Do OpenGL polygons need to be convex?

BlitzMax Forums/BlitzMax OpenGL Programming/Do OpenGL polygons need to be convex?

SofaKng
 #1
Do OpenGL polygons need to be convex?

It seems like I can draw CONCAVE polygons if I change the glPolygonMode to GL_LINE, but if I use GL_FILL then it forces my polygon to be convex.

Is this normal?

Thanks...