Coherent secondary rays for reflections in hybrid ray tracing

A computer-based method for hybrid ray tracing of non-planar surface reflections, created by coherent secondary rays shot at a scene's geometric objects, wherein secondary rays are decoupled from primary rays, comprising:

• a) identifying, independently of primary rays, a non-planar reflective surface in a scene to reflect plurality of geometric objects;
• b) identifying the plurality of geometric objects in the scene;
• and
• c) at each triangle of the non-planar reflective surface:
• creating a frustum directed at the plurality of geometric objects, wherein vertices of the frustum are guided by normal vectors of the triangle;
• generating a packet of secondary rays bounded by the frustum and shot from the triangle toward the plurality of geometric objects;
• and
• traversing the packet of secondary rays in an accelerating structure as a packet of the coherent secondary rays,
• while upon hitting a triangle of a geometric object by a secondary ray, the triangle is sampled and projected onto the triangle of the non-planar reflective surface.