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make sure that in the Motion Blur group, Enable is turned on and Object
is chosen.
The mental ray renderer won't generate motion blur if Image is the chosen
type.
2 On the Render Scene dialog, go to the Renderer panel > Camera Effects
rollout, and in the Motion Blur group turn on Enable.
NOTE With the mental ray renderer, don't use Motion Blur under the
Multi-Pass Effect group of a camera's Parameters rollout.
3 Increase the Shutter value to increase the blurriness caused by motion
blur.
4 On the Render Scene dialog, go to the Rendering Algorithms rollout, and
make sure Ray Trace is turned on.
Motion blur is not rendered when the mental ray renderer uses scanlines
only.
5 Render the scene.
To render with contours:
1 Use the mental ray Connection rollout to assign a contour shader to an
object's material.
The mental ray material also lets you assign a contour shader.
2 On the Render Scene dialog > Renderer panel > Camera Effects rollout,
in the Contours group, turn on Enable.
3 Change the contour output shader if you so desire.
NOTE By default, only one contour contrast and store shader are provided
with 3ds Max. You can adjust the contour contrast shader's settings; the
contrast store shader has no parameters.
4 Render the scene.
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