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VSE: Artifacts in histogram (NVIDIA) #110976

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opened 2023-08-09 19:06:59 +02:00 by shaqualeek · 13 comments
shaqualeek commented 2023-08-09 19:06:59 +02:00
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System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 535.98

Blender Version
Broken: version: 3.6.1, branch: blender-v3.6-release, commit date: 2023-08-08 12:39, hash: 318aaa6d6bc7
Worked: (newest version of Blender that worked as expected)

Short description of error
image

Exact steps for others to reproduce the error
move the UI region/border and zoom into histogram/chroma vectoroscope/luma waveform and purple artifacts appear. tested on blender 3.5.1, 3.6.1, 4.0a

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 535.98 **Blender Version** Broken: version: 3.6.1, branch: blender-v3.6-release, commit date: 2023-08-08 12:39, hash: `318aaa6d6bc7` Worked: (newest version of Blender that worked as expected) **Short description of error** ![image](/attachments/f8af3d23-c4d5-42ea-bb97-9d6a1d1daeee) **Exact steps for others to reproduce the error** move the UI region/border and zoom into histogram/chroma vectoroscope/luma waveform and purple artifacts appear. tested on blender 3.5.1, 3.6.1, 4.0a
bug.blend
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image.png
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YimingWu commented 2023-08-10 05:29:29 +02:00
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It is possible that this is a driver issue, could be similar to the old stereo view bug.

Could you try using a different version of Nvidia driver?

It is possible that this is a driver issue, could be similar to the old stereo view bug. Could you try using a different version of Nvidia driver?
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Pratik Borhade commented 2023-08-10 07:15:01 +02:00
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I can confirm on Windows+NVIDIA when histogram (same for other display modes) region is smaller.

**System Information**
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 532.03
I can confirm on Windows+NVIDIA when histogram (same for other display modes) region is smaller. ``` **System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 532.03 ```
Pratik Borhade commented 2023-08-10 07:20:34 +02:00
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Artifacts do not appear with AMD iGPU.

Artifacts do not appear with AMD iGPU.
Pratik Borhade changed title from Artifacts in VSE histogram to VSE: Artifacts in histogram (NVIDIA) 2023-08-10 07:21:39 +02:00
shaqualeek commented 2023-08-11 00:31:38 +02:00
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Could you try using a different version of Nvidia driver?

I installed newest nvidia studio driver 536.99. No change.

> Could you try using a different version of Nvidia driver? I installed newest nvidia studio driver 536.99. No change.
Richard Antalik commented 2023-08-11 06:32:04 +02:00
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I can't reproduce with NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 526.98

Could be similar to issue where no background was drawn so memory was uninitialized and that caused glitches like this. Or at least that's how I remembered 5cd2be7d54

I can make test build so @shaqualeek can check, otherwise I would need to seek help with this.

I can't reproduce with NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 526.98 Could be similar to issue where no background was drawn so memory was uninitialized and that caused glitches like this. Or at least that's how I remembered 5cd2be7d543b487f037e2ffdfb9321e9ec8bc6e2 I can make test build so @shaqualeek can check, otherwise I would need to seek help with this.
Richard Antalik commented 2023-08-11 06:59:50 +02:00
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I have stepped through debugger and I see UI_ThemeClearColor() is called so this is probably different issue, maybe driver related. @Jeroen-Bakker can you check if you can reproduce and if the issue is on our side?

I have stepped through debugger and I see `UI_ThemeClearColor()` is called so this is probably different issue, maybe driver related. @Jeroen-Bakker can you check if you can reproduce and if the issue is on our side?
Pratik Borhade commented 2023-08-11 07:04:39 +02:00
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Think this is driver/GPU specific problem since I'm not observing drawing problems on AMD iGPU

NVIDIA 526.98

Update them and see if that makes any difference in the result

Think this is driver/GPU specific problem since I'm not observing drawing problems on AMD iGPU > NVIDIA 526.98 Update them and see if that makes any difference in the result
shaqualeek commented 2023-08-11 12:24:38 +02:00
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I tried the latest game-ready driver and the oldest official release I could find - 528.49 - in both cases, the glitch remains.

edit: Anyway, this is not something crucial to me..I just wanted to help. Maybe you could discuss this with the nVidia guys you cooperate with when there's a chance.

I tried the latest game-ready driver and the oldest official release I could find - 528.49 - in both cases, the glitch remains. edit: Anyway, this is not something crucial to me..I just wanted to help. Maybe you could discuss this with the nVidia guys you cooperate with when there's a chance.
Hannes Loeschke commented 2023-08-11 12:41:52 +02:00
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Can confirm the glitch on
Blender 3.6.1
NVidia RTX 4060 536.99 (updated Studio drivers yesterday)

Can confirm the glitch on Blender 3.6.1 NVidia RTX 4060 536.99 (updated Studio drivers yesterday)
scopes glitch.mp4
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image.png
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image.png
Vitor Boschi commented 2023-08-17 22:23:58 +02:00
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System Information
Operating system: Linux-6.2.0-26-generic-x86_64-with-glibc2.35 64 Bits, X11 UI
Graphics card: NVIDIA GeForce RTX 3090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 535.86.05

Blender Version
version: 4.0.0 Alpha, branch: main, commit date: 2023-08-07 16:43, hash: 9e7e0a01b291
version: 3.6.2, branch: blender-v3.6-release, commit date: 2023-08-16 16:43, hash: e53e55951e7a

I couldn't reproduce the issue on any of the above Blender versions. Maybe this happens only on Windows?

**System Information** Operating system: Linux-6.2.0-26-generic-x86_64-with-glibc2.35 64 Bits, X11 UI Graphics card: NVIDIA GeForce RTX 3090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 535.86.05 **Blender Version** version: 4.0.0 Alpha, branch: main, commit date: 2023-08-07 16:43, hash: `9e7e0a01b291` version: 3.6.2, branch: blender-v3.6-release, commit date: 2023-08-16 16:43, hash: `e53e55951e7a` I couldn't reproduce the issue on any of the above Blender versions. Maybe this happens only on Windows?
Jeroen Bakker self-assigned this 2023-08-28 08:15:55 +02:00
Jeroen Bakker commented 2023-08-28 08:16:01 +02:00
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I will try to reproduce by building a similar configuration

I will try to reproduce by building a similar configuration
Jeroen Bakker added this to the Viewport & EEVEE project 2023-08-28 08:16:16 +02:00
Jeroen Bakker commented 2023-09-21 11:22:21 +02:00
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I am not able to reproduce the issue using

**System Information**
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 537.34

**Blender Version**
Broken: version: 4.0.0 Alpha, branch: main, commit date: 2023-09-21 05:55, hash: `9cc4df8062af`

Will try with a 30-series card as well. I am able to reproduce it on RTX5000 card.

**System Information**
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: Quadro RTX 5000/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 537.34

**Blender Version**
Broken: version: 4.0.0 Alpha, branch: main, commit date: 2023-09-21 05:55, hash: `9cc4df8062af`

@iss the issue is that the scope images have their alpha set to 0.0, but as the blending is turned (GPU_BLEND_NONE) the driver makes an incorrect decision that for alpha blending on those hardware. A partial fix is to set the alpha of the scope buffers to 1.0f

diff --git a/source/blender/editors/space_sequencer/sequencer_preview_draw.cc b/source/blender/editors/space_sequencer/sequencer_preview_draw.cc
index 3e859fa020b..152fa3fecea 100644
--- a/source/blender/editors/space_sequencer/sequencer_preview_draw.cc
+++ b/source/blender/editors/space_sequencer/sequencer_preview_draw.cc
@@ -197,6 +197,7 @@ static ImBuf *sequencer_make_scope(Scene *scene, ImBuf *ibuf, ImBuf *(*make_scop
       display_ibuf, &scene->view_settings, &scene->display_settings);

   scope = make_scope_fn(display_ibuf);
+  IMB_rectfill_alpha(scope, 1.0f);

   IMB_freeImBuf(display_ibuf);

But this still makes the artifact appear around the scopes:
image

I am not able to reproduce the issue using ``` **System Information** Operating system: Windows-10-10.0.19044-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 537.34 **Blender Version** Broken: version: 4.0.0 Alpha, branch: main, commit date: 2023-09-21 05:55, hash: `9cc4df8062af` ``` Will try with a 30-series card as well. I am able to reproduce it on RTX5000 card. ``` **System Information** Operating system: Windows-10-10.0.19044-SP0 64 Bits Graphics card: Quadro RTX 5000/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 537.34 **Blender Version** Broken: version: 4.0.0 Alpha, branch: main, commit date: 2023-09-21 05:55, hash: `9cc4df8062af` ``` @iss the issue is that the scope images have their alpha set to 0.0, but as the blending is turned (GPU_BLEND_NONE) the driver makes an incorrect decision that for alpha blending on those hardware. A partial fix is to set the alpha of the scope buffers to 1.0f ``` diff --git a/source/blender/editors/space_sequencer/sequencer_preview_draw.cc b/source/blender/editors/space_sequencer/sequencer_preview_draw.cc index 3e859fa020b..152fa3fecea 100644 --- a/source/blender/editors/space_sequencer/sequencer_preview_draw.cc +++ b/source/blender/editors/space_sequencer/sequencer_preview_draw.cc @@ -197,6 +197,7 @@ static ImBuf *sequencer_make_scope(Scene *scene, ImBuf *ibuf, ImBuf *(*make_scop display_ibuf, &scene->view_settings, &scene->display_settings); scope = make_scope_fn(display_ibuf); + IMB_rectfill_alpha(scope, 1.0f); IMB_freeImBuf(display_ibuf); ``` But this still makes the artifact appear around the scopes: ![image](/attachments/8dc47e83-bf77-4545-a516-bf065ad37da1)
image.png
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shaqualeek commented 2023-09-26 14:32:03 +02:00
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this update solved the issue on my machine. thank you!

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 4070/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 537.42

Blender Version
Broken: version: 4.0.0 Alpha, branch: PR112665, commit date: 2023-09-21 10:51, hash: ca1c8fb02ff4

this update solved the issue on my machine. thank you! **System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 4070/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 537.42 **Blender Version** Broken: version: 4.0.0 Alpha, branch: PR112665, commit date: 2023-09-21 10:51, hash: `ca1c8fb02ff4`
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