[Bf-committers] Patch to allow recording of static objects in game engine

[James Yonan]

Some of you may have seen my 11 year old son Andrew present his "Marble 
Factory" at Blender Conference 2013 in Amsterdam last month.

http://youtu.be/XA_715Fd7so?t=5m38s

What you may not know is that initially, the animation didn't work 
properly because of a limitation in Blender where the motion of static 
objects in the game engine (i.e. objects moved by logic bricks) is 
ignored even if recording is enabled via Game>Record Animation.

Luckily I was able to develop a patch to fix the issue, but 
unfortunately the patch has been languishing for months in the tracker 
without any attention.

http://developer.blender.org/T35183

How can I expedite the process of getting this patch accepted and merged?

The latest patch is blender-static-animate-3.patch and has been freshly 
rebased to 2.69 (and merges cleanly with master as well).

The Marble Factory animation is here:

http://youtu.be/I__iUXl7iNc

Basically the whole animation would be impossible without this patch, 
because nothing would move except the marbles and the camera.  All of 
the moving non-marble objects are static objects animated by logic 
bricks, and Blender will not record the animation for these objects 
without the patch.

Thanks,
James

On 01/05/2013 03:32, Dalai Felinto wrote:
> Hi James,
> Could you upload the patch in the blender tracker?
> http://projects.blender.org/tracker/?atid=127&group_id=9&func=browse
>
> It's better to discuss eventual changes there
> (and an example file there would help as well).
>
> My only concern with the patch (and we are better off discussing that in
> the tracker) is that I would probably have a m_animate property
> (instead of objprop.m_static_animate).
> This way we don't need to check IsDynamyc() inside RecordAnimation().
>
> That also means that if you have a dynamic object and temporary disable its
> Dynamics (via logic bricks) the object will still has its movements
> recorded, which I think it's reasonable (it may already happen, not sure if
> the actuator affects the result of IsDynamic() - too late now for me to
> check the code ;).
>
> Nice video by the way.
>
> Thanks,
> Dalai
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