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Cycles : Motion blur bug
Open, Confirmed, MediumPublic

Description

System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce GTX 1060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 436.48

Blender Version
Broken: version: 2.81 (sub 14), branch: master, commit date: 2019-10-09 18:33, hash: rBe84685286274

Short description of error

On the frame 13 I have a really strong motion blur, but the speed of my camera or my object isn’t changing that much. If I offset the entire animation of the camera even slightly, it disappears.

If I turn the motion blur off, it disappears as well.

Changing the animation of the card does not change anything.

Exact steps for others to reproduce the error

  • Open the file
  • Render frame 13

Details

Type
Bug

Event Timeline

I get the same result. Here's a less noisy version.

Germano Cavalcante (mano-wii) lowered the priority of this task from Needs Triage by Developer to Confirmed, Medium.

I can replicate, but I'm not sure if the problem is in the file or in Cycles.