hi all. i have a bit strange prob here. i''ve tried my ogl app on a few gpu''s and results are strange. on all of the ATI cards i tried, everything works fine. TNT2, GF2 and GF FX (5600 ?) shows everything ok too. but on two GF4 i''ve tried, i can''t see a thing if i''m rendering in projection mode (the menus in ortho(?) are OK). my app does NOT have any gpu specific code (extensions, shaders, etc.), even multitexturing is done via multipass, bcos i''m stuck with pretty .... hmmmm ..... let''s just say ''simple'' ..... gpu !]

Are the drivers on the GF4 updated?? Also, what type of GF4 is it?

Is depth testing enabled? If so, are you clearing the depth buffer each frame? If not, then you may just be lucky on the other cards.

If you are clearing the depth buffer, then I''m stumped.

yep, i''m cleaning all buffers as it should be done.
everything works ok on bout 20 cards (tested on two more today @work), but only those two gf4 (can''t remember exact type, but both are the same, drivers up to date).

i''m getting totally crushed...
added anonther type of menus, when rendering on ortho and projection are done at same frame, still nothing shows up on projection, though ortho draws fine.

probably i''ll write a quick projection scene just to test, does projection don''t draw only when ortho is around.

will post after test.

I must say there is nothing quite as anoying as this problem. It can be sooo frustrating.


Good luck.

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Original post by Gytis
yep, i''m cleaning all buffers as it should be done.
everything works ok on bout 20 cards (tested on two more today @work), but only those two gf4 (can''t remember exact type, but both are the same, drivers up to date).

i''m getting totally crushed...
added anonther type of menus, when rendering on ortho and projection are done at same frame, still nothing shows up on projection, though ortho draws fine.

probably i''ll write a quick projection scene just to test, does projection don''t draw only when ortho is around.

will post after test.

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What order are you rendering things? Ortho first, projection first? Does projection work properly when you don''t use ortho?