hi everybody

i tried the lesson6 tutorial on nehe and tried to do the same but the problem is that the loadTexture method only loads 256x256 bitmaps.

I can't understand why.. how could I load other resolutions bitmaps?

thx

With GL_TEXTURE_2D you can only load textures with the size 2^n, like 1x1, 2x2, 4x4, 8x8, 16x16, 32x32, 64x64, 128x128, 256x256, 512x512, ...
If you want to use textures with other sizes use something like GL_TEXTURE_RECTANGLE_ARB.
You first have to call glEnable with ARBTextureRectangle.GL_TEXTURE_RECTANGLE_ARB and then use ARBTextureRectangle.GL_TEXTURE_RECTANGLE_ARB instead of GL_TEXTURE_2D in all the other methods.

WiESi

256x128 is valid

The length of each dimension has to be POT, but older cards (im thinking Voodoo) can only deal with square textures, but anything newer than a voodoo will be fine with each dimension being POT but not necessarily the same..

DP