Question A way to reference texture across CommandBuffers?

Hello,
I want to set texture from commandBufferA and get that texture from commandBufferB that runs after the A. It is possible to cmd.SetGlobalTexture but there's no GetGlobalTexture where I can access it.

I've tried creating RenderTargetIdentifier with global texture name (tried with both texture and property names) and using that, but doesn't work.

Unity provided some way to do these kind of things like BuiltinRenderTextureType enum that has Depth, RenderTexture options but no Shadowmap & Screenspace Shadowmap.
There's also BuiltinRenderTextureType.PropertyName option but not sure if it's what I am looking for and don't know how to use it (Unity Documentation don't have any samples).

 

Summoning the shader GODS (help pls ): @bgolus @Aras

 

The way I've worked around this is by creating a render texture outside of the command buffers and assigning both command buffers to use that. Temporary render textures created inside a command buffer may be released immediately after the command buffer finishes, so you can't really use them across multiple command buffers or with objects in the scene.

 

My current approach is getting it from previous frame:

Code (CSharp):

1. tex_shadowmap = Shader.GetGlobalTextute("get_ShadowMap");
2. cmdLight.SetGlobalShader("get_ShadowMap", BuiltinRenderTextureType.CurrentActive);
3.  

But it isn't perfect, it has some issues:
1) Texture will always be 1 frame behind everything else.
2) The very first frame texture will be null.

It's really sad that to see that unity never implemented such simple command (GetGlobalXXX for CommandBuffers) that can be really useful in many cases.

 

But I do not have access to other CommandBuffer. Just need to acces global texture within CommandBuffer.
Something similar to this: (this is not a working solution)

Code (CSharp):

1. cmdA.SetGlobalTexture("get_ShadowMap", BuiltinRenderTextureType.CurrentActuve(;
2. light.AddCommandBuffer(cmdA);
3.  
4. cmdB.SetGlobalTexture("_ShadowMap", "get_ShadowMap");
5. cmdB.DrawMesh... // with shadowmap set
6. camera.AddCommandBuffer(cmdB);

But the ones I want to access aren't immediately released since they're being referenced in further passes.