discontinuity euler filter doesn't resolve gimble lock problems #35668

New Issue

S S · 2013-06-08T10:15:10+02:00

S S commented

2013-06-08 10:15:10 +02:00

%%%--- Operating System, Graphics card ---
windows 7 64bit, GTX650ti

- Blender version with error, and version that worked ---

from blender 2.67b 64bit to 2.64a 64bit with error

- Short description of error ---

I make an animation, in which a circle rotates and has problem with gimbal lock. I want to try the "discontinuity euler filter" in the graph editor. But it doesn't work.

- Steps for others to reproduce the error (preferably based on attached .blend file) ---

1,open the file, you can see I have made a rotating circle. In the graph editor, use the "discontinuity euler filter".

%%%

%%%--- Operating System, Graphics card --- windows 7 64bit, GTX650ti - Blender version with error, and version that worked --- from blender 2.67b 64bit to 2.64a 64bit with error - Short description of error --- I make an animation, in which a circle rotates and has problem with gimbal lock. I want to try the "discontinuity euler filter" in the graph editor. But it doesn't work. - Steps for others to reproduce the error (preferably based on attached .blend file) --- 1,open the file, you can see I have made a rotating circle. In the graph editor, use the "discontinuity euler filter". %%%

S S commented

2013-06-08 10:15:10 +02:00

Changed status to: 'Open'

S S commented

2013-06-08 10:29:12 +02:00

%%%I also make a file in which the animation is correct. It is here: http://www.pasteall.org/blend/21968%%%

Joshua Leung commented

2013-06-09 13:24:33 +02:00

%%%The discontinuity filter was only really intended to fix 180 degree flips/jumps arising from baking sim results to euler rotation curves. It doesn't actually perform any other fancy logic to resolve the many other problems which can arise from gimble lock and so forth. In that regard, the tooltip for this operator is actually misleading. %%%

Ton Roosendaal commented

2013-06-10 15:43:57 +02:00

%%%Joshua: you fix the tooltip then?

Gimbal Locks is a feature of eulers, we cannot do anything about it really, apart from suggesting to use axis-rotation, or quaternions.%%%

%%%Joshua: you fix the tooltip then? Gimbal Locks is a feature of eulers, we cannot do anything about it really, apart from suggesting to use axis-rotation, or quaternions.%%%

Joshua Leung commented

2013-06-12 14:33:05 +02:00

%%%Fixed the problem with the misleading tooltip.%%%

Joshua Leung commented

2013-06-12 14:33:05 +02:00

Changed status from 'Open' to: 'Resolved'

Joshua Leung closed this issue

2013-06-12 14:33:05 +02:00

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discontinuity euler filter doesn't resolve gimble lock problems #35668