OpenGL texture fuzzy

Question

I'm using OpenGL to render this cereal box but the textures look messed up (see below). When I change the view just a little bit, the way it's messed up is changed. What do you think is causing the problem?

Answer 1

Possible reason #1 (IMO most likely): duplicated geometry. I.e. in your scene, you're rendering 2 boxes with the exact same coordinates, one is gray, another one is textured.

Possible reason #2: wrong mipmaps. I.e. you've specified e.g. GL_NEAREST_MIPMAP_NEAREST filtering, but you've forgot to load/generate all the mipmap levels of your texture.

Possible reason #3: your render target is 8 bits per pixel.