| Value | Meaning |
|---|---|
| GL_POLYGON | boundary of a simple, convex polygon |
| GL_TRIANGLES | triples of vertices interpreted as triangles |
| GL_QUADS | quadruples of vertices interpreted as four-sided polygons |
| GL_TRIANGLE_STRIP | linked strip of triangles |
| GL_TRIANGLE_FAN | linked fan of triangles |
| GL_QUAD_STRIP | linked strip of quadrilaterals |