Transform constraint uses GLOBAL instead of LOCAL #49802

New Issue

Jan Matys · 2016-10-20T16:07:20+02:00

Jan Matys commented

2016-10-20 16:07:20 +02:00

System Information
Win 7 x64
NVidia 760GTX

Blender Version
Broken: 2.77 abf6f08

Short description of error
When the object is animated along the path (nurbs curve) using follow path feature (goes along and also rotates along Z accordingly) the LOCAL Y axis looks like GLOBAL Y when its Y position is used as a transformation to rotate another object - wheel in my case, file attached.

I made a simple empty to go along the nurbs curve and also follow its rotation. The cylinder has the transformation constraint to rotate 100deg every 1m of the distance empty travels. When the empty moves along the curve and travels in GLOBAL X despite the transformation uses LOCAL Y which points in the right direction the wheel stops turning.

Also when the object follows the curve along GLOBAL -Y the cylinder starts to rotate in the opposite direction despite the LOCAL Y points in the right direction all the time because it follows the curve.

It looks like it does NOT matter if I use LOCAL in the constraint transformations because the function uses GLOBAL all the time...

Exact steps for others to reproduce the error
Rotation_Test.blend

**System Information** Win 7 x64 NVidia 760GTX **Blender Version** Broken: 2.77 abf6f08 **Short description of error** When the object is animated along the path (nurbs curve) using follow path feature (goes along and also rotates along Z accordingly) the LOCAL Y axis looks like GLOBAL Y when its Y position is used as a transformation to rotate another object - wheel in my case, file attached. I made a simple empty to go along the nurbs curve and also follow its rotation. The cylinder has the transformation constraint to rotate 100deg every 1m of the distance empty travels. When the empty moves along the curve and travels in GLOBAL X despite the transformation uses LOCAL Y which points in the right direction the wheel stops turning. Also when the object follows the curve along GLOBAL -Y the cylinder starts to rotate in the opposite direction despite the LOCAL Y points in the right direction all the time because it follows the curve. It looks like it does NOT matter if I use LOCAL in the constraint transformations because the function uses GLOBAL all the time... **Exact steps for others to reproduce the error** [Rotation_Test.blend](https://archive.blender.org/developer/F382237/Rotation_Test.blend)

Jan Matys commented

2016-10-20 16:07:20 +02:00

Changed status to: 'Open'

Jan Matys commented

2016-10-20 16:07:20 +02:00

Added subscriber: @JayM

Bastien Montagne commented

2016-10-21 11:15:52 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2016-10-21 11:15:52 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2016-10-21 11:15:52 +02:00

Bastien Montagne self-assigned this 2016-10-21 11:15:52 +02:00

Bastien Montagne commented

2016-10-21 11:15:52 +02:00

You are confusing what local space is - local and world space of an object are the same, unless said object has a parent… You cannot use local space option to do what you want to achieve here.

Jan Matys commented

2016-10-23 19:21:10 +02:00

So how could I achieve what Im looking for?

   Sincerely, Jan

So how could I achieve what Im looking for? ``` Sincerely, Jan

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Transform constraint uses GLOBAL instead of LOCAL #49802