I started a thread here so I could attach some files.
[RELATED TO THIS THREAD]
You need this build of Blender to use the attacvhed BLEND file.
I have done a simple test using a single sphere as a point distribution object and using a cube for the volume.
One of the bugs I discovered is that the ALPHA channel is not “real”. I am attching an image to illustrate this. The alpha is of the cube, not the actual volume. I call this bug, because it inhibits usability but I do realize this feature is still in development.
ras_volumetric_shader.blend (218 KB)