Animated Transforms to Deltas behaves oddly when applied more than once #29110

New Issue

Pep · 2011-10-31T14:57:18+01:00

Pep commented

2011-10-31 14:57:18 +01:00

%%%Something odd happens when you select Object -> Transform -> Animated Transforms to Deltas.

If there weren't previous delta curves, all is Ok. But if there were, instead of either

a) replacing them, or

b) combining with the new set,

it just adds a new set of curves.

In the file uploaded, there is a set of location deltas and a set of location regular transforms. If you play the animation, the cube goes from left to right (doing a 'U' movement). If at this point you convert animated transforms to deltas, then you see, in the first place, the duplication of delta location entries; and in the second place you see that the animation has changed visually: it goes from right to left, doing a different circuit.

Regards.

Pep.

%%%

%%%Something odd happens when you select Object -> Transform -> Animated Transforms to Deltas. If there weren't previous delta curves, all is Ok. But if there were, instead of either a) replacing them, or b) combining with the new set, it just adds a new set of curves. In the file uploaded, there is a set of location deltas and a set of location regular transforms. If you play the animation, the cube goes from left to right (doing a 'U' movement). If at this point you convert animated transforms to deltas, then you see, in the first place, the duplication of delta location entries; and in the second place you see that the animation has changed visually: it goes from right to left, doing a different circuit. Regards. Pep. %%%

Pep commented

2011-10-31 14:57:18 +01:00

Changed status to: 'Open'

Campbell Barton commented

2011-11-03 05:39:36 +01:00

%%%Attached a patch to apply the delta as scale.%%%

Pep commented

2011-11-03 06:33:11 +01:00

%%%I think this comment of Campbell refers to bug 29111? (correct me if I'm wrong)%%%

Joshua Leung commented

2011-11-03 14:13:19 +01:00

%%%The problem is that this doesn't check if such curves exist already.

Due to the nature of the problem, it's very very difficult to find any way of combining the curves in any reliable way short of sampling them at regular intervals (not really useful for further editing though). The problem with replacing them directly though, is that the results are probably not what was expected either.

Probably best to just forbid doing this if deltas exist for the relevant transforms already?%%%

%%%The problem is that this doesn't check if such curves exist already. Due to the nature of the problem, it's very very difficult to find any way of combining the curves in any reliable way short of sampling them at regular intervals (not really useful for further editing though). The problem with replacing them directly though, is that the results are probably not what was expected either. Probably best to just forbid doing this if deltas exist for the relevant transforms already?%%%

Pep commented

2011-11-03 15:20:54 +01:00

%%%If I might suggest: if curves exist already, then a 2-choice could pop up: Replace or Cancel. Just an idea.%%%