Stefan Dösinger wrote:
Am Samstag 28 Oktober 2006 16:44 schrieben Sie:
Its a Radeon Mobility M7 LW, with direct rendering. It has a RV200 core which is a R100 with the memory controller from R200. And it looks like the R100 doesn't support vertex_buffer_objects (couldn't find precise specs).
How well does bf1942 work without vertex buffers? My experiance with my M9 is that it got a 100% performance boost with vbos.
It's playable (~10-15fps), perhaps 1/3-1/5 of w2k performance.
That were rather the vertex fixups, not the vbos themselves. I think you can get most of that gain by improving the vertex buffer code to be able to do vertex fixups without VBOs
Thanks for the tip. I will have a look at it.
Am Freitag 03 November 2006 13:46 schrieben Sie:
Stefan Dösinger wrote:
How well does bf1942 work without vertex buffers? My experiance with my M9 is that it got a 100% performance boost with vbos.
It's playable (~10-15fps), perhaps 1/3-1/5 of w2k performance.
That were rather the vertex fixups, not the vbos themselves. I think you can get most of that gain by improving the vertex buffer code to be able to do vertex fixups without VBOs
Thanks for the tip. I will have a look at it.
With vertex fixups I'd expect it to give 20-25 fps. You can test what you're likely to get with the attached hack.
Warning - it will cause broken colors in some situation. its very bad in bf1942, because it will perfectly switch the allied blue with the axis red and vice versa ;-)
The performance boost from vertex fixups depends on the game and the card. Bf1942 is one of the games that profits most from it, but on really old cards drawStridedSlow seems to be faster than drawStridedFast. I have seen that on a mach64 card, and Lionel Ulmer says he saw it on his TNT2. I have no idea how the radeon 7500 will react.
Stefan Dösinger wrote:
With vertex fixups I'd expect it to give 20-25 fps. You can test what you're likely to get with the attached hack.
Gain with Bf1942 is about 20-30%, not bad for a one liner.
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Markus Amsler -
Stefan Dösinger