was described two days ago.
https://answers.unity.com/questions/1755666/cannot-load-lib-burst-0-0-on-android-builds.html

Cannot load "lib_burst_0_0" on Android builds - Unity Answers

Unity is the ultimate game development platform. Use Unity to build high-quality 3D and 2D games, deploy them across mobile, desktop, VR/AR, consoles or the Web, and connect with loyal and enthusiastic players and customers.

tight blade Aug 6, 2020, 12:19 PM

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@zinc plinth ohhh damn that sucks. what a bummer. mesh isn't a struct?

zinc plinth Aug 6, 2020, 12:20 PM

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Mesh is a class, renderMesh is a struct ISCD

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So bye-bye jobs

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Cuz m not rewriting CombineInstance by hand

tight blade Aug 6, 2020, 12:21 PM

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uggggh

zinc plinth Aug 6, 2020, 12:21 PM

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At least I only have to combine my meshes once so..

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Just. More loading time I giess5