Entering sculpting mode forces smooth normals when no active modifier is present #119584

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Apois-Levy · 2024-03-17T04:38:56+01:00

Apois-Levy commented

2024-03-17 04:38:56 +01:00

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 537.58

Blender Version
Broken: version: 4.0.2, branch: blender-v4.0-release, commit date: 2023-12-05 07:41, hash: 9be62e85b727
as well as
version: 4.2.0 Alpha, branch: main, commit date: 2024-03-16 19:16, hash: 6768ded89586

Worked: unknown

Short description of error
Entering sculpting mode forces smooth normals within sculpt mode. This is both true for explicitly "marked sharp" edges and "auto smoothed" sharpened edges. The normals return to their intended sharpness once sculpt mode is exited or ANY active modifier is present while in sculpt mode. (Triangulation, armature, ANY active modifier or the newer "Smooth by angle" modifier)

Exact steps for others to reproduce the error

Given a blank scene.
Have an object with either manually marked sharp edges or auto-smoothed edges.
Entering sculpt mode causes the normals to be rendered as smooth.
If any valid modifier is present, the mesh renders correctly.
If you get back out of sculpt mode, the mesh renders correctly.
behavior seems the same in 3.6, 4.0 and 4.2.

Attached video shows of said behavior.

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 537.58 **Blender Version** Broken: version: 4.0.2, branch: blender-v4.0-release, commit date: 2023-12-05 07:41, hash: `9be62e85b727` as well as version: 4.2.0 Alpha, branch: main, commit date: 2024-03-16 19:16, hash: `6768ded89586` Worked: unknown **Short description of error** Entering sculpting mode forces smooth normals within sculpt mode. This is both true for explicitly "marked sharp" edges and "auto smoothed" sharpened edges. The normals return to their intended sharpness once sculpt mode is exited or ANY active modifier is present while in sculpt mode. (Triangulation, armature, ANY active modifier or the newer "Smooth by angle" modifier) **Exact steps for others to reproduce the error** 1. Given a blank scene. 2. Have an object with either manually marked sharp edges or auto-smoothed edges. 3. Entering sculpt mode causes the normals to be rendered as smooth. 4. If any valid modifier is present, the mesh renders correctly. 5. If you get back out of sculpt mode, the mesh renders correctly. behavior seems the same in 3.6, 4.0 and 4.2. Attached video shows of said behavior.

blender_6EJIwjShok.mp4

1.1 MiB

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Apois-Levy added the

labels 2024-03-17 04:38:56 +01:00

Iliya Katushenock added the