I''ve been working on this OpenGL demo for a week or two now, and I had things working pretty smoothly. Essentialy, it redners an increasingly more detailed texture over time. Now, to minimize the texture upload time, I use small textures (16x16) in the begining, and then as the resolution increases I bump up the texture size (up to 1024x1024). Well, once I had things going well, I ported the code into the fullscreen app kindly provided on the NeHe site. It still works fine in windowed mode, but in fullscreen mode the texture "dissappears" when I start using the 1024x1024 texture. I''m not getting any errors from glBindTexture or glTexImage2D, and I know that the texture contains "colors", but for some reason it gets mapped as all black. If the program has to drop back down to a lower resolution (let''s say 512x512), the colors appear again, but as soon as it goes back to 1024x1024, back to black... Any thoughts?

All good thoughts... I wouldn''t think that fullscreen would take more memory though, because it''s the same resolution as the window in windowed mode (640x480). You''re definately on the right track though... It works fine on a couple of other machines I tested it on, so I must not be checking carefuly enough for hardware compatability somewhere. The question is, where?

The textre wouldn''t disapear on a Voodoo, it''d get sampled down to 256x256 - I''ve had no end of issues with that this week