CommandBuffer.DrawMeshInstanced Can Not Received Shadows in unity2018.4 forward rendering

Hi, man. I meet the shadow problem, with 2018.4 , Commandbuffer.DrawMeshInstanced, unity standard shader, forward pass, no screenspace shadow.(when use screenspace shadow it can work, just copy texture in AfterScreenspaceMask event, other process is the same)
I Copied the ShadowTexture from the AfterShadowMapPass(or AfterShadowMap) event, and use cmd.SetGlobalTexture("_ShadowMapTexture", shadowMapID) in my defined CMD which executed in CameraEvent.AfterForwardOpaque event.
I checked the framebuffer infos, and make sure my object shader infos were as same as the object in Unity self Opaque pipeline, but no shadow shown!
Am i missing some keywords?
@zeroyao @antoinel_unity
Codes like this:

Code (CSharp):

1. shadowMapID = Shader.PropertyToID("_ShadowMapTexture");
2.  
3.         Transform tr1 = GameObject.Find("Cube").transform;
4.         Transform tr2 = GameObject.Find("Cube (1)").transform;
5.         matrix4X4s = new Matrix4x4[2] { tr1.localToWorldMatrix, tr2.localToWorldMatrix, };
6.         mesh = tr1.GetComponent<MeshFilter>().sharedMesh;
7.         material = tr1.GetComponent<Renderer>().sharedMaterial;
8.         material.enableInstancing = true;
9.  
10.         CommandBuffer shadowCaster = new CommandBuffer();
11.         shadowCaster.DrawMeshInstanced(mesh, 0, material, material.FindPass("SHADOWCASTER"), matrix4X4s);
12.         mainLight.AddCommandBuffer(LightEvent.AfterShadowMapPass, shadowCaster);
13.  
14.         CommandBuffer shadowCMD = new CommandBuffer();
15.         shadowCMD.SetShadowSamplingMode(BuiltinRenderTextureType.CurrentActive, ShadowSamplingMode.RawDepth);
16.         shadowCMD.GetTemporaryRT(shadowMapID, 4096, 4096, 32, FilterMode.Bilinear, RenderTextureFormat.Depth);
17.         shadowCMD.Blit(BuiltinRenderTextureType.CurrentActive, shadowMapID);
18.         mainLight.AddCommandBuffer(LightEvent.AfterShadowMap, shadowCMD);
19.  
20.         cmd = new CommandBuffer();
21.         material.EnableKeyword("SHADOWS_SCREEN");
22.         cmd.SetGlobalTexture("_ShadowMapTexture", shadowMapID);
23.         cmd.DrawMeshInstanced(mesh, 0, material, 0, matrix4X4s);
24.         cmd.DrawMeshInstanced(mesh, 0, material, 1, matrix4X4s);
25.         Camera.main.AddCommandBuffer(CameraEvent.AfterForwardOpaque, cmd);

 

Hi~ The same issue, did you fix it? Thank you~

 

did you fix it？QAQ，Thank you！

 

I changed the MainCamera to Deferred Rendering.