Hello,
I’ve been working on an animation system based on sprites and textures in ECS but this error simply prevents me from continuing.
I am using Unity 2022.2.0b16 and entities.graphics 1.0.0-pre.15.
As you can see in the gif - the MaterialOverride is only working on every second entity. I am not doing anything complicated here - simply changing the UV position of a material on per instance basis every 16 frames in an IJobForEach. The entity prefab is a simple quad with a material assigned to it and an authoring component to create the animation data.
[BurstCompile]
private partial struct PwgAnimationJob : IJobEntity
{
public EntityCommandBuffer CommandBuffer;
public float DeltaTime;
[BurstCompile]
private void Execute(in Entity entity, in PwgAnimatorData animatorData, in PositionOverrideData positionOverrideData)
{
PwgAnimatorData animator = animatorData;
PositionOverrideData positionOverride;
SizeOverrideData sizeOverride;
animator.Time++;
ref PwgAnimatorBlob animatorBlob = ref animatorData.AnimatorBlob.Value;
ref PwgAnimationClipBlob clip = ref animatorBlob.Clips[animator.ClipIndex];
if (animator.Time < 16)
{
CommandBuffer.SetComponent(entity, animator);
return;
}
animator.Time = 0;
int frameIndex = animator.FrameIndex;
++frameIndex;
if (frameIndex >= clip.SpriteBlobs.Length)
{
frameIndex = 0;
}
PwgSpriteBlob blob = clip.SpriteBlobs[frameIndex];
animator.FrameIndex = frameIndex;
sizeOverride.Value = new float4(blob.Size.x, blob.Size.y, 0, 0);
positionOverride.Value = new float4(blob.Position.x, blob.Position.y, 0, 0);
CommandBuffer.SetComponent(entity, animator);
/*CommandBuffer.SetComponent(sortKey, entity, sizeOverride);*/
CommandBuffer.SetComponent(entity, positionOverride);
}
}
The shader is very simple, both Size and Position properties are set to Override Property Declaration: Hybrid Per Instance.
I am not really sure what I am doing wrong here but it seems that even if I remove the system and job and completely delete all my code to simply switch to a MaterialOverride component made by Unity it simply won’t work on every second entity too.
I would really appreciate any help with this, hopefully I am not the only one struggling with this feature.
