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Transform operator constrained to 2 axes snaps when it shouldn't on small scales.
Closed, ResolvedPublic

Description

System Information
Operating system: Windows-10-10.0.14393 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 416.94

Blender Version
Broken: Latest 2.81 and 2.7, so probably always

Short description of error
If you're working at a small scale and try to move anything with the transform operator (G) on two axes at once (eg. Shift+Z), it snaps to what to me seems like its original distance from the viewport camera, but I'm not sure on that, see video.

Exact steps for others to reproduce the error

  • Scale down default cube by 0.001
  • Move it using G->Shift+Z
  • It's hard to move it a small amount because of the snapping issue.

This issue starts being noticable when working with objects smaller than about 30cm.

You could say, ( •_•)>⌐■-■
(⌐■_■) it's a small problem.