#archived-dots | Official Unity Discord | Page 130

naive parrot Apr 8, 2020, 5:01 PM

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i see. insightful

stone osprey Apr 8, 2020, 5:01 PM

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@mint iron Thanks ! Its already the latest version :/

vagrant surge Apr 8, 2020, 5:01 PM

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i was doing some fun shit tho

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i was storing meshes

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into textures

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and then using bindless textures to load many different meshes, of different sizes, allocated separately... into a single drawcall

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then i learnt that there are actually bindless buffers and i was just an idiot using bindless textures for that

stone osprey Apr 8, 2020, 5:13 PM

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Packages\com.unity.entities@0.8.0-preview.8\Unity.Entities.PerformanceTests\JobForEachPrefilteringPerformanceTests.cs(146,18): error CS1061: 'MethodMeasurement' does not contain a definition for 'Definition' and no accessible extension method 'Definition' accepting a first argument of type 'MethodMeasurement' could be found (are you missing a using directive or an assembly reference?)

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Any idea where the hell this error comes from ?

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This setup is a real pain, why dont they simply fix the dependencies ? :c

craggy orbit Apr 8, 2020, 5:15 PM

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i was somewhat correct in my earlier assumption that the Hybrid Renderer (v1) does not support Texture2DArrays. i updated my URP packages to 9.0 and it all works 🎉

bright sentinel Apr 8, 2020, 5:16 PM

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"does not contain a definition for 'Definition'" lmao

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Definition of definition: See definition

opaque ledge Apr 8, 2020, 5:16 PM

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downgrade performance package to 1.3x

stone osprey Apr 8, 2020, 5:17 PM

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@opaque ledge You are a demi god...thanks a lot, that did the trick ^^

opaque ledge Apr 8, 2020, 5:18 PM

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Well i prefer God-Emperor, but demi god is good as well 👺

stone osprey Apr 8, 2020, 5:19 PM

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Ignore the demi, probably a real god 😉

opaque ledge Apr 8, 2020, 5:20 PM

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@craggy orbit Thats probably Hybrid Renderer v2 🤔

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Hybrid Renderer v1 was long long time ago, then it came render mesh v2 and then newest and shinest hybrid renderer v2

craggy orbit Apr 8, 2020, 5:23 PM

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🤔 i must've misread then. i was using whichever one doesn't require the define symbol for Hybrid Renderer 0.4

glad condor Apr 8, 2020, 5:29 PM

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@thorny vault Thanks for the info, ill look into it!

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Although, I have to ask, would dots netcode be currently suitable for starting development on an MMO?

opaque ledge Apr 8, 2020, 5:32 PM

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yeah that should be render mesh v2

wide fiber Apr 8, 2020, 5:33 PM

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How should Input be handled in DOTS?

I am using Input.GetKey(..) in the function OnUpdate (the class inherits from SystemBase) but it doesn't work sometimes

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I was thinking about using the new Input System, I will search how to implement it with DOTS

opaque ledge Apr 8, 2020, 5:35 PM

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it still should, i am using new input system but old system should work as well

wide fiber Apr 8, 2020, 5:38 PM

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Sometimes it doesn't read the key correctly (when the key is pressed it returns false), it isn't a computer/keyboard problem.. Later I will send the code

opaque ledge Apr 8, 2020, 5:39 PM

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hmm it should 🤔

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i mean i did the same, in OnUpdate method i check if button/key is pressed and if so i schedule a job

zenith wyvern Apr 8, 2020, 5:42 PM

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Sounds like maybe you're losing inputs if your system is not updating. If it's reading input your system should probably have the [AlwaysUpdateSystem] attribute

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Otherwise it won't catch input if it has no matching queries

wide fiber Apr 8, 2020, 5:42 PM

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(It is rare, but it is annoying)

opaque ledge Apr 8, 2020, 5:43 PM

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what does AlwaysUpdateSystem do 🤔

zenith wyvern Apr 8, 2020, 5:44 PM

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It forces the system to call OnUpdate every frame, instead of only calling OnUpdate when it has a query match

wide fiber Apr 8, 2020, 5:46 PM

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The query should match every time, I am not deleting any component.. in a few minutes I will send the code of the input system

zenith wyvern Apr 8, 2020, 5:48 PM

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Rather than just assuming you can see for yourself, if you add [AlwaysUpdateSystem] to your input reading system do the input drops stop?

safe lintel Apr 8, 2020, 5:56 PM

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there shouldnt be a need for alwaysupdatesystem when using systembase

zenith wyvern Apr 8, 2020, 6:01 PM

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Sure there is, if you're trying to read input every frame inside OnUpdate and your system has any queries in it then you will fail to read input if the query doesn't match because OnUpdate would never be called for that frame

wide fiber Apr 8, 2020, 6:07 PM

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Thanks, it's working
But I think I will switch to the new input system

zenith wyvern Apr 8, 2020, 6:08 PM

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The new input system is much better in a lot of ways but it's not integrated with dots any more than the old system is fyi

safe lintel Apr 8, 2020, 6:08 PM

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oh my bad, confusing with alwayssynchronizesystem(hmm might have to look at some of my code)

zenith wyvern Apr 8, 2020, 6:08 PM

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You still have to read input on the main thread and pass it in, the same way as with the old system

bright sentinel Apr 8, 2020, 6:09 PM

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Do you know of any plans for DOTS input system?

safe lintel Apr 8, 2020, 6:09 PM

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anyway @wide fiber theres an example of using the new inputsystem with dots https://github.com/Unity-Technologies/EntityComponentSystemSamples/blob/d616c1b077c306e6f31b41a3970799e4b132139b/UnityPhysicsSamples/Assets/Common/Scripts/DemoInputGatheringSystem.cs pretty much copied it for my own uses

GitHub

Unity-Technologies/EntityComponentSystemSamples

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

zenith wyvern Apr 8, 2020, 6:09 PM

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Nope. I think there's a webinar thing coming up all about the new input system though, maybe we'll hear something there

opaque ledge Apr 8, 2020, 6:12 PM

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i think current input system works fine with DOTS 🤔

safe lintel Apr 8, 2020, 6:17 PM

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it does, but it also is quite limited compared to the new system

dense crypt Apr 8, 2020, 6:22 PM

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I have a situation I'm not sure how to deal with:

You have three jobs: JobA, JobB, JobC.
Now JobA does some calculations and comes to the result true or false.
If the result is true JobB should run, but if it's false JobC should run instead. How would you structure this?

In my head the only way is to output the result in a NativeArray<bool>, and start both JobB and JobC. Then each job checks the result and the one that shouldn't run will early out. (if this seems familiar I asked it in the GDL discord the other day.)

opaque ledge Apr 8, 2020, 6:22 PM

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i mean by current input system i meant new system 😄

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old one called input manager, new one called input system so

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exactly Peppe

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tho you have to make sure JobB and JobC are depending on JobA

safe lintel Apr 8, 2020, 6:24 PM

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i do hate how more and more names are overlapping with all these new packages 🙂

dense crypt Apr 8, 2020, 6:24 PM

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Yes the dependencies I left out to not make the message too long 😅

warped trail Apr 8, 2020, 6:26 PM

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merge JobB and JobC in 1 job and use if inside?🤔

dense crypt Apr 8, 2020, 6:26 PM

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Yeah in my case the jobs are ForEach jobs working on completely different components so that would probably make it less readable, but it's an option for sure.

steep timber Apr 8, 2020, 6:32 PM

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what is dots?

warped trail Apr 8, 2020, 6:33 PM

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performance by default😅

opaque ledge Apr 8, 2020, 6:34 PM

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@mint iron btw, do you have any brief example for the event system you created ? i am too scrub to figure out stuff on my own

bright sentinel Apr 8, 2020, 6:34 PM

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determinism by default

mint iron Apr 8, 2020, 6:34 PM

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sure, its not brief though, its complicated so that it can be brief later 🙂

coarse turtle Apr 8, 2020, 6:37 PM

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looking forward to it - hoping I can use it to replace my current messaging system in the ui system haha 👀

opaque ledge Apr 8, 2020, 6:37 PM

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sure 😄

mint iron Apr 8, 2020, 6:37 PM

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kk, well i have a package sort of ready, lemme just check it still works

coarse turtle Apr 8, 2020, 6:38 PM

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haha no worries, take your time - I need to wrap up some preliminary stuff on my side before looking into it 😅

opaque ledge Apr 8, 2020, 6:39 PM

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it would be perfect for me because when ships explode i run an explosion effect

mint iron Apr 8, 2020, 6:39 PM

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oh wait, you're just talking about events in general

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for some reason i thought u meant the InputAction mapping to ecs events

opaque ledge Apr 8, 2020, 6:40 PM

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right now i run in a weird method, i run trigger job without burst and 'register' the position to MB, and MB creates/retrieves from pool and run the effect in Update method, kinda weird

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oh no, it was a question for your event system that you posted today

mint iron Apr 8, 2020, 6:40 PM

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yeah heres the example source https://github.com/jeffvella/UnityEcsEvents.Example

GitHub

jeffvella/UnityEcsEvents.Example

An example showing the how ECS Events package can be utilized in a game. - jeffvella/UnityEcsEvents.Example

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it shows how to do UI stuff and spawn particle effects, scene loading etc

warped trail Apr 8, 2020, 6:41 PM

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InputAction mapping to ecs events this is very interesting 👀

opaque ledge Apr 8, 2020, 6:41 PM

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yeah but.. where is the main event system ?

mint iron Apr 8, 2020, 6:42 PM

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its included in the example in /packages/ or https://github.com/jeffvella/UnityEcsEvents

GitHub

jeffvella/UnityEcsEvents

An event system for Unity's data oiented design framework. - jeffvella/UnityEcsEvents

opaque ledge Apr 8, 2020, 6:42 PM

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alright thanks, well i will check it out, it looks complicated, bunch of scripts 😄

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but hopefully i will figure it out

mint iron Apr 8, 2020, 6:42 PM

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nah its easy 😄

opaque ledge Apr 8, 2020, 6:45 PM

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👍

obtuse swallow Apr 8, 2020, 7:14 PM

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I get an error "Entities.ForEach Lambda expression writes to captured variable", while all I am doing is querying the Contains method of a nativearray. This should not count as a write. Anyone ever had the same problem?

bright sentinel Apr 8, 2020, 7:15 PM

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@obtuse swallow Can you show the code?

junior fjord Apr 8, 2020, 7:25 PM

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@mint iron oh cool, I'll also check you event system out

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didn't know someone has coded a package already

coarse turtle Apr 8, 2020, 7:34 PM

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@mint iron ok - it's very easy to implement lol 👀

obtuse swallow Apr 8, 2020, 7:38 PM

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Sure:

var loadedPositionsComps = _loadedSectionsQuery.ToComponentDataArray<SectionPosition>(Allocator.Temp);
        var loadedSectionPositions = new NativeArray<int3>(loadedPositionsComps.Select(component => component.value).ToArray(), Allocator.TempJob);
        Entities.WithName("LoadSections").ForEach((in RequiredSectionPositions component) =>
        {
            foreach (var requiredSectionPosition in component.value.Where(requiredSectionPosition => !loadedSectionPositions.Contains(requiredSectionPosition)))
            {
                // TODO Create Entity for Section
            }
        }).ScheduleParallel();

mint iron Apr 8, 2020, 7:40 PM

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it might be because you're using foreach in a burst job - unless something has changed, you can only do that if its a ref struct enumerator. also using linq? definitely can't use that.

coarse turtle Apr 8, 2020, 7:44 PM

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loadedPositionsComps needs to be passed to your job code via WithReadOnly(...) or an equivalent. Also I think you might need to use a TempJob allocator instead of a Temp

opaque ledge Apr 8, 2020, 7:52 PM

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you cant do any managed(class) stuff in your jobs, if you want to, you have to do WithoutBurst().Run(), which means it will run on main thread and without burst

junior fjord Apr 8, 2020, 7:52 PM

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has anyone ever had a situation like this:
I have a system, when I set a breakpoint before the foreach, the breakpoint is hit. When I set it inside the foreach, the breakpoint is not hit. Nevertheless, the entity debugger shows that the system is run, takes time and matches the right entities against that system

zenith wyvern Apr 8, 2020, 7:54 PM

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I'm not sure what the situation is with burst and breakpoints, maybe you have to disable burst while doing that kind of debugging

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Since it's doing codegen I'm not sure how that works either

obtuse swallow Apr 8, 2020, 7:55 PM

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Thanks guys, I'll try to rethink my code to get around all that.

junior fjord Apr 8, 2020, 7:55 PM

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burst is disabled

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and normally breakpoints inside the foreach work like a charm in this case

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even now, in other systems the breakpoint in the foreach works

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ah ok, found the mistake

wide fiber Apr 8, 2020, 8:06 PM

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If I want to make a Follower script (an entity that follows another entity), how can I make a field in the inspector where I can put the entity to follow? As far as I know components can't store references

hollow sorrel Apr 8, 2020, 8:07 PM

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you can store entity id on a component and do a lookup in your system

wide fiber Apr 8, 2020, 8:08 PM

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Ok thanks, I will try this

warped trail Apr 8, 2020, 8:10 PM

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something like this will work in SystemBase```cs
struct MyComponent : IComponentData
{
public Entity Value;
}
Entities.ForEach((ref MyComponent component)=>
{
Translation translation = GetComponent<Translation>(component.Value);
}).ScheduleParallel();

bright sentinel Apr 8, 2020, 8:11 PM

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I think the problem is more how to populate Value of the MyComponent struct

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That's generally the problem I had when starting out

wide fiber Apr 8, 2020, 8:13 PM

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I could do some tricks with authoring (I hope) to get the entity by the GameObject (I am using hybrid ECS)

fallow mason Apr 8, 2020, 8:14 PM

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Leader tag component. Query for it. ToEntityArray(). Get index 0. Profit?

bright sentinel Apr 8, 2020, 8:15 PM

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What you can do is, after your conversion system runs, have a query that gets the entity you want, and another query that gets the component that needs that entity. Then it's a simple matter of putting the entity into the component

naive parrot Apr 8, 2020, 9:48 PM

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how do i read entity debugger view? can somone provide some input what all the numbers scattered all around means?

📎 unknown.png

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i get the chunk and components aspect.

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also wondering about orange line

opaque ledge Apr 8, 2020, 9:51 PM

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https://forum.unity.com/threads/chunk-info-ui-explained.586729/

Unity Forum

Chunk info UI explained

I can't say that this chunk info UI is intuitive, hope it is not a final design...
it was not very obvious for me from the first look what each its...

naive parrot Apr 8, 2020, 9:53 PM

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thanks!

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does ECB work with IJobChunk ? to use it in parallel it requires jobIndex as one of its parameter , so is chunkIndex a valid input for that ?

mint iron Apr 8, 2020, 10:11 PM

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yes

winter depot Apr 8, 2020, 10:49 PM

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Does anyone have a good link for understanding how to work around not being able to call external methods in SystemBase Entites. lambda? For example I was previously using a ijobforeach where I had convenience methods in the struct, now I cannot .Schedule, I must do .WithoutBurst().Run()

coarse turtle Apr 8, 2020, 10:53 PM

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https://docs.unity3d.com/Packages/com.unity.burst@1.3/api/Unity.Burst.FunctionPointer-1.html?q=function

I'm assuming - i think going forward we might have to use function pointers? (Not entirely too sure)

winter depot Apr 8, 2020, 10:54 PM

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Okay, thank you I will take a look

zenith wyvern Apr 8, 2020, 10:59 PM

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You can use static methods or just create a struct identically to how the IJFE structs worked. There's examples https://forum.unity.com/threads/deprecating-ijobforeach-good-replacement-patterns.846301/

Unity Forum

Deprecating IJobForEach, good replacement patterns

I think I understand not wanting to support codegen for IJobForEach types and lambda's. But lambda's are not generally used for where Entities.ForEach...

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Specifically https://forum.unity.com/threads/deprecating-ijobforeach-good-replacement-patterns.846301/#post-5592034

coarse turtle Apr 8, 2020, 11:04 PM

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oh cool 👍

winter depot Apr 8, 2020, 11:04 PM

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thanks @zenith wyvern

loud matrix Apr 8, 2020, 11:39 PM

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Is there a easy way to reference entities created with convert to entity?
I have a camera created with convert, and a player created with pure ECS.
I have a IComponentData on the camera to reference the entity its following (player).
The only way I know to do this is to add more components just so i can search with them, which doesn't feel like the right solution.

glad solar Apr 8, 2020, 11:46 PM

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Alright, i searched but it seems to be a problem with the new preview version of the Entities package.

Does anyone is having the same issue as me with Entities package "Preview.8 - 0.8.0"?

Library\PackageCache\com.unity.entities@0.8.0-preview.8\Unity.Scenes.Hybrid\LiveLink\LiveLinkPlayerSystemGroup.cs(32,59): error CS0117: 'SceneSystem' does not contain a definition for 'GetBootStrapPath'

I'm seriously thinking in downgrading the version i'm using, however i went to some reference problems in my cs files.

My project focus is for android only.

hollow sorrel Apr 8, 2020, 11:50 PM

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@glad solar https://forum.unity.com/threads/entities-0-8-compile-error-in-android-platform.846583/

glad solar Apr 8, 2020, 11:56 PM

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@hollow sorrel thank you. I saw this and i was hoping for a native solution.
I"ll try searching for a while, if i can't find any, i'll try modifying the files and then if still with erros, then i will downgrade (unfortunately).

glad solar Apr 9, 2020, 12:20 AM

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😢 oh well... downgrading...
Seems that everytime i reopen unity, it undo the changes i did described in the link. So it is futile to do it.

hollow sorrel Apr 9, 2020, 12:22 AM

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just make it a local package until its updated

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https://forum.unity.com/threads/entities-0-8-compile-error-in-android-platform.846583/#post-5609899

gusty comet Apr 9, 2020, 12:28 AM

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Does anyone have any good learning resources they could share for the dots networking stack?

zenith wyvern Apr 9, 2020, 12:49 AM

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The best/most up to date resources are in the pinned messages in this channel

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Oh sorry you said networking specifically. I don't think there's anything aside from the cube sample and the FPS sample right now

coarse turtle Apr 9, 2020, 1:16 AM

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Hmm - I'm not sure if anyone had an issue like this before right?

Library/PackageCache/com.unity.properties@0.10.4-preview/Runtime/Unity.Properties/Utility/TypeConversion.cs(51,25): error CS0234: The type or namespace name 'Unsafe' does not exist in the namespace 'System.Runtime.CompilerServices' (are you missing an assembly reference?)

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Seems to only happen when I add in a custom package... 🤔

mint iron Apr 9, 2020, 1:26 AM

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hmmm, very odd.

coarse turtle Apr 9, 2020, 2:26 AM

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ah that was dumb - I guess my scoped registry was messed up 😅

glad solar Apr 9, 2020, 2:43 AM

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May someone help me out?
I'm runing into this message:

error DCICE001: Entities.ForEach Lambda expression uses something from its outer class. This is not supported. Seeing this error indicates a bug in the dots compiler. We'd appreciate a bug report (About->Report a Bug...). Thnx! ❤️

The system:

using Game.Data;
using Unity.Entities;

namespace Game.Generation.Systems {
    public class MapGeneratorTerrainSystem : SystemBase {
        private Entity _terrainEntity;

        protected override void OnStartRunning() {
            Entities.ForEach((in PrefabHolderData prefabHolder) => {
                _terrainEntity = prefabHolder.TerrainPrefab;
            }).Run();
        }

        protected override void OnUpdate() {
            if (_terrainEntity == null)
                return;
        }
    }
}```
*PrefabHolderData file:*
```cs
using Unity.Entities;

namespace Game.Data {
    [GenerateAuthoringComponent]
    public struct PrefabHolderData : IComponentData {
        public Entity TerrainPrefab;
    }
}```

Is it really a bug? I don't know what can i do from here to solve this.
If it is really a bug, i'll have to find another way around this problem.

*aahhh what a pain...*😞

gusty comet Apr 9, 2020, 2:44 AM

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@zenith wyvern thank you

low tangle Apr 9, 2020, 2:52 AM

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@glad solar its complaining about that ref to the _terrainEntity; you can't directly ref stuff outside of the local scope.
all you need to change is to make a local Entity _temp;
run the foreach
then assign the _terrainEntity = _temp; at the end

glad solar Apr 9, 2020, 3:00 AM

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@low tangle love you! 😘
The error message should be more straight. Thank you so much!

low tangle Apr 9, 2020, 3:02 AM

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ThumbsupA

wide fiber Apr 9, 2020, 4:06 AM

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Leader tag component. Query for it. ToEntityArray(). Get index 0. Profit?
@fallow mason (nope, I want multiple entities to follow multiple targets)

finite ibex Apr 9, 2020, 4:40 AM

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I'm using Unity UI Extensions in a regular project for their Polygons. Can I draw lines / Polygons using dots?

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I only need to go up to 20 sided polygon, maybe I could just create a mesh for each? is that a thing?

wide fiber Apr 9, 2020, 9:03 AM

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What you can do is, after your conversion system runs, have a query that gets the entity you want, and another query that gets the component that needs that entity. Then it's a simple matter of putting the entity into the component
@bright sentinel How can I get the converted entity of a GameObject?
I have a Gameobject (the target to follow) field in an authoring component, how can I get the entity of the target?

opaque ledge Apr 9, 2020, 9:05 AM

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you have to implement IDeclaredPrefabReferences, in it's method you have to add your gameobject to the list(comes from method) and in Convert method you have to do conversionSystem.GetPrimaryEntity(YourGameObject) which gives you the entity of that gameobject

wide fiber Apr 9, 2020, 9:07 AM

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Thanks :D
Really helpful

warped trail Apr 9, 2020, 9:34 AM

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this will do the same thing🤔 cs [GenerateAuthoringComponent] public struct MyComponent : IComponentData { public Entity EntityToFollow; }

opaque ledge Apr 9, 2020, 9:35 AM

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i think Entity fields doesnt show in inspector, they are not serializable 🤔

warped trail Apr 9, 2020, 9:36 AM

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this will generate same code as yours 😅

opaque ledge Apr 9, 2020, 9:38 AM

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hoo it does 👀

amber flicker Apr 9, 2020, 9:49 AM

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With an IJobChunk what's the difference between Schedule & ScheduleParallel?

warped trail Apr 9, 2020, 9:51 AM

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no difference i guess🤔

amber flicker Apr 9, 2020, 9:52 AM

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struggling to find an appropriate docs page about which I should be using

warped trail Apr 9, 2020, 9:54 AM

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i guess they will change it in the future to match foreach methods

amber flicker Apr 9, 2020, 9:54 AM

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yea - going with scheduleparallel - seems to be the one used here https://docs.unity3d.com/Packages/com.unity.entities@0.8/manual/chunk_iteration_job.html

warped trail Apr 9, 2020, 9:55 AM

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😅

📎 1.png

amber flicker Apr 9, 2020, 9:56 AM

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nice, good find thanks

wide fiber Apr 9, 2020, 10:38 AM

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this will do the same thing🤔 cs [GenerateAuthoringComponent] public struct MyComponent : IComponentData { public Entity EntityToFollow; }
@warped trail I think entities are not serializable, I am using a Gameobject field, not an Entity field

opaque ledge Apr 9, 2020, 10:39 AM

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i just tried it, it shows Gameobject field in inspector

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so you are not actually putting Entity to inspector, you are putting Gameobject

warped trail Apr 9, 2020, 10:40 AM

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just try it 😅

opaque ledge Apr 9, 2020, 10:40 AM

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i guess it will automatically convert it to Entity and put the Entity to that component

wide fiber Apr 9, 2020, 10:59 AM

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Ok

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How can I get the magnitude of a float3? A lot of mathematics things don't exist in float3

opaque ledge Apr 9, 2020, 11:02 AM

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length

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Unity.Mathematics.math.Length

wide fiber Apr 9, 2020, 11:03 AM

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:D

fallow mason Apr 9, 2020, 11:37 AM

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Interesting. So you wouldn't need to put that GO in a subscene or add ConvertToEntity? It will just convert because it was assigned to a field that will convert?

warped trail Apr 9, 2020, 11:43 AM

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in your case you will get prefab entity

fallow mason Apr 9, 2020, 11:44 AM

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so not a reference to the GO->Entity I put in there, but a copy?

warped trail Apr 9, 2020, 11:44 AM

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you will get reference to another Entity if it exist in scene

fallow mason Apr 9, 2020, 11:45 AM

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You lost me. Probably because I have not delved into prefab entities just yet.

warped trail Apr 9, 2020, 11:45 AM

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prefab entity is just an entity with prefab component

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if your GO don't exist in scene, then it will be converted to entity and marked as prefab

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if GO is in scene then you will get reference to its entity

fallow mason Apr 9, 2020, 11:47 AM

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ah I didn't know that

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thanks, @warped trail

warped trail Apr 9, 2020, 11:48 AM

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but it has to be in 1 scene, no cross scene references 😅

fallow mason Apr 9, 2020, 11:48 AM

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right, I've come across that error doing other things

warped trail Apr 9, 2020, 11:50 AM

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i guess this is the way to store prefabs for now🤔

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make a buffer of prefabs in 1 entity

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and this prefabs are saved in subscenes, so in the end you get 2 copies of 1 object 😅

fallow mason Apr 9, 2020, 11:52 AM

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huh, seems undesirable

warped trail Apr 9, 2020, 11:52 AM

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they say they will fix that in the future

fallow mason Apr 9, 2020, 11:52 AM

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do they get picked up by systems? do you need to filter out prefabs if so?

warped trail Apr 9, 2020, 11:53 AM

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you have to explicitly query for prefab component to see this entities

fallow mason Apr 9, 2020, 11:53 AM

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ah ok. so it filters itself out unless you ask for it specifically

warped trail Apr 9, 2020, 11:53 AM

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yes

opaque ledge Apr 9, 2020, 11:53 AM

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normally, systems doesnt include the entities that has disabled and prefab components, you have to explicity query for them

warped trail Apr 9, 2020, 11:54 AM

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and when you instantiate it, it automagically removes prefab component

fallow mason Apr 9, 2020, 11:55 AM

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yeah, I was just thinking that prefab sounds like it acts like disabled

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alright, good to know

warped trail Apr 9, 2020, 11:55 AM

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they do something like this in Tinycs public struct PrefabStorage :IComponentData { public Entity RegularSmokePRefab; public Entity MagicSmokePrefab; }

#

and i guess you can get every entity which was intantiated with this prefab via LinkedEntityGroup🤔

gusty comet Apr 9, 2020, 1:11 PM

#

Re. hybrid renderer v2, is renderbounds in WS or local space?

#

I presume worldspace.

wide fiber Apr 9, 2020, 1:27 PM

#

I am converting the camera to an entity (because I don't want to rewrite some components to work as MonoBehaviour).

I want in some systems to get a reference to the camera: should I put a camera tag and make a query in the systems where I need the camera or should I make a static/singleton class that holds the reference?

opaque ledge Apr 9, 2020, 2:15 PM

#

there is no ECS camera so you have to make convert mode to convert and inject, then you will simply have the game object, i guess making a singleton class is much better

#

You should also make an authoring component on your camera object that will add "CopyTransformToGameObject" component which is under Unity.Transform namespace, you can add CameraTag component to make queries on ECS side

warped trail Apr 9, 2020, 2:17 PM

#

you can convert camera😅

#

i guess it is converted to hybrid component or something🤔

opaque ledge Apr 9, 2020, 2:21 PM

#

You cant convert camera, hence you do convert and inject 🤔

warped trail Apr 9, 2020, 2:22 PM

#

if you place camera in subscene it is not destroyed 🤔

opaque ledge Apr 9, 2020, 2:22 PM

#

last time i tried it did 🤔

#

which was in entities 0.5

warped trail Apr 9, 2020, 2:24 PM

#

i guess this is how thing will be. If object can be converted you get normal entity, if not then you get hybrid entity🤔

opaque ledge Apr 9, 2020, 2:25 PM

#

i mean i do remember taking my camera out of subscene because it was destroyed

warped trail Apr 9, 2020, 2:25 PM

#

oh, i lied😋

#

it is not destroyed when you keep subscene open😕

#

i hate this thing

opaque ledge Apr 9, 2020, 2:27 PM

#

i should probably get used to do some subscene thingie, it sounds useful for pure entities

warped trail Apr 9, 2020, 2:28 PM

#

they kinda cool, when they work 😅

wide fiber Apr 9, 2020, 2:35 PM

#

I have put the ConvertToEntity script to the camera GameObject, it gets converted to an entity

#

I don't know what are hybrid entities

warped trail Apr 9, 2020, 2:40 PM

#

forget what i said, i was wrong😕

stiff skiff Apr 9, 2020, 2:53 PM

#

Is there a simple of ConvertAndInject ?

#

I've been going through the ECSScamples, but can only find ConvertAndDestroy used

fallow mason Apr 9, 2020, 2:54 PM

#

Yeah weird things happen when you run with subscene open. Things move in the game view, but not scene view.

opaque ledge Apr 9, 2020, 2:54 PM

#

you mean sample ?

stiff skiff Apr 9, 2020, 2:55 PM

#

Sorry, *sample

bright sentinel Apr 9, 2020, 2:55 PM

#

@stiff skiff Just means you will also have the gameobject available

fallow mason Apr 9, 2020, 2:55 PM

#

I think I understand a little why, but still an odd halfway thing

opaque ledge Apr 9, 2020, 2:55 PM

#

well so.. basically Unity converts your gameobject to entity then instead of destroying your gameobject it simply doesnt destroy it

stiff skiff Apr 9, 2020, 2:56 PM

#

But the GameObject is linked the entity right?

opaque ledge Apr 9, 2020, 2:56 PM

#

yes it is

zenith wyvern Apr 9, 2020, 2:56 PM

#

The monobehaviours that are attached to the gameobject will also be attached to the entity, specifically

#

So you can query for them

stiff skiff Apr 9, 2020, 2:57 PM

#

So with the normal flow, you can spawn a "prefab" by converting it in advance, and then spawning it using the pre-converted prefab entity as a source

opaque ledge Apr 9, 2020, 2:57 PM

#

you can use CopyTransformFromGameObject, if you want to control the game object and want to have entity part of it sync with gameobject, or CopyTransformToGameObject if you want to do the opposite

stiff skiff Apr 9, 2020, 2:57 PM

#

Is this also possible with the flow where I keep the gameobject?

#

Context: I want to spawn prefabs that are partially converted to ECS, some things are still monobehaviour and I dont want to move everything over in 1 go

opaque ledge Apr 9, 2020, 2:58 PM

#

ah, for that i think you need to use HybridComponents

#

when you convert a gameobject with hybrid component to an entity it will have CompanionLink which is responsible for creating gameobject side when you instantiate that entity

#

however i couldnt make it work, so 😄

#

maybe you will have more luck

stiff skiff Apr 9, 2020, 2:59 PM

#

Yeah that will be fun to try

#

I currently have a system where I already have ECS entities, but want to have GameObject spawned for some of them, and link the object

#

currently not to bad, but I'm trying to get it working the unity's "Transform" system

#

so that my ecs entity does not need the managed Transform component

#

The goal is to close the gap between ECS and Monobehaviours a bit more. Without enforcing either flow

zenith wyvern Apr 9, 2020, 3:01 PM

#

That seems to be what they want from HybridComponent. But like Curly said I don't think it's there yet

opaque ledge Apr 9, 2020, 3:02 PM

#

You can always do the system data way, when you instantiate your entity you put "WaitForGameobjectProcess" then have a system that queries for those entities and runs with WithoutBurst().Run(), in that system you can instantiate gameobjects and do AddComponentObject to entity. Then you can do another WithoutBurst().Run() with querying that Monobehaviour and your entity and do your processing. Once your entity is destroyed system state will stay so you can query it to detect that and destroy your Monobehaviours(or pool them)

#

I am using this for World UI for my entities

#

If you didnt understand a thing, you can read about system states from here https://docs.unity3d.com/Packages/com.unity.entities@0.8/manual/system_state_components.html

#

I can later on share my code on how i do my UI

#

does anyone have link to srp github ? for some weird reason i cant find it

warped trail Apr 9, 2020, 3:05 PM

#

they moved it

#

https://github.com/Unity-Technologies/Graphics

opaque ledge Apr 9, 2020, 3:07 PM

#

oh thanks

loud matrix Apr 9, 2020, 3:53 PM

#

Is there a easy way to reference entities created with convert to entity?
I have a camera created with convert, and a player created with pure ECS.
I have a IComponentData on the camera to reference the entity its following (player).
The only way I know to do this is to add more components just so i can search with them, which doesn't feel like the right solution.

glad solar Apr 9, 2020, 3:58 PM

#

May someone help me out?

With my struct MapGeneratorData:

using Unity.Entities;
using Game.Utils;
using Unity.Collections.LowLevel.Unsafe;

namespace Game.Generation.Data
{
    [GenerateAuthoringComponent]
    public struct MapGeneratorData : IComponentData {
        public int MapSize; 
        public int GenerationSeed;
        //public int Phase;
        public MapGenerationPhase Phase;
        //public int Map;
        public UnsafeHashMap<UPosition, Entity> Map;
    }
}```
I'm getting this message:
> *ArgumentException: Game.Generation.Data.MapGeneratorData contains a field of Unity.Collections.LowLevel.Unsafe.DisposeSentinel, which is neither primitive nor blittable.*

I tried to switch my enum `MapGenerationPhase` to an int and the `UnsafeHashMap` to int as well, but i'm still getting the error.

*For information about `UPosition`*:
```cs
using System;

namespace Game.Utils {
    [Serializable]
    public struct UPosition: IEquatable<UPosition> {
        public int X;
        public int Y;

        public UPosition(int x, int y) {
            X = x;
            Y = y;
        }

        public bool Equals(UPosition other) {
            return other.X == X && other.Y == Y;
        }
    }
}```
> *float2 from mathematics didn't work either if wondering to use it.*

opaque ledge Apr 9, 2020, 4:13 PM

#

you cant put native arrays to component datas, they are not blittable

eternal ice Apr 9, 2020, 4:13 PM

#

If I am not mistaken, IComponentData does not support any write containers ..
Try use BlobAsset: https://github.com/Unity-Technologies/EntityComponentSystemSamples/tree/master/ECSSamples/Assets/Advanced/BlobAsset

GitHub

Unity-Technologies/EntityComponentSystemSamples

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

glad solar Apr 9, 2020, 4:30 PM

#

What about only with int types? As i said above:

I tried to switch my enum MapGenerationPhase to an int and the UnsafeHashMap to int as well, but i'm still getting the error.

opaque ledge Apr 9, 2020, 4:32 PM

#

that does sound like a bug then, int is blittable

#

i have never encountered it tbh

foggy garden Apr 9, 2020, 4:33 PM

#

could a feature be built into Discord Boost to add a turbo to a server via SMS?

warped trail Apr 9, 2020, 4:34 PM

#

i don't get any errors with this🤷‍♂️ cs [GenerateAuthoringComponent] public struct MapGeneratorData : IComponentData { public int MapSize; public int GenerationSeed; public int Phase; public int Map; }

glad solar Apr 9, 2020, 4:37 PM

#

hmm.... i'll try to restart unity then.
Few months ago i had a problem using namespace with dots. Without any namespace back at the time i could work without any issues. maybe this could be the issue. I'll try some tests here. thanks guys!

viral sonnet Apr 9, 2020, 4:39 PM

#

The UnsafeHashMap should work in a SharedComponentData but TBH I'd put it elsewhere. UPosition and then the map could be turned into an IComponentData with an entity buffer

sour ravine Apr 9, 2020, 4:48 PM

#

this sounds like a job for BlobAsset

dull copper Apr 9, 2020, 4:48 PM

#

SRP 9.0.0-preview.14 landed earlier this week. I would however recommend waiting until the next DOTS packages land (including hybrid renderer 0.4.2) to get latest bugfixes. This version also has working HybridHDRPSamples and HybridURPSamples projects in the DOTS repository for testing Hybrid Renderer V2.

warped trail Apr 9, 2020, 4:51 PM

#

where is this DOTS repository?😅

dull copper Apr 9, 2020, 4:51 PM

#

I'm guessing he things it's public repo 😄

#

or he just refers to ecs samples repo

#

also lol for the too bright lighting on hybrid renderer v2: This is fixed now. But I am afraid it just missed the branch off for the next package release.

#

so, will be broken on next release too

warped trail Apr 9, 2020, 4:56 PM

#

oh, and b5 is out😅

dull copper Apr 9, 2020, 4:56 PM

#

yup

#

been testing it as it has improvements on DX12 compute shaders

#

hybrid rendering v2 is now "only" 0.7ms slower in actual build for me when using DX12

#

DX12 used to run like 30-40 fps in editor with hybrid v2

#

now I get 180fps

#

that 0.7ms is still quite a lot, considering the total cpu time on built project is 3.3ms on DX11 and 4.0ms on DX12

#

but at least it's not the quarter of the perf on DX12 anymore

warped trail Apr 9, 2020, 5:02 PM

#

but lighting it totally broken in urp😒

dull copper Apr 9, 2020, 5:03 PM

#

also getting this on b5 now:

📎 unknown.png

#

heh, it goes away after I moved directional light and plane mesh out of dots subscene

#

oh well

warped trail Apr 9, 2020, 5:06 PM

#

wait, does this auto deletion system work in build?🤔

dull copper Apr 9, 2020, 5:06 PM

#

what auto deletion?

warped trail Apr 9, 2020, 5:07 PM

#

deleting an allocation that ....

#

this is for Allocator.TempJob

#

or is it just some safety system which works only in editor?

dull copper Apr 9, 2020, 5:10 PM

#

I don't know actually, but it shouldn't happen in the first place 😄

#

anyway, I try to force myself to not touch dots subscenes again

#

they've never been anything but trouble for me

#

I have another project on backburner that could benefit from them

#

but I'm simply waiting for DOTS to mature before I even go there

#

basically would want to use it for streaming bigger world in chunks

warped trail Apr 9, 2020, 5:12 PM

#

i update simulation group at low rate, so i get this warnings from physics DebugStream system😅

stiff skiff Apr 9, 2020, 5:12 PM

#

@opaque ledge Bit late, thanks for helping out 😉 Your idea is similar to my current approach

warped trail Apr 9, 2020, 5:13 PM

#

it allocates some TempJob things and deallocates it on the next update, but there is more than 5 frames between updates 😅

opaque ledge Apr 9, 2020, 5:14 PM

#

i have no idea how people make their job to work on multiple frames 🤔

warped trail Apr 9, 2020, 5:15 PM

#

so now i'm wondering, what if i will need information in this TempJob and it will be deallocated🤔

dull copper Apr 9, 2020, 5:16 PM

#

hmmm

#

it's not the dots subscene, it started it again when I opened the project again

#

for some reason it didn't spam that after I deleted dots subscene tho

warped trail Apr 9, 2020, 5:18 PM

#

maybe because your framerate dropped? 😅

dull copper Apr 9, 2020, 5:18 PM

#

210fps in the editor 🤔

#

oh

#

let me try the different physics update

#

ok, it is the physics update 😄

warped trail Apr 9, 2020, 5:20 PM

#

probably from debugstream

dull copper Apr 9, 2020, 5:21 PM

#

I had 50Hz physics setup for testing

#

I'm normally at 100Hz or 200Hz

amber flicker Apr 9, 2020, 5:23 PM

#

woo new packages.. lets see

wide fiber Apr 9, 2020, 5:24 PM

#

Is there a easy way to reference entities created with convert to entity?
I have a camera created with convert, and a player created with pure ECS.
I have a IComponentData on the camera to reference the entity its following (player).
The only way I know to do this is to add more components just so i can search with them, which doesn't feel like the right solution.
@loud matrix you can put a public variable of type Entity. A new field in the inspector will be available, you can drop in the GameObject that you want to follow, when the GameObject will be converted, the reference will be updated to his entity

amber flicker Apr 9, 2020, 5:26 PM

#

* Added the ability to reimport a SubScene via an inspector button, which forces reconversion.🥳

coarse turtle Apr 9, 2020, 5:27 PM

#

o 0.9.0 came out?

amber flicker Apr 9, 2020, 5:27 PM

#

yupppp

opaque ledge Apr 9, 2020, 5:27 PM

#

hooo 👀

amber flicker Apr 9, 2020, 5:27 PM

#

not hdrp though

opaque ledge Apr 9, 2020, 5:27 PM

#

@dull copper where the notes at 👀

amber flicker Apr 9, 2020, 5:28 PM

#

📎 message.txt

coarse turtle Apr 9, 2020, 5:29 PM

#

wow bursted ecb playbacks

amber flicker Apr 9, 2020, 5:30 PM

#

ya... pretty sweet

coarse turtle Apr 9, 2020, 5:30 PM

#

GetSingleton<T> supposedly received perf improvements

formal scaffold Apr 9, 2020, 5:30 PM

#

Hmmm, so if my Systems work in a specific order 🤔, which is the default order without touching them, will they work in any other order by default?

opaque ledge Apr 9, 2020, 5:30 PM

#

@formal scaffold its simply out of your hands, you can use UpdateAfter, UpdateBefore, UpdateInGroup attributes to set that order explicitly

dull copper Apr 9, 2020, 5:31 PM

#

@opaque ledge I don't paste HDRP notes here as they are not related to this channel 🙂

amber flicker Apr 9, 2020, 5:31 PM

#

* Improved performance of access to singletons through SetSingletonandGetSingleton in SystemBase (peformance is also improved through these methods on EntityQuery). as it was mentioned the other day

dull copper Apr 9, 2020, 5:31 PM

#

but https://discordapp.com/channels/489222168727519232/517108768933281843/697850822742114354

#

oh, the new dots packages got out?

opaque ledge Apr 9, 2020, 5:31 PM

#

umm, i didnt mean HDRP, i meant all DOTS packages 😄

dull copper Apr 9, 2020, 5:31 PM

#

yeah I see it now

#

I just checked these 30 minutes ago 😄

opaque ledge Apr 9, 2020, 5:31 PM

#

What have you done to real Olento, who are you imposter 👀

coarse turtle Apr 9, 2020, 5:32 PM

#

hmm time to see if things break between the package versions 🤔

amber flicker Apr 9, 2020, 5:36 PM

#

darn.. getting a bunch Library\PackageCache\com.unity.dots.editor@0.4.0-preview\Editor\GUI\Legacy\Controls\RuntimeComponents\RuntimeComponentsDrawer.cs(26,44): error CS0246: The type or namespace name 'EntityContainer' could not be found (are you missing a using directive or an assembly reference?) guess dots editor may not be compatible

coarse turtle Apr 9, 2020, 5:37 PM

#

yeah same here ):

opaque ledge Apr 9, 2020, 5:37 PM

#

oh god, should i downgrade 😄

amber flicker Apr 9, 2020, 5:37 PM

#

it's weird... you'd have thought at some point somebody would test a released combination of packages (esp given all the trouble).. *sigh

dull copper Apr 9, 2020, 5:37 PM

#

## [Entities 0.9.0] - 2020-04-08

### Added

* `public void GetCreatedAndDestroyedEntitiesAsync(NativeList<int> state, NativeList<Entity> createdEntities, NativeList<Entity> destroyedEntities)` detects which entities were created and destroyed since the last call to this method.
* Added the ability to reimport a SubScene via an inspector button, which forces reconversion.
* Added `GameObjectConversionSystem.DeclareAssetDependency` which expresses that the conversion result of a GameObject depends on an Asset
* Added `void EntityManager.Instantiate(NativeArray<Entity> srcEntities, NativeArray<Entity> dstEntities)`. It gives explicit control over the set of entities that are instantiated as a set. Entity references on components that are cloned to entities inside the set are remapped to the instantiated entities.
* Added `void EntityManager.CopyEntitiesFrom(EntityManager srcEntityManager, NativeArray<Entity> srcEntities, NativeArray<Entity> outputEntities = default)`. It lets you copy a specific set of entities from one World to another. Entity references on components that are cloned to entities inside the set are remapped to the instantiated entities.
* Added assembly for Mesh Deformation data structures.

#

### Changed

* Systems are now constructed in two phases. First, ECS creates a new instance of all systems and invokes the constructor. Then, it invokes all `OnCreate` methods. This way, you can now use `World.GetExistingSystem<OtherSystem>()` from inside `OnCreate()`.
* Systems are now destroyed in three phases. First, ECS stops all running systems (i.e. OnStopRunning() is invoked). Then it invokes all `OnDestroy` methods. Finally, ECS destroys all systems. This means you can perform safe and predictable cleanup of systems with cross-references to other systems.
* EntityCommandBuffer Playback now Bursted through function pointers. When there's a mix of unmanaged and managed commands in a single buffer, unmanaged commands will be Bursted. When there are no managed commands, each chain's Playback is fully Bursted.
* `Entities.ForEach` in a `GameObjectConversionSystem` no longer logs a warning if there are multiples of a queried authoring component on a matching GameObject. It now returns the first component instance of the desired type, so conversion systems can optionally call `GetComponents<T>()` in order to handle multiples if desired.
* Declaring a non-Prefab object as a referenced Prefab during conversion now emits a warning
* Improved performance of access to singletons through `SetSingleton` and `GetSingleton` in SystemBase (peformance is also improved through these methods on EntityQuery).
* Updated package `com.unity.properties` to version `1.1.0-preview`.
* Updated package `com.unity.serialization` to version `1.1.0-preview`.
* Updated package `com.unity.platforms` to version `0.2.2-preview.7`.```

#

### Deprecated

* Deprecated `public T World.CreateSystem<T>(params object[] constructorArguments)`. Please use `World.AddSystem(new MySystem(myParams));` instead.
* Deprecated `LiveLinkBuildImport.GetHash/GetDependencies/GetBundlePath`.

### Removed

* Removed expired API `TypeManager.CreateTypeIndexForComponent<T>()`
* Removed expired API `TypeManager.CreateTypeIndexForSharedComponent<T>()`
* Removed expired API `TypeManager.CreateTypeIndexForBufferElement<T>()`
* Removed expired API `DynamicBuffer.Reserve(int)`
* Removed expired API `World.Active`

#

### Fixed

* Fix BlobAssetSafetyVerifier to generate a better error message when `readonly` is used with BlobAsset references.
* Fixed incorrect comparison in `EntityChunk.CompareTo()`.
* `SceneManager.IsSceneLoaded` now works for converted entity Scenes and returns whether all sections of an entity Scene have loaded.
* Fixed Exception in conversion code when trying to delete entities that are part of a Prefab.
* Fixed Hybrid Component conversion failing when multiple components were added for the same GameObject.
* Fixed use of component access methods (GetComponent/SetComponent/HasComponent) inside Entities.ForEach with nested captures.
* Fix compilation issue when `ENABLE_SIMPLE_SYSTEM_DEPENDENCIES` is enabled.

### Security

### Known Issues
* System groups do not currently apply to systems running as part of `EntitySceneOptimizations`

#

such spam

wide fiber Apr 9, 2020, 5:39 PM

#

The Entity field doesn't show up in the inspector in a MonoBehaviour script, help

coarse turtle Apr 9, 2020, 5:40 PM

#

I dont think Entities are serialized by default

dull copper Apr 9, 2020, 5:40 PM

#

## [Collections 0.7.1] - 2020-04-08

### Deprecated

 * Deprecated `Length` property from `NativeHashMap`, `UnsafeHashMap`, `NativeMultiHashMap`,
   `UnsafeMultiHashMap`, `NativeQueue`, and replaced it with `Count()` to reflect that there
   is computation being done.

### Fixed

 * Fixed an issue where `FixedListDebugView<T>` only existed for IComparable types, which lead to a crash while debugging other types.
 * Removed code that made NativeStream incompatible with Burst.```

amber flicker Apr 9, 2020, 5:40 PM

#

alright removing Dots editor for now and at least it compiles.. not going to miss editor much atm anyway

coarse turtle Apr 9, 2020, 5:40 PM

#

I forget does DOTS Editor allow usage of Subscenes?

dull copper Apr 9, 2020, 5:40 PM

#

## [Burst 1.3.0-preview.9] - 2020-03-30

### Changed
- Improved the compile time performance when doing `UnsafeUtility.ReadArrayElement` or `UnsafeUtility.WriteArrayElement` with large structs.
- Made some compile-time improvements when indirect arguments (those whose types are too big that they have to be passed by reference) that reduced our compile time by 3.61% on average.

### Fixed
- Fixed a bug where storing a `default` to a pointer that was generic would cause an LLVM verifier error.
- Fixed an obscure bug in how struct layouts that had dependencies on each other were resolved.
- Fixed a bug as found by [@iamarugin](https://forum.unity.com/members/iamarugin.737579/) where LLVM would introduce ldexp/ldexpf during optimizations that LLD would not be able to resolve.
- Fixed a bug where the compiler would not promote sub-integer types to integers when doing scalar-by-vector math (like multiplies).```

coarse turtle Apr 9, 2020, 5:40 PM

#

Or is that entirely part of Entities base package?

opaque ledge Apr 9, 2020, 5:41 PM

#

What do you guys think of "public void GetCreatedAndDestroyedEntitiesAsync(NativeList<int> state, NativeList<Entity> createdEntities, NativeList<Entity> destroyedEntities)", can we jobify these, especially for registering children to parents since ecb doesnt give us valid id

amber flicker Apr 9, 2020, 5:41 PM

#

oh but now nothing renders haha.. guess you need hdrp 0.9

dull copper Apr 9, 2020, 5:41 PM

#

## [Hybrid Rendering 0.4.1] - 2020-04-08

### Added (Hybrid V2)

* DisableRendering tag component for disabling rendering of entities

### Changed

* Improved hybrid.renderer landing document. Lots of new information.

### Fixed

* Fixed shadow mapping issues, especially when using the built-in renderer.

### Misc

* Highlighting additional changes introduced in `0.3.4-preview.24` which were not part of the previous changelogs, see below.

amber flicker Apr 9, 2020, 5:42 PM

#

think dots editor is pretty much only the live conversion preview at the bottom of the gameobject? I still have access to livelink etc

coarse turtle Apr 9, 2020, 5:42 PM

#

oh ok

wide fiber Apr 9, 2020, 5:42 PM

#

I dont think Entities are serialized by default
@coarse turtle what do you mean? They are serializable inside IComponentData script, but they aren't inside MonoBehaviour :(

dull copper Apr 9, 2020, 5:43 PM

#

dots editor is the dots subscene entity conversion preview + lets you add convert to entity through checkbox on top of property inspector

#

talking of which

#

they didn't update dots editor on this package dump

#

and it's broken with new entities package

mint iron Apr 9, 2020, 5:44 PM

#

EntityCommandBuffer Playback now Bursted through function pointers 🔥

zenith wyvern Apr 9, 2020, 5:44 PM

#

* Added assembly for Mesh Deformation data structures. What does this mean

amber flicker Apr 9, 2020, 5:44 PM

#

no dots editor and nothing rendering unless you get the packages off github (at least I assume that'll fix it).. another great well tested release 😏 ... hoping hdrp .9 shortly follows

coarse turtle Apr 9, 2020, 5:45 PM

#

@wide fiber well I'm not sure if the Entity struct is serializable...? At least I'm not seeing that in the decompiled assembly

opaque ledge Apr 9, 2020, 5:45 PM

#

yeah its not serializable, you can serialize the world thru serialization namespace most likely, something something entityremapper, never tried

coarse turtle Apr 9, 2020, 5:46 PM

#

cool thanks @dull copper

warped trail Apr 9, 2020, 5:47 PM

#

@amber flicker what do you mean, hdrp 9.0 is in package manager?🤔

amber flicker Apr 9, 2020, 5:47 PM

#

oh.. refreshed again and now it is... sweet

#

thanks 👍

wide fiber Apr 9, 2020, 5:47 PM

#

@coarse turtle

📎 IMG_20200409_194655.jpg

warped trail Apr 9, 2020, 5:48 PM

#

this is not entity this is gameobject 😅

wide fiber Apr 9, 2020, 5:48 PM

#

It only works inside IComponentData, not inside MonoBehaviour

opaque ledge Apr 9, 2020, 5:48 PM

#

its not serialized, that happens because Unity creates the authoring automatically, and puts game object instead of entity

zenith wyvern Apr 9, 2020, 5:48 PM

#

Did you take a picture of your monitor

wide fiber Apr 9, 2020, 5:48 PM

#

this is not entity this is gameobject 😅
@warped trail ok sorry, I am stupid.. I was talking about GameObjects that get converted into entities sorry

opaque ledge Apr 9, 2020, 5:49 PM

#

put Entity field on somewhere, you wont be able to see it on inspector

wide fiber Apr 9, 2020, 5:49 PM

#

Yeah

#

put Entity field on somewhere, you wont be able to see it on inspector
@opaque ledge that's the problem

warped trail Apr 9, 2020, 5:52 PM

#

why do you need Entity field in MB anyway?🤔

opaque ledge Apr 9, 2020, 5:53 PM

#

Dont you dare to bring logic to this 👀

#

I just wanted to say, you dont put Entity directly on inspector, you put gameobject and convert it 🙂

fallow mason Apr 9, 2020, 5:58 PM

#

Entity

📎 JPEG_20200409_135819.jpg

opaque ledge Apr 9, 2020, 5:58 PM

#

lmao

wide fiber Apr 9, 2020, 6:02 PM

#

I was trying to put a reference to the camera inside a Singleton, but I think I will make the query in the systems where I need the camera (with a tag..)

opaque ledge Apr 9, 2020, 6:03 PM

#

use singleton for MB access, use camera tag for ECS access

wide fiber Apr 9, 2020, 6:03 PM

#

Okok

warped trail Apr 9, 2020, 6:10 PM

#

what about creating special system which will provide camera's data to entities?🤔

amber flicker Apr 9, 2020, 6:10 PM

#

why everyting bloooooooom hdrp 😅 - oh.. nope, new camera has helped.. still unbelievably buggy

wide fiber Apr 9, 2020, 6:23 PM

#

what about creating special system which will provide camera's data to entities?🤔
@warped trail I was thinking about performances, in that way I could make only a query for frame

#

Should I use SystemBase for every system?

zenith wyvern Apr 9, 2020, 6:24 PM

#

Yes, other systems will be deprecated

warped trail Apr 9, 2020, 6:25 PM

#

and what do you mean by query for frame?🤔

wide fiber Apr 9, 2020, 6:28 PM

#

Some Systems need a reference to the camera each frame, so I need to execute a query each frame (I don't want to cache the entity, it could change)

zenith wyvern Apr 9, 2020, 6:28 PM

#

Hmm, is URP 9 not available yet?

#

In UPM I mean

coarse turtle Apr 9, 2020, 6:28 PM

#

yea

bright sentinel Apr 9, 2020, 6:28 PM

#

It wasn't yesterday

warped trail Apr 9, 2020, 6:28 PM

#

it is available in package manager

coarse turtle Apr 9, 2020, 6:28 PM

#

preview.14

opaque ledge Apr 9, 2020, 6:28 PM

#

Library\PackageCache\com.unity.entities@0.9.0-preview.6\Unity.Scenes.Editor\BuildStepCreateResourceCatalog.cs(18,51): error CS0619: 'BuildStep' is obsolete: 'Replace with BuildStepBase. (RemovedAfter 2020-07-01)'

#

:/

zenith wyvern Apr 9, 2020, 6:29 PM

#

Oh I see it shows up if you click the "see all version" arrow

#

I guess since it's preview

warped trail Apr 9, 2020, 6:30 PM

#

@wide fiber i mean that you can create component like NeedCameraPosition and create system which will take camera position and copy it to every entity with NeedCameraPosition component

wide fiber Apr 9, 2020, 6:33 PM

#

Well I don't need the camera, but the camera component (in some of the components where I need a reference to the camera)
But I don't think it will be a problem, or at least I hope

#

I have a very weird error: https://pastebin.com/b8jupxSy
(Code and error)

zenith wyvern Apr 9, 2020, 6:35 PM

#

I don't think you should be using WithDeallocateOnJobCompletion if you're using Run. It doesn't really make sense since there's no job being scheduled

#

It looks like the error is related to that so try removing it

warped trail Apr 9, 2020, 6:36 PM

#

you can use .Dispose(JobHandle)

zenith wyvern Apr 9, 2020, 6:36 PM

#

There's no job. Just use Dispose

warped trail Apr 9, 2020, 6:38 PM

#

and you there is .CalculateEntityCount() method in EntityQuery 😅

opaque ledge Apr 9, 2020, 6:47 PM

#

@zenith wyvern is HDRP/URP 9.0 in preview ?

#

(since you said something like that)

zenith wyvern Apr 9, 2020, 6:47 PM

#

Yeah, but you can still get it directly from UPM

#

Just click the little arrow beside it's name in the package list

opaque ledge Apr 9, 2020, 6:47 PM

#

ah okay i will try to upgrade then

wide fiber Apr 9, 2020, 6:53 PM

#

Ok

formal scaffold Apr 9, 2020, 6:54 PM

#

Do I have this correct? ```cs
// Reset collision from prev. Frame
Entities.ForEach((ref ColAngle colAngle) => {
colAngle.Value = -1;
}).Schedule();

    // This ensures above is done first?
    Dependency.Complete();

    // Check for collision again.
    var collisionJob = new CollisionJob() {
        normals = normals,
        colAngles = colAngles,
        ltw = ltw
    }.Schedule(stepPhysicsWorld.Simulation, ref buildPhysicsWorld.PhysicsWorld, Dependency);

    collisionJob.Complete();

The first query is done before the second one starts?

coarse turtle Apr 9, 2020, 6:55 PM

#

yeah since you're forcing the threads to complete before you schedule the second job on the main thread

zenith wyvern Apr 9, 2020, 6:55 PM

#

You should just use Run instead of scheduling a job. Same result but you avoid the overhead

opaque ledge Apr 9, 2020, 6:57 PM

#

uhh, why not just chain them ?

formal scaffold Apr 9, 2020, 6:59 PM

#

What do you mean by chain? Anywhere I can read up on Schedule() and ScheduleParallell() and Run()? I have some questions like:
SystemA -> Uses ScheduleParallel()
SystemB -> Uses Run()

Will A run parallel next to B if I don't use complete()?

zenith wyvern Apr 9, 2020, 7:00 PM

#

Whether it will run parallel depends on if there are dependencies between them, and what else the scheduler happens to be doing when System B runs

#

By chain he means just don't call complete.

#

Schedule the jobs one after another and let the jobs system do what it was designed to do

warped trail Apr 9, 2020, 7:01 PM

#

from docsWhen you call Entities.ForEach.Run() the job scheduler completes all scheduled jobs that the system depends on before starting the ForEach iteration.

#

https://docs.unity3d.com/Packages/com.unity.entities@0.8/manual/ecs_job_dependencies.html

zenith wyvern Apr 9, 2020, 7:03 PM

#

The whole point of the job system is that you shouldn't be worrying about what the scheduler is doing. You only need to worry about your dependencies

formal scaffold Apr 9, 2020, 7:07 PM

#

By dependencies you mean which system updates which set of components and reducing overlap there, right?

zenith wyvern Apr 9, 2020, 7:08 PM

#

Yes, properly declare your read/writes on your components and the framework will do most of the work for you

vagrant surge Apr 9, 2020, 7:21 PM

#

@zenith wyvern i confirmed that checking the other day

#

its also why launching ecs systems is crazy hyperslow

#

couse it needs to check if all the inputs (component types) are safe to use

zenith wyvern Apr 9, 2020, 7:24 PM

#

Hopefully they can improve some of the crazy overhead from systems managing dependencies internally, but I suppose there's always going to be a price to pay for having all these safety checks in place

#

Hybrid Renderer v2 seems promising, 250k dynamic entities takes a few ms to render in the editor, that was more than enough to bring it to it's knees before

#

Still not great but certainly better

vagrant surge Apr 9, 2020, 7:25 PM

#

250k dynamic entities are no joke

#

on my own experiments, where i only render instanced cubes, it takes about 2 ms to render 300.000 cubes

zenith wyvern Apr 9, 2020, 7:26 PM

#

I'm going to try adding instanced color data next and see how that goes

viral sonnet Apr 9, 2020, 7:32 PM

#

entities 0.9 has appeared in the package manager ... still "offline" and unreachable so no changelogs

vagrant surge Apr 9, 2020, 7:32 PM

#

wonder what they added

#

@zenith wyvern shouldnt be too much of a perf hit, given the design

#

the design, as i see it (from the comments and the likes) essentially memcopies the chunk data straight to gpu memory

#

and then uses it when rendering

dull copper Apr 9, 2020, 7:33 PM

#

@viral sonnet https://discordapp.com/channels/489222168727519232/497874303463850004/697862838190080031

vagrant surge Apr 9, 2020, 7:35 PM

#

Improved performance of access to singletons through SetSingleton and GetSingleton in SystemBase (peformance is also improved through these methods on EntityQuery).

#

this is something i found on the Tiny racing demo that was much slower than what made sense to be

zenith wyvern Apr 9, 2020, 7:35 PM

#

Hmm, I'm not seeing the option for it

📎 Unity_kWk9G99eKS.png

viral sonnet Apr 9, 2020, 7:36 PM

#

@dull copper Thanks! Where did you get those?

dull copper Apr 9, 2020, 7:39 PM

#

@viral sonnet each package has changelog.md at the root of the package

#

you can find all packages you've installed on your projects library/packagecache

#

same with local docs

warped trail Apr 9, 2020, 7:39 PM

#

@zenith wyvern you want to change it via components?

viral sonnet Apr 9, 2020, 7:39 PM

#

oh, so it's downloadable? didn't want to try, hehe

zenith wyvern Apr 9, 2020, 7:39 PM

#

Yeah I found it in the shader graph, the checkbox is on custom properties now

viral sonnet Apr 9, 2020, 7:39 PM

#

good to know

warped trail Apr 9, 2020, 7:40 PM

#

there is special default components components

#

URP material property ....

zenith wyvern Apr 9, 2020, 7:40 PM

#

Oh I see

#

@warped trail Thanks!

dull copper Apr 9, 2020, 7:45 PM

#

btw

#

there's also a new platforms package but it's not compatible with the rest of the new dots packages

#

## [Platforms 0.3.0] - 2020-04-09

Build pipeline major overhaul: build pipelines are no longer asset based, and instead must be implemented in code by deriving from `BuildPipelineBase` class. Build steps are no longer mandatory but can still be used by deriving from `BuildStepBase`.

### Added
- New class `BuildPipelineBase` which is a class based replacement for `BuildPipeline` assets. Build steps can be used to organize build code, but is not mandatory anymore.
- New class `BuildStepBase` which is an optional replacement for now obsolete `BuildStep`.
- New class `BuildStepCollection` which represent a list of build steps that can be enumerated and executed.
- New class `BuildResult` and `RunResult` that derives from new base class `ResultBase`.
- New class `BuildProcess` which describe the state of an incremental build process.
- New class `RunContext` which holds the context when a pipeline is ran.
- Methods for querying build component values have been added to `ContextBase`.
- Methods for setting build component values are now available on `ContextBase`. Note that those values are only stored in memory; the build configuration asset is unchanged.
- New method `GetComponentOrDefault` on `BuildConfiguration` which returns the component value if found, otherwise a default instance of the component type without modifying the configuration.
- New method `GetComponentTypes` on `BuildConfiguration` which returns the flatten list of all component types from the configuration and its dependencies.
- New method `SetComponent` on `BuildConfiguration` that only takes a type and sets the component value to a default instance of the component type.
- New method `BuildIncremental` on `BuildPipelineBase` which can be used to implement build pipelines that run in background.

#

### Changed
- Class `BuildContext` now derives from new base class `ContextBase`.
- The `RequiredComponents` and `OptionalComponents` lists previously available on `BuildStep` have been replaced with the merged list `UsedComponents` on `BuildStepBase`.
- Methods `CanBuild` and `CanRun` on `BuildConfiguration` no longer expect an out string parameter, and instead return a `BoolResult` that contains the result and the reason.

### Deprecated
- Class `BuildPipeline` is now obsolete. It has been replaced by `BuildPipelineBase` which is no longer asset based. All build pipeline assets must be converted into a corresponding build pipeline class that derives from `BuildPipelineBase`.
- Class `BuildPipelineResult` is now obsolete. It has been replaced by `BuildResult`.
- Class `BuildStep` and `RunStep` are now obsolete. Class based build pipelines no longer enforce the use of build/run steps. Most interfaces and attributes related to `BuildStep` and `RunStep` are also obsolete.
- Class `BuildStepResult` and `RunStepResult` are now obsolete. They have been replaced by `BuildResult` and `RunResult` respectively.
- Property `BuildPipelineStatus` on `BuildContext` is now obsolete. `BuildPipelineResult` and `BuildStepResult` have been combined into `BuildResult`, removing the need for this intermediate status.

### Removed
- Removed optional mutator parameter on `BuildContext` class.```

#

I kinda liked the asset based setup myself

zenith wyvern Apr 9, 2020, 7:47 PM

#

What the heck, the asset method was so much better

#

More inline with how SRP works now too

dull copper Apr 9, 2020, 7:47 PM

#

yeah, it's a weird move

#

they must have had their reasons

hollow sorrel Apr 9, 2020, 7:50 PM

#

thonking

#

wonder what reason they could have to replace it with code based

amber flicker Apr 9, 2020, 7:51 PM

#

Weird...

opaque ledge Apr 9, 2020, 7:53 PM

#

so platforms 0.3 is not supported for entities 0.9 right ?

#

i guess thats the error i was getting

hollow sorrel Apr 9, 2020, 7:54 PM

#

you're on 0.9 already?

opaque ledge Apr 9, 2020, 7:54 PM

#

yeah, but platforms 0.3 doesnt work

#

i gotta downgrade to 0.2.2

dull copper Apr 9, 2020, 7:54 PM

#

0.2.2 works

zenith wyvern Apr 9, 2020, 7:56 PM

#

Hybrid Renderer still doesn't do great with actual moving entities it seems. When I make my entities rotate the rendering system goes from ~3 ms to ~20ms from having to update renderbounds

coarse turtle Apr 9, 2020, 7:56 PM

#

Hmmm - damn - I liked those build assets ):

zenith wyvern Apr 9, 2020, 7:56 PM

#

Still with 250k entities

opaque ledge Apr 9, 2020, 7:57 PM

#

i mean does it really mean anything tho, in reality you would have a culling and wont update out of camera stuff, i mean thats what happened to me at least

coarse turtle Apr 9, 2020, 7:57 PM

#

Maybe they made the change from an asset to a script to better support CI/CD? 🤔

#

I was curious how to do CI/CD with the asset based one at one point in time - but just speculating

zenith wyvern Apr 9, 2020, 8:00 PM

#

Doesn't seem like it does any automatic culling either, unless I'm missing something. Nothing changes if I turn off the camera

opaque ledge Apr 9, 2020, 8:01 PM

#

yeah it doesnt, you gotta do manually, in changelog it says disablerender component works properly for v2 now

zenith wyvern Apr 9, 2020, 8:02 PM

#

Ahh okay

opaque ledge Apr 9, 2020, 8:03 PM

#

it helps a lot 😄

#

so ecb playback being burstable means sync point will take much less time then ? 🤔

vagrant surge Apr 9, 2020, 8:09 PM

#

@zenith wyvern thats def not too good

#

updating render bounds should be faster than that

#

but still, try moving 250k objects in unreal XD

zenith wyvern Apr 9, 2020, 8:10 PM

#

It's not that bad actually, I was misreading it. It forces the transform system to complete first so it counts that in the overall system timing. The actual render system jobs take around ~8 ms total for this case

#

And this is still in the editor

#

I tried a standalone build and I guess livelink broke it

vagrant surge Apr 9, 2020, 8:12 PM

#

whats the sync overhead in standalone builds?

#

as you saw on the pics i sent, 90% of system time is job system checks

#

is it still that bad on standalone

zenith wyvern Apr 9, 2020, 8:13 PM

#

I'm not sure, I can't profile standalone since it just gives an error about livelink as soon as the player starts and nothing happens

slim nebula Apr 9, 2020, 8:14 PM

#

📎 unknown.png

#

how do I cancel this. do I just terminate the process?

coarse turtle Apr 9, 2020, 8:16 PM

#

that's what I do 👀

slim nebula Apr 9, 2020, 8:17 PM

#

seems to have worked okay

#

entered play mode just fine the second time

glad solar Apr 9, 2020, 8:23 PM

#

Funny... all the erros i got, solved by restarting unity.
It's the 5th time i restart unity and the erros is gone. The project runs fine without any change from before restarting it. 😅

fallow mason Apr 9, 2020, 8:25 PM

#

anyone know what version of dots editor works with the latest entities and hybrid renderer?

#

getting 99 errors for dots editor

glad solar Apr 9, 2020, 8:28 PM

#

@fallow mason check the dependecies.
I had a problem in the past that some packages dependecies conflicts with other packages dependecies. May not be this but check, just in case, y'know.

fallow mason Apr 9, 2020, 8:28 PM

#

ah i see Timboc message earlier about removing. I'll try that

#

like a charm

mint iron Apr 9, 2020, 8:35 PM

#

so we have hybrid renderer v2 now yes? with full URP support!?!?!

warped trail Apr 9, 2020, 8:36 PM

#

i don't know about full URP support😕

zenith wyvern Apr 9, 2020, 8:36 PM

#

Seems to be working as far as I can see

#

From reading the thread it seems like the lighting is still messed up

warped trail Apr 9, 2020, 8:37 PM

#

am i the only one with broken light?🤔

zenith wyvern Apr 9, 2020, 8:37 PM

#

No, they are aware of it. Fix is coming in next entities version apparently

dull copper Apr 9, 2020, 8:38 PM

#

full... no

#

but we have the packages now

warped trail Apr 9, 2020, 8:41 PM

#

😢 Hybrid Renderer V2 will have URP lights support before end of the year

zenith wyvern Apr 9, 2020, 8:41 PM

#

rip

dull copper Apr 9, 2020, 8:42 PM

#

lights, who needs them 🤔

zenith wyvern Apr 9, 2020, 8:44 PM

#

Ah the fixed lighting issue is for HDRP only, I see

#

Bummer

dull copper Apr 9, 2020, 8:46 PM

#

they fixed the lighting issue on HDRP but it's not in this release

opaque ledge Apr 9, 2020, 8:49 PM

#

i am getting EntityContainer error on 0.2.2 😒

dull copper Apr 9, 2020, 8:51 PM

#

DOTS editor isn't compatible

warped trail Apr 9, 2020, 8:51 PM

#

which version of 0.2.2 are you using?😅

opaque ledge Apr 9, 2020, 8:51 PM

#

.7

#

is DOTS editor entity debugger ?

warped trail Apr 9, 2020, 8:52 PM

#

Dots editor is a tool that show you what components your entity will get after conversion

opaque ledge Apr 9, 2020, 8:53 PM

#

.. sounds useless then 🤔

mint iron Apr 9, 2020, 8:53 PM

#

so the plan then would be to use HDRP until the end of the year then revert everything to URP?

dull copper Apr 9, 2020, 8:55 PM

#

well, even HDRP support is iffy atm

#

altho I dunno if there are other major issues atm than the lighting intensity being off

loud matrix Apr 9, 2020, 8:58 PM

#

@wide fiber Thanks for the reply, Unfortunately every other entity is pure ECS, only reason my camera is being converted is I can't find a way to make a pure ECS camera.

naive parrot Apr 9, 2020, 9:04 PM

#

is it necessary to set [ReadyOnly]/[WriteOnly] attributes for ArchetypeChunkComponentType in a Job when the method GetArchetypeChunkComponentType<>( isReadyOnly ) already does it in function ?

slim nebula Apr 9, 2020, 9:04 PM

#

anyone have ideas on how to fix buildstep related errors after updating to entities 0.9.0?

opaque ledge Apr 9, 2020, 9:04 PM

#

are you using platforms 0.3 ?

naive parrot Apr 9, 2020, 9:04 PM

#

how do u get 0.9? 🤔

#

is it out?

#

cant see docs

opaque ledge Apr 9, 2020, 9:05 PM

#

yeah its out

slim nebula Apr 9, 2020, 9:06 PM

#

yes. should I not be using platforms 0.3?

#

tried downgrading to 0.2.2 but ended up with even more errors

#

📎 unknown.png

#

📎 unknown.png

opaque ledge Apr 9, 2020, 9:08 PM

#

yeah i had to downgrade to 0.2.2-7 and remove dots editor package

slim nebula Apr 9, 2020, 9:09 PM

#

ok

#

is dots editor not needed?????

#

is that JUST the entity conversion preview?

opaque ledge Apr 9, 2020, 9:10 PM

#

apperantly something about.. yeah

slim nebula Apr 9, 2020, 9:10 PM

#

so I still get the entitiy debugger without dots editor?

opaque ledge Apr 9, 2020, 9:10 PM

#

which i dont need so

#

yeah, you get entity debugger

mint iron Apr 9, 2020, 9:10 PM

#

look at everyon salivating at the bit

opaque ledge Apr 9, 2020, 9:10 PM

#

dots editor is just for live conversation helper i think

slim nebula Apr 9, 2020, 9:10 PM

#

kk

#

📎 unknown.png

#

thanks!!!

#

0.2.2-9 seems to work too. just had to remove dots editor

opaque ledge Apr 9, 2020, 9:16 PM

#

👍

#

0.3 still doesnt work tho, i think

#

because it was giving error for entities 0.9

slim nebula Apr 9, 2020, 9:17 PM

#

I can confirm that. tried it and 0.3 still broke even without dots editor

formal scaffold Apr 9, 2020, 9:25 PM

#

Hmm so I find myself adding more and more components to my Player, like Speed, JumpHeight, a bunch of Attributes later on. I get the feeling that as my project is growing, so does the count of components. Is that just the normal way of doing it?

vagrant surge Apr 9, 2020, 9:28 PM

#

yes

mint iron Apr 9, 2020, 9:29 PM

#

I think thats the way it goes, you want lots of small components so that when you selectively use them, they're not bringing lots of baggage with them that isnt used

vagrant surge Apr 9, 2020, 9:29 PM

#

but for individual attributes like that, its most common to have them bundled a bit more

#

like, if you allways use speed and jump height, and there arent cases where you have one but not the other, then have them together

#

biggest lunacy ive seen was one guy on the Entitas github commenting he had 3000 components

#

but common games go from few dozen to maybe a hundred or two

formal scaffold Apr 9, 2020, 9:31 PM

#

Cool thanks for the Input, nice to hear that I'm on the right track, thanks

winter depot Apr 9, 2020, 10:09 PM

#

Just trying to confirm, using .WithBurst() is not necessary unless you are modifying burst options, otherwise this is automatically implied correct?

finite ibex Apr 9, 2020, 10:10 PM

#

has anyone come across or created polygons by code in ECS? I don't know which elements to use. Mesh? Mesh filter? All I want to do is draw a square by code

#

not sure what to google to get me help

naive parrot Apr 9, 2020, 10:14 PM

#

if you are just starting with ECS , better to just get hang of basic principles first. if you have done procedural meshes before then , there are native Mesh APIs now afaik to use in Jobs from ECS or even non ECS code.

#

https://docs.unity3d.com/ScriptReference/Mesh.html

#

GetNative*()

#

are the ones you should be looking at

#

@finite ibex

#

https://docs.google.com/document/d/1I225X6jAxWN0cheDz_3gnhje3hWNMxTZq3FZQs5KqPc/edit

Google Docs

2019.3 Mesh API Improvements

Unity 2019.3 Mesh API Improvements Problem: the Mesh scripting API in Unity was done in Unity 1.5 (that’s year 2006!) and has mostly stayed the same. Some non-allocating List functions got added later on (Mesh.SetVertices etc.), but the overall API approach was not changed. It...

#

drawing square ( quad ) in standard way : https://docs.unity3d.com/Manual/Example-CreatingaBillboardPlane.html

#

this is not something DOTS specific but for complex procedural meshes obviously you can gain lots of speedup

eternal ice Apr 9, 2020, 10:22 PM

#

Is there a way to add the MeshRenderer group as hybrid components also tell them to make a static mesh?

finite ibex Apr 9, 2020, 10:23 PM

#

ty @naive parrot! I'm sure something there will guide me

naive parrot Apr 9, 2020, 10:27 PM

#

where did EndPresentationEntityCommandBufferSystem go ?! 🤔

#

doesnt seem to be present in 0.8

zenith wyvern Apr 9, 2020, 10:27 PM

#

They removed it. I guess you can use BeginInit instead

naive parrot Apr 9, 2020, 10:28 PM

#

thats what i have been using. just noticed that. has been gone since 0.3 apparently but docs manual still dont reflect

#

docs team really not doing a decent job keep the stuff in sync with all the changes.

mint iron Apr 9, 2020, 11:15 PM

#

@winter depot correct, it uses burst by default if you don't specify something that would prevent it (StructuralChanges, WithoutBurst etc)

winter depot Apr 9, 2020, 11:33 PM

#

Thank you @mint iron

naive parrot Apr 10, 2020, 12:46 AM

#

why does entity debugger shows weird values for chunk components?

#

calculations turn out all fine but debugger is definitely not showing those values

opaque escarp Apr 10, 2020, 3:39 AM

#

has anyone successfully used WithNativeDisableContainerSafetyRestriction on a DynamicBuffer, gotten through GetBufferFromEntity?
I've tried the exact same stuff but with components instead of dynamic buffers, and it works fine, but as soon as I start using DynamicBuffers I get the traditional same type error

lusty otter Apr 10, 2020, 6:13 AM

#

I have an array of objects that I want entities to process on main thread, I can either do

a simple foreach loop through the array, and for each object in the array I do Entities.ForEach
an EntityQuery to get all the entities, then Job.WithCode and loop through the array and entities inside
Which one is better or there is no real difference?

zenith wyvern Apr 10, 2020, 6:18 AM

#

Hard to say without more context. Can you give a little more detail about what you're doing? @lusty otter

lusty otter Apr 10, 2020, 6:24 AM

#

So I'm making a scriptable rhythm game and entities with TouchComponent want to process touches.

#

The array of objects here being the touches.

#

Because I want to loop these touches in a certain order (order of their time) so it has to be the outer loop, so I can't do Entities.ForEach then loop touches inside.

zenith wyvern Apr 10, 2020, 6:29 AM

#

So your array of touches is being processed by every entity then? Can you do ToComponentDataArray<Touch>(), sort that, then pass it it into a single ForEach of your TouchComponents?

lusty otter Apr 10, 2020, 6:32 AM

#

Ah I didn't make it clear enough, I want to have it that way (touches being the outer loop, entities being the inner loop, and everything not in parallel) for logical reasons.

#

Things like an entity processing the 2nd touch will know that 1st touch has been processed by all entities already, and it can ask them about results of it.

zenith wyvern Apr 10, 2020, 6:33 AM

#

Well, if everything is on the main thread anyways then I guess there's no scheduling overhead to worry about so it shouldn't matter if you're doing a bunch of ForEachs. I would go with whatever is more readable, which it sounds like maybe the first option is

wide fiber Apr 10, 2020, 6:35 AM

#

Can I make a System that runs every 100ms (for example) like InvokeRepeating?
I want it to be "Frame rate indipendent", if a frame takes 200 ms, I want it to be called 2 times (like InvokeRepeating)

warped trail Apr 10, 2020, 6:35 AM

#

@wide fiber yes you can do this

#

but you have to use system group for that🤔

wide fiber Apr 10, 2020, 6:36 AM

#

Ah ok

zenith wyvern Apr 10, 2020, 6:36 AM

#

Isn't that basically what FixedRateUtils does?

#

https://docs.unity3d.com/Packages/com.unity.entities@0.8/api/Unity.Entities.FixedRateUtils.html

wide fiber Apr 10, 2020, 6:36 AM

#

Without system groups would be better

warped trail Apr 10, 2020, 6:36 AM

#

yes, but it is for systemgroup

lusty otter Apr 10, 2020, 6:37 AM

#

Thanks Sark.

wide fiber Apr 10, 2020, 6:38 AM

#

So I have to make a different group for every system that has a different timestep

zenith wyvern Apr 10, 2020, 6:39 AM

#

Or just [DisableAutoCreation] on your systems and have a system that runs every frame and manually updates them as needed

wide fiber Apr 10, 2020, 6:42 AM

#

I want it to be "Frame rate indipendent", if a frame takes 200ms and the system needs to update every 100ms, I want it to be called 2 times (like InvokeRepeating)

zenith wyvern Apr 10, 2020, 6:43 AM

#

Then yeah it sounds like you want to use FixedRateUtils. It has "EnabledFixedRateWithCatchup" which does exactly that

wide fiber Apr 10, 2020, 6:44 AM

#

I could make a system that runs every 2ms and that has a list of all the systems (and their time step) and it updates the correct one based on the time

#

Then yeah it sounds like you want to use FixedRateUtils. It has "EnabledFixedRateWithCatchup" which does exactly that
@zenith wyvern yeah

lusty otter Apr 10, 2020, 6:48 AM

#

Actually, shouldn't the second solution be better?

#

For first solution, each ForEach would need to query a list of entities and get their components for every outer loop

#

But second solution just does it once at the start and that's all.

zenith wyvern Apr 10, 2020, 6:52 AM

#

I was assuming there would not be a ton of these touches to process, so I was more worried about readability with my suggestion

#

If you're worried about performance then yeah option two would definitely scale better

lusty otter Apr 10, 2020, 6:53 AM

#

Okay I'll go with that then

#

I can stomach a bit of not so nice looking code, I guess.

#

😂

opaque ledge Apr 10, 2020, 7:00 AM

#

@opaque escarp You cant have same type in both ComponentDataFromEntity/BufferFromEntity and ForEach query, you have to remove from ForEach query and query for Entity, and access entity's component/buffer like that

zenith wyvern Apr 10, 2020, 7:12 AM

#

Has anyone actually tried using FixedRateUtils? I was just trying it out and It doesn't seem to work for me at all.

#

EnableFixedRateSimple seems to do nothing, EnableFixedRateWithCatchUp just causes the editor to lock up as soon as I press play

opaque escarp Apr 10, 2020, 7:18 AM

#

@opaque ledge You are able to do it with ComponentData provided you use the disable safety restrictions and for restrictions. The patch notes also said that the ability to use them on collections was added at one point, so I assume it not working was a bug and submitted a report

opaque ledge Apr 10, 2020, 7:19 AM

#

Yeah Sark, Druid tried it on but he said it wasnt working properly, or he was doing something wrong 😄

#

@opaque escarp can you post the error ?

opaque escarp Apr 10, 2020, 7:20 AM

#

It's the error you'd expect, can't do stuff to arrays of the same type, that you'd use the restriction disabling for normally

opaque ledge Apr 10, 2020, 7:22 AM

#

well when i encoutered that error i always 'convert' to what i said, so i dont know

zenith wyvern Apr 10, 2020, 7:23 AM

#

It looks like EnableFixedRateSimple does affect the Time.ElapsedTime (and probably dt by extension) that gets reported to that system, but the system still gets updated every frame regardless. Bah

opaque escarp Apr 10, 2020, 7:23 AM

#

well see, pretty sure it's a bug. As you say though, there are ways around it, Thank you

wide fiber Apr 10, 2020, 8:08 AM

#

It looks like EnableFixedRateSimple does affect the Time.ElapsedTime (and probably dt by extension) that gets reported to that system, but the system still gets updated every frame regardless. Bah
@zenith wyvern Sorry if the question may be stupid, but at line 10 it gives me the error: https://pastebin.com/W89S5ZCH

zenith wyvern Apr 10, 2020, 8:10 AM

#

Yeah it wants the actual SystemGroup, not the type. So you would have to do something like World.GetOrCreateSystem<Group2MSFixedUpdate>() instead of passing the type

wide fiber Apr 10, 2020, 8:10 AM

#

Ok

zenith wyvern Apr 10, 2020, 8:10 AM

#

It wasn't working at all for me though. If it's broken for you too you should add your voice to this thread https://forum.unity.com/threads/fixedrateutils-enablefixedratesimple-sets-deltatime-but-update-rate-is-still-the-same.859072/

Unity Forum

FixedRateUtils.EnableFixedRateSimple sets deltaTime but update rate...

Hi,
I am trying to set a fixed update interval for a group.
I use this code in my group:
FixedRateUtils.EnableFixedRateSimple(this, 0.5f);
0.5 means it...

wide fiber Apr 10, 2020, 8:10 AM

#

Ok

#

Yeah, the Unity Editor is freezed when I hit the play button

warped trail Apr 10, 2020, 9:14 AM

#

because EnableFixedRateWithCatchup is bugged 😅

#

this thing is hilarious, as if they don't test things at all

lusty otter Apr 10, 2020, 9:17 AM

#

About editor freezing, I have a script interpreter inside bursted jobs and it freezes all the time.

#

But it runs fine on an actual build.

#

Luckily I can just comment out a bunch of unused interpreted functions during development, which reduces the size and somehow that prevents editor from freezing.

#

I guess it's early development so these are to be expected, but I really didn't expect these many issues 😅

warped trail Apr 10, 2020, 9:31 AM

#

@wide fiber i use this https://pastebin.com/tN6VGs8W

junior fjord Apr 10, 2020, 11:08 AM

#

does there exist something for nativearray serialization?

wide fiber Apr 10, 2020, 11:09 AM

#

Ok ty
@warped trail

scarlet inlet Apr 10, 2020, 11:58 AM

#

Hello, does this code make sense to you to compute the innerloopBatchCount of a parallel job schedule or I got it wrong?

📎 unknown.png

vagrant surge Apr 10, 2020, 12:14 PM

#

nope

#

📎 unknown.png

#

gotta round up

#

couse int division doesnt have remainder

#

check it out, per-batch is 3, 3*4 is 12

#

total work 13

scarlet inlet Apr 10, 2020, 12:16 PM

#

I am not sure how the innerloopBatchCount is used internally

#

my assumption is that it shoudl work with any value > 0 regardless the total number of iterations

#

the code should work out the optimal number of threads to use anyway?

#

in fact I don't even understand why unity doesn't compute the optimal value itself

junior fjord Apr 10, 2020, 12:18 PM

#

I think because of the rounding in your case you could get processorCount + 1 Batches instead of processorCount many

#

that is what vblanco means

#

if I understand it correctly

scarlet inlet Apr 10, 2020, 12:19 PM

#

why should it matter anyway

#

?

#

let's put the question in another way. if I have a total number of iterations < 16, but I return as iterationsPerBatch 16, this should not matter right? Iteration per batch is just a hint isn't it?

formal scaffold Apr 10, 2020, 12:20 PM

#

Been looking into slopes for my character controller. When transitioning from walking up a slope to walking down there will always be an error in which the movement of the player is faster than the gravity pushing him down. I researched a few solutions and what it comes down to is a simple cs croll(right, slopeNormal)

But there is still the initial error in which the player lifts off the ground. My solution would be to account for that and alter the players Position accordingly, I could also increase the gravity until I am grounded again.

I read here a while ago that setting the position directly will cause the Physics System to redraw all colliders. I wonder where I can do some reading on that? How would you tackle the problem?

scarlet inlet Apr 10, 2020, 12:20 PM

#

because if it's not I don't understand it

junior fjord Apr 10, 2020, 12:20 PM

#

well if they all take approximately the same time and start at the same time, then that would double your full time it takes

#

it seems that dynamicbuffer can actually allocate outside of the internal capacity in case you use .Add

            var adjustedCount = Math.Max(kMinimumCapacity, Math.Max(2 * header->Capacity, count)); // stop pathological performance of ++Capacity allocating every time, tiny Capacities

They always double the capacity when you call add and there is not enough space, this is normal for these kind of data structures, but in this case they don't recheck if they are overshooting the internalcapacity with this

#

just thought this is interesting to know since I used Add up to know pretty often, but if you want to stay inside the internal capacity you probably need to resize and treat it as an array

stone osprey Apr 10, 2020, 12:22 PM

#

What is the easiest way to spawn in cubes with the entity component system ?

junior fjord Apr 10, 2020, 12:23 PM

#

in the ecs samples repositories there are a few examples doing exactly that https://github.com/Unity-Technologies/EntityComponentSystemSamples/tree/master/ECSSamples

GitHub

Unity-Technologies/EntityComponentSystemSamples

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

#

@stone osprey

stone osprey Apr 10, 2020, 12:24 PM

#

Thanks ! Is there a easy way to instantiate and convert a gamobject in code ?

#

I only saw examples where you need to attach monos to those prefabs...

#

And those are required in scene already

junior fjord Apr 10, 2020, 12:25 PM

#

let's put the question in another way. if I have a total number of iterations < 16, but I return as iterationsPerBatch 16, this should not matter right? Iteration per batch is just a hint isn't it?
@scarlet inlet it only returns 16 if the total iteration per batch is less then 16, not if the total number of iterations is < 16. If the total number if iterations is < 16 it would also return 16

stone osprey Apr 10, 2020, 12:25 PM

#

Is there a way to spawn in prefabs and than convert them into entites ?

junior fjord Apr 10, 2020, 12:25 PM

#

yes there is a easy command but I don't know it since I never use it

scarlet inlet Apr 10, 2020, 12:25 PM

#

@scarlet inlet it only returns 16 if the total iteration per batch is less then 16, not if the total number of iterations is < 16. If the total number if iterations is < 16 it would also return 16
@junior fjord I know, the question is, does it matter for the parallel schedule?

junior fjord Apr 10, 2020, 12:26 PM

#

sorry I don't understand that question

stone osprey Apr 10, 2020, 12:28 PM

#

@junior fjord Any idea how to find that class/method for spawning in prefabs as entites easily ?

scarlet inlet Apr 10, 2020, 12:29 PM

#

sorry I don't understand that question
@junior fjord never mind I'll do some experiments. I am still trying to understand why I should suggest the innterbatchcount since Unity should be able to figure out itself

junior fjord Apr 10, 2020, 12:32 PM

#

@stone osprey https://docs.unity3d.com/Packages/com.unity.entities@0.0/api/Unity.Entities.EntityManager.html#Unity_Entities_EntityManager_Instantiate_Unity_Entities_Entity_

#

it seems like you instantiate your first entity from a prefab and then just clone that

stone osprey Apr 10, 2020, 12:36 PM

#

@junior fjord Hmm.... and how do i instantiate a entity from a prefab in a easy way from code ? I dont want to use any monos etc.

warped trail Apr 10, 2020, 12:37 PM

#

convert your prefab to entity and store this entity somewhere

junior fjord Apr 10, 2020, 12:37 PM

#

you only need to create one gameobject and add the convert to entity script or not? But I am really not the expert on that, I haven't done it in ages

warped trail Apr 10, 2020, 12:38 PM

#

you can create entity which will store every prefab in some component

#

something like thiscs public struct PrefabReferences : IComponentData { public Entity SmokePrefab; public Entity BulletPrefab; }

vagrant surge Apr 10, 2020, 12:40 PM

#

@scarlet inlet 16 per batch can be low

#

generally wheh batching a parallel for you want both caps on the low end and the high end

#

to not launch a thousand tasks

stone osprey Apr 10, 2020, 12:41 PM

#

Yeah but what if i want to instantiate that prefab from a script ? How do i convert it to a entity without attaching that convert mono ?

warped trail Apr 10, 2020, 12:42 PM

#

you use DeclareReferencedPrefabs

#

put this on you Entity storagecs [GenerateAuthoringComponent] public struct PrefabReferences : IComponentData { public Entity SmokePrefab; public Entity BulletPrefab; }

#

and put your prefabs there

junior fjord Apr 10, 2020, 12:44 PM

#

oh, if you clear a dynamicbuffer, it does not revert to its internal storage if it was pointing outside before?

#

that thing is full of surprises for me 😄

stone osprey Apr 10, 2020, 12:44 PM

#

Thanks ! What if i have about 100 different prefabs ? Isnt there a way to do something like this ? "GameObject test = Instantiate(reference); Entity entity = Conversion(test); )

#

So i instantiate that damn prefab from code and convert it via code ?

junior fjord Apr 10, 2020, 12:45 PM

#

if you want the dynamicbuffer to move back to its internal storage in case it was to large before you have to call clear and trimexcess

stone osprey Apr 10, 2020, 12:53 PM

#

So how do i spawn in a prefab from code and convert it into a entity within the same line ?

warped trail Apr 10, 2020, 12:54 PM

#

@stone osprey i don't think that this is recommended way🤔

#

i think they plan to remove runtime conversion 🤔

#

you can use DynamicBuffer instead of component

stone osprey Apr 10, 2020, 12:57 PM

#

Ok well... so i have the following problem... each "Monster" in my game... ( 100 prefabs ) each one having one mesh, material, animations and a healthbar above... all i want is to convert this shit into a entity... that cant be that hard right ? Pure ecs is not possible i guess due to the animations and the healthbar

mint iron Apr 10, 2020, 1:01 PM

#

Before i would have directed you to runtime conversion but they've said unofficially (one devs comment in this channel) that runtime conversion is not supported. That leaves three options, 1) do it anyway and risk it all breaking later. 2) Come up with your own system to make the entities and then slap a Prefab component on them. 3) Add them in a subscene with a converter that attaches a prefab tag, then they'll show up as prefabs when the subscene is loaded. If you want then, you can index them in a hashmap or whatever so that systems can find the one they need.

stone osprey Apr 10, 2020, 1:06 PM

#

Thanks ! 🙂 So i could either use prefabs for visuals and use the ecs for the data oriented part... the entities would just have a component with a reference to the spawned prefab... or i could write my own implementation ?

mint iron Apr 10, 2020, 1:09 PM

#

do be clear there's no interop between entity prefabs and MB world in this scenario. You setup your MBs like normal as prefabs, but the subscene converts them into pure ECS and the MBs dont exist anymore. (ignoring livelink since it won't work in an instantiated prefab situation)

#

But you're right in that the normal MB/Mesh/Material/Prefab setup can be configured in the editor to define what things look like.

stone osprey Apr 10, 2020, 1:12 PM

#

Alright... is there a other way ? The only reason i choosed prefabs is the attachment of animations and the healthbar... but im not sure if i could draw a healthbar with ecs

mint iron Apr 10, 2020, 1:16 PM

#

not that im ware of, maybe someone else has tried more in that area and can chime in.

stiff skiff Apr 10, 2020, 1:17 PM

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We use gameobjects backed by ECS (keeping the gameobjects)

#

Its not great, but it works

stone osprey Apr 10, 2020, 1:18 PM

#

@stiff skiff So ecs for the data structure and gameobjects for visuals like healthbars ?

stiff skiff Apr 10, 2020, 1:18 PM

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That, and monobehaviours, yes

naive parrot Apr 10, 2020, 1:18 PM

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ecs for simulation , gameobjects for presentation.

#

the only sane combo.

#

atm

stiff skiff Apr 10, 2020, 1:18 PM

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Not really, you can use monobehaviours for "simulation" just fine

naive parrot Apr 10, 2020, 1:19 PM

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i mean if you really have to use ECS

#

in contrast to 'pure' ECS

stiff skiff Apr 10, 2020, 1:19 PM

#

Just wont be as fast, but often thats not an issue

naive parrot Apr 10, 2020, 1:19 PM

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mono/go work just fine for most thing. unity is all about that for most part.

#

i personally am using unity's ecs for its architectural benefits rather than performance speedups.

stiff skiff Apr 10, 2020, 1:21 PM

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Same

#

We've used it to get a clearer "loop" by using the playerloop stuff that ECS uses

stone osprey Apr 10, 2020, 1:21 PM

#

Alright thanks ! I guess we are going with a mix between ecs and gameobjects 🙂

naive parrot Apr 10, 2020, 1:21 PM

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decoupling logic from data is no brainer in complex projects. ecs does it nicely.

stiff skiff Apr 10, 2020, 1:22 PM

#

Things are almost all written in monobehaviours, but if we see a performance issue in part of that, we move only that bit over to ECS

stone osprey Apr 10, 2020, 1:22 PM

#

Btw... does anyone knows how the hell i set the rotation of a entity ? I wanna set a entity mesh to a rotation of 90 dregrees x axis

stiff skiff Apr 10, 2020, 1:22 PM

#

Its much easier to work this way without the developers suddenly having to learn a new way of working

#

Sadly not all of this is smooth, due to the ECS closing off quite a bit of their API. Making it a little hard to bend to my needs

naive parrot Apr 10, 2020, 1:23 PM

#

yep , having only performance critical sims part of codebase is the clear candidate for ecs atm , even down the line when DOTS all round has matured more

safe lintel Apr 10, 2020, 1:23 PM

#

RotationEulerXyz or similar components @stone osprey

naive parrot Apr 10, 2020, 1:24 PM

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@stone osprey whats the issue? access Rotation component and set value calculated using math lib

stone osprey Apr 10, 2020, 1:24 PM

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we tried value = queternion.RotateX(90); that didnt worked... but we didnt used that math lib either

dull copper Apr 10, 2020, 1:25 PM

#

I'm still bit puzzled about Unitys design on the dots safety checks + unity physics

naive parrot Apr 10, 2020, 1:25 PM

#

@stone osprey https://github.com/Unity-Technologies/EntityComponentSystemSamples/blob/master/ECSSamples/Assets/HelloCube/1. ForEach/RotationSpeedSystem_ForEach.cs

GitHub

Unity-Technologies/EntityComponentSystemSamples

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

dull copper Apr 10, 2020, 1:25 PM

#

like, right now if you run physics 50Hz and render 200+ fps, you get warnings that things took too long and it deallocated your tempjobs

#

running physics at fixed timesteps is how this is designed to run even

#

so it feels just so... shortsighted

naive parrot Apr 10, 2020, 1:26 PM

#

tempjobs are 4 frames long arent they..

dull copper Apr 10, 2020, 1:26 PM

#

apparently yes

#

because I see this happen 😄

#

I'm rendering ~200fps in editor

#

and see this only when fixed timestep is 0.02 (50Hz)

warped trail Apr 10, 2020, 1:27 PM

#

and if you run physics at 50 hz but your game runs at 300 fps it is kinda problematic😅

dull copper Apr 10, 2020, 1:27 PM

#

basically you'd need to lock the max framerate based on your physics stepping value

#

never let it go past 4x your physics speed

warped trail Apr 10, 2020, 1:28 PM

#

does it deallocate stuff at runtime?🤔

dull copper Apr 10, 2020, 1:28 PM

#

I don't really have an issue with this myself as I want to run physics at least 100Hz, so soft locking the frames to 400fps is not likely going to cause any issues, especially with HDRP where you don't even reach such framerates until you got 2080Ti and empty scene 😄

#

I dunno about that either

#

if it works at build, then it's not a huge issue

#

but it's not nice that it does that in the editor still

naive parrot Apr 10, 2020, 1:29 PM

#

wouldnt 4x of 50hz be 200fps locked ?🤔

dull copper Apr 10, 2020, 1:29 PM

#

yes

warped trail Apr 10, 2020, 1:29 PM

#

i update mine at 48hz😅

dull copper Apr 10, 2020, 1:30 PM

#

technically you should always update at lowest speed things still behave well

naive parrot Apr 10, 2020, 1:30 PM

#

masterrace aside , whats the end user advantage having that high of frame rate ?

warped trail Apr 10, 2020, 1:30 PM

#

at 24 while testing things🤔

naive parrot Apr 10, 2020, 1:30 PM

#

other of course having reference benchmark for how fast your simulation can go

#

you gotta draw the line somewhere anyway

warped trail Apr 10, 2020, 1:31 PM

#

there is monitors with 300+ refresh rates🤔

dull copper Apr 10, 2020, 1:31 PM

#

yup

#

360Hz

naive parrot Apr 10, 2020, 1:31 PM

#

are there games that can do 360 ?! no the 2D ones i mean

#

doom eternal i know of

dull copper Apr 10, 2020, 1:31 PM

#

those monitors are 1080p

#

so it helps a bit

#

pretty sure doing 360 on CSS is nonisssue with current hardware

#

and those monitors are made for CSS

warped trail Apr 10, 2020, 1:32 PM

#

i guess main idea is to decouple physics from framerate

#

things should work no matter the framerate🤔

naive parrot Apr 10, 2020, 1:33 PM

#

doubt its that straightforward or practical

dull copper Apr 10, 2020, 1:33 PM

#

yeah, that would be the idea case

#

well, it should be

#

if your simulation code is decoupled from rendering, you can render at any speed monitor supports

#

or just how fast the gpu can handle it

naive parrot Apr 10, 2020, 1:34 PM

#

is the physics deallocation issues valid for havoc as well?

warped trail Apr 10, 2020, 1:34 PM

#

if it is not, then welcome to jitterland😂

dull copper Apr 10, 2020, 1:34 PM

#

I don't really know if it's a real issue

#

but we do get the warning spam in the editor

warped trail Apr 10, 2020, 1:34 PM

#

havok is just simulation part

#

they have they own world 🤔

dull copper Apr 10, 2020, 1:35 PM

#

📎 unknown.png

#

📎 unknown.png

#

these slides don't really tell how the queries work though

#

if the queries work on direct ECS data, then it'll mean a lot of potential gains will be wasted on Havok

#

but I don't really know how this is structured

#

(there are gains to be had if you have cache on physics engine even for queries (raycasts, sweeps)

warped trail Apr 10, 2020, 1:38 PM

#

raycasts and queries are not part of havok

dull copper Apr 10, 2020, 1:38 PM

#

then again, Unity specifically said that even Unity Physics is really performant on queries specifically

vagrant surge Apr 10, 2020, 1:39 PM

#

this sort of design can be pretty good on queries

dull copper Apr 10, 2020, 1:39 PM

#

I have not done brute force testing on it yet

#

so can't really talk from experience

vagrant surge Apr 10, 2020, 1:39 PM

#

for unreal i had to create my own physics for some types of queries

#

as having colliders would be too slow

dull copper Apr 10, 2020, 1:40 PM

#

I know physx can do sh*tloads of short queries and you don't even notice

vagrant surge Apr 10, 2020, 1:40 PM

#

the problem in places like unreal, is that all the memory for the queries will be cold in cache

#

vs doing queries from ecs

#

in ECS, you generally are calculating X amount of objects at once, and having a loop that does little more than spam a fuckton of queries

#

so all the inner structures are hot in cache, getting massive gains

dull copper Apr 10, 2020, 1:41 PM

#

For any physics features that do not cache state, e.g. raw collision queries, we expect the performance of Unity Physics to be on par with, or outperform, similar functionality from commercially available physics engines.

vagrant surge Apr 10, 2020, 1:41 PM

#

in oop arch (monobehaviors/unreal), beetween ray and ray, you are doing a ton of other random stuff, on many random objects, so by the time you raycast again, it will be cold in cache

#

@dull copper unity has a big advantage for something like this. It can keep the acceleration structure for the static entities built

#

and only build octree/bvh/grid for dynamic entities

#

and only per-chunk

#

so you can get some crazy fast rays like that

opaque ledge Apr 10, 2020, 1:44 PM

#

4k raycast is taking around 8-10 ms for me, that good ? 👀

vagrant surge Apr 10, 2020, 1:46 PM

#

no

#

not at all

dull copper Apr 10, 2020, 1:46 PM

#

I guess it depends on the raycasts too

vagrant surge Apr 10, 2020, 1:46 PM

#

would need to be some worst case scenario rays

dull copper Apr 10, 2020, 1:46 PM

#

if they are short distance, it's not great

stone osprey Apr 10, 2020, 1:46 PM

#

I wanted to create a component which stores a reference to a gameobject which acts as the visual representation for a entity... any idea if i missed something ? public struct GameObjectComponent : ISharedComponentData { public GameObject representation; }

opaque ledge Apr 10, 2020, 1:47 PM

#

distance is 300 i think, and with proper filters as well

mint iron Apr 10, 2020, 1:47 PM

#

thought u were talking about coronavirus for a second there

fallow mason Apr 10, 2020, 1:49 PM

#

Distance is 6 with N95 filters

#

Well, Unity's units are meters aren't they? So maybe just 2.

vagrant surge Apr 10, 2020, 1:52 PM

#

well 300 meters of rays is a bit too much xD

#

and 4k

#

if they go across the map thats fairly worst-case

opaque ledge Apr 10, 2020, 1:54 PM

#

why would length of the ray affect the performance ? i mean.. isnt ray just a line, so behind the scenes Unity would just run some basic geometery functions for lines and AABB checks ?

#

But yeah i will try to lower to 50-100 later on, right now i am not working on it however

vagrant surge Apr 10, 2020, 1:54 PM

#

because the longer the ray is, the more stuff it has to traverse

#

on unreal engine RTX ambient occlusion implementation, it becomes straight up a slider of how fast the effect is

#

there is a 3x-4x delta depending on how long the AO rays are

#

on short rays (basically like SSAO but higher quality), its pretty cheap, barely more than SSAO, but if you have several meter-long rays, it becomes 2x,3x slower than ssao

opaque ledge Apr 10, 2020, 1:55 PM

#

hmm 🤔

dull copper Apr 10, 2020, 2:08 PM

#

most of my queries are like under 1m in world

#

as a side note, I was wondering (again) why the physics perf is so much worse in the editor (even with all safety checks off)

#

it was the bloody physics debugger script.. I should have known this as I've stumbled to this few times already in past

#

it just doesn't scale at all

#

with 30 dots based vehicles, my game cost like 70ms / frame for cpu in the editor

#

on actual build it's ~4.5ms

#

it does make sense, just wish some day we get more performant dots debug draws

warped trail Apr 10, 2020, 2:15 PM

#

it uses OnDrawGizmos

dull copper Apr 10, 2020, 2:15 PM

#

I'm also limiting workers to 1 on my testing atm

#

but that doesn't affect the physics debugging as it can only run on main thread anyway

#

hmmm, debug draws themselves can run on jobs on 2020.1 tho

#

just not bursted

warped trail Apr 10, 2020, 2:16 PM

#

im using their DebugStream to draw my stuff too 😅

dull copper Apr 10, 2020, 2:17 PM

#

I know the custom solutions, like the one @mint iron made

warped trail Apr 10, 2020, 2:17 PM

#

they use native stream

dull copper Apr 10, 2020, 2:17 PM

#

it's just, it's enough pain to maintain your own code right now

warped trail Apr 10, 2020, 2:17 PM

#

and draw everything in 1 gameobject

dull copper Apr 10, 2020, 2:17 PM

#

then maintain custom physics debugger on top

#

using havok visual debugger didn't make things any simpler, it practically froze the rendering on the editor fully even on simpler scene

#

I must use it wrong as it can't be that bad

#

or maybe it should be used only in actual build etc

#

actually, I'll just try that now

stone osprey Apr 10, 2020, 2:19 PM

#

Entities.ForEach not possible with SharedComponents ? Created a custom SharedComponent and it tells me that this operation is not possible with my component

warped trail Apr 10, 2020, 2:19 PM

#

they allocate nativestreams and then deallocate them in next frame, from here you get your warnings 😅

#

you can use sharedComponents with Run

stone osprey Apr 10, 2020, 2:20 PM

#

When i remove ref, it works... any idea why my shared data component is not acceptable by reference ?

#

Run ?

warped trail Apr 10, 2020, 2:20 PM

#

.Run() on main thread

#

instead of .Schedule()

stone osprey Apr 10, 2020, 2:21 PM

#

You mean on the system that processes those components ?

warped trail Apr 10, 2020, 2:22 PM

#

Entities.ForEach().Run()

stone osprey Apr 10, 2020, 2:23 PM

#

Are you sure ? I cant attach that method call after foreach

dull copper Apr 10, 2020, 2:23 PM

#

the havok visual debugger itself seems to have smooth physics

#

but rendering stalls to 2fps on build when it's attached 😄

#

I must do something very wrong with this

#

(just tested with IL2CPP build)

#

they allocate nativestreams and then deallocate them in next frame, from here you get your warnings 😅
@warped trail oh wow, now I feel stupid again 😄

#

well, at least it gives more confidence on the actual physics sim

stone osprey Apr 10, 2020, 2:31 PM

#

Is there anyway how i can multithread SharedComponentsData ?

mint iron Apr 10, 2020, 2:34 PM

#

yeah thats why i rotate and re-used NativeStream instead of allocating a new one every frame, but to do that the clear method i wrote still has to do far too much work. I should probably re-write it and make it a package.

warped trail Apr 10, 2020, 2:35 PM

#

so you can't reuse nativestream by default?🤔

mint iron Apr 10, 2020, 2:35 PM

#

correct

low oasis Apr 10, 2020, 2:35 PM

#

What the crap does the DOTS Editor package for? The description is infuriatingly vague about what it actually does

warped trail Apr 10, 2020, 2:37 PM

#

it will hold new entity debugger in the future 😂

stone osprey Apr 10, 2020, 2:38 PM

#

Lets say each entity has a gameobject ( visual representation ), how would you make that gameobject follow a entity translation ?

low oasis Apr 10, 2020, 2:40 PM

#

DOTS Editor causes compile errors with Platform and Entities updates. So I can remove DOTS Editor, but I don't know what the crap it actually did in the first place

zenith wyvern Apr 10, 2020, 2:40 PM

#

Is there anyway how i can multithread SharedComponentsData ?
@stone osprey

Nope. SharedComponentData is main thread only.

#

You can change them using command buffers though. Just be aware that every time you change a SCD it's a structural change

stone osprey Apr 10, 2020, 2:43 PM

#

Thanks ! Im doing a hybdrid between gameobject and dots, because each of our monster prefabs comes along with stuff like healthbars etc... :/ hoped theres a way to move gameobjects using jobs

zenith wyvern Apr 10, 2020, 2:44 PM

#

I think that's what HybridComponents will do....I don't know if they're recommended to use yet though

#

@stone osprey https://gametorrahod.com/game-object-conversion-and-subscene/

#

Read about hybrid components in that article, should give you a better idea of how to approach it

stone osprey Apr 10, 2020, 2:46 PM

#

Thanks ! 😄 Not sure if im able to convert my prefabs properly... but im gonna take a look at that

safe lintel Apr 10, 2020, 2:47 PM

#

AFAIK shows the live entity conversion stuff @low oasis

dull copper Apr 10, 2020, 2:55 PM

#

@low oasis DOTS editor hasn't been updated for the new dots packages, hence the errors

#

you don't need it

#

it provides entites live conversion preview if you use DOTS subscene

#

and has checkbox on top of property inspector so that you can add convert to entity script to them with a single click (or remove it )

#

official description is: Provides data analysis and visualization tools that are built on top of the ECS architecture.

low oasis Apr 10, 2020, 2:56 PM

#

so convenience functionality for stuff you can do manually (add the script)?

stone osprey Apr 10, 2020, 2:57 PM

#

Is this a common issue when converting gameobjects to entitys ? https://prnt.sc/rwtxd4

Lightshot

Screenshot

Captured with Lightshot

#

No idea what component couldnt get converted

dull copper Apr 10, 2020, 2:57 PM

#

@low oasis it's mainly about visualizing the entity conversion

#

the script adding is just extra convenience tool, yes

low oasis Apr 10, 2020, 2:58 PM

#

good to know. Don't need it then. That description is pretty much useless. Maybe if they added some screenshots of what it actually does right now. 🤷

mint iron Apr 10, 2020, 2:59 PM

#

@stone osprey sounds similar to this issue: https://gist.github.com/jeffvella/f844cc4aab5b5a9f308e9c27148f5cdf at least prior to the last version it was because some systems were doing stuff for the Animation package when it converted with a skinned mesh.

Gist

gist:f844cc4aab5b5a9f308e9c27148f5cdf

GitHub Gist: instantly share code, notes, and snippets.

dull copper Apr 10, 2020, 3:01 PM

#

@low oasis it's not useless, it would actually be aweseome if we could use it more

📎 unknown.png

stone osprey Apr 10, 2020, 3:01 PM

#

Thanks ! 🙂 Im gonna take a look at this

dull copper Apr 10, 2020, 3:01 PM

#

basically you can see the entity conversion and componentdata in real time there

#

without having to use the clunky entity debugger

#

it's just.. it only works in dots subscenes

mint iron Apr 10, 2020, 3:02 PM

#

Unexpected exception Burst.Compiler.IL.Aot.AotLinkerException: The native link step failed Error while executing command: C:\...PackageCache\com.unity.burst@1.3.0-preview.7\.Runtime\hostwin\lld -flavor link getting this after upgrading, anyone seen it before?

loud matrix Apr 10, 2020, 3:02 PM

#

Ok, I've spent a few days headbutting a brick wall with this issue and I can't find an elegant solution.
I have a camera that's being converted to an entity and it has a component that handles what entity it should follow.
Every other entity is being made with pure ECS when the games bootstrap script runs.
I can't find a good way to link these together without adding extra components just to "name" my entities or running through every single shop / camera to find one with a certain variable set. that just feels very wrong on both cases.
The best idea I currently have is to maybe setup events, fire off an event for change camera target to X entity on X camera, but that will still require me to ID the cameras somehow.
Does anyone have any suggestions for how to do this in a half decent way?

dull copper Apr 10, 2020, 3:03 PM

#

@mint iron that is bit old burst already, maybe worth bumping it to preview.9?

mint iron Apr 10, 2020, 3:03 PM

#

hmmm i just added preview9, must be using old package, ill restart. Some sort of warning about what is required to make the upgrade function, would make this process easier you'd think.

dull copper Apr 10, 2020, 3:03 PM

#

they released .9 along with the other new dots packages

#

yeah, burst requires restart afaik

low oasis Apr 10, 2020, 3:04 PM

#

I usually have to turn off burst, restart and turn it back on to get the cache to not error

#

otherwise it complains about files in the windows tmp directory

dull copper Apr 10, 2020, 3:05 PM

#

you mean when you upgrade it?

low oasis Apr 10, 2020, 3:05 PM

#

but unclear on how to manually wipe the cache

dull copper Apr 10, 2020, 3:05 PM

#

it should sort itself out on editor restart when you upgrade it

#

I often just bump the burst version to new directly from the manifest.json so it can load the new package right on startup

low oasis Apr 10, 2020, 3:06 PM

#

upgrading the burst package has, so far, always generated errors about files in the Windows tmp directory, I'm guessing cache

mint iron Apr 10, 2020, 3:06 PM

#

yeah im just grumping that its a bad user experience, if they know it requires a restart, then tell the user about it. I'm sure its hidden in some document somewhere but it needs to be prominent or every single person is going to hit this, wtf is going on stage.

zenith wyvern Apr 10, 2020, 3:06 PM

#

Yeah when you upgrade burst you need to restart the editor, it's a known issue

dull copper Apr 10, 2020, 3:06 PM

#

yeah, I agree it should have some warning

low oasis Apr 10, 2020, 3:06 PM

#

it sometimes works to just restart, but I've found it just works better to turn it off, restart, turn it on 🤷

#

or it did anyway, maybe that has been resolved

#

one of those processes that you get used to because it works

#

but may no longer be necessary

mint iron Apr 10, 2020, 3:07 PM

#

sorry @loud matrix i derailed your question: https://discordapp.com/channels/489222168727519232/497874303463850004/698186178285010974

zenith wyvern Apr 10, 2020, 3:09 PM

#

@loud matrix You're trying to have a camera follow an entity that you've created at runtime, is that right?

loud matrix Apr 10, 2020, 3:10 PM

#

Yes

#

The following is easy, but assigning it and being able to change it, not so much

zenith wyvern Apr 10, 2020, 3:13 PM

#

Still trying to parse the problem, you have multiple cameras so you can't figure out how to get a reference to the right one?

loud matrix Apr 10, 2020, 3:18 PM

#

At the moment I have a single main camera that's a game object being converted to an entity (as far as I'm aware I can;t make camera with pure ECS)
I need to assign the currently active ship (player controlled) to the cameras follow component at the start of the game, in such a way that it can be easily changed.
The only way i can see to do this is to add a system that loops ships and if it has the "player controlled" variable set to true change the cameras target entity. which wouldn;t be great as it would need to run through every frame on every ship.
The only other way I was thinking to handle it would be with events but I've not fully wrapped my head around them in ECS yet.
I'm thinking I'm probably missing something up by having a variable be what dictates the player controlled ship but as it needs to change I can;t see another way.

zenith wyvern Apr 10, 2020, 3:20 PM

#

So you have something like

struct Ship : IComponentData
{
  public bool _playerControlled;
}

Is that right? You definitely want to just have a Player component that marks which entity is your player so you can easily query for that

#

Then you could do something like

class PlayerFollowSystem : SystemBase
{
  var playerEntity = GetSingletonEntity<Player>();
  var posFromEntity = GetComponentDataFromEntity<Translation>(true);
  // Can't use burst or jobs since it's referencing a monobehaviour
  Entities.WithoutBurst().ForEach((Camera cam, ref Rotation rot)=>
  {
    var playerPos = posFromEntity[playerEntity];
    // Go from here
  }).Run();
}

#

Just one way to do it

#

That will easily handle the case where the player changes at runtime

loud matrix Apr 10, 2020, 3:24 PM

#

Ahh right, I have currently been adding the player controll to all entities

#

so I'd have had to iterate through them to find the one set to active

zenith wyvern Apr 10, 2020, 3:27 PM

#

Yeah you definitely want to just have a player component so you can easily build your player-related systems around that component

loud matrix Apr 10, 2020, 3:29 PM

#

The main issue I'm having I think is how to tell a camera when to change entity. I currently have

struct CameraFollowEntity : IComponentData
{
    public Entity Value;
}

For deciding what Entity needs to be the target, and when set currently camera just sets its self to their position and rotation with an offset.

mint iron Apr 10, 2020, 3:31 PM

#

So you want to be able to detect when the active ship changes, and update the camera target then, rather than checking it every frame somewhere.

loud matrix Apr 10, 2020, 3:31 PM

#

Ideally yeah, as I'm thinking of having multiple cameras trailing multiple ships eventually.

mint iron Apr 10, 2020, 3:33 PM

#

honestly it seems to be a gap in ECS i dont fully understand, the obvious solution to me is some form of event that triggers other logic. I'd love to know what the real recommended DOD mindset solution is. Because to me, just do everything every frame because its super fast anyway is not good enough.

loud matrix Apr 10, 2020, 3:34 PM

#

Events were my recent idea, but I only just started looking into them, and I'm so sued to ultra simple JavaScript evets that doing them in Unity is a bit of a mind twister. So I was hoping to find out if it was a viable solution before diving deep.

zenith wyvern Apr 10, 2020, 3:34 PM

#

An event sounds like the right solution

formal scaffold Apr 10, 2020, 3:35 PM

#

So >_> I'm too dumb to understand this. The "Start" and "End" in RaycastInput refer to a "Start Position" and an "End Position", meaning the "End Position" is NOT relative and an actual Position in World Space. Right?

zenith wyvern Apr 10, 2020, 3:36 PM

#

struct CameraChangeEvent : IComponentData
{
  public Entity oldTarget;
  public Entity newTarget;
  public Entity cameraEntity;
}

Then create a ForEach to handle that component and destroy it after handling

warped trail Apr 10, 2020, 3:36 PM

#

if your entity does not need to know that it is being selected, maybe you can store that information somewhere else?🤔

loud matrix Apr 10, 2020, 3:37 PM

#

Thanks, I'll have a dive into events further. I remember seeing a code monkey video on the topic a while back.

zenith wyvern Apr 10, 2020, 3:38 PM

#

Just try to keep it simple, it's already a lot of boilerplate as is. You don't even need a new system to handle it, you can just add the foreach to your camera follow system

warped trail Apr 10, 2020, 3:43 PM

#

like special entity with component like this, and you can get its current position via cdfe and you don't have to move real entity from chunk to chunk🤔 cs struct ThisIsSelectedRighNow : IComponentData { public Entity entity; }

stone osprey Apr 10, 2020, 3:46 PM

#

One quick question... why does my IDE tells me that "entityQuery.ToComponentDataArray<Translation>();" is not allowed because it must be a reference type ?

north bay Apr 10, 2020, 3:47 PM

#

Because you have to pass an allocator as it's parameter

stone osprey Apr 10, 2020, 3:48 PM

#

Thanks ! That worked ! Is there a similar way for sharedComponentData ?

#

Tried the same for a sharedComponentData component but thats not allowed

coarse turtle Apr 10, 2020, 3:49 PM

#

not that I know of - ISCD are stored as indices, so you grab the ISCD as an index and then access that index to grab the data

stone osprey Apr 10, 2020, 3:50 PM

#

Any documentation on this ? Couldnt find anything about this :/

coarse turtle Apr 10, 2020, 3:52 PM

#

https://gametorrahod.com/everything-about-isharedcomponentdata/

I think sargon's blog should still be relevant for info online, you can also look through how EnittyManager.GetSharedComponentData<T>(index) works through the source code

dull copper Apr 10, 2020, 3:52 PM

#

I'd love a blog like that but so that it would get immediately to the point

#

I can appreciate the time he takes to write those but I really struggle to read them through

coarse turtle Apr 10, 2020, 4:04 PM

#

ah yea I can relate, I had some trouble reading through entirely for a few his blogs

mint iron Apr 10, 2020, 4:10 PM

#

i just noticed today that JacksonDunstans blog has some more articles i havent seen, worth checking out for advanced topics https://jacksondunstan.com/articles/5494

JacksonDunstan.com

jackson

JacksonDunstan.com

JacksonDunstan.com covers C# programming for Unity

coarse turtle Apr 10, 2020, 4:11 PM

#

oh interesting he did a study between switch vs burst function pointers

mint iron Apr 10, 2020, 4:20 PM

#

my project is just flat out crashing the editor on compile 😦

stiff skiff Apr 10, 2020, 4:23 PM

#

@mint iron Oh boy.. now I have to read all of these hahaha

#

Thanks for the share

mint iron Apr 10, 2020, 4:26 PM

#

that virtual functions thing is really interesting, i hit a blocker with something similar because of FunctionPointer<T> being managed but his workaround is nice.

stiff skiff Apr 10, 2020, 4:28 PM

#

I've not dug into any of the burst stuff yet, still much work to be done before I even get to moving stuff to jobs

#

But its nice to read this before hand

fast grotto Apr 10, 2020, 4:35 PM

#

Hi, I just found out about Unity ECS, and I have a simple question. Do I need to inherit from MonoBehaviour?

opaque ledge Apr 10, 2020, 4:37 PM

#

For your datas, you have to make a struct inherited from IComponentData, for your behaviours make a class that inherits from SystemBase

#

i highly suggest following CodeMonkey's tutorials

#

@formal scaffold yes, its not relative, its a position in world space

#

@stone osprey if you are new to ECS, stay away from shared components 😄

wide fiber Apr 10, 2020, 4:56 PM

#

I am building a weapon system, I want the firepoint of the weapon to be a Gameobject (that will be converted to an entity when the game starts)
Which variable type should I use to get the transform of the firepoint and use it in a system?

stone osprey Apr 10, 2020, 5:01 PM

#

@wide fiber I have a similar problem... but in my case i wanna attach a armor piece to the player

opaque ledge Apr 10, 2020, 5:02 PM

#

use an authoring component and put a Transform field in it, in convert method add a component to entity with float3 that has that transform's position.

safe lintel Apr 10, 2020, 5:03 PM

#

could also add a CopyTransformFromGameObject to your gameobject on conversion, then you can use its Translation inside of jobs

wide fiber Apr 10, 2020, 5:09 PM

#

use an authoring component and put a Transform field in it, in convert method add a component to entity with float3 that has that transform's position.
@opaque ledge The weapon (and the firepoint) can be rotated, so I can't use a float3 (with some math I could solve this problem but yeah)

bright sentinel Apr 10, 2020, 5:10 PM

#

Well then you can use a float3 and a quaternion and then calculate the right position/rotation

opaque ledge Apr 10, 2020, 5:11 PM

#

yep

#

this is what i do for my shooting points and raycast points

wide fiber Apr 10, 2020, 5:12 PM

#

could also add a CopyTransformFromGameObject to your gameobject on conversion, then you can use its Translation inside of jobs
@safe lintel the firepoint is child of the weapon that is a child of the player, the player is converted to an entity. The FirePoint will also be converted to an entity (because his parent will become an entity) so I can't add the CopyTransform... component

safe lintel Apr 10, 2020, 5:14 PM

#

use conversionSystem.CreateAdditionalEntity(YourConvertedRootGameObject) to make custom entities for gameobjects you are injecting, and then you can add the child transform via dstManager.AddComponentObject(childTransform) + dstManager.AddComponentData(new CopyTransformFromGameObject())

stone osprey Apr 10, 2020, 5:22 PM

#

Another question from my side... Im using URP for my materials and shaders... when i instantiate a prefab on my own it shows up the way it should... if i convert my prefab into the ecs, its completly black... any idea why this may happen ?

bright sentinel Apr 10, 2020, 5:22 PM

#

@stone osprey Don't think URP is supported by Hybrid Renderer V1

zenith wyvern Apr 10, 2020, 5:23 PM

#

Even with v2 lighting isn't working in URP

warped trail Apr 10, 2020, 5:23 PM

#

welcome to the club😏

zenith wyvern Apr 10, 2020, 5:23 PM

#

Apparently it will be in "before the end of the year"

mint iron Apr 10, 2020, 5:26 PM

#

its like people want to use unity for mobile games or something 😉

safe lintel Apr 10, 2020, 5:27 PM

#

v1 doesnt support ambient light, or lightmapping(it may or may not be completely busted on mobile?) for myself it works but I think its just a coincidence that it does according to what I see on the forums, v2 in its current state doesnt appear to support anything other than 1 directional light 😩

stone osprey Apr 10, 2020, 5:27 PM

#

Oh damn... thanks :/ Guess i need to use my prefabs then...

warped trail Apr 10, 2020, 5:28 PM

#

you can have ambient light in v1 if you disable srp batcher😅

safe lintel Apr 10, 2020, 5:29 PM

#

does that actually work? last time I tried it didnt but it was a while ago and have gotten used to basically shit lighting 😄

warped trail Apr 10, 2020, 5:29 PM

#

i guess there is some issues there, but at least it works in v1

#

in v2 they fixed this, by properly disabling this features😂

safe lintel Apr 10, 2020, 5:31 PM

#

lol

wide fiber Apr 10, 2020, 5:31 PM

#

(Which line is the problem, the set component or the instantiate?: https://pastebin.com/GZPZQz0w)

warped trail Apr 10, 2020, 5:32 PM

#

you need .WIthStructuralChange() if you use EntityManager

safe lintel Apr 10, 2020, 5:32 PM

#

whats the problem?

warped trail Apr 10, 2020, 5:32 PM

#

or use entity command buffer

wide fiber Apr 10, 2020, 5:32 PM

#

@warped trail ok ty

#

whats the problem?
@safe lintel the error is at the end, after the code

warped trail Apr 10, 2020, 5:33 PM

#

i guess it is better to use ecb now, when it is bursted 🤔

safe lintel Apr 10, 2020, 5:33 PM

#

oh 🙂

warped trail Apr 10, 2020, 5:33 PM

#

we need more tests 😏

bright sentinel Apr 10, 2020, 5:34 PM

#

Does SetComponentData also need ECB? 🤔