default material.txt (1.0 KB)
custom material.txt (1.3 KB)
When exporting a model to pov-ray ray-tracer with the default material you get the correct format file. But change the material to a custom form and it fails with the
#declare Object1Material = “”
object { Object1 material { Object1Material }}
lines.
You are declaring a material as nothing and then trying to use it 
I am having the same issue in Rhino 6 and 7. If I export with any additional material other than the default material, then I get a .POV file which tries to "#include “C:/Program Files/Rhino 7/Plug-ins/materials.inc” which doesn’t exist. It would be nice if Rhino would output the needed #include files and/or already have some defaults set up for the basic material types (metal, glass etc) and modify for color etc in the main .POV file.
Charles