Geometry Nodes - Set Shade Smooth node - not clear when "Autosmooth" is on #107354
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Reference: blender/blender#107354
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System Information
Operating system: Windows-10-10.0.22621-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 4090/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 531.68
Blender Version
Broken: version: 3.5.1, branch: blender-v3.5-release, commit date: 2023-04-24 18:11, hash:
e1ccd9d4a1d3Worked: version 3.5.0
Short description of error
Previously in Blender 3.5.0 you could Set Shade Smooth and the mesh would set the normals to shade smooth. Now in 3.5.1 and 3.6 builds, this node sets to what is apparently the "Autosmooth" normals mode - and when you apply the GN modifier, it will have the mesh set to autosmooth. This is not ideal UX - needs fixing and/or a socket to toggle autosmooth would be nice in this node.
Right now, the Set Shade Smooth is not setting normals to Smooth if Autosmooth is on, meaning it may cause unintended behaviour as a UX.
If you join meshes, realize instances or get mesh data from collection or objects, then it's broken and the autosmooth tick in the Normals panel does nothing, so you can't redefine autosmooth with the Set Shade Smooth.
Exact steps for others to reproduce the error
Looks like this MAY be intended behaviour, where autosmooth in the Properties Editor>Mesh>Normals panel overrides the geometry nodes settings...
This could be closed I guess.... I will update description.
Geometry Nodes - Set Shade Smooth - broken smooth setting, sets to "Autosmooth" insteadto Geometry Nodes - Set Shade Smooth node - not clear when "Autosmooth" is onTo clarify, using shade smooth before or after getting mesh data from a collection makes the Autosmooth override useless in the parent geometry nodes object - making it default to parent object regardless of autosmooth settings.
This looks expected indeed.
Same behavior is visible when you set "shade smooth" from context menu.
Don't think this is a regression. For me results are same in versions prior to 3.5
Will close this for now. Feel free to comment if there is misunderstanding, will reopen the report.
Shade smooth flag is object data i guess? Modifiers can't change that.
Thanks for clarifying @PratikPB2123 , seems the issue is more specific with the "Realize Instances" node. I will make another specific task for it.