Arnold for Maya Motion-Blur

Software:
Maya 2018 | Arnold 5

  1. In the Render Settings window, Arnold Renderer tab, under Motion Blur,
    Check ‘Enable’.
  2. Set the ‘Length’ attribute to set the Motion-Blur size.
    * the default length of 0.5 means the Motion-Blur will be calculated as a result of a photographic exposure duration of half of a frame duration, or 180 degrees in cinema camera terminology.
  3. Raise the number of Keys to accurately simulate Motion-Blur for very fast rotational motion like helicopter propellers and car wheels.

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Note:
To generate a Motion Vector (Velocity) AOV (also referred to as ‘Render Element’ or ‘Pass’), in order to add the Motion-Blur effect in a compositing software:

  1. The ‘motionvector’ AOV must be added to the AOVs list in the AOVs tab of the Render Settings window.
  2. Motion-Blur must be enabled in the Motion-Blur part of the Arnold Renderer tab in the Render Settings window.
    * Otherwise motion vectors will not be calculated.
  3. In the Diagnostics tab of the Render Settings window, under Feature Overrides, check ‘Ignore Motion Blur’, so Motion-Blur will not be rendered.

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Related posts:

Arnold for Maya Depth of Field (DOF)

Saving multi-channel EXR file with Arnold for Maya

 

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Saving multi-channel EXR with Arnold for maya

Software:
Maya 2018 | Arnold 5

  1. In the Render Settings > Common tab, choose EXR as the output file format.
  2. In the Render Settings > AOVs tab, open the drop-down menu on the right side of one of the AOVs in the list, and choose Select Driver.
    This will bring up the defaultArnoldDriver node Attributes.
  3. In theĀ defaultArnoldDriver node Attributes, under Advanced Output, check Merge AOVs.

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Rendering an animation in Maya and Arnold

Software:
Maya 2018 | Arnold 5

  1. Set a Project Folder or Image output path.
  2. In the Render Settings > Common tab, set the output file format, and in Metadata, set Frame/Animation ext. select an option that isn’t Single Frame.
    * This will make the Frame Range settings available.
  3. Set the Frame Range.
  4. Set the Maya UI to Rendering and choose Render > Render Sequence.

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