Weighted Normal modifier produces weird artefacts with Keep Sharp enabled #108039

New Issue

Alex P · 2023-05-18T10:07:38+02:00

Alex P commented

2023-05-18 10:07:38 +02:00

System Information
Operating system: Windows-10-10.0.22621-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.59

Blender Version
Broken: version: 3.6.0 Beta, branch: blender-v3.6-release, commit date: 2023-05-17 23:33, hash: a9358f5274b6
Broken by 17d161f565

Short description of error
Weighted Normal modifier produces weird artefacts with Keep Sharp enabled. Previously it correctly took auto-smooth angle into account, but now I need to manually add sharp edges to get correct result.

Exact steps for others to reproduce the error

Bevel 4 edges of the default cube to get 4 rounded corners and two opposite flat polygons
Enable auto-smooth shading with default 30 deg
Apply Weighted Normal modifier and enable "Keep Sharp" option
Side edges should be sharp and side planes should be flat, but as shown on screens they are not
They turn into flat after manually adding sharp edges

**System Information** Operating system: Windows-10-10.0.22621-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.59 **Blender Version** Broken: version: 3.6.0 Beta, branch: blender-v3.6-release, commit date: 2023-05-17 23:33, hash: `a9358f5274b6` Broken by 17d161f56537d424d369a1dcf4c47d3976842af8 **Short description of error** Weighted Normal modifier produces weird artefacts with Keep Sharp enabled. Previously it correctly took auto-smooth angle into account, but now I need to manually add sharp edges to get correct result. **Exact steps for others to reproduce the error** 1. Bevel 4 edges of the default cube to get 4 rounded corners and two opposite flat polygons 2. Enable auto-smooth shading with default 30 deg 3. Apply Weighted Normal modifier and enable "Keep Sharp" option 4. Side edges should be sharp and side planes should be flat, but as shown on screens they are not 5. They turn into flat after manually adding sharp edges

weightednormal_bug.blend

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Zrzut ekranu 2023-05-18 0957061.png

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Zrzut ekranu 2023-05-18 1003211.png

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Alex P added the

labels 2023-05-18 10:07:39 +02:00

YimingWu commented

2023-05-18 10:40:01 +02:00

Could be similar to #107514 but it's supposed to be already fixed.

Pratik Borhade commented

2023-05-18 16:04:49 +02:00

Unable to replicate this in current master (4.0.0-406cfd214aaad9c90b62ce48eda6d72d2eacb6fe).
Will check in 3.6-beta
@ChengduLittleA , do you observe this?

**System Information**
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.78

Unable to replicate this in current master (4.0.0-`406cfd214aaad9c90b62ce48eda6d72d2eacb6fe`). Will check in 3.6-beta @ChengduLittleA , do you observe this? ``` **System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.78 ```

YimingWu commented

2023-05-22 16:21:25 +02:00

@PratikPB2123 no I cant reproduce this either (im now on integrated graphics)