Regression: Custom split normals of hidden faces/vertices remain visible (AMD GPU) #97828

New Issue

Etienne de la Rosa · 2022-05-04T06:39:02+02:00

2022-05-04 06:39:02 +02:00

System Information
Operating system: Windows-10-10.0.19042-SP0 64 Bits
Graphics card: Radeon RX 560 Series ATI Technologies Inc. 4.5.14800 Core Profile Context 22.4.2 30.0.15021.7000

Blender Version
Broken: version: 3,3, b73dc36859
Worked: 2.93, 7223a0348f
Caused by 2262d6c45a

Short description of error
As stated in the title, the custom split normals of a vertex will remain visible even when hiding said vertex.

Exact steps for others to reproduce the error

On fresh default cube scene
Select default cube and go into edit mode
Enable normal display (adjust length to your liking): {nav Viewport Overlays > Normals > Display Split Normals}
Hide any or all vertices; the face and corner normals will hide as expected, but the split normals will remain visible.

Test File:
#97828.blend

**System Information** Operating system: Windows-10-10.0.19042-SP0 64 Bits Graphics card: Radeon RX 560 Series ATI Technologies Inc. 4.5.14800 Core Profile Context 22.4.2 30.0.15021.7000 **Blender Version** Broken: version: 3,3, `b73dc36859` Worked: 2.93, `7223a0348f` Caused by 2262d6c45a **Short description of error** As stated in the title, the custom split normals of a vertex will remain visible even when hiding said vertex. **Exact steps for others to reproduce the error** - On fresh default cube scene - Select default cube and go into edit mode - Enable normal display (adjust length to your liking): {nav Viewport Overlays > Normals > Display Split Normals} - Hide any or all vertices; the face and corner normals will hide as expected, but the split normals will remain visible. Test File: [#97828.blend](https://archive.blender.org/developer/F13050463/T97828.blend)

Etienne de la Rosa commented

2022-05-04 06:39:02 +02:00

Added subscriber: @Yuurei

Pratik Borhade commented

2022-05-04 06:46:47 +02:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-05-04 07:03:50 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Pratik Borhade changed title from ~~Custom split normals of hidden faces/vertices remain visible.~~ to Regression: Custom split normals of hidden faces/vertices remain visible.

2022-05-04 07:07:50 +02:00

Philipp Oeser commented

2022-05-04 10:55:11 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2022-05-04 10:55:12 +02:00

If this is a regression, could be set to High prio (and bisected if possible).

However, on my end, I cannot reproduce this

**System Information**
Operating system: Linux-5.13.0-0.rc6.45.fc35.x86_64-x86_64-with-glibc2.34.9000 64 Bits
Graphics card: NVIDIA GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 495.44
version: 3.3.0 Alpha, branch: master, commit date: 2022-05-03 07:50, hash: `rB8e71ba12e52d`

If this is a regression, could be set to High prio (and bisected if possible). However, on my end, I cannot reproduce this ``` **System Information** Operating system: Linux-5.13.0-0.rc6.45.fc35.x86_64-x86_64-with-glibc2.34.9000 64 Bits Graphics card: NVIDIA GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 495.44 version: 3.3.0 Alpha, branch: master, commit date: 2022-05-03 07:50, hash: `rB8e71ba12e52d` ```

Pratik Borhade commented

2022-05-04 12:47:08 +02:00

However, on my end, I cannot reproduce this

So I tested this again.

Neither I'm able to reproduce when I run blender with intel iGPU.
With dedicated AMD GPU I can repro.

I'll do the bisect. Will take some time.

> However, on my end, I cannot reproduce this So I tested this again. Neither I'm able to reproduce when I run blender with intel iGPU. With dedicated AMD GPU I can repro. I'll do the bisect. Will take some time.

Philipp Oeser changed title from ~~Regression: Custom split normals of hidden faces/vertices remain visible.~~ to Regression: Custom split normals of hidden faces/vertices remain visible (AMD GPU)

2022-05-05 13:50:48 +02:00

Philipp Oeser commented

2022-05-05 13:51:52 +02:00

Will raise prio since it is a regression, bisect from @PratikPB2123 incoming...

Pratik Borhade commented

2022-05-07 13:55:12 +02:00

Added subscriber: @Jeroen-Bakker

Pratik Borhade commented

2022-05-07 13:55:12 +02:00

Sorry for the delay, just finished bisecting. This was introduced in 2262d6c45a
@Jeroen-Bakker , can you check?

Sorry for the delay, just finished bisecting. This was introduced in 2262d6c45a @Jeroen-Bakker , can you check?

Jeroen Bakker self-assigned this 2022-05-23 10:30:23 +02:00

Jeroen Bakker commented

2022-05-24 10:52:11 +02:00

The artifact is a limitation of the workaround. There isn't enough space in the buffers to store them.
I did test if the latest windows drivers fixed the original issue and that seems to be the case for at least Polaris based cards.

Will disable commonly used polaris architectures from the work-around as a fix. (rx400 + rx500) desktop cards.

Using the latest wqhl amd drivers (22.5.1)

Operating system: Windows-10-10.0.19042-SP0 64 Bits
Graphics card: Radeon (TM) RX 480 Graphics ATI Technologies Inc. 4.5.14800 Core Profile Context 22.5.1 30.0.15021.11005

The artifact is a limitation of the workaround. There isn't enough space in the buffers to store them. I did test if the latest windows drivers fixed the original issue and that seems to be the case for at least Polaris based cards. Will disable commonly used polaris architectures from the work-around as a fix. (rx400 + rx500) desktop cards. Using the latest wqhl amd drivers (22.5.1) ``` Operating system: Windows-10-10.0.19042-SP0 64 Bits Graphics card: Radeon (TM) RX 480 Graphics ATI Technologies Inc. 4.5.14800 Core Profile Context 22.5.1 30.0.15021.11005 ```

blender-admin commented

2022-05-24 10:58:21 +02:00

This issue was referenced by d1340e1bb2

This issue was referenced by d1340e1bb250f6ec4b9781f4b9c5f01a9e4da9e9

Jeroen Bakker commented

2022-05-24 11:16:21 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Jeroen Bakker closed this issue

2022-05-24 11:16:21 +02:00

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Regression: Custom split normals of hidden faces/vertices remain visible (AMD GPU) #97828