#archived-code-advanced

1 messages · Page 91 of 1

lilac lantern
#

The process is an operating system concept and a domain is a .net concept, right? A process can definitely have multiple domains. I’m not familiar with how starting processes work work on an operating system level though so I’m not sure how it works, but i know it is possible.

upbeat path
#

wrong. An Application domain is a Windows concept, an Application can only have 1 domain, You may have many processes (Not threads or Tasks) and each one will be in it's own domain

#

and, btw, Unity does run inside a .Net environment if you build using the Mono backend

lilac lantern
hazy cobalt
#

im paying someone nothing to make multiplayer

bleak citrus
#

invoking System.Environment.Exit just freezes the editor for me. Does it not do that on your end?

#

(i have not tried it in a build)

lilac lantern
bleak citrus
#

I am a little fuzzy on the relationship between Unity and .NET application domain(s)

#

also, Application.Quit can take an exitCode parameter, which might sidestep this whole issue (:

lilac lantern
#

Yes it would, i somehow didnt know it could take an exit code. Just more proof that you don’t have to know everything about something to know anything about it…

bleak citrus
#

I didn't either!

gentle yew
#

Small update on this.. Unity seems to apply the UTF8 encoding before returning a stream of bytes. This is not mentioned anywhere in the documentation. Just wondering so I know for the future cases, is this considered general knowledge? Do backend requests that return a stream of data generally apply the UTF8 format before sending it?

dusty wigeon
# gentle yew Small update on this.. Unity seems to apply the UTF8 encoding before returning a...

Isn't UTF8 only the way you interpreted byte ? If your Byte does not conform to a UTF8 string, then you would get garbage when you try to convert it. Usually, you specify the format when you encode and when you decode. See StreamWriter and StreamReader for more information.

https://learn.microsoft.com/en-us/dotnet/api/system.io.streamwriter?view=net-8.0
https://learn.microsoft.com/en-us/dotnet/api/system.io.streamreader?view=net-8.0

patent bear
#

Is there any way to pass an environment variable to unity on the command line? I have a build machine that has a system user running a Jenkins service. A required environment variable isn't visible inside of one of the methods being invoked on the command line. This is after setting the environment variable in the power shell script that invokes unity, as well as using EnvInject.

My current work around is simply running the service as the main user on the computer that has the environment variable already set. This works for now, but might be an issue later on where I need to override the value of that environment variable based on what project is building.

dusty wigeon
bleak citrus
dusty wigeon
bleak citrus
#

Oh, I misread what you wrote

#

I thought you said "isn't it the only way to interpret bytes?"

#

that makes a lot more sense now lol

patent bear
# dusty wigeon I image standard windows c# code should the trick.

I'd like to keep any environment variable swaps outside the project since this is specific to the build machine. I already attempted seeing the variable in the PowerShell script but it doesn't seem to carry over consistently.

The variable itself is a path to an SDK toolset.

dusty wigeon
patent bear
#

I was hoping to use the env var directly inside the build script as I have been rather than adding additional tooling to pass the ask path via arguments. That's looking less and less likely the more I look around, unfortunately.

#

The main issue is that the variable is user level. System level variables are fine and EnvInject works to a certain extent. Builds succeed (unity also requires the env var to be set) but my own calls to invoke some SDK tools fail because it's looking for the variable user side and the user is system level.

dusty wigeon
tired fog
#

I've been working on package that heavily relies on command buffers. I wanted to transfer and have support with URP and HDRP later on, but I know that the workflow is not the similar. To have minimal changes and keep a more united codebase, does anyone have any idea on how I could do it? I know for shaders it's easy enough by rewriting the whole shader, having the same name, and including a unity package on the asset for URP shaders. But the problem is that the command buffers are interconnected with my codebase, meaning that doing the same equals to rewriting the whole package. And changing one thing on built in could end up being a lot of work on URP or HDRP.

dusty wigeon
shrewd bear
#

So I'm having an issue with the AssetDatabase query in code.

AssetDatabase.FindAssets("t:scene (init or patch)")

This doesn't work in code, but does work as a query using the editors search.

AssetDatabase.FindAssets("t:scene init")

In code if I get rid of the OR it works fine. Is there a bug with using OR for the query in code?

dusty wigeon
tired fog
little stratus
#

Not sure why my code wont do the same thing in the negative z axis which is on the left side of this cube

#

Issue is solved now

twilit grove
#

I am currently making a scriptable object, which has to display the
[Serializable]
public struct AbilityData
{
public string title;
public string cooldown;

public string UID;
public string script;

public Color titleColor;
public ItemType type;
public Sprite sprite;
public string[] attributes;

public TooltipDataTitledDescription[] titledDescriptions;

}
class onto a gameobject, which I am using as a prefab because thats the only way to access something through a scriptableobject.
However, when I call this function
public override void AddData(object data)
{
AbilityData tooltipData = (AbilityData)data;
print("Adding data from " + tooltipData.title);

 title.text = tooltipData.title;
 title.color = tooltipData.titleColor;
 type.text = tooltipData.type.ToString();
 image.sprite = tooltipData.sprite;
 cooldown.text = tooltipData.cooldown;
 UID.text = tooltipData.UID;

}
which writes data onto the object, it works, but only sort of. The prefab view doesnt update and doesnt even realize its been changed! Its a really weird thing and IDK if theres a better way to do this, please help?

#

do i need to write something like a custom-treated scene just for viewing the properties of abilities? i would actually love to do this ngl it sounds fun

tropic vigil
# twilit grove I am currently making a scriptable object, which has to display the [Serializab...

If you mean to edit the prefab instance, you'll probably need to set your changed elements dirty or record your changes in prefab:
https://docs.unity3d.com/ScriptReference/EditorUtility.SetDirty.html
https://docs.unity3d.com/ScriptReference/PrefabUtility.RecordPrefabInstancePropertyModifications.html
If you mean to edit prefab in your assets, then things get more complicated. Keep in mind that the prefab preview doesn't show the state of your prefab - it is just the temporary state of its copy. Depending on your choice you can later discard it or save it. In other words - if you're modifying the file itself, the changes won't be visible in the preview until you reopen the file. So always make sure you're editing the correct object.

twilit grove
#

I thought the AddData() Function would write the the prefab preview, but it looks like it writes it to the file instead. How can I change it to write to the prefab preview?

#

if (GUILayout.Button("Select"))
{
Unselect(myTarget, myTarget.editing);
Undo.RecordObject(myTarget, "Selected Ability " + title);
myTarget.editing = i;
myTarget.abilityTooltipS.AddData(myTarget.abilities[i]);
}
For reference, here is where I write AddData:

tropic vigil
# twilit grove I thought the AddData() Function would write the the prefab preview, but it look...

To modify currently opened prefab you need a reference to its instance. If the object is currently selected in the Hierarchy window, you could simply access it with Selection.activeGameObject;. Alternatively, if you've opened the prefab via code, you can store the reference to it. There is also the option of getting the reference of the currently opened prefab via PrefabStageUtility.GetCurrentPrefabStage().prefabContentsRoot); (assuming you've it opened in a Prefab Stage).

twilit grove
#

so when I save the scene it applies the changes... How do I Do this in the AddData function?

twilit grove
#

welp

#

I just put [SerializeField] infront of the
public AbilityTooltipS abilityTooltipS;
line in my code and it allows me to (temporarily) pick a gameobject instead of a prefab, ignoring all of this finicky nonsense.

#

I know that this is "bad practice" normally, but for my situation, i view this as perfect

  1. I ignore all finickyness
  2. With prefabs, things can get deleted and the connection between the SO and the object is not stable, which can delete (and has) deleted objects in the past.
  3. I do not need the AbilitiyTooltipS to persist through even scene changes, only need the reference which i can reassign at any time.
tired fog
#

I need some ideas on how to approach this, I have a terrain texture, and I sample from it on a shader. I use GPU instancing, so for all of the meshes on that terrain the share the same terrain texture. And If I have to use another terrain texture, i need to make a separate draw call with a new terrain texture. I would like however to unify this.

#

What could I do to configure the shader so that in a simple draw call each knows which terrain texture to use?

#

Ideally without adding to much memory size. I've been managing so far fine with a single int. One idea is to transform the textures into a texture2d array and then pass also an int index with the draw call to know which one to sample, but that means doubling the amount of memory

#

is there any low precision int value that has less memory size? normally it would go from 0 to 6 in extremely worst case, a whole int seems too much

sage radish
tired fog
#

Mmm, i could look into that, thanks!

#

I have another problem

#

If I do

RenderParams renderParams = new RenderParams(lod.materials[lm]){
    camera = cam,
    matProps = propertyBlock,
    receiveShadows = true,
    shadowCastingMode = CastShadows? ShadowCastingMode.On : ShadowCastingMode.Off,
    worldBounds =  new Bounds(Vector3.zero, 10000*Vector3.one),                            
};
                            Graphics.RenderMeshIndirect(renderParams,lod.mesh,CommandBuffer,1,submeshCounter*sizeof(uint)*5);

it doesn't work

#

but if I do

Graphics.DrawMeshInstancedIndirect(lod.mesh, lm, lod.materials[lm], terrain.meshResult.settings.meshBounds, CommandBuffer, submeshCounter*sizeof(uint)*5,propertyBlock, ShadowCastingMode.Off, false);

it does

tired fog
sage radish
#

I've had problems getting the new RenderMesh methods working. It might not support built-in RP.

tired fog
#

oh no

sage radish
#

But it's fine to use the old methods, they're not going anywhere anytime soon.

tired fog
#

I just wanted to have one single code base, why do they make it so haaaard to support urp ,hdrp and built in... 😦

hallow creek
#

How do we add depth to a top-down game in Unity? (like jumps and stuffs)
I am thinking of adding z_value into consideration, making the y_value that appears on the screen = y_grounded_value + some_coefficient*z_value. But since this would complicate the position calculation of Unity, I want a more neat solution.
How do we implement this? Im also thinking of customizing the get_position() function of Unity so the new way of calculating the position wouldn't break the physics interaction. can we change unity rendering code?

tired fog
#

If you want to encode data in less than

errant thorn
tropic vigil
tired fog
#

How can I make a dynamic texture 2d array? Xd

livid kraken
#

Dynamic how ?

tired fog
#

I don't know the length of it, it should be more like a texture2D list

little stratus
#

I finally made this greedy meshing voxel thing using dictionarys which people told me not too for some reason lol

hallow creek
#

and transfer everything to 3d?

livid kraken
tired fog
livid kraken
#

As far as I know the limit for textures in a texturearray is 1024 so if you need more then you can work with a List<Texture2DArray>

regal lava
tired fog
gentle yew
#

I'm using the following

// Encode the token in base64 format as "username:accessToken" where username remains empty
var authTokenBytes = Encoding.UTF8.GetBytes($":{accessToken}");
var authToken = Convert.ToBase64String(authTokenBytes);

using var requestMessage = new HttpRequestMessage(HttpMethod.Get, url);
requestMessage.Headers.Authorization = new AuthenticationHeaderValue("Basic", authToken);

var response = await httpClient.SendAsync(requestMessage);
var responseBody = await response.Content.ReadAsByteArrayAsync();
return responseBody;

to hit a /content endpoint in Unity's CCDN on a private bucket (https://services.docs.unity.com/content-delivery-client/index.html#tag/Content/operation/GetContentPublicEnv). However, I'm getting an error saying that I'm unauthenticated? Adding the Authorization header in postman works fine, but in c# it's like it's not being added at all? I even printed out the header before calling SendAsync and it's there... I've been stuck for some time, anyone have a clue what might be missing here?

Unity Services Web API docs
#

This code is deployed as a module in Unity's cloud, so there's no way to use a proxy on this or anything unfortunately

fresh salmon
#

Hm are you supposed to include the : in the encoded base64?

gentle yew
#

I even found a forum post confirming it

fresh salmon
#

That line is also contradictory to the comment above, it does not include the username

gentle yew
#

I've even compared what postman is doing, and we're sending the same header, so the token itself should be valid 🤷‍♂️

fresh salmon
gentle yew
hallow creek
#

create 2 empty objects for player, one for shadow which holds the grounded position of player and another object for rendering the character in the air

merry niche
#

Does anyone know a way to set the property "providesContacts" of a mesh collider to true without the mesh renderer needing to be convex?

shrewd bear
#

What happens if you call LoadAsset() on an asset bundle multiple times?

bundle.LoadAsset<GameObject>(assetName);

Does it create multiple copies in memory or is only one copy ever loaded?

sinful hamlet
#

`` /// <summary>
/// Registrierung Username & Password
/// </summary>
public async Task RegisterWithUserNamePassword()
{
try
{
await UnityServices.InitializeAsync();
await AuthenticationService.Instance.SignUpWithUsernamePasswordAsync(m_RegisterUsernameInputField.text, m_RegisterPasswordInputField[0].text);
Debug.Log("SignUp is successful.");
}
catch (AuthenticationException ex)
{
Debug.Log(ex.ErrorCode);
}
catch (RequestFailedException ex)
{
// Compare error code to CommonErrorCodes
// Notify the player with the proper error message
//Debug.LogException(ex);

    }
}``

How can I change the error ?

abstract folio
acoustic vortex
graceful widget
#

I have a strange problem, game does only work in editor, doesnt work when built, it looks like from debugging that the Camera Manager would never call the SetupPlayerVirtualCamera() I can go voice chat if that would help

Camera Manager

private void OnEnable()
{
  playerTransformAnchor.OnAnchorProvided += SetupPlayerVirtualCamera;
}
private void Start()
{
  if (playerTransformAnchor.isSet)
    SetupPlayerVirtualCamera();
}```

Player
```cs
public override void Spawned()
{
  if (Object.HasInputAuthority == true)
  {
    playerTransformAnchor.Provide(transform);
  }
}```

playerTransformAnchor
```cs
public class RuntimeAnchorBase<T> : DescriptionBaseSO where T : UnityEngine.Object
{
    public UnityAction OnAnchorProvided;

    [Header("Debug")]
    public bool isSet = false; // Any script can check if the transform is null before using it, by just checking this bool

    [SerializeField] private T _value;
    public T Value
    {
        get { return _value; }
    }

    public void Provide(T value)
    {
        if (value == null)
        {
            Debug.LogError("A null value was provided to the " + this.name + " runtime anchor.");
            return;
        }

        Debug.Log($"{name} runtime anchor provided with {value.name} transform and OnAnchorCallback {OnAnchorProvided != null}");
        _value = value;
        isSet = true;
        Debug.Log($"value set to {_value} and isSet to {isSet}");

        OnAnchorProvided?.Invoke();
    }

    public void Unset()
    {
        _value = null;
        isSet = false;
    }

    private void OnDisable()
    {
        Debug.Log($"RuntimeAnchorBase OnDisable");
        Unset();
    }
}
#

this is mostly the code used in CHOP CHOP

#

It looks like the OnAnchorProvided is not connected to the method (it's null on SO)

#

the event is raised tho

dusty wigeon
graceful widget
#

So Event channels would be okay?

dusty wigeon
#

Simply use singleton.

graceful widget
#

Thats what i thought

sweet delta
#

Hello, there is a challenge I don't even know how to begin thinking about. I want to simulate the earth wobble or planetary precession movement. Essentially, imagine an object that is tilted at an angle to the Y axis. The movement that I want is a rotation of the y-axis around the world's y-axis, thereby creating a wobble. Any ideas how to do this?

#

https://en.wikipedia.org/wiki/Precession like this

Precession

Precession is a change in the orientation of the rotational axis of a rotating body. In an appropriate reference frame it can be defined as a change in the first Euler angle, whereas the third Euler angle defines the rotation itself. In other words, if the axis of rotation of a body is itself rotating about a second axis, that body is said to be...

#

I only want to simulate this movement, I don't care about the physics at all.

sweet delta
#

I figured it out

# 
using System.Collections.Generic;
using UnityEngine;

public class Precession : MonoBehaviour
{
    public float precessionSpeed = 1f;
    public float precessionAngle = 5;

    // Update is called once per frame
    void Update()
    {
        float currentAngleX = precessionAngle * Mathf.Sin(precessionSpeed * Time.time);
        float currentAngleZ = precessionAngle * Mathf.Cos(precessionSpeed * Time.time);

        transform.rotation = Quaternion.Euler(currentAngleX, 0f, currentAngleZ);
    }
}
steady imp
#

Good morning. I use an old plugin (from 2012). I managed to make a complete game with it. But when I use a version of Unity higher than 2021 or I have new packages, sometimes I get this when I click on the plugin and I don't know how to fix the problem. (Don't support in dynamic module)

Capture_decran_5936.png
golden girder
#

does anyone have a good first person movement script???

wet burrow
#

Is it possible to nest other asynchronous tasks inside an AsyncOperationHandle, so it runs before whatever the main function is? I tried turning it into a Task but there's a heap of code that specifically relies on it being an AsyncOperationHandle, and I haven't yet figured out why it has to be that way

#

I'm running a function to load an addressable asset, and I want to ensure Addressables.LoadContentCatalogAsync() always runs first to retrieve the right catalog, by putting them into a single function so they run together

timber flame
#

In 2d side management games like mom simulator, do you prefer to use animator to play animations or not?
There are many animations in these games.
Also, suppose we use spine
Can we mix between two animations and blend them through animator? Animations as I mentioned are created in spine.
Blending like face gesture and expressions

acoustic vortex
#

does anyone knows to get fix scenes "not loaded" "is loading" error?

flint sage
#

Wait until it's loaded?

acoustic vortex
#

i mean during the loading the cinemachine confiner2d is disabled and all audio sources are cut

#

which is ugly

timber flame
#

thanks but I would like to know if I choose mecanim, can I blend layers?

#

They said it is recommended to use skeleton animation instead of mecanim

#

In the Spine Editor, you need to create an animation (the "empty" or "mix-out" animation) that keys the same bones as your to-be-mixed-out animation (in this case, as the shoot animation). Basically you need any other animation playing that keys the bones again, otherwise the previous animation's state will not be overwritten by anything and left as-is.

Unfortunately these limitations are cumbersome, which is why we recommend to use SkeletonAnimation instead of SkeletonMecanim if possible. Another solution would be to use a Mecanim-wrapper workflow as shown in the example scene Spine Examples/Other Examples/StateMachine SkeletonAnimation/Mecanim Logic SkeletonAnimation View.

hallow creek
#

what is the Supreme way to break up your code professionally?

#

I have watched a tutorial on it but it is just seperating the codes into different files

dusty wigeon
#

There is theory such as Coupling vs Cohesion and Solid principle that should help you find out about why and how to have a more maintanble code.

hallow creek
#

There is one that breaks the code into Movement Script, Combat Script and let them communicate through Main Controller. but I find a lot of flaws with it considering lots of action requires to take both Movement and Combat into account

tiny pewter
#

then dont follow it

hallow creek
#

StateMachine is just an amazing idea to split the codes for example

#

Im finding similar structures to StateMachine

dusty wigeon
dusty wigeon
#

You have simplier variation such as Strategy Pattern.

somber pendant
#

I needed to include an external dll in my project so i stuck it in Assets/Lib

#

i get this error nonstop now

Loading assembly failed: "Assets/Lib/System.Drawing.dll"

#

the scripts work fine otherwise

#

unity just complains

#

can i suppress that?

#

i don't see any import settings to make it load nicely

somber pendant
#

worst case, i will just live with this error since it seems purely cosmetic and only happens in editor

upbeat path
somber pendant
#

idk, this open source library i'm using requires it

#

i might have to just surgically remove it from the code which is annoying

upbeat path
upbeat path
somber pendant
#

hrm, i saw something on stack overflow saying i could just stick dlls in assets. maybe that was an old/dumb post

#

it's a Targa output library but i guess it uses some color structs from system.drawing for certain use case

upbeat path
#

Actually it does seem the the Plugins folder requirement has been removed in recent Unity versions, so ignore me

somber pendant
#

i'm using a slightly older unity version, i'll have to check and see

upbeat path
bleak citrus
#

yeah, I'm unclear on what it actually does

#

it might affect compilation order

upbeat path
#

I've always used Plugins, there used to be just one
Assets/Plugins
but now you can have many
Assets/.../Plugins
Assets/.../Editor/Plugins
so Editor/Plugins do not get included in the Build
what I particularly like is
Assets/.../Plugins/WebGl
where Plugins and Plugins/WebGl contain the same .dll but just compiled differently
The Build platform decides which one to use

misty glade
#

Need some thought-solutionizers. I have a game brewing that has a gesture to execute a move (swipe up to move up, for example). I'm doing this via IPointerDown/Up handlers, keeping track of the amount moved, and moving after the Up is received and the gesture is greater than a threshold amount. I'm then playing a sound effect (like a "whoosh") in addition to any of the other moves. It works great...... but feels laggy. I've already eliminated as much dead space from the SFX as possible, converted the mp3 to ogg (I heard there was some latency when using mp3 based sfx?), but it still mentally feels sluggish.

I'm thinking that I might be wanting to do some gesture prediction and play the SFX before the user has finished the gesture, since 99% of the time the gesture will go through to completion, but in the 1% - the user is going to hear the whoosh before lifting their finger. Maybe I could start the SFX and if they don't lift their finger before some amount of time (0.1sec?) I cancel the SFX?

Any thoughts?

#

(as far as the audio tech - I'm basically just using PlayOneShot(), not using any aftermarket stuff like FMOD)

sly grove
cursive horizon
misty glade
#

yeah, the swipe sound

cursive horizon
#

i think as soon as they touch, it should make some sound

#

and that sound should last as long as they are holding

misty glade
#

hm.. not sure if loopable would work..? you're thinking like an "engine rev" kind of loop?

#

like finger press whsssssssssssssssssssss fingerup oosh

#

Never thought I'd be typing out sound effects to describe a problem ... lol

cursive horizon
#

well you're doing a good job of it! yeah that's what i'm thinking

#

some kind of visual feedback when you touch might be nice too

misty glade
#

ooh, that's an idea, too.. maybe like particles emitting from the touch point

cursive horizon
#

it's a little weird because you aren't touching anything in particular, so what should react? but i think if the board got a little sharper or something to show that you've 'got' it, that could work

misty glade
#

(emission rate increases as you get farther from the origin?)

cursive horizon
#

worth a shot, i might worry that particles coming from where they are clicking makes it seem like that location is important in some way, when really it seems like they are 'grabbing' the whole board

#

but if it did like a slight tilt or something it might be cool

misty glade
#

🤔 I could also experiment with "gesture trails" which might look nice

cursive horizon
#

oh yeah that too

misty glade
#

or haptics when you initiate a pointer-down

#

i think the haptics might be annoying though

cursive horizon
#

might be kind of distracting if the result 'drawings' themselves don't matter

misty glade
#

i struggled to get them working properly before

cursive horizon
#

yeah i don't know much about that but i think it might get annoying eventually

misty glade
#

one of the core problems of games with this sort of interface is your finger often blocks what you want to see.. particle vfx and stuff at the touchpoint are often hidden by fat fingers

cursive horizon
#

yeah

#

i'm thinking about games with similar interactions which i've played and i don't play mobile games so there aren't many, but i'd have a look at how candy crush and threes handle their similar drag interactions

#

they just tend to be more 'drag this thing' and less 'drag the board'

misty glade
#

i have Royal Match on my device and there's 0 feedback

#

but it still works 🤷

#

I'll play around with it.. i like the 'engine-rev' idea, I'll give that a whirl

#

might be hard (for me) to get an sfx "finish" sound that connects seamlessly with the start

cursive horizon
#

aye that part requires audio knowledge which i definitely lack, but i'm imagining the swipe being a fairly steady sound so that where you cut it off isn't such a big deal, and then if the ending is punchy enough (a little pop or something) maybe that works

misty glade
#

aye.. what I worry about is the complexity.. since there probably is a different "attack" than the looping part, so it basically requires 4 sfx, "attack", "loop", "finish", and "finish-cancel"

#

and I gotta get them all to blend seamlessly

cursive horizon
#

you might be able to get away with not doing the cancel case and see how it feels

misty glade
#

I might try the "assume they're going to complete the gesture and play the sound and cancel it if they don't finish the gesture within 0.03 sec"

cursive horizon
#

since mostly that won't happen

misty glade
#

yeah

cursive horizon
#

especially given that other games seem to do even less, that seems like a good place to start to me and then see how it plays

misty glade
#

honestly once you figure out the game you don't actually do the "click and drag and think" thing.. honestly I put too much time into architecting that 😛

cursive horizon
#

look finishing games is for chumps, it's all about spending years solving random edge cases and building tools that don't get used catok

misty glade
#

like I keep track of where you are in a "X" shape (where the cross is at the origin) and drag the tiles in a preview a few pixels.. it works nicely but turns out to be almost completely unnecessary beyond the first 30 seconds in the app

#

haha right?

uneven juniper
#

Don't know if server related question are for this channel, but here goes.
Im trying to run a dedicated server from a linux machine to host on multiplay, but i cant connect to the server , i tried doing the same on a windows dedicated server and it did work, the problem seems to happen when I try to run the server on a linux machine ( im using centOS9 on a vm that is portforwarded)

misty glade
#

depends on how you create the VM - if you're using something like docker then you have to add the ports to open in the dockerfile

#

(expose 49855 opens that port on the vm)

scenic forge
misty glade
#

Finger release? yes.. why? I'm not sure I understand the question

#

versus what

scenic forge
#

Swiping gestures in most apps don't require you to release to get triggered, and I would think requiring release plays a big part of why it feels sluggish.

misty glade
#

Oh, triggering the move after some threshold + time has been reached to identify the gesture?

#

I'm not using "gestures" per se - rather just keeping track of origin/distance on pointer down/up

scenic forge
#

Typically minimal velocity and distance threshold feels good to me.

misty glade
#

We did try that early on but it felt like it did the move before you meant to.. there's actually a lot of science and math in gesture identification, and me trying to roll my own for that ended poorly. I'm pretty sure there's some gesture libraries in the marketplace but the current solution (audio aside) is pretty good for us so we didn't pursue it

#

We don't have a need for any other "gestures" aside from swipe in a NESW direction

scenic forge
#

Sure, but that's just my experience from using swiping in pretty much all apps, especially social media apps with their tabs and you swipe horizontally to navigate between them. None of them requires releasing for the gesture to trigger.

#

You might need to play with the two threshold values a little bit, if it felt too eager that means the values were too low.

#

Presumably this game is also for mobile, another fancy thing you can do is to dynamically relocate the starting position as user keeps holding down their touch. This will allow player to hold down touch and continuously move in different directions without ever needing to lift up their finger every move.

misty glade
#

so.. bad use case but I just tried tinder (lol) and it required a pointer-up event to finish the event

cursive horizon
#

that sounds right to me...i don't know if there's really a 'right' answer but for a game i would go with what feels the most interactive and tactile

exotic trout
#

Anyone know of a way to access objects in a newly additvely async loaded scene before the contents of the scene do oneanble/awake?
I was looking at AsyncOperation.allowSceneActivation but that doesn't give me access to the "preloaded" scene right

scenic forge
#

Yeah different designs have pros and cons for sure, but if responsiveness is crucial then not requiring the release to trigger is definitely something to be looked into. In almost all mobile rhythm games, swipe/flick notes trigger by distance/velocity without requiring release, and being responsive is the core of rhythm games. And yes similar techniques like trimming the leading silence (even the few milliseconds) in SFX audio are also used, but I think there's a good reason why all rhythm games go for that design for swipe/flick notes.

urban warren
#

So I was looking at source generators again to make using SerializedProperties easier. My thinking was if I could have something like class PropertyData<T> {}. And do something like:

PropertyData<SomeClass> someClassData = new PropertyData<SomeClass>();

someClassData.FooSerializedProperty.floatValue = 5;

Where the SG would find all the serializable fields and make properties for accessing the SerializedProperties.

But I think I have it a bit twisted around and it can't work like that... right. Unless I put every field inside of PropertyData<>. So ideas on different ways to achieve this sort of thing?

scenic forge
#

Does PropertyData has to be generic and you access a particular class via that?

#

A potential alternative would just to generate a SomeClassPropertyData class with all the stuffs in it.

urban warren
#

My thinking was basically to provide any type and it would generate the serialized property accessors for it.

#

Yeah could do a type per, maybe that is the only way while avoiding magic strings. Just feels a bit... messy I guess?

scenic forge
#

There are different approaches you can take, mostly depends on which one you find convenient for your use case.

#

One approach is that you can put a [GeneratePropertyData] attribute on SomeClass, and SG looks for that attribute and generates the corresponding SomeClassPropertyData class.

#

If you don't have access to SomeClass, you can instead do something like:

[GeneratePropertyData(typeof(SomeClass))]
public partial class SomeClassPropertyData { }

And SG will fill in the implementation.

#

But both of these approaches have the issue of you have to do that for every class you want to generate.

urban warren
#

I guess my goals are

  • Make using serialized properties refactor safe by not using magic strings.
  • Easily access serialized properties from any class with minimal boilerplate
#

Could I do something like

public static class DataConverter
{
  public static partial ??? Create<T>();
}


??? someClassPropertyData = DataConverter.Create<SomeClass>();
#

Maybe generate SomeClassPropertyData from the Create method?

#

I don't really have a full grasp of what sort of info a SG can access and how it can be used.

scenic forge
#

Should be possible yeah, SG basically has access to your source code as parsed AST, you can indeed inspect that and see "yep Create<SomeClass> is called, I need to generate something so that will work."

#

Although you might have issue with how to actually implement that Create<T>.

urban warren
#

Oh, really, that is cool. What sort of issue?

scenic forge
#

Not exactly related to SG, but how would you write code for a Create<T> that return different types depending on T? Eg calling Create<int> it returns an IntWrapper, but calling Create<string> it returns a StringWrapper.

urban warren
#

Ahh you mean the return type?

#

Hmm, I was thinking generate a new Create method for each, but I guess that wouldn't really work...

scenic forge
#

Yeah

#

You can do DataConverter.CreateSomeClass though, but that kind of gets back into the magic string territory.

#

If you have access to SomeClass and can modify it, then you can put an attribute on it so you can let SG generate SomeClass.PropertyData so you can do new SomeClass.PropertyData().

#

But that has the same issues as the other approaches where you need to put attributes on every class you want generated.

urban warren
#

Well PropertyData needs to access the editor for getting the SerializedProperty but yeah. As you said it both requires access to the class, and adding it to every one.

#

I guess I could do SomeClassPropertyData propertyData = DataConvert<SomeClass>.Create(); No...?

#

maybe... no...?

scenic forge
#

Would that work? Create needs to have a different return type for different SomeClass.

urban warren
#

No I guess not right, cause the Create signature would be the same except for the return type.

scenic forge
#

Hmm, one idea is to do:

DataConverter.Create(out SomeClassPropertyData foo);

It looks a bit ugly though.

urban warren
#

I would need to define SomeClassPropertyData thought right?

scenic forge
#

No, SG can generate it (probably).

urban warren
#

How can it? It doesn't reference SomeClass anywhere in that line...?

#

I guess DataConverter.Create<SomeClass>(out SomeClassPropertyData foo); would do though

scenic forge
#

Well it can look at you calling with out SomeClassPropertyData foo and realize it needs to generate a SomeClassPropertyData class.

urban warren
#

That feels kinda dirty but kinda cool haha

scenic forge
#

But yeah your idea of DataConverter.Create<SomeClass>(out var foo); is better, it's more refactor safe when renaming SomeClass.

#

Hmm, actually that wouldn't work.

#

You still need to specify the out parameter type so it can resolve overload.

#

And specifying type will break refactor when renaming SomeClass, if that's what you care about.

urban warren
#

It would throw compile errors though I think, so it would be fine.

scenic forge
#

Yeah it would, then you would have to follow all the errors and fix them one by one.

#

The new SomeClass.PropertyData() solution wouldn't have this issue and is refactor safe, but the obvious con being you have to modify SomeClass.

urban warren
#

Which I might as well just use an attribute at that point

scenic forge
urban warren
urban warren
#

Anything that prevents me from having to use so many dang 'magic strings' that I have to search down every time I refactor

scenic forge
#

Yeah having to write a stub class like that is a cost, but at least it’s just one time cost and you get the benefits of safe refactoring down the line.

urban warren
#

Yeah, kinda my thinking

exotic trout
#

Anyone know of a way to access objects in a newly additvely async loaded scene before the contents of the scene do oneanble/awake?
I was looking at AsyncOperation.allowSceneActivation but that doesn't give me access to the "preloaded" scene right

scenic forge
#

I don't really like that though, it means creation logic of every single type will have to be in one method.

urban warren
#

oh... ew

#

I was wondering how it was doing it, but that makes sense

scenic forge
#

Yeah, and speaking of which, another solution other than the stub class one is to put an attribute on the SomeClass, but rather than generating a separate SomeClassPropertyData class, SG generates a nested class inside (SomeClass.PropertyData)

#

That will also be refactor safe and probably easier to use, if you always have access to modifying SomeClass.

urban warren
#

Yeah but that would require wrapping it all in a #if UNITY_EDITOR and I am not a fan of mixing editor and runtime code when I can help it.

I think the way to go is either with the attribute on the SomeClass or go with defining SomeClassPropertyData with a attribute or something.

#

I guess I could always treat SomeClassPropertyData as a sort of 'view model' and have it partial so you can put other editor only logic in too

scenic forge
#

Hmm, wrapping it in #if UNITY_EDITOR should be done by the SG right?

#

So it shouldn't affect runtime code, other than extra attribute metadata.

urban warren
#

Yeah, but it will still be there and accessible in the runtime code. And requires making your runtime class partial

scenic forge
urban warren
#

Yeah guess so. Thank you once again for your help! 😄

raven orbit
#

By pressing Q and E I'm rotating the camera by 90 degrees. If I want to keep WASD coherent for my grid based movement do I need to multiply my input by Quaternion(0,-cameraRotation.y,0)? Or else?

regal lava
#

if it's a grid based movement I'd expect you'd just have different key profiles for each camera rotation

#

I mean I guess you can do camera relativity too, but probably easier just to set 4 different cases

raven orbit
wraith storm
#

Hi, with the JSONUtility class, is there a way for me to supply my own ToJSON() function for my own class, to serialize that part manualyl?

flint sage
#

Not with the built in json serializer, you should consider using json.net or system.text.json instead

novel plinth
#

yeah, that's easy to do with custom converter with STJ

#

make a custom attribute, tag those fields/props then let your custom converter do the rest

wraith storm
#

Thanks a lot for the help

brisk pasture
#

really the newtownsoft/json.net one i would recomend over JSONUtility for most use cases

#

it also supports more collection types, most importantly Dictionary as well

wraith storm
#

Wow, I've been wanting Dictionary serialization for ages, I'll definitely check that one out.

hallow creek
#

Does anyone have the best version of StateMachine? I know Darkadia has a very customizable and stable one but Im still looking forward to upgrading mine

brisk pasture
#

a StateMachine is just a pattern, the best one or best way to implement one really depends on what you are trying to accomplish

past quiver
hallow creek
dusty wigeon
grave raft
#

how do i generate sound using loop?

#

(max processing time: 200ms)

static flint
#

how can I overload methods with something like enums

#

I was able to do it with classes, but it feels weird

upbeat path
#

why would it be any different a class is a Type, an Enum is a Type

brisk pasture
#

need to explain more what you mean, enums do not have methoods unless you are using something like extension methods

regal lava
#

you can always create a new enum and point to the previous enum type and include additional entries

tiny pewter
#

the first thing i come up with is writing a jump table

#

i have no idea why

static flint
#

now that I think about it, it could just be a vscode problem

#

thats annoying

upbeat path
#

show your code

static flint
#

one sec I gotta make it again

#

here is my enum:

    Direct,
    Universal,
    Others
}```
#

here are 2 of my functions:

{
        
}

    public static void invokeNetworkMethod(MessageTypes.Universal messageType, int recipientClientID, string methodName, params object[] parameters)
{
        
}```
brisk pasture
#

remove the static modifer from the enum

tiny pewter
#

why you can have static enum

upbeat path
#

not the way you use enums

static flint
#

oop idk why thats there

#

still doesnt fix it tho

upbeat path
#

this MessageTypes.Direct messageType, is an invalid signature

brisk pasture
#

then in your method signatures just have MessageTypes

static flint
#

but I wont be able to overload the method

brisk pasture
#

MessageTypes is the type for the enum, DIrect is a value of it

#

just like int would be a type and 42 would be a value

upbeat path
#

of course you can

static flint
#

not with the enum

brisk pasture
#

you are misunderstanding what a enum is

upbeat path
#

you are trying to use a enum value as a type, not gonna work

brisk pasture
#

also there is no need to overload in this case

tiny pewter
#

you need switch case inside your method to branch
btw code beginner problem

static flint
#

nah I cant do that

upbeat path
brisk pasture
#

just use different methods

#

since the rest of the signature is changing

static flint
#

Im making a multiplayer thing, and I need it to be understandable for others

#

different methods is messy

upbeat path
# 
public static void invokeNetworkMethod(MessageTypes messageType, string methodName, params object[] parameters)
{
        if (messageType != MessageTypes.Direct) return;
}

    public static void invokeNetworkMethod(MessageTypes messageType, int recipientClientID, string methodName, params object[] parameters)
{
    if (messageType != MessageTypes.Universal) return;    
}

whats the problem?

dusty wigeon
brisk pasture
#

he wants to constrian a signature to a enum value that is not possible

static flint
#

I'll just use classes lol

grave raft
brisk pasture
#

why do you need this, the signature changes based on the message type anyways, so that would be enough to seperate the methods and overload

dusty wigeon
# grave raft that is too slow

Then you will either need to generate the sound with an AudioClip (If it is possible) or use a 3rd party audio library.

grave raft
#

audio library?

brisk pasture
#

also feels like trying to be clever over clear

dusty wigeon
grave raft
#

not using those

dusty wigeon
#

Then, you are out of option from what I know. I believe that using FMod or Wwise would be you best shot if audio clip cannot be generated at runtime.

grave raft
#

it neds to be generated

#

i need to convert my presurre changes into an audio

dusty wigeon
arctic valve
#

Quick memory related question,

If a single submesh in a fbx file is used does it load all of the other submeshes under that same fbx?

kind sigil
#

using Physics.NonAlloc casts. If I have a arr.Length of 10. Previous frame had 6 hits, and current frame has 3 hits. does that mean that the array will still have 6 "hits" 3 from current, and 3 from previous? Or does it set the rest to null per cast call?

fresh salmon
kind sigil
#

I see, I know about the int, it's just I had an Array.Sort on it and seems it will sort the old ones with the new ones.

regal lava
#

can always clear it and it'll keep the stride capacity I believe

fresh salmon
#

Array.Sort() has an overload where you can pass the start index and length, it won't sort outside of that

#

So Array.Sort(hits, 0, hitCount) where hitCount is the integer returned by the physics cast should do the trick

misty glade
#

I'm trying to debug something in my code that calculates the minimum size of a component based on the max x/y of all the child components. They're instantiated and parented in a grid layout. They're each 300x350 but for some reason the anchored position is showing as (0,0) and a call to LayoutRebuilder.ForceRebuildLayoutImmediate is having no effect. I've also double checked that the objects are active and active in hierarchy. It just seems like the force rebuild isn't doing anything until... later?

Inspector/debug mode properly shows anchored position/sizedelta is what I expect, but in the frame I instantiate these things, they're all anchored at 0,0.

What idiot thing am I not realizing?

#

(inspector shows 45, -1368, debug.log shows 0,0)

image.png image.png
#

Actually.. I'm kicking this all off in Awake(). Will layouts fail at that time? maybe that's the problem..

#

Sigh, that was the problem.

#

rubber duck to the rescue. 🦆

twilit grove
#

I have a scriptable object which wants to have a reference field to a specific script which I can drag in (sort of how I would do using something like a sprite, where i can drag the script in from an assets). I only want scripts which inherit from a specific class too, so if there is a way to do this someomne please help me out.

fervent dagger
#

can App Domains be used in .NET Framework

and do such support Windows, Mac OS, and Android ?

valid shale
#

Unless I'm mistaken App Domains aren't available in Mono. And they definitely aren't available in real .NET (Core) (which everything is moving to). My suggestion is to find a way to not use App Domains for whatever you're trying to do.

fervent dagger
#

how can i unload an assembly from memory ?

valid shale
#

I know they were slowly adding support for assembly loading/unloading through a different mechanism in .NET.
I have no idea if Mono ever allowed it through alternative means, a google search would probably point you in the right direction.

fervent dagger
#

understands little of that

acoustic vortex
#

i think i know to to stop "not loaded" "is loading" error

#

i think my tries to load the scene every frame while being in the triggercollider2d

stark urchin
#

Hello, we're using Unity 2019.4.36f1, and we have a custom package in our project from a github repository. Unfortunately, it has caused us a lot of issues, and we'd like to just move it to the Assets folder instead of having it as a package. Does anyone know the best way to approach this?

austere jewel
stark urchin
upbeat path
austere jewel
#

Well, you'll have to give more specifics if you want to get help, because embedded packages don't fundamentally break things, they'repractically just normal assets

stuck plinth
stark urchin
#

thanks everyone. will give it a shot and be more specific once im next available

sick kelp
#

hey, can someone help with netcode here?

#

i'm trying to use it on LAN but it's not working

#

both computers are on the same network

#

and i'm using the ip from ipconfig

dusty wigeon
sly grove
ornate blade
#

Looking for some help, Trying to build a string container that allows for member variables to be referenced like {memberVariable} in the string. This would allow for designers to grab current values of an object and also allow for any field to be retrieved. I currently have a working prototype but is using Reflection which is a bit slower, does anyone know any patterns or simple command that I am overlooking? here is my current code:

 public static class FormattedString
    {
        
        public static string GetFormattedString(string baseString, object obj)
        {
            if (!baseString.Contains('{'))
                return baseString;

            string formattedString = "";

            foreach (var split in baseString.Split('{'))
            {
                if (!split.Contains('}'))
                {
                    formattedString += split;
                }
                else
                {
                    int index = split.IndexOf('}');
                    formattedString += GetFieldValue(split.Substring(0, index), obj);

                    if (index < split.Length)
                        formattedString += split.Substring(index + 1);
                }
            }
            return formattedString;
        }

        public static string GetFieldValue(string name, object obj)
        {
            try
            {
                return obj.GetType().GetField(name).GetValue(obj).ToString();
            }
            catch
            {
                return "{Unable to find: "+ name+"}" ;
            }
        }
    }
reef bone
#

Hoping someone might be able to help me because i've tried basically everything at this point. I'm trying to import msal for android into my project so I can do authentication with azure b2c on android
I got the aar in Assets/Plugins/Android with the proper platform include set up(only included in Android builds). I set up a custom proguard file just to make sure everything from it will be included in build.

I am trying to access the PublicClientApplication function but I am getting a AndroidJavaException: java.lang.ClassNotFoundException exception. I tried with a different function from the same library(BrowserTabActivity) and that was grabbed just fine. I've tried different versions of msal(5.0, 4.9, 4.0). double checked the aar contents to make sure it has the class i am trying to call(it does), i've check build logs to see if any errors/warning came up(nothing seems to be wrong). any ideas what could be going on?

verbal cipher
#

anyone have any tips for hooking a particle system renderer up to a UI slider? this is the code I have for it cunrrently, and it gets the references but doesn't actually change anything in the material.

image.png image.png image.png
sly grove
#

Do you happen to be a Python/JavaScript developer?

sly grove
ornate blade
#

@sly grove would love to know how to put all the fields into a dictionary, all structs would have to be boxed.

sly grove
ornate blade
#

It boxed variables really don't like changes

#

The GetFormattedString function requires an object to retrieve the type and fields.

sly grove
#

I don't really understand the use case behind your code. Why would I use your code vs existing C# string formatting utilities i.e. string interpolation or string.Format?

ornate blade
#

Ok, interpolated strings cannot take variables that are not referenced within the code. As such, If I had a designer that I told to build a tooltip for any object.
They could write the following in the unity editor text box: "Deals {minDamage} to {maxDamage] of [damageType] damage to the target."

My script would find all 3 fields within the script, since most teams export out there documentation it would always be up to date with the latest variables that are available.

OR

I could go about using Format, Give my designers the List of fields that are available and are sitting in the list I provide format as my arguments.
As such it would look like this: "Deals {0} to {1] of [2] damage to the target."

Not a big deal until I have 6 programmers working on 32 different scripts and the added fields were added to the documentation but not the list we provided the designers.

Also If you were to build an asset for the store, simplicity is key and having a property drawer that can just grab all fields for an in game tooltip is ideal.

obsidian glade
#

code generation is often a performant alternative to reflection, but I think just agreeing on a workable system with designers might be better - I assume there will be some predictable consistency with what information should be in tooltips for the types you have?

dusty wigeon
# ornate blade Ok, interpolated strings cannot take variables that are not referenced within th...

Really bad idea to create a text interpreter (Error prone, possibility of performance issue, compatibility issue (ILL2CPP), more complex, error handling). Instead, I would do something like that:

[Serializable]
public abstract class DataProvider 
{
  public abstract string Get();
}

[Serializable]
public class TypeDamageProvider : DataProvider 
{
  [SerializedField] private DamageTypeDefinition _damageTypeDefinition;

  public override string Get()
  {
    //Rich Text Formatting ? (_damageTypeDefinition.Icon, _damageTypeDefinition.Description, _damageTypeDefinition.Color, etc.)
    return _damageTypeDefinition.Title //Name is already used by unity.;
  }
}

[Serializable]
public class Tooltip
{
  //Add Localization on top of it
  [SerializedField] private string _message;
  [SerializedReference] private List<DataProvider> _dataProviders;

  public string GetMessage()
  {
    return string.Format(_message, _dataProvider.Select(x => x.Get()).ToArray());
  }
}
#

That being said, ideally you would query directly the damage type/data of the attack instead of repeating the data twice. (And you might want to remove linq depending on the performance you are aiming for)

regal lava
#

Neat, need to implement something like this eventually. No clue how to heck to tooltip an ability that creates other types of abilities through conditions though

#

some recursive tooltiping

#

I'm already dreading it

scenic forge
#

string.Format works by referencing index though, which is really fragile if your add/remove/reorder data providers, and with the current setup each data provider can only provide 1 string.

brisk pasture
#

how i have handle it in the past is put all things that can be referenced in the string in a Dictionary

#

then had a regexp i used to find my placeholders and extract the key for that dict from and replace with the gotten value

scenic forge
#

Storing names to values mapping in a dictionary is fine, or simply changing the data provider to string Get(string Key) then looping over is also fine assuming you aren't going to have hundreds of thousands of pairs.

#

(This kind of system sucks for catching typos and refactors because it's essentially magic string with no protection or even any help to know what variables are available, kind of the same issues with i18n, but oh well it's a tradeoff)

dusty wigeon
#

The message and the DataProvider are beside which kinda remove the issue of add/remove/reorder. In fact, I believe that using keys could actually be a detrimental as well. Such as duplicated keys, renamed keys, unused keys, unknown keys, ambiguous keys, etc.

Alternatively, you could have your DataProvider to be instead a DataSource and query from them instead with a key/value (find and replace). There is also the possibility of removing completely the DataProvider and DataSource and use a "DataResolver", however each time you are pushing your data further from your message increase the complexity. At the end, it is a matter of how much flexible you want to be versus how much complex you are ready to go.

scenic forge
#

Sure yeah, if for every tooltip you need to drag in the data sources alongside the message, then the index concern is less of an issue, but the tradeoff being you need to do that for every tooltip, rather than having a common set of providers and you only reference whichever you need (which also has the tradeoff of having to know the variable names)

ornate blade
#

I guess I am going to use the reflection solution I originally posted for the time being and try to optimize where I can. As you all have noticed I am using this mainly for tooltips which in all reality are displayed when the player slows or is non-active, thus a small lag spike could be mitigated if it even causes one to begin with.

#

Only thing I might end up adding is a property drawer with a list of drop downs and an attribute that only allows for certain fields to be used. I'll post the solution on GIT and link it here if anyone would like to try it out.

burnt hatch
#

I want to schedule jobs over a NativeParallelMultiHashMap but I noticed that IJobNativeParallelMultiHashMapMergedSharedKeyIndices was removed. I couldn't find any info about what the standard prodecure is nowadays, anyone who knows?

regal lava
#

And I thought my interfaces were a little too verbose

fervent dagger
#

is it possible to access the Burst Compiler at runtime and get it to process assemblies that contain the BurstCompiler annotation

stark urchin
shut surge
#

Hey all, does anyone know if there's a way to modify native collections inside of animation jobs?

worn elm
#

Is it possible to switch the openGL context in a native plugin without breaking Unitys rendering? I am trying to store the current openGL context and then switch back to it after I am done. But just doing this without anything else alrady breaks Unitys Editor rendering:

UnitySubsystemErrorCode QuadBufferStereoDisplayProvider::GfxThread_SubmitCurrentFrame()
{
    GLFWwindow* unityWindow = glfwGetCurrentContext();
    // Custom render stuff
    glfwMakeContextCurrent(unityWindow);

    return kUnitySubsystemErrorCodeSuccess;
}
shut surge
full mulch
#

I'm just now learning the jobs system because I have a game that has a pretty important use case for them

#

Question I have though, just to satisfy my 3 AM self

#

let's say I had an array of triangles representing a mesh, and it was a really complex mesh, and I wanted to calculate the physical mass of the mesh. My understanding of multithreading would suggest that having a bunch of threads summing up a single value wouldn't be possible.

hollow wraith
#

Techically you could divide your mesh into submeshes, compute the mass of each submesh individually and sum them all after

full mulch
#

I technically am :)

#

Can't say much (something something NDA)

hollow wraith
#

haha good luck then

full mulch
#

but I have a workload that involves generating convex collision meshes from one single concave 2D shape

hollow wraith
#

why would you start from a 2D shape ?

full mulch
#

and part of that workload involves calculating the mass of each collision mesh

hollow wraith
#

I don't know what a "collision mesh" is

full mulch
#

and it's easier to paint and erase 2D shapes than it is 3D, we have a library for it that's decently fast.

full mulch
#

I just call 'em collision meshes

hollow wraith
#

Oh I see

#

Sounds pretty cool

full mulch
#

Also means that calculating the mass of each collision mesh is a simple algorithm

hollow wraith
#

Yep working with one less dimensions should be linearly faster

full mulch
#

You calculate the area of each front-face triangle, so those inside the original 2D shape. Then you multiply by the object's thickness value. This gets you the volume of the equivalent 3D triangular prism. Then you sum them all up, multiply by a mass per unit value, and bam

#

Just not sure if it's worth jobifying that

#

I mean I could jobify the part where I calculate each triangle's volume but not sure about summing them all up for the entire mesh

hollow wraith
#

You only need to compute this for one mesh at a time ?

#

And how many vertices approximately would your mesh be made of

full mulch
#

indeterminate

#

I can't predict what the player will paint into the level

hollow wraith
#

but more like ~500 or ~1m

full mulch
#

it could just be a single cube, or a giant clusterfuck of triangles

hollow wraith
#

xd

full mulch
#

the game does try to clean up the 2D shape before triangulation and splitting into convex shapes

#

but even a 1x1 unit circle will be 16 triangles

#

so if a player starts going ham with the circle brush, it adds up. And right now all of this is single-threaded, so if I go ham with the circle brush...even my computer struggles and the framerate starts to dip lower and lower till I let go

#

Mostly because I have to do multiple meshes at a time

hollow wraith
full mulch
#

Yeah.

hollow wraith
#

goes down*

full mulch
#

The mass computation. Once the collision meshes are generated and the colliders are set up, the game's fine

hollow wraith
full mulch
#

And it's not just calculating the mass that I have to do

hollow wraith
#

so right now you're computing the mass while you're painting ?

full mulch
#

I have to extrude out the 2D shape, so adding back-face vertices for each front-face one. Then connecting those back face verts with the extra triangles in the index buffer. Then I need to connect the back face to the front face by generating triangles for each edge of the shape. Which also means I need to figure out where all the edges are by finding indices that form a line not shared by multiple triangles in the font face

#

So...
step 1: edge finding
step 2: mass calculation
step 3: generate backface verts
step 4: generate backface tris
step 5: connect front face edges to backface edges
step 6: update colliders

full mulch
#

Need to be able to, because the game relies on the collision meshes to figure out whether you're painting over another object in the level

#

or trying to erase one

#

And it all works, it's just slow

hollow wraith
#

are you using a lot of computations with floats and vectors

full mulch
#

And since this also needs to be done as the level loads, if I can offload a lot of the work to other threads then it should also improve level load times (which..admittedly aren't that bad right now, all things considered)

full mulch
hollow wraith
#

did you ensure the computations (float, float) are always done prior to (float, vec) and prior to (vec, vec)

full mulch
#

considering I don't know how to answer that, I'd say no

#

though A LOT of the work is just moving things around in memory

hollow wraith
#

i mean if at some point you compute a * b * v (where a and b are floats, and v is a vector2), you should compute this in that very order, not v * a * b or a * v * b

full mulch
#

Why? In my head, multiplying a vec by a float is easier to reason with. Curious what the performance implication is though

hollow wraith
#

this is because a * b * v compiles to a * b (1 product) then result * v (2 products) while a * v * b for instances compiles to a * v (2 products) then result * b (2 products)

#

first needs 3 products while the second needs 4

full mulch
#

I'll keep that in mind

hollow wraith
#

https://www.youtube.com/watch?v=Xd4UhJufTx4 at 14:20 for better explanation with benchmarks

YouTube
Tarodev
Unity Code Optimization - Do you know them all?

Find what common Unity optomizations truly make a difference. In this video I go over a bunch of interesting optimization tips as well and give you my recommendations on each.

Keep your code running fast with as little garbage allocation as possible by learning from these important concepts.

Benchmarks (let me know if you get weird results!):...

▶ Play video
hollow wraith
#

did you compare the time of execution with other operations ?

full mulch
#

All I have to do there is

#

take the original 2D shape's vertices, and then its triangle list as inputs

#

for each index in the triangle list

#

grab the vertex

#

set Z to the object's thickness value

#

add it to the end of the mesh's vertex data (after doubling the size of the array, obviously)

#

then add the number of original triangle indices to the index I'm working on, then add that to the end of the original index buffer

#

So what I end up with is a new mesh, with double the vertices and double the triangles, but now both the front face and back face are represented

hollow wraith
#

I see

full mulch
#

So if I'm taking a 2D square, I'll start with 4 verts and 6 indices

#

So I have to allocate space for 8 verts and 12 indices

#

but remember that I started out with 4 and 6 respectively

#

for each of the 4 verts, duplicate it and set its Z to 1 (let's pretend I'm turning a square into a cube)

#

and store that in the vertiex array at position 4 + n where n is the index of the vert I'm duplicating

hollow wraith
#

Wait

#

Sorry but english is not my main manguage and idk what index means here

full mulch
#

Just an offset into the array

hollow wraith
#

so please tell me so that i can dive into your explanation

#

Why would you need 6 indices for a square ?

full mulch
#

Because a square is made up of two triangles, a triangle is made up of three indices, 2 * 3 = 6

hollow wraith
#

Oh yes that makes sense now

#

by index you mean the position into your big array of triangle vertices

full mulch
#

Yeah

hollow wraith
#

great

brisk pasture
#

so there is only 4 verts, but 6 indicies since some verts are shared by both triangles

full mulch
#

yes

brisk pasture
#

the order matters to

full mulch
#

I have to duplicate the verts but change the Z values of them, then I need to duplicate the indices and point them at the new verts

brisk pasture
#

the winding direction is used to decide what way the triangle faces

hollow wraith
#

most of the execution time is consumed when you connect the new triangles into the overall collider mesh no ?

full mulch
#

I'd assume so. But I also imagine that a lot of time would also be spent breaking the original concave 2D shape into the convex ones.

I'd profile it, but I'm blind and the Unity profiler is....not blind-accessible

brisk pasture
#

of its this is for a collider and not a render mesh really i would just try to use only convex shapes to start

hollow wraith
#

wdym blind

#

Like actually blind ?

full mulch
#

I'm not focusing on the part of this whole algorithm that breaks concave shapes up, I'll eventually jobify it but I'm focusing on the part that's probably way easier to jobify which is extruding out the convex shapes into 3D meshes

full mulch
#

rely on a screen reader to read anything more than a word or two at a time, and I have the windows magnifier at 1500% zoom

#

not 150%

#

1500

hollow wraith
#

Wow mad respect for using unity in yout situation

full mulch
#

but I've been writing code for almost my whole life, and doing gamedev pretty much the entire time, and I don't intend on stopping

brisk pasture
#

ah so the profiler is brutal since its like 99% graphs

full mulch
#

yeahhh

hollow wraith
#

do you have colleagues who can look at your profiler results ? If no I can try helping you in a shared video or something

full mulch
#

Team's very small rn

#

two other programmers, I'm the lead

brisk pasture
#

does most of unity work well with screen readers?

full mulch
#

not at all

brisk pasture
#

i know accessibility is sadly pretty terrible for a lot of modern applications, like heard lots of complaints about slack for example and screen readers

full mulch
#

it is the worst piece of software ever for screen reader support actually, but I have my ways

formal lichen
#

Wait do you use text to speech then?

full mulch
#

I'm familiar enough with Unity's layout that, as long as they don't do a massive overhaul, I can navigate just by muscle memory

#

when I'm reading the console, I'll copy the text out of it and into a discord channel so I can right-click on it and hit "speak message"

#

that's how I read stacktraces now

formal lichen
#

Oh god the horror of hearing text to speech of a full stack trace

full mulch
#

I don't read the full one

#

Only the first 4 lines

#

I get the error message and then the first few entries in the call stack, usually by then I've already hit my own code

hollow wraith
#

are there applications that zoom in on some window in real time ? like Powertoy's Crop and Lock but with a zoom

full mulch
#

I zoom into the entire screen outright

#

Windows Magnifier

hollow wraith
#

oh nice

full mulch
#

but funny you ask, when I'm playing a game and I need to see the minimap, I just set up an OBS scene that captures the monitor I'm playing the game on....but zoom really far into the part of the screen with the minimap, then put the scene into fullscreen preview mode on another monitor

#

so the GTA V minimap for example takes up my entire left monitor

hollow wraith
#

xd

#

you have your ways

full mulch
#

I also wrote my own plugin for rider that lets me highlight code and send it to a text-to-speech voice, and that's why I'll never write anything outside of C# because I'm so familiar with the language that I don't need to hear most of the syntax to understand what a piece of code's doing

#

Can navigate based on color and indentation

#

I can tell the difference between

thing == stuff

and

thing != stuff

even though the voice just says "thing equals stuff" in both cases, because there's a subtle pause when it tries to read "thing != stuff"

hollow wraith
#

That's honestly impressive

#

Did you share your plugin ?

full mulch
#

Nope, it kinda relies on a specific exe file being placed in a specific spot on my computer so

#

it's

#

not portable

hollow wraith
#

that's unlucky

full mulch
#

all that exe file does is take in the text to be read via standard input, and send it to a .NET 3 SpeechSynthesizer

#

it's a bodge

#

but it works

#

and I'm not changing it

#

because I hate kotlin and gradle

hollow wraith
#

lol ok ok

brisk pasture
#

ugh gradle, why you cussing

#

dont totally hate Kotlin will take it over most other JVM langauges but well i just rather not touch the JVM in the first place

full mulch
#

yeah

#

CLR's much more fun

brisk pasture
#

C# and .Net is just a better Java and runtime

#

and other places where java is used alot like backends yeah i am just going to use something like Go instead

full mulch
#

Thing that annoys me about Java is that it's actually a federal crime to have two classes in a single file. Obviously in most cases that's not desirable even in C#, but while i'm prototyping something......

brisk pasture
#

why it depends on the purpose of the class, i often have multiple classes or structs per file

hollow wraith
#

dont talk to me about java

brisk pasture
#

generally one of them is a system of some sort and the rest are the data structures it uses

#

though generally its structs in that case

full mulch
#

Usually as I'm building out a system, I'll start by writing it all in one file to get my ideas out and then I'll split the file up into individual classes

#

but in java your code just won't compile if you have more than one class in a .java file (except for nested classes)

hollow wraith
#

my first course in my CS studies what a java project. I've maintained hatred towards the language ever since

brisk pasture
#

though java both not giving you a value type like a C# struct or giving direct control of pass by ref pass by value sucks

full mulch
#

I did C++ in school, I don't like C++'s standard libs but it's useful to know for C#

#

sometimes ya just gotta be a lil unsafe

#

and then there's VB

hollow wraith
#

lol

#

there's always assembly

full mulch
#

where arrays are accessed using parentheses

#

I love calling my arrays as if they're functions

hollow wraith
#

and booleans take 2 bytes

brisk pasture
#

C++ standard lib is always weird, its like a totally different langauge based on who you are writing it for

#

like every studio i worked at that uses C++ pretty much bans the use of certain parts of it

full mulch
#

C++ filesystem paths use the divide operator for combining paths together

#

it looks so weird

brisk pasture
#

or more or less made a whole DSL in it with macros

full mulch
#

unreal enters the chat

brisk pasture
#

yeah not a fan of how much operator overloading has been abused in C++

#

it just get muddies up intent and makes code harder to read without inspecting what all the ops do for a given type

full mulch
# 
UCLASS(Blueprintable)
class UThing : public UObject
{
    GENERATED_BODY()

public:
    UPROPERTY(BlueprintReadWrite, EditAnywhere)
    int thing = 4;

public:
    UFUNCTION(BlueprintCallable, BlueprintPure)
    int GetThing();
};
#

okay that's not so bad

brisk pasture
#

yup

#

most of it is doing attribute like things

#

but it can make for some terrible looking stack traces

full mulch
#

and some nasty errors if you screw up one of the macros or, god forbid, any of the generated code/headers from UHT and UBT get corrupt

hollow wraith
#

wait do all fields require an attribute like the above in unreal ?

full mulch
#

Depends

#

UPROPERTY() is like [SerializeField] in Unity, except that it's mandatory even for public fields. It allows the field to be reflected, serialized, and memory-managed if it's a pointer type

hollow wraith
#

I see

full mulch
#

it also lets you control how the property is able to be used in editor property views and in Blueprint

#

It's not too hard once you learn it tbh

brisk pasture
hollow wraith
#

Yeah it still sounds okay

brisk pasture
#

felt it should have always been explict

full mulch
#

a lot of beginner Unity tutorials don't teach SerializeField

hollow wraith
full mulch
#

and just have you put public fields everywhere so you can access them via inspector

#

but in an actual codebase, this is never ever what you want

hollow wraith
#

though i kinda agree with you

full mulch
#

It may be useful, but it's not good to get into the habbit of doing and honestly it doesn't take much time to add a SerializeField or expose the private field via a public property. We have code completions now, you don't need to type it by hand

hollow wraith
#

yeah I agree, I have a code snippet that does this, and I always write the SerializeField attribute instead of the public keyword when I only need to set the field in the inspector

#

but if I didn't have the code snippet, I thing I would often just write public

brisk pasture
#

no snippet for me auto complete is enough, though i tend to do it inline

full mulch
#

Apparently saying the word "anyway" is bad?

image.png
hollow wraith
#

lol

#

you can say lol but not anyway

brisk pasture
#

ah it would not let me gif, well you know i was going to toss the Jeremy Clarkson "On no, anyways"

hollow wraith
#

nice one haha

full mulch
#

Anyway... I was gonna ask one more jobs question

Let's say I have a NativeArray<Vector3> as an input where each element is a triangle.
And I have a NativeArray<float> as the output, it's one element.

I wanna do some math on each element in the input, with an IJobParallelFor, and I'd like to add the result of that math for each element up into the single float element in the output array.

Like maybe I'm calculating the area of each triangle in parallel then summing it all up as the result. How would I do this such that the result is accurate and threads aren't stepping over each others' toes?

hollow wraith
#

i'm not familiar with unity's job system (although I intend to dig into into very soon), but it sound like you should

#

divide your array into slices of this array (index 0 to n-1, n to 2n -1, ...) and give the responsibility of each sub-array to a thread

#

can't you do this with the job system

brisk pasture
#

yeah i have not dug into it much yet, really the only concurrent thing i do, i just manually made my own thread and task scheduler for

full mulch
#

Wonder if it'd just be better to do the calculations inside the job but then sum them all up on the main thread when the worl's complete

#

Bunch of float+float operations in a sequential array should be pretty cachable

#

at least I'd assume so

#

Or I could even break the summing up into its own long-running job and wait for that to complete. That way it's not forced onto the main thread when there's theoretically a dormant worker thread that could be doing it.

brisk pasture
#

or a 3rd job with depedencies on the other 2

full mulch
#

I don't think you can work with a MeshCollider or a Mesh in the job system, at least...I haven't tried

#

But if even updating the colliders could be parallelized then man

#

this is gonna fly

#

especially if ya throw a threadripper at the game

brisk pasture
#

yeah not sure if you can, am like 99.9% sure you can only deal with MeshCollider in the main thread

#

hmm would assume the same for Mesh as well, it is a reference type and has lots of arrays in it

full mulch
#

At least it can take a NativeArray fo the vertex data

#

and supposedly can for triangle data as well but I haven't figured it out

hazy epoch
#

Is it true that switch cases can't use variables as their condition? It HAS to be a constant? No way around that? I find it hard to believe, since I thought that a switch case was basically supposed to be a more powerful form of an if statement.

hollow wraith
#

Nop it doesn't at all

brisk pasture
#

would assume they are referring to the cases not the condition

#

would be 100% pointless if it was the condition

hollow wraith
#

oh lol yeah that makes much more sense

brisk pasture
#

but yeah the cases have to be constant, think that also holds try for pattern matching as well. though for pattern matching you can do more complex comparisons and do stuff based on the shape of the data

proud steeple
#

I've been following this tutorial to try and add squash and stretch functions to my buttons and other elements:

https://youtu.be/F_LtpgpTHA8?

However, when I try to call the coroutines, I get weird behaviour. For one thing, Event Trigger component's OnPointerEnter and OnPointerExit are getting called repeatedly and I'm not sure why since there's no raycast target that should be interceptting them (text one is disabled, image is enabled). For the button's OnClick event, it seems to work fine. Except that the shrinking seems to disappear down to zero instead of back to default size when I have "reverse" toggled. This occurs whether calling Shrink, OneShot, or the original coroutine, which suggests I messed up somewhere, but I'm not sure where.

Maybe someone could try to replicate this with the script I have by attaching it to a button. I thought I was fairly careful, but I guess not.

📎 SquashAndStretch.cs
YouTube
Christina Creates Games
Create a Squash and Stretch effect in Unity with code (2D, 3D, UI)

Adding some squash and stretch to your GameObjects can really make them come alive. All you need is a bit of code in Unity! Let's learn how!

This script can be attached to 3D objects, 2D sprites and UI elements without any changes needed. It's highly customizable and offers features like forward and backwards playing of the animation, percentag...

▶ Play video
untold moth
inland halo
#

il remove it thx

obsidian glade
hallow creek
#

I think the two coroutine will play at the same time if you dont stop it

#

so wait for grow coroutine to finish and start shrink one

ornate blade
# ornate blade Looking for some help, Trying to build a string container that allows for member...

For anyone reading into the the Tooltip Text Injector from yesterday, I did manage to find a solution.

Open to anyone: https://github.com/JBWD/Unity-Tooltip-FormattedText

GitHub
GitHub - JBWD/Unity-Tooltip-FormattedText: Formatted Text type that...

Formatted Text type that provides inline string interpolation at runtime. - GitHub - JBWD/Unity-Tooltip-FormattedText: Formatted Text type that provides inline string interpolation at runtime.

slim fulcrum
#

Hey guys, getting this error when I try to run my WebGL game on Itch.io but I don't get the error on desktop browsers. Same thing for all apps.

Blocked a frame with origin “https://MYITCHACCOUNT.itch.io” from accessing a frame with origini “https://html-classic.itch.io” Protocols, domains, and ports must match.

Anyone have any ideas?

sly grove
slim fulcrum
#

That is what I'm gathering. I am new to web. Usually I work on mobile / vr. Where should I look to fix that issue?

sly grove
#

You need your web server to spit out a CORS header i.e. Access-Control-Allow-Origin including the other domain as an allowed domain:
https://en.wikipedia.org/wiki/Cross-origin_resource_sharing#Simple_request_example

Cross-origin resource sharing

Cross-origin resource sharing (CORS) is a mechanism that allows restricted resources on a web page to be accessed from another domain outside the domain from which the first resource was served.
A web page may freely embed cross-origin images, stylesheets, scripts, iframes, and videos. Certain "cross-domain" requests, notably Ajax requests, are ...

austere jewel
#

They said they published on itch

slim fulcrum
#

Ok Thanks I will look into that any idea why it would work on desktop but not mobile?

austere jewel
#

One would presume you're doing something weird with web requests

slim fulcrum
#

This app is webgl build published to itch yea

#

I understand that something may be misconfigured. I'm not the only dev on this project. But it runs on desktop but not mobile. So I'm confused as to why that is

#

That would lead me to believe it's configured fine but I may be missing some setting somewhere or something.

sly grove
#

So presumably a difference in policy in the browsers

slim fulcrum
#

Yea that makes sense

#

What would you look into next if you were me?

scenic forge
slim fulcrum
#

Ok I'm doing that now.

stark urchin
#

How does "Find Reference In Scene" actually work? Because it's showing a bunch of GameObjects in the scene that very evidently don't reference the asset.

#

Is there a version of ref: that finds GameObjects and Components in Scene that just have the asset directly (Unity 2019)

upbeat path
#

not a code question, certainly not advanced so post in the correct channel in future but..
I think what you want is search t:asset in the hierarchy

frozen flax
#

It looks like it's impossible to limit mouse movement into a circle. You can lock it or not lock it but other options don't exist 😭

tiny pewter
#

by system call or just display the cursor inside a circle

eternal coyote
#

Have the actual cursor and a dummy cursor, the dummy cursor moves based on the cursors delta and it’s locked inside the circle, the actual cursor is set to invisible

sly grove
full mulch
#

I did it guys!!! I multi-threaded one part of my game's collision gen code and, although the performance hasn't gotten substantially better (since there's still one huge part of it being done on the main thread), there has been a slight improvement

hollow wraith
#

ahah that is nice to hear

#

did you try my suggestion about the order of the variables

full mulch
#

None of the code I refactored so far does any vector math rn so it wasn't needed

#

I'll bet the next part I jobify will though

hollow wraith
#

I see

full mulch
#

Though there is at least one part of the code where I can move a floating-point multiplication to a later job, to save a huge amount of multiply operations. Just haven't done it yet

#

It's where I multiply a triangle's volume by the object's mass. I should be doing this after summing all of the submesh volumes, that'll save me potentially thousands of multiply ops

#

I also may be able to get a huge gain by using NativeArrays to store the vertex and triangle data for the source 2D concave shape, and have the convex shape splitting code return me a bunch of NativeSlices. This'll potentially save me a bunch of NativeArray allocations and deallocations, and maybe even some GC hits

#

Either way I'm having a lot of fun

#

Being able to talk everything out here yesterday really helped

hollow wraith
#

I'm not really familiar with NativeArray, could you explain why you're using them instead of regular c# []

full mulch
#

if I'm being honest, the Unity job system kinda reminds me of SPU cores on the PlayStation 3. Where it takes a bit of skill to work with them correctly, and the kinds of workloads you can do with them is limited, but the potential is really huge if used correctly

full mulch
#

Jobs don't support C# managed types

hollow wraith
#

Oh okay

#

Also if I remember correctly, yesterday you mentioned that you needed to work with the global shape every frame, but do you think you could cut it down into several pieces and only work on the area the player is painting on ?

spiral grotto
#

I have somewhat of a complicated problem >.> I think

hollow wraith
#

and re-compute this area after some delay

full mulch
hollow wraith
#

Oh so you do cut down the overall shape

spiral grotto
#

Imagin you want a ball to bounce in the air... or off a glass table. the table is square

#

in fact the table could be any shape, it can even have hills on it

full mulch
#

It's just that the player could be painting a really huge shape, and the bigger the shape they're painting into the world, the more the framerate drops as more and more collision meshes need to be generated. This also depends on the brush they're using, larger brushes with less vertices mean less computation

spiral grotto
#

but you want to be able to place a shape on the floor under the table and have the ball only bounce in that area above the table.... but without walls

#

so its like a nav mesh in 2d, projecting itself in a way that an object in 3d is limited to that 2d space

#

but for various reasons we don't want to project walls up, not even invisible walls

hollow wraith
spiral grotto
#

we got it working but the problem is you cant slide along those walls it simply decides "nope, you cant go here" and you loose your momentum instead of deflecting or sliding along the invisible barrier

full mulch
#

It's when you involve circle brushes and/or anything more than a straight line where things get more complex

hollow wraith
spiral grotto
#

its not always a bouncy ball

#

sometimes its a hackey sack so it would slide rather than repel

#

it's actually none of these things but NDA prevents me from describing the actual problem

#

we tried casting a ray sweep down to triangulate the edge but that isn't returning values for some reason, we tried racasting a sphere, but it cant either...

hollow wraith
full mulch
#

NDA
A standard-issue legal contract that takes away a lot of things and gives little in return.
Cyberpunk 2077

hollow wraith
hollow wraith
full mulch
#

Only need to recompute colliders when the brush moves, and once more when you let go of the mouse and finalize the object

hollow wraith
#

What do you mean this is something you only deal with when creating levels, isn't the painting a core feature of your gameplay ?

full mulch
spiral grotto
#

okay so normally if you jump into a wall it checks the normal and you can possibly slide, depending on the friction material on the wall/controller

#

but in our case we don't want have a material, we want nothing, so sometimes it acts like a soild, sometimes it acts like a ribber, sometimes it acts like a wind volume

#

to control the external environment we wanted to use a 2d shape under the level to establish a boundary, once you get outside the boundary apply the desiered effect

#

but we need to be able to calculate the relation of the boundary angle to the vector of the object so in the case it deflects or slides, it does it relationally to the angle of the edge

#

but since the only way to confine the object above the 2d space is to ray cast down... we have only a true or false as our data point

hollow wraith
# full mulch Nope, it's a level editor feature \:)

if you're satisfied with your framerate, I don't see a reason to change your approach, but if the user can draw an "infinitely big" shape, the execution time would keep increasing so it may eventually break the game

#

@spiral grotto why can't you use invisible walls ?

full mulch
#

I may even be able to trade disk space for computation time by storing the cached collision meshes in the save file

spiral grotto
hollow wraith
#

Do you absolutely need to use a single mesh ? If not I don't see why the following would be true There will always be a point at which the shape becomes too complex to maintain a stable framerate

spiral grotto
#

also imagine the player can draw their own shape and have it become the allowed area

hollow wraith
spiral grotto
#

i know i mean we want to use it as a boundary that is only sometimes a collider and sometimes not a collider, sometimes its a trigger and the depth beyond the surface matters

hollow wraith
#

these settings can be changed via script, although your simulations seems really curious since no real-world object's physics behave like this

spiral grotto
novel plinth
#

I wonder why AnimationCurve is very efficient and faster than the usual .Lerp

#

Ah! right after I typed that, just remembered that all .Lerps are clamped, proly that

sly grove
#

except LerpUnclamped!

novel plinth
#

yeah

full mulch
#

You're brushing a 2D shape, which is represented as a list of paths that get extrudd into a mesh as you brush

#

In fact, most of the actual brushing is handled by a third-party script

#

it can be edited but if ya saw the code for it, you'll understand why me and my blind-ass self ain't editing it :)

lavish plinth
#

Hi guys. I'm trying to make a fortnite build system and it all works except for the preview object.
I asked #archived-code-general for advice and so far they couldn't seam to figure out why the preview build only works on a platform and not reset to the normal position

#

any ideas?

regal lava
#

I've given you ideas. You need to reset the position if it becomes too far away

#

Do as many comparisons as you like, as long as it works

robust flare
#

Hello not sure if this the right channel (ist kind of a math question i guess); Consider I have a grid which looks like this:

| 1 | 2 | 3 | 1 | 2 | 3 |
| 1 | ? | ? | ? | ? | 3 |
| 5 | ? | ? | ? | ? | 3 |
| 1 | ? | ? | ? | ? | 3 |
| 2 | ? | ? | ? | ? | 3 |
| 1 | 2 | 3 | 1 | 2 | 3 |

As you can see i know all values along the edges, i know want to find the values in the middle by lerping from the sides; I managed to lerp East to West or North to South but never from all sides at the same time..

On the picture you can see what i need it for the y coordinates of grey meshes vertices is the grid from above; as you can see it already has the correct y-values for all vertices along the edges. Any help; Ideas or useful links appreciated Thanks in advance 🙂

da280a68-0a64-4b42-9e4e-72382683dc3c.png
lavish plinth
regal lava
dusty wigeon
#

Alternatively, you could calculate the average of all your border
Fill the number with the average
Recalculate the average of each number till it stabilized. (I believe it will always converge, but I might be wrong)

dapper cave
#

planning for a project where level+gameplay designers aren't familiar with c#...

#

is visual scripting non-shit now?

#

there is no fucking auto-convert value!! wow ok i have my answer

regal lava
#

I dont remember it being shit, but it's just not something where I've got time to use for

#

so if you got the devs who are going to be creating systems and tools then sure, why not

dapper cave
#

it was shit when they acquired it from that asset store dev, then they said they'd implement his new engine to gain some speed

#

what i'm saying is unfinished node graph with sluggish performance and inconsistent behavior, that's bound to piss everyone off on the team

dusty wigeon
dapper cave
#

are you saying it's even slower than unity event?

#

ok, so they didn't update the backend

dusty wigeon
velvet rock
#

Does anyone know if DynamicObject and tryInvoke work with Unity?

sly grove
lavish plinth
# regal lava So how are you building the first platform from the ground up?

From my code I set BuildTransformpoint() on a button with the new input system. I then press the button to instantiate a build in the muzzle transform when the player is on the ground. If the player is on a build or looking at a build the player would then instantiate a build in a point on that build.

terse oyster
#

Hi! Any idea who can I delete a user account from cloud code js?

dusty wigeon
patent bear
#

Does anyone know when assembly definition constraints get resolved, especially those used in packages? I have a long standing issue with our build tools where define constraints don't seem to be taking effect when invoking BuildPlayer and I'm not sure if it's something to report, if I'm doing something wrong, or if it is intended.

dusty wigeon
patent bear
dusty wigeon
patent bear
sleek marlin
#

Hi everyone, I want to make a conveyor belt system where the objects traverse along the conveyors. However I want to have a really high item cap. Should I have a script on each item to create a job for the item movement or should I have an item manager script which does a foreach loop and adds a job for each item that way. Which would be quicker?

compact ingot
sleek marlin
sly grove
compact ingot
sleek marlin
sly grove
#

at the very least you'll want to be looking into the job system and/or ECS

sleek marlin
compact ingot
#

what praetor said

sly grove
#

this is a very difficult engineering task

sleek marlin
sly grove
#

not for the faint of heart or a novice

compact ingot
#

you basically have to keep the simulation totally separate from unity and use unity just to render what the player can see

sleek marlin
compact ingot
#

its a fundamentally different approach than what unity invites you to do with its gameobjects based architecture

sly grove
sleek marlin
#

Ahh thank you I’ll have a look. Because at the moment I’m lerping and slerping each object

sly grove
#

Well there's going to be lots of interpolation going on - but individual GameObjects for these things is a complete nonstarter

sleek marlin
#

So if you were making this were would you start

sly grove
#

At some point I need to revive this project 😵‍💫

sleek marlin
#

What basic concepts

#

I say basic loosely

compact ingot
#

really if you have to ask, you'll not get there

#

the answer is basically: learn how to figure out hard problems

#

and you do that by learning CS fundamentals

#

and you do that by reading books

#

and trying stuff for 5 - 10 years

sleek marlin
#

Let’s not start with you’ll not get there that’s a bad mindset. I’m about to finish CS A level and going uni this year so I’m defo passionate for it. I just need to know what to look at. I’m not in any rush

compact ingot
#

then do your CS degree, then apply what you learned

#

there is no simple answer to your question

#

there is no "start here"

#

you gotta break down your problem, research the parts, and try to put them together

sleek marlin
#

So I need to work out how to render multiple object translations whilst also keeping my FPS stable not by using game objects? The only ways I can think of is the job system. And ECS

compact ingot
sleek marlin
tall ferry
compact ingot
#

the problem you have is purely theoretical and derives from how computers work, Entites is one way to leverage a certain quirk of CPUs, Jobs are another that give you training wheels to do multi threading, but your problem is not solved by using any of these things, its solved by understanding why you have a problem.

sleek marlin
#

So could I start by trying to build a smaller system which is similar to the one I want to eventually get too. And then attempting to solve it without any help. The problem I have is FPS and rendering so many object transformations at once

compact ingot
tall ferry
compact ingot
#

also all these games make very drastic concession in their game design to enable that entity count, this is something to be aware of

compact ingot
tall ferry
#

thats what i consider not running, aka no one will be able to play

compact ingot
sleek marlin
#

I want to make the game right and not do some half bothered attempt at it which is why I’m asking so many questions. I’ve been looking at satisfactory as an example and it baffles me how they have so many objects but they are using UE5 not Unity

compact ingot
#

also, for the 3rd time, the simulation is not run in the game engine or with any of its types, it is fully custom, 100% separate

#

the engine just shows you the 500 items you can see from your players POV

#

there is no off-screen conveyor that has items lerping along its surface

#

its all trickery

sleek marlin
#

Oh I get it now sorry, I’m a little slow. So I need to learn how to create custom simulators to handle large amounts translations that aren’t seen by the user so it saves rendering and then implement that with any game engine of my choice

compact ingot
#

kinda, yes

sleek marlin
#

Loosely, I’m no expert by any means but I’m working on it

compact ingot
#

mind that it is not trivial to manage that

#

took all these games a really long time to make it work

sleek marlin
#

I don’t doubt that and as a solo dev it’s going to be way harder

compact ingot
#

and unity has been messing around with a generic solution to it (Entities) for almost a decade now

#

nobody has yet proven that a generic solution even exists and works (i.e. maintain productivity while getting increased performance)

sleek marlin
#

So what I’m trying to do is possible yet impossible. Like Schrödingers cat

compact ingot
#

yes

#

you should be optimistic that you can do it theoretically (enough time, money, motivation) but very respectful of the scale of the problem and very sceptical about anything you do in the short term

sleek marlin
#

So in other words I need to not screw up now so I don’t have a major screw up in future

compact ingot
#

naturally, you don't know what you dont know yet, so you might not even realize how difficult your project really is

sleek marlin
#

That’s what I’m afraid of.

compact ingot
#

if you don't fail, you will not learn.

tall ferry
sleek marlin
#

I’m not expecting my first 100 to succeed. I just need to find a starting point. I can sort of code in C# but not higher level concepts.

sleek marlin
compact ingot
#

while you will always get the advice to start small, and that is good advice, its also important to have a long term goal, a dream, something that stays outside your grasp, especially when you're new to the whole thing

tall ferry
#

Fail can also mean scraping the whole project

sleek marlin
#

Yeah it’s just a stab in the heart when you spend hours on something and it doesn’t work

compact ingot
#

hours. cute.

#

how about years

sleek marlin
#

Well that too but I’m not their yet

#

I haven’t reached true programmer depression

tall ferry
#

I scrapped my 5 month project a few months ago and felt so much better 😆

sleek marlin
tall ferry
#

i overscaled what i should be making, and thus it had to go

sleek marlin
#

If that made you happier

compact ingot
#

scrapping projects is the only option for 99.999999% of solo developers

#

so, you should get a friend to help you

#

that increases your success rate 1000x

sleek marlin
#

I’m a programmer I have no friends

#

🙂

compact ingot
#

well, get some

#

programming is a very communicative job

sleek marlin
#

Couldn’t agree more, but all my mates at college are stupid

compact ingot
#

you need to figrue out how to not think that way

#

other people are not stupid, they just want different things

#

well, if you get funding you don't scrap, you do a death march 😄

sleek marlin
#

My mate was in a CS course for 1.5 years and still can’t write an if statement

compact ingot
#

he probably isnt in the right field then

sleek marlin
#

Yeah he ditched a while back

compact ingot
#

he might be a great poet or carpenter

sleek marlin
#

But he’s happy now so that’s all that matters

compact ingot
#

mind though, there are people who are incompetent (in a given task/role) and you need to recognize them and not do projects with them

sleek marlin
#

Also true

compact ingot
#

capable teams are very rare

sleek marlin
#

But there are capable teams and that’s all that matters

compact ingot
#

most orgs use processes than only require mediocre/passably skilled workers

#

maybe, but i'd expect there to be one super-monkey in each team who cleans up all the shit to get it to pass certification

sleek marlin
#

Anyway I must go, but thanks so much for the advice. Will defo get reading. It is half 1 in the morning over in UK so probably start tomorrow lol. Night everyone

inland knoll
#

@lament salmon , hey man, been some time. I have had to do some other things but now I've come back to the cover baking thing. Sorry for the ping but, I'm just completely unable to figure out how you used the cover data to find an optimal point of cover to which the enemy could safely move. I've got a bunch of the baking figured out, but yeah, I've just been thinking about how to do this for a really long time now. My best ideas have been centralized around starting the search for an optimal point at the player and expanding outwards, checking every point in a radius, until a match is found, but that wouldn't solve the safe travel problem.

lament salmon
#

I'm still experimenting with that myself

#

Performance is a concern since multiple paths would have to be checked for each query

#

A lightweight option is to score it by how much you have to move towards the enemy

#

Or combine those two

#

Do you have problems with other things apart from the safe travel?

#

And I don't mind the pings - it's an interesting subject

lament salmon
inland knoll
cunning citrus
#

Hi everyone... I've been quite bothered by a little something in Unity for a while now, specifically with the size of some box helps created in a window. I need this right box help to automatically adjust to the size of the left box help for aesthetic reasons, but I don't know why the heck it's getting so complicated for me... I've asked about this in this forum before, but we couldn't solve the prob... Any ideas? Here's the code for both box helps:```csharp
private void DrawLeftBox(JsonData jsonData)
{
EditorGUILayout.BeginVertical(EditorStyles.helpBox);

        string elementName = jsonData.Name;

        GUILayout.Space(7.5f);
        GUILayout.Label(elementName, GUIStyles.GetFontStyle(true, "#3498db"));
        GUILayout.Space(-7.5f);

        EditorGUILayout.LabelField(string.Empty, GUI.skin.horizontalSlider);
        GUILayout.Space(5f);

        string newName = EditorGUILayout.TextField("Class Name:", elementName);

        if (newName != elementName)
        {
            elementName = newName;
        }

        showOptions[1] = EditorGUILayout.Toggle("Something Else", showOptions[1]);
        showOptions[2] = EditorGUILayout.Toggle("Something Else", showOptions[2]);

        DrawMultipleInstancesOptions();

        EditorGUILayout.EndVertical();
    }

    private void DrawRightBox()
    {
        EditorGUILayout.BeginVertical(EditorStyles.helpBox, GUILayout.Height(EditorGUIUtility.singleLineHeight * 8), GUILayout.Width(EditorGUIUtility.currentViewWidth * 0.25f));

        GUILayout.Space(2);
        GUI.backgroundColor = new Color(46f / 255f, 204f / 255f, 113f / 255f);
        propertyAdditionMenu.Draw();
        GUILayout.Space(15);
        GUI.backgroundColor = Color.white;

        EditorGUILayout.EndVertical();
    }```
image.png
ashen shard
upbeat path
ashen shard
#

oh yeah sry

upbeat path
#

but you are right, should be using UIToolkit not IMGUI

lament salmon
#

Might want some spatial partitioning (octree or just chunks) for optimizing the search, but that can come later

upbeat path
#

Do you consider the players shooting range in your calculations?

lament salmon
#

Not really at the moment, since every gun can be deadly at a long distance as it's aiming for realism

#

But I will likely implement that later, so that a player with a sniper rifle will seek farther firing positions than one with a pistol

upbeat path
#

It's a very tricky one to solve optimally

lament salmon
#

I got some ideas for it but we'll see how it goes

#

This gets very complex if the map has any verticality in it

#

There's already a heuristic for 'distance to enemy' so I could just have a higher weight for that if you have a long-range weapon

cunning citrus
# ashen shard This should be in <#502171135350407168>, but is there a reason you're not using ...

Oh, I just use it because I like the way it looks in unity... Most of the assets I've used do with IMGUI, and that's why I'm used to it. I think that if I used UI toolkit (besides I would have to start learning it) I would lose a little bit of the essence of how windows look in unity. A few time ago @upbeat path suggested me to learn unity toolkit, but i've finally decided to stay with IMGUI, atleast for the moment

ashen shard
#

also you can customize it to look however you want

valid shale
#

I'd wager a guess that IMGUI is going to be deprecated in favour of UIT at some point in the future as well, so you could avoid some potential pain by jumping on UIT earlier (though there's pain in that, too). It wouldn't make sense for both systems to survive long term.

upbeat path
#

Certainly when you are trying to do complex placement of items, UIToolkit is far superior and much easier to use

cunning citrus
cunning citrus
#

a label or a visual element?

ashen shard
#

Which element do you mean?

#

The banner at the top?

cunning citrus
ashen shard
#

No I meant which part of the UI

cunning citrus
#

oh, sorry

#

the banner

ashen shard
#

That can just be a visual element with a background texture

#

and a fixed height

lucid patio
#

So I'm trying to implement Jobs for the first time but I'm pretty stumped. Here is one of the least complex methods that I want to implement and it would be great to run each row in parallel but I'm not able to call scripts from outside of the job so I feel like it wouldn't make a large difference?

    private void calculateVertices() {
        Vector3[] vertices = new Vector3[WorldGenerator.Instance.chunk_vertex_count];
        data.local_noise = new float[WorldGenerator.Instance.chunk_vertex_length, WorldGenerator.Instance.chunk_vertex_length];
        data.biomes = new Biome[WorldGenerator.Instance.chunk_vertex_length, WorldGenerator.Instance.chunk_vertex_length];
        int count = 0;
        for(int i = 0; i < WorldGenerator.Instance.chunk_vertex_length; i++) {
            for(int j = 0; j < WorldGenerator.Instance.chunk_vertex_length; j++) {
                // The local positions of the vertex
                float x = i * WorldGenerator.Instance.chunk_step_size;
                float z = j * WorldGenerator.Instance.chunk_step_size;

                // The global positions of the vertex
                float x_global = x + data.offset.x;
                float z_global = z + data.offset.z;

                float y = applyGlobalNoise(x_global, z_global);

                // Get biome at position + apply noise
                Biome biome = WorldGenerator.Instance.biome_manager.getBiomeAtPoint(x_global, z_global);
                float biome_noise = biome.calculateNoiseAtPoint(x_global, z_global);
                y += biome_noise;

                // Save useful data
                data.local_noise[i, j] = biome_noise;
                data.biomes[i, j] = biome;

                // Local position of vertex
                Vector3 position = new Vector3(x, y, z);

                // Apply vertex
                vertices[count] = position;

                count++;
            }
        }
        data.vertices = vertices;
  }
full mulch
#

Can someone explain what the frick multiplying a Color by a float actually does? Because in this image, the word "Admin" is meant to be an orange color.

Basically I'm taking yellow (#ffff00ff), multiplying it by 0.5f, and that's the color I'm using.

In other game frameworks/engines, this usually would result in a 50% translucent version of the color but I have no idea what Unity's trying to do here or what the actual use case for this is in code

image.png
austere jewel
#

If you want 50% translucent but the same brightness, only multiply the alpha portion

full mulch
#

I'm trying to actually find the operator

#

I guess I'll look at it in rider

austere jewel
#

Or do you mean an operator that only scales the Alpha? It doesn't exist, make an extension method

full mulch
#

Yeah but github + dark reader doesn't highlight things very well and I still can't find it

austere jewel
#

I did link directly to the line of code

full mulch
#

and I still can't find it D:

#

welcome to me being blind

#

Have the same issue any time someone links me to a discord message

half swan
full mulch
#

I feel like that's not how I'd implement what they're trying to do tbh

trail spoke
#

hey guys , i'm wondering if Neon intrinsics is supported in my android system how can I check if Avx2 available and the the MMX, SSE, SSE2, SSE3, and SSSE3 extensions at runtime ?

trail spoke
#

found out that I can't use
using Unity.Burst.Intrinsics;
before declearing as static using static Unity.Burst.Intrinsics.Arm.Neon;

pseudo trout
#

what would be the optimal solution to anchoring a point to a specific region of a perspective camera using a varying FOV? here's a couple photos based on what we have. the gun camera has an FOV of 75, hence when I make the normal camera FOV 75, it is positioned properly. however, it gets displaced because of the gun cam still being 75, thus changing the position of the origin of the bullet trail in the perspective cam. im assuming i have to use tan in this, but im not sure how. any insight?

#

75 fov with 75 fov on gun cam

wv5dhoq.png
#

120 FOV on main cam with 75 fov on gun cam

3oYjWC4.png
scarlet idol
#

Hello, would just like to check if anyone has worked on a project where Unity was subscribed to a RabbitMQ broker? I am told that Unity supports RabbitMQ client as of .NET support for 4.0 but I would just like to check to be sure. I am using 2021.3.xx for my Unity version.

sly grove
gentle garden
#

Hi all,
Is there really no easy way to deal with .webp images?

I download a .webp image to the disk at runtime and wanna display it in unity UI.
I can just save the same data and rename the file to .png, but this leads to invalid bytes i suppose, since texture2D.LoadImage() fails then

This is what i used:

 if (File.Exists(filePath)){
            bytes = File.ReadAllBytes(filePath);
            UnityEngine.Debug.Log("Bytes: " + bytes.Length);
            texture2D = new Texture2D(2, 2);           // Create new "empty" texture
            if (texture2D.LoadImage(bytes))           // Load the imagedata into the texture (size is set automatically)
                return texture2D;
            else
            {
                UnityEngine.Debug.LogError("img couldnt be loaded to Texture2D");
            }                                           
}
else
{
      UnityEngine.Debug.LogError("file does not exist");
}

Has anyone found a way to read the data from webp files without using any of these half-implemented experimental github repos?
Ty!

sly grove
gentle garden
sage radish
sly grove
gentle garden
gentle garden
sly grove
#

sure but it wasn't very popular in 2013

gentle garden
#

Fair enough

sage radish
gentle garden
patent bear
#

~~The most recent one used this and we didn't have any issues: https://github.com/netpyoung/unity.webp~~ Just saw you said it imports with errors. Do you know what errors you are getting? I didn't have that experience when using it

pseudo trout
gentle garden
# patent bear ~~The most recent one used this and we didn't have any issues: https://github.co...

Thanks for the feedback. It's good to know that someone successfully used it. It could have been something on my end then. @sage radish was actually correct with his assumption. I only checked for png or jpg as fallback, but it turned out it our fallback is jpeg. With that i can completely ignore all the webp complications. Though now i know that there is a working solution in case i do need webp in the future and i might have judged too quickly. Thank you :)

#

I'm not on this server too often so if there's any reputation/ thanking system, let me know. You guys were all really helpful

sly flower
#

hey devs!! I dunno if this is the correct thread to post this... actually I have been following this tut: https://www.youtube.com/watch?v=_Xx4S-3c57Q&list=PL8K0QjCk8Zmi56rAL7KDjB8aZotCGn4T2&index=3&ab_channel=Flarvain

the thing is that unlike his, my cube wont update the position set in the prefab and will spawn at Vector Zero... why is that happening

YouTube
Flarvain
NetCode For Game Objects Pt 3 - Client Network Transform

Hey All,

Apologies for the unclear audio, I had only noticed how the mic had been set up after recording. I'll make sure it's good again in future videos :)

Hope you're enjoying the series so far i'm having a blast discovering everything netcode for gameobjects has to offer.

If you'd like to support me please consider hitting that subscribe b...

▶ Play video
vestal obsidian
#

can i draw my own application surface instead of using the built in one

tiny pewter
#

i think you mean splash screen

vestal obsidian
#

No

#

I mean rendering images on a custom app surface

#

So instead of letting unity to render the sprites, you render them yourself

simple herald
#

If I'm understanding you correctly, then yes, you can build a fully custom renderer but it's a bit esoteric. The basic idea is to just do whatever it is you need to do in the fragment shader (similar to if you'd do ray marching). Sebastian Lague on YouTube has a video where he builds a ray tracing renderer in Unity this way.

#

I don't know if it's what I'd call a "production ready" technique though.

vestal obsidian
#

awesome

#

I assume just resizing the app surface wouldn't be as esoteric ?

simple herald
#

Hm, what do you mean with just resizing the app surface?

vestal obsidian
#

Well, imagine a game with black bars on each side (resolution issue)

#

You wouldn't be able to render text in those black bars

#

not unless you resize the app surface

simple herald
#

I'm not entirely sure I'm following, but the shader would operate in clip space, which are normalized regardless of the resolution of the surface. You'd have to explicitly take the resolution into account during rendering.

#

Say if you want to maintain a specific aspect ratio, you'd have to know the aspect ratio of the target surface and draw the black bars yourself.

vestal obsidian
simple herald
#

No, the fragment / pixel shader would in fact only be invoked once per visible pixel on the surface being drawn.

vestal obsidian
#

So that's what im trying to say

#

Instead of rendering text inside the yellow box

#

which is the app surface

#

Can we scale it up

#

The black bars remain, but you can now render text at negative values

#

Well not necessarily negative values but u knnow

simple herald
#

Yes, it makes no difference to the pixel shader. You have to explicitly decide what to draw inside of the black bars anyways.

misty glade
tranquil pecan
#

I am making a terrain system that generates an island, I am using a modified version of sebastian lague's Terrain generation project. I am also using a shader to texture based on height. How could I make a biome system that will change terrain color, allow for biome based locations and vegetation, and be repeatable so it can be performant over network? DM or @ if you need to see any of my code or other resources