Maniphest T79515

No motion blur on moving particles in Eevee
Closed, ArchivedPublicKNOWN ISSUE
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Description

Operating system: Windows 10
Graphics card: Nvidia GTX 1050

Broken: 2.90 beta, 9de5adc6a1a9, August 03, 2020

There is no motion blur in Eevee for moving particles.

Exact steps:

20200804particlenomotionblureevee.blend1 MBDownload

Open blend file and hit render with the particles visible in the shot. Even though they are moving away from the camera, they are not blurred.

Related Objects

Mentioned In: T79393: Eevee motion blur works the other way around
Mentioned Here: T68464: Better Motion Blur
rB9de5adc6a1a9: Fix: Remove debug print added mistakenly

Event Timeline

Stefan (LaStefan) created this task.Aug 4 2020, 2:37 PM

Raimund Klink (Raimund58) added a subscriber: Raimund Klink (Raimund58).Aug 4 2020, 3:13 PM

This comment was removed by Raimund Klink (Raimund58).

Richard Antalik (ISS) changed the task status from Needs Triage to Confirmed.Aug 5 2020, 4:44 AM

Richard Antalik (ISS) mentioned this in T79393: Eevee motion blur works the other way around.

Richard Antalik (ISS) merged a task: T79393: Eevee motion blur works the other way around.

Richard Antalik (ISS) added a project: EEVEE & Viewport.

Richard Antalik (ISS) updated the task description. (Show Details)

Richard Antalik (ISS) added subscribers: Richard Antalik (ISS), Germano Cavalcante (mano-wii).

Clément Foucault (fclem) moved this task from Backlog to Blender 2.91 on the EEVEE & Viewport board.Sep 14 2020, 1:20 AM

Clément Foucault (fclem) edited projects, added BF Blender (2.91); removed BF Blender.

RedMser (RedMser) added a subscriber: RedMser (RedMser).Oct 10 2020, 6:17 PM

The particles have alpha blended material which will not get properly blurred by the post process motion blur. If you use an opaque material or use a higher time step count you will get correct motion blur.

This limitation is documented here https://docs.blender.org/manual/en/latest/render/eevee/render_settings/motion_blur.html.