Texture error

OpenGL OpenGL: Basic Coding
1

I was using a 256x256x256 bmp texture to map on a square and it works great.
But I have just tried with another texture (its size is not 256x256, but something like 300x200) and it doesn’t work.
Why? Because the texture is not a square ?
I’m using a LoadBmp function like the Nehe one.

Thanks

2

OpenGL-textures always have to have dimensions that are a power of 2 (there is an extension that can handle other dimensions, but you’re safer with sizes like 64x64, 128x128, 256x256, 512x512…)

3

One small note however, they do not have to be square, e.g. 64 x 256 is perfectly ok.

4

thanks