Displays a disk with a given inner and outer radius.
Important
TGLDisk properties:
outerradius: Outer radius of the disk
innerradius: The radius of a hole in the center of the disk. If it is left as zero then there is no hole.
Demo:
CVS/Demos/meshes/mushroom∞
Unit:
GLGeomObjects∞
Descends from
TGLQuadricObject.
