tesselation using glu

OpenGL OpenGL: Basic Coding
1

I want to use glu tesselation for tesselating my concave poly’s. I dont get the callback mechanism tough. Could someone show me how i get to the triangles after i have tesselated? Just a simple example?

I used a GLdouble poly[5][3] to put my concave polygon in, then i tesselate:

GLUtesselator* tess = gluNewTess();
gluTessBeginPolygon(tess, NULL);

	gluTessBeginContour(tess);
	for(int i=0; i<5; i++)
		gluTessVertex(tess, poly[i], NULL);
	gluTessEndContour(tess);
	
gluTessEndPolygon(tess);
// get triangles?
gluDeleteTess(tess);

which callbacks would be necessary and what do i do in them if i want to get to the triangles? i dont get how i could get the tesselation info if i have to code what happens in the callbacks myself.

thanks for the advice,
greets

2

The FAQ is still a good place to look at:
OpenGL FAQ

3

indeed it is, didnt think to look there.
thanks mate!