Ocean modifier animation not working with NLA action-strip #45938

New Issue

Dolphin Dream · 2015-08-28T21:45:18+02:00

Dolphin Dream commented

2015-08-28 21:45:18 +02:00

System Information
OS: Ubuntu 14.04 (64 bit)
RAM : 7.8 GiB
CPU: Intel® Core™ i5-2400 CPU @ 3.10GHz × 4
GFX: GeForce GT 520/PCIe/SSE2

Blender Version
2.75 (hash 9b3fa88)

Short description of error
Ocean modifier with time keyframed does not animate after creating action-strip in NLA editor.

Exact steps for others to reproduce the error
See the attached blend. A simple plane with ocean modifier added to it with time animated with 2 keyframes (linear interpolation). The ocean animates fine... but once I push the animation on the NLA stack (in NLA editor / add action-strip) the ocean no longer animates. I noticed that the ocean does animate however once you hit TAB to enter the edit mode in NLA action-strip. I also tried to animate the NLA strip time (with keyframes) but still the ocean does not animate.

Note: Aligorith suggested this may be a bug in the old depsgraph and asked me to mention todo notes written in depsgraph.c - 2036.

oceanModNLARetimingBug.blend

**System Information** OS: Ubuntu 14.04 (64 bit) RAM : 7.8 GiB CPU: Intel® Core™ i5-2400 CPU @ 3.10GHz × 4 GFX: GeForce GT 520/PCIe/SSE2 **Blender Version** 2.75 (hash 9b3fa88) **Short description of error** Ocean modifier with time keyframed does not animate after creating action-strip in NLA editor. **Exact steps for others to reproduce the error** See the attached blend. A simple plane with ocean modifier added to it with time animated with 2 keyframes (linear interpolation). The ocean animates fine... but once I push the animation on the NLA stack (in NLA editor / add action-strip) the ocean no longer animates. I noticed that the ocean does animate however once you hit TAB to enter the edit mode in NLA action-strip. I also tried to animate the NLA strip time (with keyframes) but still the ocean does not animate. Note: Aligorith suggested this may be a bug in the old depsgraph and asked me to mention todo notes written in depsgraph.c - 2036. [oceanModNLARetimingBug.blend](https://archive.blender.org/developer/F228810/oceanModNLARetimingBug.blend)

Dolphin Dream commented

2015-08-28 21:45:18 +02:00

Changed status to: 'Open'

Dolphin Dream commented

2015-08-28 21:45:18 +02:00

Added subscriber: @MariusGiurgi

perfection cat commented

2015-08-29 04:02:12 +02:00

Added subscriber: @sindra1961

perfection cat commented

2015-08-29 04:02:13 +02:00

If you choose the action in Action Editor of DopeSheet, it should works again.

If you choose the action in Action Editor of DopeSheet, it should works again. ![oceanModNLARetimingBug.png](https://archive.blender.org/developer/F228865/oceanModNLARetimingBug.png)

Dolphin Dream commented

2015-08-29 04:54:43 +02:00

In #45938#331077, @sindra1961 wrote:
If you choose the action in Action Editor of DopeSheet, it should works again.

Yeah, except that now it’s not the pushed NLATrack (action strip) that is animating, but the PlaneAction on top of it. If the NLATrack pushed on the stack had its time remapped (e.g. animate/keyframe the Strip-Time), this animation would not play when you make the selection like had you mentioned. What is animating is the action that is not yet pushed onto the NLA stack as an action strip. (note the PlaneAction on top of the action-strip in your screenshot)

> In #45938#331077, @sindra1961 wrote: > If you choose the action in Action Editor of DopeSheet, it should works again. > ![oceanModNLARetimingBug.png](https://archive.blender.org/developer/F228865/oceanModNLARetimingBug.png) Yeah, except that now it’s not the pushed NLATrack (action strip) that is animating, but the PlaneAction on top of it. If the NLATrack pushed on the stack had its time remapped (e.g. animate/keyframe the Strip-Time), this animation would not play when you make the selection like had you mentioned. What is animating is the action that is not yet pushed onto the NLA stack as an action strip. (note the PlaneAction on top of the action-strip in your screenshot)

perfection cat commented

2015-08-29 05:21:41 +02:00

{F228878}

{[F228878](https://archive.blender.org/developer/F228878/oceanModNLARetimingBug2.png)}![oceanModNLARetimingBug3.png](https://archive.blender.org/developer/F228880/oceanModNLARetimingBug3.png)

Joshua Leung self-assigned this 2015-08-29 06:02:27 +02:00

perfection cat commented

2015-08-29 06:29:34 +02:00

I'm sorry, I seemed to misunderstand the meaning of your question.

Dolphin Dream commented

2015-08-31 16:15:13 +02:00

Sindra, try to push the action onto the NLA stack (creating a new action-strip).. then try to animate the Strip Time of that strip, effectively remapping its time. See if you succeed to get the ocean animation to go from normal speed to slow-mo speed as you playback. It seems that aligorith thinks it's probably a Dependency Graph issue.

perfection cat commented

2015-09-01 04:22:35 +02:00

This comment was removed by @sindra1961

*This comment was removed by @sindra1961*

perfection cat commented

2015-09-01 04:35:13 +02:00

I'm sorry, some expression was different.
It works when I make a similar object in new dependency graph, but does not work even if I make a similar object in old dependency graph.
The attached blend file does not work in new dependency graph either.

I'm sorry, some expression was different. It works when I make a similar object in new dependency graph, but does not work even if I make a similar object in old dependency graph. The attached blend file does not work in new dependency graph either.

perfection cat commented

2015-09-01 04:40:54 +02:00

It works when I make it in new dependency graph, but it does not work when I save it and reload it.

blender-admin commented

2015-09-05 14:07:06 +02:00

This issue was referenced by 9683807459

This issue was referenced by 9683807459947330d50e8e38edae430d10d53ffc

Joshua Leung commented

2015-09-05 14:09:15 +02:00

Changed status from 'Open' to: 'Resolved'

Joshua Leung closed this issue

2015-09-05 14:09:15 +02:00

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Ocean modifier animation not working with NLA action-strip #45938