Frame Attribute doesn't update per frame in Cycles/Eevee Next #115489

New Issue

Cartesian Caramel · 2023-11-27T18:28:14+01:00

Cartesian Caramel commented

2023-11-27 18:28:14 +01:00

System Information
Operating system: Windows-10-10.0.22621-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 536.40

Blender Version
Broken: version: 4.1.0 Alpha, branch: main, commit date: 2023-11-21 10:26, hash: b24610053fbc
Worked: (newest version of Blender that worked as expected)

Short description of error
The frame_current view layer attribute does not update per frame in animation playback in Cycles, but works as expected in Eevee (Legacy).
In Eevee Next it only updates as expected when the viewport camera is being moved.

Exact steps for others to reproduce the error
Have a material with the frame_current view layer attribute as the output. Compare animation playback between Cycles/Eevee Next and Eevee (Legacy).

[Based on the default startup or an attached .blend file (as simple as possible)]

**System Information** Operating system: Windows-10-10.0.22621-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 536.40 **Blender Version** Broken: version: 4.1.0 Alpha, branch: main, commit date: 2023-11-21 10:26, hash: `b24610053fbc` Worked: (newest version of Blender that worked as expected) **Short description of error** The frame_current view layer attribute does not update per frame in animation playback in Cycles, but works as expected in Eevee (Legacy). In Eevee Next it only updates as expected when the viewport camera is being moved. **Exact steps for others to reproduce the error** Have a material with the frame_current view layer attribute as the output. Compare animation playback between Cycles/Eevee Next and Eevee (Legacy). [Based on the default startup or an attached .blend file (as simple as possible)]

Frame Attribute Bug Setup.png

44 KiB

View Layer Attribute Cycles Update Bug.blend

742 KiB

Cartesian Caramel added the

labels 2023-11-27 18:28:15 +01:00

Pratik Borhade commented

2023-12-08 06:03:51 +01:00

Hi, thanks for the report. For cycles, we already have a separate report: #103140
re EEVEE-next: I'm not able to confirm it, could you check again in recent 4.1 build: https://builder.blender.org/download/daily/

Hi, thanks for the report. For cycles, we already have a separate report: #103140 re EEVEE-next: I'm not able to confirm it, could you check again in recent 4.1 build: https://builder.blender.org/download/daily/

Pratik Borhade added

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Needs Information from User

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Needs Triage

labels 2023-12-08 06:03:59 +01:00

Cartesian Caramel commented

2023-12-08 16:45:45 +01:00

Hello, apologies for the duplicate. I did not see that year-old report. The Eevee-next issue seems to have been fixed in the past two weeks, as it is working in today's 4.1 build. The Cycles version of the bug is still present.

(Update) The error also occurs in both Eevee and Cycles when a driver has that same attribute.

Hello, apologies for the duplicate. I did not see that year-old report. The Eevee-next issue seems to have been fixed in the past two weeks, as it is working in today's 4.1 build. The Cycles version of the bug is still present. (Update) The error also occurs in both Eevee and Cycles when a driver has that same attribute.

Pratik Borhade commented

2023-12-11 05:18:00 +01:00

The error also occurs in both Eevee and Cycles when a driver has that same attribute.

Hmm, can you share the example?

> The error also occurs in both Eevee and Cycles when a driver has that same attribute. Hmm, can you share the example?

Cartesian Caramel commented

2023-12-11 15:33:30 +01:00

Yes, when you play the animation in the viewport, the driver will not update until you hit play again. This occurs in both the shader and geometry node editors.

Attached is a file that shows the issue.

Yes, when you play the animation in the viewport, the driver will not update until you hit play again. This occurs in both the shader and geometry node editors. Attached is a file that shows the issue.

frame_current Driver Bug.blend

769 KiB

Driver Bug Example.png

501 KiB

Pratik Borhade commented

2023-12-15 11:33:31 +01:00

Thanks. That's bug related to driver not sending depsgraph update to viewport and other editors. I'll open a new report for it.
If you change driver type context property to single property and select the "scene" there, it'll correctly send updates)
I'm closing this report.

Thanks. That's bug related to driver not sending depsgraph update to viewport and other editors. I'll open a new report for it. If you change driver type `context property` to `single property` and select the "scene" there, it'll correctly send updates) I'm closing this report.

Pratik Borhade closed this issue

2023-12-15 11:33:34 +01:00

Blender Bot added

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Archived

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labels 2023-12-15 11:33:35 +01:00

Pratik Borhade referenced this issue

2023-12-15 11:50:41 +01:00

Context property driver type not sending updates during playback #116220