Hello folks, I've got a little newbie question about specifying/modifying texture coordinates. When you load a mesh file, which has its own texture coordinates specified with your favourite 3D modelling program, which is the easiest way to modify those texture coords within your C++ code? examples will be very appreciated...
Thanks in advance and congratulations for this great engine and its addons
The easiest way is not to do it at all. Unless all you want is scrolling/rotation/scaling (which you can specify in the material) you'll have to go the painful way of modifying the vertex buffers. But as I just see tanis wrote, you'll have to be more specific about what exactly you want to achieve.
If all you want is a linear transformation like rotation, scaling, shearing etc, use the texture matrix. Otherwise, you could do the transformation inside a vertex program (fast) or write the vertex buffers from your C++ program (relatively slow)