I’m having a bit of a problem with creating a viewing matrix and i reckon I’ve done it so terribly wrong. I create my U V and N as follows:
N->x=(position->x-direction->x); N->y=(position->x-direction->y); N->z=(position->z-direction->z); U=CrossProd_Vector3(upVector, N); V=CrossProd_Vector3(N, U); CU=DotProd_Vector3(position, U); CV=DotProd_Vector3(position, V); CN=DotProd_Vector3(position, N);
all my functions for the dot products and cross products are working. If i set the position to (0, 0, 0) it does actually work but anything else it all just disapears. upvector is (0, 1, 0) and direction is (0, 0, -1).
If anyone could help i would be most grateful.