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Chapter 47: Rendering with mental ray
FIGURE 47.1
The Preference Settings dialog box includes a panel of mental ray settings.
The Show Visual Final Gather Progress option displays a rough approximation of the render scene as it is
being rendered before waiting for a Final Gather solution. This gives you a quick look at the scene before it
computes a Final Gather solution. You can also select to clear the frame before rendering.
The Messages section lets you specify which messages are displayed as the file renders. Options include
Errors, Log Information, Log Progress, Debug Messages, and whether to write this information to a file.
mental ray Lights and Shadows
If you look in the Lights category of the Create ➪ Lights ➪ Standard Lights menu, you’ll see two mental ray
specific lights: mental ray Area Omni and mental ray Area Spot. These area lights spread light from a
defined area in the Area Light Parameters rollout. By default, all mental lights use the Global Settings for
their illumination values, but by using the mental ray Indirect Illumination rollout, shown in Figure 47.2,
found in the Modify panel, you can override the global settings for the selected light.
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