Attempting to copy 3 textures to 3 Texture2DArrays, all duplicates

[round mauve]

public static Texture2D ResizeReformatTexture(this Texture2D oldTexture, TextureFormat newFormat, Vector2Int TextureResolution)
    {
        // Create new empty Texture
        Texture2D newTex = new Texture2D(oldTexture.width, oldTexture.height, newFormat, false);
        // Copy old texture pixels into new one
        newTex.SetPixels(oldTexture.GetPixels());
        newTex.Apply();

        // Resize texture
        oldTexture.filterMode = FilterMode.Point;
        RenderTexture rt = RenderTexture.GetTemporary(TextureResolution.x, TextureResolution.y);
        rt.filterMode = FilterMode.Point;

        // Copy from newTex to temporary RenderTexture
        RenderTexture.active = rt;
        Graphics.Blit(newTex, rt);

        // Resize and copy back
        newTex.Resize(TextureResolution.x, TextureResolution.y);
        newTex.ReadPixels(new Rect(0, 0, TextureResolution.x, TextureResolution.y), 0, 0);
        newTex.Apply();


        // Release RenderTexture
        RenderTexture.active = null;
        RenderTexture.ReleaseTemporary(rt);

        return newTex;
    }```

I tried to remove the resize part

and just resized the textures myself, same issue

Changed it to an extension btw

[sonic bolt]

Hmm okay, how are you defining the _DiffuseTextures / _SpecularTextures / _ReflectivityTextures then? Maybe they are set to the same texture array?

[round mauve]

Oh my god

I'm so stupid

        _DiffuseTextures = _SpecularTextures = _ReflectivityTextures = new Texture2DArray(TextureResolution.x,
            TextureResolution.y, _rayTracingObjects.Count, TextureFormat.RGBAFloat, false);

🤦

So this is passed by reference not value when you do this?

I thought this was just a fast way to initialize all 3 as a new tex2darray

[sonic bolt]

Most likely yeah

[round mauve]

Thank you so much man, you're awesome

Hah I'll make sure to keep this in mind for any future code

[woeful sapphire]

Do you need the data on the CPU?
Why not do all in a shader blit?

I know you're doing a blit now, but why all the read pixlels stuff? IDK the original question. But that read pixels get/set stuff is SLOOOOOW

[sonic bolt]

That's a good point, could blit straight into each slice of a RenderTexture (with dimension Tex2DArray)
I'd assume they are only doing this setup in Start/Awake/OnEnable now though and not every frame so probably isn't that bad.

[round mauve]

Yeah right now I'm doing this only when "Rebuilding" the scene with updated textures and mesh data

but thats a much more efficient idea, I'll try doing a blit for it instead just to save on some time

But actually speaking of preparing the compute shader, it takes an awfully long time for objects with over a few thousand tris, like up to 10 seconds

I'm actually running in a loop to assign the mesh's vertex data to my Tris buffer

I never bothered with making this slower as this was only being called when i press a button to do so, but I now am curious about how I'd optimize this

[sonic bolt]

Not optimsation related but it's a little weird to apply the localToWorld matrix on the uvs

[round mauve]

I changed that

and I was gonna google that in a bit actually my UVs dont scale correctly

That was just an attempt to fix the issue

Fixed

really annoying how the UVs near the poles of a tesselated sphere get weird tho