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Maniphest T79970

Camera Animation Breaks EEVEE Motion Blur (Two Steps or More)
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Description

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: Radeon Pro 580 ATI Technologies Inc. 4.5.13570 Core Profile Context FireGL 19.30.01.53 26.20.13001.53002

Blender Version
Broken: version: 2.90.0 Beta, branch: master, commit date: 2020-08-19 10:14, hash: rB83c78529b9ef
Worked: First iteration of 2.9 with EEVEE Motion Blur (One Month Ago?)
Caused by rB4f59e4bddcb0: Fix T78452 EEVEE: Motion Blur: Crash when using camera switching

Short description of error
Adding keyframed movement, dolly, pan, or tilt, to the active camera cancels EEVEE Motion Blur, when using more than 1 step. Seems to also degrade the image; edges become jagged.

Exact steps for others to reproduce the error

  1. Open included file, hit F12 Render. Notice the lack of motion blur.
  2. Look at the lower portion of the screen; "Action Editor" is active. Leave on frame 30 and "Unlink" camera action.
  3. F12 render a second time and observe working motion blur.

EEVEE Motion Blur Test.blend803 KBDownload

Revisions and Commits

rB Blender
D8676rB35ef42d967c7 Fix T79970 EEVEE: Camera Animation Breaks Motion Blur (Two Steps or More)

Related Objects

Event Timeline

Timothy Cook (CookItOff) created this task.Aug 21 2020, 1:47 AM
Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Confirmed.Aug 21 2020, 10:52 AM
Philipp Oeser (lichtwerk) added a project: EEVEE & Viewport.
Philipp Oeser (lichtwerk) changed the subtype of this task from "Report" to "Bug".
Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).

Can confirm.
Bisecting now.

Philipp Oeser (lichtwerk) mentioned this in T79807: Eevee Motion blur not working with camera movement.Aug 21 2020, 10:54 AM
Philipp Oeser (lichtwerk) merged a task: T79807: Eevee Motion blur not working with camera movement.
Philipp Oeser (lichtwerk) added a subscriber: Brandon (Brandon777).
Philipp Oeser (lichtwerk) triaged this task as High priority.Aug 21 2020, 11:32 AM
Philipp Oeser (lichtwerk) edited projects, added BF Blender (2.90); removed BF Blender.

Caused by rB4f59e4bddcb0: Fix T78452 EEVEE: Motion Blur: Crash when using camera switching

Philipp Oeser (lichtwerk) assigned this task to Clément Foucault (fclem).Aug 21 2020, 11:33 AM
Philipp Oeser (lichtwerk) updated the task description. (Show Details)
Philipp Oeser (lichtwerk) added a subscriber: Clément Foucault (fclem).
Dalai Felinto (dfelinto) moved this task from Backlog to bcon4: Show Stoppers on the BF Blender (2.90) board.Aug 21 2020, 3:20 PM
Jeroen Bakker (jbakker) added a revision: D8676: Fix T79970 EEVEE: Camera Animation Breaks Motion Blur (Two Steps or More).Aug 24 2020, 7:46 AM
Clément Foucault (fclem) closed this task as Resolved by committing rB35ef42d967c7: Fix T79970 EEVEE: Camera Animation Breaks Motion Blur (Two Steps or More).Aug 24 2020, 11:25 AM
Clément Foucault (fclem) added a commit: rB35ef42d967c7: Fix T79970 EEVEE: Camera Animation Breaks Motion Blur (Two Steps or More).
Germano Cavalcante (mano-wii) mentioned this in T79846: EEVEE soft shadows not working with animated cam and motion blur steps higher than 1.Aug 25 2020, 4:01 PM
Germano Cavalcante (mano-wii) merged a task: T79846: EEVEE soft shadows not working with animated cam and motion blur steps higher than 1.
Germano Cavalcante (mano-wii) added subscribers: Irfan Celik (irfan), Germano Cavalcante (mano-wii).