Here’s my deal: I’ve got an object which I want to be mostly transparent, except for some spots. I’ve made up an image map which is a PNG; the PNG Is transparent everywhere excpet where I want color.
Now I want to map this to a sphere so that where there is color, that color shows up, but everywhere else it is transparent. The painting should only be on the surface of the sphere.
How does one do this? I’ve figured out to do UseAlpha in the texture block, so that I get the colored bits of the image map on top of the material’s underlying color. However, when I turn the Alpha of the material all the way down, the texture colors go away as well. How do I define the material’s underlying color as “transparent”, with the spots on the image map to be painted on top?