Hi, i'm doing height field raycaster 128x128 rays, and at the end i've got
128x128x2 equal sized triangles

I want to change just texture coordinates, inside them, also geometry can be 2D coded, perspective correction is not so important.

What is the best way to do this

I'm DirectX7 coder, but OpenGL is more wide opened - linux, BE and so on, and I'm searching solutions for both of this