This is an application where ray tracing for primary rays should shine. Instead of having to project thw scene 45 times you only need 45 sets of ray bundles, wh

This is an application where ray tracing for primary rays should shine. Instead of having to project thw scene 45 times you only need 45 sets of ray bundles, which is really efficient. The acceleration stuctures are shared between views. With a few pixel reordering hacks you can essentially generate all viewpoints as a single high resolution frame.