Regression: Action actuator with playback type "Flipper" does not reverse correctly after action reaches end frame #41168
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Reference: blender/blender#41168
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Broken: Version 2.71 official
Worked: Version 2.70a official
How to reproduce:
Notice that if you hold LMB for long enough, allowing the cube to reach the end of its action, the cube will not go back down gently when you release. Instead, it snaps back down.
Expected behaviour:
The Flipper playback type should behave as it did in 2.70; playing the action forward when given a positive signal, then reversing when negative. The current behaviour of "snapping" back to frame 0 is a regression and it negates the usefulness of the feature.
Changed status to: 'Open'
Added subscriber: @rocketman
#42852 was marked as duplicate of this issue
Oops! nearly forgot the file:
flipper_bug.blend
Added subscriber: @avrprj
This is a side effect of the memory management for layers of action. After delete layer the actuator continues to request current frame and gets 0.
Added subscribers: @Moguri, @dfelinto
@Moguri have you seen this?
Yes. I did a quick patch and it is works, but I do not think a solution optimal, as it was necessary to introduce a new playtype in BL_Action. I think there is another solution to the conservation of the management layers mechanism.
Changed status from 'Open' to: 'Resolved'
Added subscriber: @hougang