VInterpolate

R3VECTOR *VInterpolate(R3VECTOR *r, R3FLOAT t, R3VECTOR *v1, R3VECTOR *v2);

r - result

Address of the result vector 'r'

Linear interpolation. For example: VInterpolate(&r, 0.0, &v1, &v2) results 'v1'. VInterpolate(&r, 1.0, &v1, &v2) results 'v2'. VInterpolate(&r, 0.5, &v1, &v2) results mid point of v1 and v2