Weird glitch at some models #89318

New Issue

Žan Torkar · 2021-06-20T21:26:04+02:00

Žan Torkar commented

2021-06-20 21:26:04 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: AMD Radeon(TM) Vega 8 Graphics ATI Technologies Inc. 4.5.13596 Core Profile Context 20.10.44.05 27.20.11044.5003

Blender Version
Broken: version: 2.93.0, branch: master, commit date: 2021-06-02 11:21, hash: 84da05a8b8
Worked: (newest version of Blender that worked as expected)

Short description of error
When importing collada(dae) models, some weird glitch shows up (this might also happen with the other models).

Exact steps for others to reproduce the error

Open Blender
File -> Import -> Collada (Default) (.dae)
Import a file (I used Silver the Hedgedog)

Silver_ColladaMax.DAE

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: AMD Radeon(TM) Vega 8 Graphics ATI Technologies Inc. 4.5.13596 Core Profile Context 20.10.44.05 27.20.11044.5003 **Blender Version** Broken: version: 2.93.0, branch: master, commit date: 2021-06-02 11:21, hash: `84da05a8b8` Worked: (newest version of Blender that worked as expected) **Short description of error** When importing collada(dae) models, some weird glitch shows up (this might also happen with the other models). **Exact steps for others to reproduce the error** - Open Blender - File -> Import -> Collada (Default) (.dae) - Import a file (I used Silver the Hedgedog) [Silver_ColladaMax.DAE](https://archive.blender.org/developer/F10183795/Silver_ColladaMax.DAE) ![Screenshot (13).png](https://archive.blender.org/developer/F10183798/Screenshot__13_.png)

Žan Torkar commented

2021-06-20 21:26:04 +02:00

Added subscriber: @Zanci19

blender-admin commented

2021-06-20 21:26:04 +02:00

#89766 was marked as duplicate of this issue

Philipp Oeser commented

2021-06-21 09:46:12 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-06-21 09:46:12 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Philipp Oeser commented

2021-06-21 09:46:12 +02:00

Has this worked in a previous release? https://download.blender.org/release/

(unable to reproduce here with a 970m in Linux)

Has this worked in a previous release? https://download.blender.org/release/ (unable to reproduce here with a 970m in Linux)

Evan Wilson commented

2021-06-21 14:18:10 +02:00

Added subscriber: @EAW

Evan Wilson commented

2021-06-21 14:18:10 +02:00

Also, please try updating your driver. Your’s is from November 2020 it appears.

Also, please try updating your driver. Your’s is from [November 2020](https://www.catalog.update.microsoft.com/Search.aspx?q=VEN_1002) it appears.

Pratik Borhade commented

2021-07-01 11:43:57 +02:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2021-07-01 11:43:57 +02:00

Changed status from 'Needs User Info' to: 'Archived'

Pratik Borhade closed this issue

2021-07-01 11:43:57 +02:00

Pratik Borhade commented

2021-07-01 11:43:57 +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 commented

2021-07-10 07:36:57 +02:00

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

Pratik Borhade reopened this issue

2021-07-10 07:36:57 +02:00

Pratik Borhade commented

2021-07-10 07:37:41 +02:00

Added subscriber: @zJustSimple

Pratik Borhade commented

2021-07-10 07:39:05 +02:00

Can reproduce on windows but I will double check after upgrading the driver
(I think it's a driver specific issue)

System Information

Graphics card: AMD Radeon(TM) 535 ATI Technologies Inc. 4.5.14831 Core Profile Context 21.5.2 27.20.21003.8013```

Can reproduce on windows but I will double check after upgrading the driver (I think it's a driver specific issue) --- **System Information** ```Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: AMD Radeon(TM) 535 ATI Technologies Inc. 4.5.14831 Core Profile Context 21.5.2 27.20.21003.8013```

Pratik Borhade commented

2021-07-15 15:57:33 +02:00

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

Tim Smith commented

2021-07-26 14:44:38 +02:00

Added subscriber: @tims-4

Tim Smith commented

2021-07-28 12:22:47 +02:00

Can confirm this issue. In my experience, the artifacts appear with multiple material slots when one of the materials has <1 viewport display color alpha. Minimal steps to reproduce the issue:

Create a new default scene (File->New->General)
Confirm you are using solid shading and your color is set to "Material" in viewport shading settings
Adjust the cube's default material viewport color alpha. Observe no artifacts.
Add a material slot to the default cube.
Adjust the cube's default material viewport color alpha. Artifacts appear when the viewport color alpha is less than one.

Tested on two separate Windows 10 machines with AMD GPUs, artifacts appear on both machines. Both machines have updated drivers as the time of writing this message. No artifacts on a machine with Intel GPU.

The artifacts do not appear in v2.90.1 or anything earlier, but start to appear after v2.91.0. I compiled multiple versions between v2.90.1 and v2.91.0, and the artifacts begin to appear after 854c999d82.

Can confirm this issue. In my experience, the artifacts appear with multiple material slots when one of the materials has <1 viewport display color alpha. Minimal steps to reproduce the issue: 1. Create a new default scene (File->New->General) 2. Confirm you are using solid shading and your color is set to "Material" in viewport shading settings 3. Adjust the cube's default material viewport color alpha. Observe no artifacts. 4. Add a material slot to the default cube. 5. Adjust the cube's default material viewport color alpha. Artifacts appear when the viewport color alpha is less than one. Tested on two separate Windows 10 machines with AMD GPUs, artifacts appear on both machines. Both machines have updated drivers as the time of writing this message. No artifacts on a machine with Intel GPU. The artifacts do not appear in v2.90.1 or anything earlier, but start to appear after v2.91.0. I compiled multiple versions between v2.90.1 and v2.91.0, and the artifacts begin to appear after 854c999d82.

Pratik Borhade commented

2021-09-02 10:57:14 +02:00

This is same as #83022 (Transparency in Solid View Causes Glitch Artifacts)

Can be merged, I guess

This is same as #83022 (Transparency in Solid View Causes Glitch Artifacts) Can be merged, I guess

Evan Wilson commented

2021-10-16 05:55:46 +02:00

Closed as duplicate of #83022

Evan Wilson closed this issue

2021-10-16 05:55:46 +02:00

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Weird glitch at some models #89318