Very slow screen redraw or refresh when in texture preview mode. #126861

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filbert · 2024-08-28T00:54:56+02:00

filbert commented

2024-08-28 00:54:56 +02:00

System Information
Operating system: Windows-10-10.0.19045 64 Bits
Graphics card: NVIDIA GeForce RTX 3090 Ti/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 560.94

Blender Version
Broken: version: 4.2.0, branch: blender-v4.2-release, commit date: 2024-07-16 06:20, hash: a51f293548ad
Worked: (newest version of Blender that worked as expected)

Short description of error
[Please fill out a short description of the error here]

Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]

It does not matter what file or how large the file is. Screen redraw is extremely slow when in texture preview mode. If I preview or change a texture the screen update is from 11 to 20 seconds to refresh. I'm a technical illustrator and my files are pretty big most of the time. Average size 1 gig. I never had an issue like this. The problem started in Blender 4. I've updated Nvidia's driver and even tried to go back to an older driver that I know worked before but no luck. It's almost impossible to work now.

Thank you,
Any help is appreciated.
Phil

**System Information** Operating system: Windows-10-10.0.19045 64 Bits Graphics card: NVIDIA GeForce RTX 3090 Ti/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 560.94 **Blender Version** Broken: version: 4.2.0, branch: blender-v4.2-release, commit date: 2024-07-16 06:20, hash: `a51f293548ad` Worked: (newest version of Blender that worked as expected) **Short description of error** [Please fill out a short description of the error here] **Exact steps for others to reproduce the error** [Please describe the exact steps needed to reproduce the issue] [Based on the default startup or an attached .blend file (as simple as possible)] It does not matter what file or how large the file is. Screen redraw is extremely slow when in texture preview mode. If I preview or change a texture the screen update is from 11 to 20 seconds to refresh. I'm a technical illustrator and my files are pretty big most of the time. Average size 1 gig. I never had an issue like this. The problem started in Blender 4. I've updated Nvidia's driver and even tried to go back to an older driver that I know worked before but no luck. It's almost impossible to work now. Thank you, Any help is appreciated. Phil

system-info.txt

28 KiB

NH-40709 DUCT for Blender.blend

81 MiB

filbert added the

labels 2024-08-28 00:54:57 +02:00

YimingWu commented

2024-08-28 08:29:25 +02:00

Hi! If the lag is mainly on the first time you switch to render preview, and also when switching texture, it should be normal since the lag is just the new way blender processes shader. Subsequent switches should be quick enough and not take 10-20 seconds.

Could you try starting blender with --gpu-debug and give us the log? Instructions here. Thanks!

Hi! If the lag is mainly on the first time you switch to render preview, and also when switching texture, it should be normal since the lag is just the new way blender processes shader. Subsequent switches should be quick enough and not take 10-20 seconds. Could you try starting blender with `--gpu-debug` and give us the log? [Instructions here](https://docs.blender.org/manual/en/latest/troubleshooting/crash.html#windows). Thanks!

YimingWu added

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Status

Needs Triage

labels 2024-08-28 08:31:12 +02:00

Pratik Borhade commented

2024-08-28 08:34:25 +02:00

Hi, thanks for the report. Changes done to node tree are reflecting immediately for me in both material preview and viewport render.
Could you check if this is due to enabled add-ons/extensions?: File > Defaults > Load Factory Settings -> Open NH-40709 DUCT for Blender.blend without closing blender (otherwise default preferences are lost)

Hi, thanks for the report. Changes done to node tree are reflecting immediately for me in both material preview and viewport render. Could you check if this is due to enabled add-ons/extensions?: `File > Defaults > Load Factory Settings` -> Open `NH-40709 DUCT for Blender.blend` without closing blender (otherwise default preferences are lost)

Pratik Borhade commented

2024-08-28 08:35:35 +02:00

@ChengduLittleA is fast :)

😆 1

Pratik Borhade commented

2024-10-07 12:49:25 +02:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

Pratik Borhade closed this issue

2024-10-07 12:49:28 +02:00

Blender Bot added

Status

Archived

and removed

Status

Needs Information from User

labels 2024-10-07 12:49:31 +02:00

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