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Cycles particles do not motion blur when rendered unless displayed in 3D view as "rendered"
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Description

Version: 2.70a official (nix 64)

How to reproduce:

  • Open attached file with simple Cycles particle system, bake if necessary, and inspect settings
  • Render a frame with particles in it. Notice that the fast-moving particles are motion blurred as expected.
  • Change display settings of particle system to "point", "circle", or anything but "rendered".
  • Notice that, when rendered again, the particles are not motion blurred.

This is a bug if ever I saw one. The display draw type of the particle system should have no bearing on the motion blur of the particles when rendered.

Event Timeline

Sam Brubaker (rocketman) set Type to Bug.
Sam Brubaker (rocketman) created this task.
Sam Brubaker (rocketman) raised the priority of this task from to Needs Triage by Developer.