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Chapter 11. Photometric Lights: Bouncing... > Controlling Lighting Using Exposure ...

Controlling Lighting Using Exposure Control

As mentioned earlier, radiosity rendering is similar to photography in that if a scene is too bright or too dark to render a good image, you have to use exposure control to adjust the amount of light that reaches the “film” in the process.

When you enabled the Radiosity renderer earlier, you were asked if you wanted to use logarithmic exposure control. You clicked Yes to load it. Exposure control is a post process—that is, the effect is applied after the initial rendering—so you can make adjustments to it and render the scene without recalculating the radiosity solution.


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