Gumby Question 1 What is a vertex buffer? Gumby Question 2 Can use one in OpenGL Gumby Question 3 I''ve been told vertex buffers seriously improve the polygon count you can push. Does this apply to OpenGL? Gumby question 4 If vertex buffers work with Open GL, Why the hell have I wasted the last two weeks working on a ROAM implementation (btw I have an NVidia TNT Ultra) Tks Keef ----------------------- glDisable(WORK); glEnable(GL_CODING);

There are no vertex buffers in OpenGL. They only exist in Direct3d. What OpenGL has is Vertex Arrays and Display Lists. Both speed up your drawing tremendously.

ROAM has nothing to do with vertex buffers, vertex arrays or display lists.

Nehe has a display list tutorial. The red book has code for vertex arrays. The nvidia developer section has an article titled "OpenGL Performance" that explains what is the fastest method to use for drawing.

Nitzan

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I''ve been incorporating vertex arrays into my game and I have seen a great increase in performance. At least, on my Windows GForce 3 system. I didn''t see much difference on my GF''s Mac G4 ATI Rage tho.