vector / matrix library for OpenGL ES 2.x app

I'm looking for a free 3D vector / matrix library that handles canonical operations ala the OpenGL specification and GLU (dot,开发者_如何转开发 cross, rotations, translations, inversions, look at, etc). This will be used with ES 2.x+ apps. GLU and GLUT are not available.

Platform is iphone OS 4.1 sdk.

Seems like a waste of time to write one of these from scratch but will if necessary.

Thanks.

you can get the source to GLU and port it yourself. it's really just a matter of changing double to float and including it in your project.