To Use Motion Blur with the Scanline Renderer

To set up an object for motion blurring:

1. Select the object to blur.
2. Right-click the object, and then choose Properties from the quad menu.

   3ds Max opens the Object Properties dialog.

3. In the Motion Blur group, click By Layer to change it to By Object.

   The other Motion Blur controls are now enabled.

4. In the Motion Blur group, choose either Object or Image.
5. If you chose Image, you can adjust the Multiplier spinner. This increases or decreases the length of the blurred object's streak.
6. Click OK.

To add motion blur when you render the animation:

1. Click Render Setup.

   3ds Max opens the Render Setup dialog

2. On the Default Scanline Renderer rollout, turn on Apply in the Object Motion Blur group or the Image Motion Blur group.
   • For Object Motion Blur, set Duration, Duration Subdivisions, and Samples.
   • Increase Duration to exaggerate the motion blur effect. Decrease it to make the blur more subtle.
   • If Samples is less than Duration Subdivisions, the slices used are selected randomly, giving a grainy look to the blur. If Samples equals Duration Subdivisions, the blur is smooth. The smoothest blur results from larger, equal values of these two parameters, but be aware that this can slow down rendering by a factor of three to four.
   • For Image Motion Blur, adjust Duration and Apply to Environment Map.
   • Increase Duration to exaggerate the streaking. Decrease it to make it more subtle.
3. Turn on Apply to Environment map to have camera orbit movement blur the environment map. This works only with Spherical, Cylindrical, or Shrink-Wrapped environments.
4. Set other rendering parameters, and then click Render.