Function buildMatrix

tutorials/multi_instanced_geometry/scene.cpp:125–134

* Build a transformation matrix from individual vectors. */

 * Build a transformation matrix from individual vectors.
 */
__forceinline AffineSpace3fa buildMatrix(const float* localX,
                                         const float* localY,
                                         const float* localZ,
                                         const float* position)
{
  return AffineSpace3fa::translate(Vec3fa(position[0], position[1], position[2]))
       * AffineSpace3fa(LinearSpace3fa(Vec3fa(localX[0], localX[1], localX[2]),
                                       Vec3fa(localY[0], localY[1], localY[2]),
                                       Vec3fa(localZ[0], localZ[1], localZ[2])));
}

/*
 * Add instances to a scene.