3ds Max 9 Bible

You can change the hair render settings by opening the Effects panel using the Rendering Effects menu. The Render Settings button in the Tools rollout provides quick access to the Effects panel. The Hair and Fur rollout includes settings for the Hairs and Lighting rendering methods.

Hairs can be rendered using three options. The Buffer method renders each hair individually and combines the effect. It uses minimal memory requirements. When the buffer method is selected, you can choose the Raytrace Reflections/Refractions option for better quality. The Geometry method converts each hair into a geometry object that is rendered. The mr Prim method renders hair using the mental ray renderer. For this option, you can set the Voxel Resolution used to render hairs.

Motion Blur can be enabled to make hairs that are moving fast appeared blurred. The Oversampling setting adds an anti-aliasing pass to the rendering. The options include Draft, Low, Medium, High, and Maximum. The Composite Method option depends on the rendering method that is selected. A list of occlusion objects and a setting for Shadow Density also are available.

By default, all lights are used to light hair, but if a spotlight is added to the scene, you can select the spotlight and click the Add Hair Properties button at the bottom of the Hair and Fur rollout. This adds a Hair Light Attributes rollout to the Modify panel for the selected spotlight where you can set the Resolution and Fuzz of the shadow map for the hair object cast by the light.