Combination of 2 prisms
2 prisms related parent/child, the inner shell is the parent. You can reverse their relationship by making the outer shell as parent for better control. (Did on purpose to help the understanding of this concept.
Maximum 64 segments on the X axis. Only 1 one segment the Y and Z axis.

This is an experimental texture I made from scratch.
You can study my texture by exporting it and opening the file thus generated.
With the light source applied but no casting shadow. Could be used for anything. Your imagination is the limit!
