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Chapter 4. Changes in Rendering > New Multi-Pass Effects

New Multi-Pass Effects

3ds max 4 introduces a new implementation of two commonly needed effects: Motion Blur and Depth of Field. These fall under the new category of Multi-Pass effects because of the method in which they are created. When they are used, max renders multiple passes and blends them together to produce the finished frame, hence the name. One of the advantages of the Multi-Pass effects is that they can be rendered in the viewports with hardware acceleration rather than using only the software renderer. This enables the user to make accurate adjustments to Motion Blur and Depth of Field settings without having to go through the usual render and tweak process.

Using these effects requiress the use of a camera, and the controls for these Multi-Pass effects are found in the camera’s Modifier panel in the Parameters rollout (see Figure 4.1).


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