Question Passing data from vert/frag shader to compute shader

I'm trying to do some shadow calculations in a compute shader and I want to send some extra data along with depth buffer to it. Is there a way to do that without reading it through cpu? It seems that reading compute buffers in vertex shaders is totally fine and works without issues, but the other way around (i.e. writing some data to buffer in vertex function and then accessing it in compute shader) is tricky. I managed to do it using async readback inside a command buffer, but performance is terrible as expected.

Anyone has any info on that?

 

Perhaps https://forum.unity.com/threads/graphicsbuffer-mesh-vertices-and-compute-shaders.777548/ will work for you? It works from compute>vert, but I don't know if it will work same frame from vert>compute, but I don't see why not.