INTEGRATE INTEGRATORS!
If you’re having a hard time troubleshooting your render, use the Pxrvisualizer integrator, where you can check geometry normals, wireframes, and other surface issues with ease. The Pxrocclusion integrator is also a great way to check for contact shadows during the layout process. Oh, and switch between all of the integrators interactively for a great way to refine composition and shot framing!