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Maniphest T87019

UVMap attributes unstable when using object info node.
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Description

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-28 10:50, hash: rBe47f5cf1979d

Short description of error
Potential BUG?
i tried to align the particles tangent to the UV Space origin, everything is working fine as expected
Until i start to change with the transforms rotation values of the emitter object, then the UVSpace is not reliable anymore.
Transforms shouldn't have any impact on these 2Dvector data stored per mesh corner, right?

Sorry if there's a misunderstanding,
I'm pretty sure that UVMap attributes shouldn't be unstable even on an applied object, as this is stored within the mesh data.

File available below



UV Space changin.blend3 MBDownload

Event Timeline

NoobiePoopsie (helloidonthaveanyideaformyusername) renamed this task from UVMap attributes affected by object info node. to UVMap attributes unstable when using object info node. .Mar 29 2021, 4:36 PM
NoobiePoopsie (helloidonthaveanyideaformyusername) created this task.
NoobiePoopsie (helloidonthaveanyideaformyusername) added a project: Geometry Nodes.
Jacques Lucke (JacquesLucke) closed this task as Archived.Mar 30 2021, 12:14 PM
Jacques Lucke (JacquesLucke) added a subscriber: Jacques Lucke (JacquesLucke).

This seems to be working correctly. The uv map is "stable" in the sense that the errors do not change their rotation when you rotate the plane. If you do want that the arrows rotate with the plane, then you have to take to planes rotation into account as shown below.