How to use new MaterialPropertyBlock uniform API with DrawProceduralIndirect

Hi,

I'm excited about the support for uniform arrays in MaterialPropertyBlocks. However I think there may be a gap left in the new API that I have fallen into.

I'm using Graphics.DrawProceduralIndirect with a shader using uniform arrays. Previously I was able to pass the uniform array through:

material.SetVector("_MyUniform" + i, myVectorArray);

However, this stopped working which makes sense based on the updated description from 5.4b10 release notes:

Shader uniform array support. Uniform arrays can be set by new array APIs on MaterialPropertyBlock. The old way of setting array elements by using number-suffixed names is deprecated

But there does not seem to be a way to pass a material property block to a material when it's drawn through Graphics.DrawProceduralIndirect. So now it seems that I'm stuck without being able to use the new API, and a broken shader using the old API number-suffix approach.

Any advice would be helpful, thank you!

 

Thank you!