Question

I’m trying to display a picture in an openGL environment. The picture’s origninal dimensions are 3648×2432, and I want to display it with a 256×384 image. The problem is, 384 is not a power of 2, and when I try to display it, it looks stretched. How can I fix that?

Answer 1

There’s three ways of doing this that I know of –

• The one Albert suggested (resize it until it fits).
• Subdivide the texture into 2**n-sized rectangles, and piece them together in some way.
• See if you can use GL_ARB_texture_non_power_of_two. It’s probably best to avoid it though, since it looks like it’s an Xorg-specific extension.