Autodesk 12812-051462-9011 User Guide 3 - Page 1040

Max. Displace Controls the maximum offset, in world units, that can be given to a vertex when displacing it. This value can affect the bounding box of an object. Default=20.0. TIP If displaced geometry appears to be "clipped," try increasing the value of Maximum Displace. NOTE When using placeholders (see the Translator Options rollout on page 6316), if this value is larger than it needs to be, it can reduce performance. If you experience slow times while displaced objects when Use Placeholder Objects is on, try lowering the Max. Displace value. Max. Subdiv. Controls the extent to which mental ray can recursively subdivide each original mesh triangle for displacement. Each subdivision recursion potentially divides a single face into four smaller faces. Choose the value from the drop-down list. Range=4 to 64K (65,536). Default=16K (16,384). For example, using the default value means that mental ray can subdivide each displaced mesh triangle into as many as 16,384 smaller triangles. Indirect Illumination Panel Rendering menu/main toolbar > Render Setup > Render Setup dialog > Indirect Illumination panel Note: The Processing panel appears only when mental ray is the active renderer. The Indirect Illumination panel controls concern themselves with methods for rendering bounced light within an environment, including final gathering, caustics, and photons. Final Gather Rollout (mental ray Renderer) Rendering menu/main toolbar > Render Setup > Render Setup dialog > Indirect Illumination panel > Final Gather rollout Note: The Indirect Illumination panel appears only when the mental ray renderer is the currently active renderer. Final gathering is a technique for estimating global illumination for a given point by either sampling a number of directions over the hemisphere over that point (such a set of samples is called a final gather point), or by averaging a number of nearby final gather points since final gather points are too mental ray Renderer | 6295