Autodesk 12812-051462-9011 User Guide 3 - Page 326

■ Templates - allow fast access to settings combinations for common materials. ■ Physically accurate - the material is energy conserving, making it impossible to create shaders that break the laws of physics. ■ Glossy performance - advanced performance boosts including interpolation, emulated glossiness, and importance sampling. ■ Tweakable BRDF (bidirectional reflectance distribution function) - the user can define how reflectivity depends on angle. ■ Transparency - "Solid" or "thin" materials: transparent objects such as glass can be treated as either solid (refracting, built out of multiple faces) or thin (nonrefracting, can use single faces). ■ Round corners - simulate fillets to allow sharp edges to still catch the light in a realistic fashion. ■ Indirect Illumination control - set the final gather accuracy or indirect illumination level on a per-material basis. ■ Oren-Nayar diffuse - allows "powdery" surfaces such as clay. ■ Built-in Ambient Occlusion - for contact shadows and enhancing small details. ■ All-in-one shader - photon and shadow shader built in. ■ Waxed floors, frosted glass and brushed metals - all fast and easy to set up. Physics and the Display The Arch & Design material attempts to be physically accurate, hence its output has a high dynamic range. How visually pleasing the material looks depends on how colors inside the renderer are mapped to colors displayed on the screen. When rendering with the Arch & Design material it is highly recommended that you operate through a tone mapper/exposure control such as the mr Photographic Exposure Control on page 6744 in conjunction with gamma correction on page 7758, or at the very least use gamma correction. mental ray Materials | 5581