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Part VI: Advanced Modeling
Rendering Hair
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.
Cross-Ref
More on mental ray is covered in Chapter 47, “Rendering with mental ray.” n
Motion Blur can be enabled to make hairs that are moving fast appear 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 (except for direct lights and daylight systems) 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 spot-
light where you can set the Resolution and Fuzz of the shadow map for the hair object cast by the light.

Understanding Cloth

If you drop a shirt over a chair, how does it land? It folds and bunches as it drapes over the solid object.
Also notice how different types of cloth drape differently. Compare how silk reacts verses a terry cloth
towel. Being able to accurately simulate how cloth reacts to scene objects and forces is yet another critical
element that can really make a difference in your final scenes.
Cloth in Max is created using a modifier. This modifier can be applied to any object to make it a cloth
object, or you can specifically create a set of clothes using the Garment Maker modifier. During the process
of making an object into a cloth object, the object is divided into multiple faces using one of several subdi-
vision methods. This provides the mesh with enough resolution to be deformed accurately.
Cloth objects are endowed with characteristics that let them respond to external forces within the scene
including gravity, wind, and collisions with other scene objects. After all the scene objects, forces, and cloth
objects are added to the scene, you can start a simulation that defines how the cloth moves within the scene
under the effect of the other scene objects and forces.

Cross-Ref
This chapter focuses on creating and defining cloth objects. The dynamic nature of cloth is covered in Chapter 44,
“Animating Hair and Cloth.” n

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