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View Full Version : Fastest way to draw geom on Radeon 9700



Zeno
11-14-2002, 01:57 PM
Hi all. Due to performance requirements that we have on some upcoming software, I'm testing out the possibility of using Radeon 9700 graphics cards.

I have the program mostly working, so now the fun starts.

Basically, my program needs to draw a lot of geometry. The geometry (in the form of triangle strips) is updated once per frame (on the CPU) then drawn 25 (or so) times. A vertex program is enabled, and the only difference between each of the 25 renderings of this geometry is a parameter to the vertex program.

My question is this: What extension(s) should I look into for getting the maximum performance out of a situation like this? I have seen people talking about VAO, but also heard whispers of a different upcoming extension (vertex_array_store or something).

Thanks for the comments http://www.opengl.org/discussion_boards/ubb/smile.gif

-- Zeno

Humus
11-14-2002, 02:29 PM
For today GL_ATI_vertex_array_object is the way to go. I hope we'll see the multivendor extension soon though.

Humus
11-14-2002, 02:31 PM
For today GL_ATI_vertex_array_object is the way to go. I hope we'll see the multivendor extension soon though.

Zeno
11-14-2002, 02:51 PM
Thanks Humus. I'll get started with grabbing those extensions.

Nice demos on your web site by the way. I can finally run the mandelbrot and phong shaders http://www.opengl.org/discussion_boards/ubb/smile.gif They're SO smooth! I love the new precision.

-- Zeno