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View Full Version : How to do multitexturing and tessellation together



maochenhappy
05-06-2008, 09:02 AM
Hi,

This is the first time that I post the question here. Please point me a direction for the question below. Thanks in advance!

I'm trying to do dot3 bump mapping using OpenGL, where the multi-texturing function is used:
glMultiTexCoord2fARB(GLenum texUnit, TYPE coords)

At the same time, I need to tesselate the textured polygon to render ploygons with holes inside. In this case, I need to use:
gluTessVertex(GLUtesselator* tessobj, GLdouble coords[3], void * vertex_data)

However, I can't find a way to do both together. I can't find a way to fit the glMultiTexCoord2fARB(...) function in the GL tesselation routine and vice versa.

Anyone had the similar problem before or has the ideas to get around it? I have an urgent dealine to meet and must sort this out soon. Any comments will be really appreciated.

Many thanks,

Chen