"-" to delimit patch index lists. The patches are all bicubic Bezier
patches, so there are 16 vertices in each patch, and thus the vertex lists
are each 16 entries long. This is analogous to an "indexed polygon", if you
"-" to delimit patch index lists. The patches are all bicubic Bezier
patches, so there are 16 vertices in each patch, and thus the vertex lists
are each 16 entries long. This is analogous to an "indexed polygon", if you