I''ve recently converted over to triangle strips, and the gain in performance has obviously been worth it. But here''s the question: how the hell do I texture triangle strips? Here''s an example algorithm I have which goes through all the vertices in my terrain. This actually produces one strip for every "line" in my terrain ... Note that I keep my vertices in one array, but cycle through it as if it were two-dimensional.

      for (int i = 0; i < m_height - 1; i++) {
         glBegin(GL_TRIANGLE_STRIP);
            for (int j = 0; j < m_width - 1; j++) {
               DrawVertex[(i*m_width)+j];
               DrawVertex[((i+1)*m_width)+j]; // vertex above
            }
         glEnd();
      }
 

So how do I texture that? Obviously I could put a huge texture overtop with ease - but that''s not what I want. I mean, certain points will need to denote texture coords twice at that point (the end of a texture, beginning of another, etc.). Solutions? I''ve heard something about glTexGen ... but I''m not sure if that''s leading in the right direction. - Ben

If you only want to change texture coordinates drastically (not textures themselves) I would insert a degenerate triangle where you need it.

Do a google search for degenerate triangle strips to find more I guess.

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