Hi again, I've tried nesting three concentric spheres thus:
sphere {
<0,0,0>,1
pigment {rgbt 1}
}
sphere {
<0,0,0>,0.9
pigment {rgbt 1}
}
sphere {
<0,0,0>,0.8
pigment {rgbt 1}
}
and the interior sphere ends up black even though it should stay invisible.
Is this an issue with transparency in POV-Ray?
