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Extreme lag when zoomed on a lowpoly model on Viewport Rendering + Packaged textures don't properly load #125950

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opened 2024-08-06 10:30:36 +02:00 by MaxSpec · 10 comments
MaxSpec commented 2024-08-06 10:30:36 +02:00
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System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: AMD Radeon R9 200 Series ATI Technologies Inc. 4.6.14830 Core Profile Context 22.6.1 27.20.20913.2000

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
Heavy lag when zoomed in on the model in Viewport Rendering (Material Preview or Rendered) + No proper texture rendering despite being set up right.

Exact steps for others to reproduce the error

  1. Use an existing model
  2. Turn on Viewport Rendering
  3. Zoom into the model (Strangely enough, this issue sometimes disappears or reappears when switching windows)
**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: AMD Radeon R9 200 Series ATI Technologies Inc. 4.6.14830 Core Profile Context 22.6.1 27.20.20913.2000 **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** Heavy lag when zoomed in on the model in Viewport Rendering (Material Preview or Rendered) + No proper texture rendering despite being set up right. **Exact steps for others to reproduce the error** 1. Use an existing model 2. Turn on Viewport Rendering 3. Zoom into the model (Strangely enough, this issue sometimes disappears or reappears when switching windows)
blender_KVZ2N4g5HE.png
323 KiB
blender_KVZ2N4g5HE.png
MaxSpec added the
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 labels 2024-08-06 10:30:37 +02:00
MaxSpec commented 2024-08-06 10:42:33 +02:00
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.blend file in question:

.blend file in question:
funnyrobothead.blend
441 KiB
Pratik Borhade commented 2024-08-06 12:15:17 +02:00
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Hi, thanks for the report. Re material rendering issue: #124984 is to look at.
Re performance: adjusting pixel size might help: Performance > Viewport > Pixel size. Can you check?

Hi, thanks for the report. Re material rendering issue: #124984 is to look at. Re performance: adjusting pixel size might help: `Performance > Viewport > Pixel size`. Can you check?
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 labels 2024-08-06 12:15:27 +02:00
MaxSpec commented 2024-08-06 16:59:10 +02:00
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Pixel size does improve the performance but that was not an issue on pre-4.x.
After reinstalling the drivers, the first issue seems to have disappeared completely, but I need to test it a little more.
Second issue however, still persists. Textures do load on pre-4.x without any issue whatsoever.
Appended model with textures in 3.6.9:

Pixel size does improve the performance but that was **not an issue** on pre-4.x. After reinstalling the drivers, the first issue seems to have disappeared completely, but I need to test it a little more. Second issue however, still persists. Textures do load on pre-4.x without any issue whatsoever. Appended model with textures in 3.6.9:
blender_KjeR8WrRKH.png
154 KiB
blender_KjeR8WrRKH.png
MaxSpec commented 2024-08-06 17:08:49 +02:00
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Even made a test render in 3.6.9, blend file included.

Even made a test render in 3.6.9, blend file included.
testrender.png
1.4 MiB
369robotrender.blend
1.8 MiB
testrender.png
MaxSpec commented 2024-08-06 17:13:53 +02:00
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Rendering on 4.2, however, shows the textures, albeit quite differently from 3.6.9.

**Rendering** on 4.2, however, shows the textures, albeit quite differently from 3.6.9.
testrender42.png
1.5 MiB
42robotrender.blend
448 KiB
testrender42.png
MaxSpec commented 2024-08-06 17:17:26 +02:00
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Pixel size does improve the performance but that was not an issue on pre-4.x.
After reinstalling the drivers, the first issue seems to have disappeared completely, but I need to test it a little more.

That first issue still persists, no change.

> Pixel size does improve the performance but that was **not an issue** on pre-4.x. > After reinstalling the drivers, the first issue seems to have disappeared completely, but I need to test it a little more. That first issue still persists, no change.
Pratik Borhade commented 2024-08-07 05:36:33 +02:00
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Pixel size does improve the performance but that was not an issue on pre-4.x.

Good to know. It does not exist in 4.1 because the entire eevee engine is re-written for 4.2 with new features.
Performance impact might be expected on older hardware which can be avoided by given workaround or by disabling ray tracing.
Someone from EEVEE-module may able to expand on this. Forwarding to them.

BTW @iss can you confirm this on AMD GPU?

> Pixel size does improve the performance but that was not an issue on pre-4.x. Good to know. It does not exist in 4.1 because the entire eevee engine is re-written for 4.2 with new features. Performance impact might be expected on older hardware which can be avoided by given workaround or by disabling ray tracing. Someone from EEVEE-module may able to expand on this. Forwarding to them. BTW @iss can you confirm this on AMD GPU?
Richard Antalik commented 2024-08-12 23:44:35 +02:00
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Can't reproduce this issue on RX 550. On Vega 7 mesh is just black, but no lags. Also my driver is probably old.

Can't reproduce this issue on RX 550. On Vega 7 mesh is just black, but no lags. Also my driver is probably old.
Richard Antalik added
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 labels 2024-08-12 23:45:49 +02:00
Bart van der Braak added
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 labels 2024-08-14 12:53:31 +02:00
Pratik Borhade commented 2024-09-12 09:02:29 +02:00
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Hi, any improvements in texture after enabling Performance > high quality normals?
Re slowdown, do you experience this in render mode of other files?
Have you checked with factory defaults?: File > Defaults > Load Factory Settings

Hi, any improvements in texture after enabling `Performance > high quality normals`? Re slowdown, do you experience this in render mode of other files? Have you checked with factory defaults?: `File > Defaults > Load Factory Settings`
Pratik Borhade added
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 labels 2024-09-12 09:02:39 +02:00
MaxSpec commented 2024-09-14 03:25:32 +02:00
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Slowdowns are even worse without zooming in on higher poly models when on R9 270x.
My settings aren't changed from default, difference being max undo steps and custom weightpaint.
Haven't yet tried 'High Quality Normals' option, will try it out later this day.

Slowdowns are even worse without zooming in on higher poly models when on R9 270x. My settings aren't changed from default, difference being max undo steps and custom weightpaint. Haven't yet tried 'High Quality Normals' option, will try it out later this day.
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