Assign RenderTextures to Materials' property

Unity Engine
, ,
1

I assign RT-A to material A, RT-B to material B, but i got RT-A on material B and RT-B on material-A (by frame debugger). I guess command buffer is execute async on rendering thread after a few frames. But texture is setted every frame on main thread. Then objects are rendered to a rt that was released to pool then get by another material.
I also tried to release tempRTs at next frame. but it didn’t change anything.

note: the ‘_ShadowMap’ temporary render texture below is a R8 mask，and light is a custom component.

foreach(light of lights)
{
  var rt = RenderTexture.GetTemporary(desc);
  _tempRTs.Add(rt);
 //_cmd.GetTemporaryRT(propId, size, size, 0, FilterMode.Bilinear, RenderTextureFormat.R8);
  _cmd.SetRenderTarget(rt, RenderBufferLoadAction.DontCare, RenderBufferStoreAction.Store);
  _cmd.ClearRenderTarget(false, true, Color.white);
  _ctx.ExecuteCommandBuffer(_cmd);
  _cmd.Clear();
  _ctx.DrawRenderers(_cullingResults, ref _drawingSettings, ref _filteringSettings);
  // i want to set the result to material
  light.Renderer.sharedMaterial.SetTexture("_ShadowMap", rt);
}
...
/* Render Scene */
_ctx.DrawRenderers(cullingResults, ref drawingSettings, ref filteringSettings);
...
for (int i = _tempRTs.Count - 1; i>=0;i--)
{
    //_cmd.ReleaseTemporaryRT(ShadowMapIDs[i]);
    RenderTexture.ReleaseTemporary(_tempRTs[i]);
}
_tempRTs.Clear();
2

:frowning: