Renderer Panel (mental ray)
The Renderer panel includes settings for optimizing mental ray rendering as well as controls for camera effects, shadows, and displacement shading.
Global Illumination Panel
The Global Illumination panel controls provide methods for rendering bounced light within an environment, including final gathering, caustics, and photons.
Processing Panel
The Processing panel is an additional Render Setup dialog panel whose controls relate to managing how the renderer operates. It also lets you generate diagnostic renderings in pseudo color.