max 32 samples with a partially working path tracer

Another WIP render, with the big teapot's lid opened up

Partial render of inside the teapot. Sphere is using the same emissive material as before, only other light (apart from ambient) is a really bright directional light (with photons mapped). Can you guess where the outer teapot's spout is?

axis-bounded BVHs are poorly optimized for casting inside large objects