scale bug #52193

Closed
opened 2017-07-26 12:48:51 +02:00 by daniel · 5 comments

System Information
win7 64

Blender Version
Broken: edc6bec
Worked: (optional)

Short description of error
when you rotate object in for example Y axis and then try to scale it by -1 in Y world axis it takes Y local axis instead of world Y axis. It does not happen while grabbing or rotating- you can grab or rotate in global and local coordinate and have expected result. scale does not work that way.
Exact steps for others to reproduce the error
in attached file scale_bug.blend
there are 2 boxes rotated in X axis by -30deg. the right one has rotation applied.
try to scale left box in Y world axis by -1. it should be the same when you do it with right box.

**System Information** win7 64 **Blender Version** Broken: edc6bec Worked: (optional) **Short description of error** when you rotate object in for example Y axis and then try to scale it by -1 in Y world axis it takes Y local axis instead of world Y axis. It does not happen while grabbing or rotating- you can grab or rotate in global and local coordinate and have expected result. scale does not work that way. **Exact steps for others to reproduce the error** in attached file [scale_bug.blend](https://archive.blender.org/developer/F679186/scale_bug.blend) there are 2 boxes rotated in X axis by -30deg. the right one has rotation applied. try to scale left box in Y world axis by -1. it should be the same when you do it with right box.
Author

Changed status to: 'Open'

Changed status to: 'Open'
Author

Added subscriber: @midan-3

Added subscriber: @midan-3

Added subscriber: @mont29

Added subscriber: @mont29

Changed status from 'Open' to: 'Archived'

Changed status from 'Open' to: 'Archived'
Bastien Montagne self-assigned this 2017-07-26 13:15:08 +02:00

Thanks for the report, but indeed, scale does not work that way! It is stored along (local) axes of the objects, so when those are not aligned with selected transform space, scaling is merely proportionally spread across all involved object's axes. What you’d expect is actually converting scaling into shearing, which is not supported - and goes way beyond simple scale tool anyway.

Thanks for the report, but indeed, scale does not work that way! It is stored along (local) axes of the objects, so when those are not aligned with selected transform space, scaling is merely proportionally spread across all involved object's axes. What you’d expect is actually converting scaling into shearing, which is not supported - and goes way beyond simple scale tool anyway.
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Reference: blender/blender#52193
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