Does anybody knows how to read the Cd attribute from the primitive. I am trying to do something like this. It works fine in Mantra but I can't get Redshift to read the color values of the primitive attribute. This is a tutorial from entagma…

http://www.entagma.com/colored-trails-point-advection-rendering/ [www.entagma.com]

I found the solution in this thread here [www.sidefx.com]

Bt Carlson writes:

“I was able to color volume trails in Redshift by first promoting the Cd attribute to primitives as a way to color each strand, then promote again from primitive to point, passing the strand color back to each point, which can then be read in from Redshift via an RS Point Attribute node in a material/shop network.”

Newbie answer to a similar question.

I am new at using Redshift/Houdini and this was vexing me. I wanted to render colored faces using the Cd attribute on primatives in redshift. The only answer I found online was rendering with point color but that didn't work as it created blended colors from the points.

What worked was promoting the prims to verts not points.

Then the RSuserdatacolor node in the shader works like a charm.