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| Export mass objects (center of gravity) https://forum.ipisoft.com/viewtopic.php?f=13&t=6505 |
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| Author: | amdbcg [ Mon Nov 12, 2012 2:07 pm ] |
| Post subject: | Export mass objects (center of gravity) |
I'm trying to export the center of gravity calculated from the View --> mass objects How do I export these objects ? |
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| Author: | vmaslov [ Tue Nov 13, 2012 8:05 am ] |
| Post subject: | Re: Export mass objects (center of gravity) |
Currently, iPi Mocap Studio cannot export the gravity center animation. It can be relatively easy computed given the exported skeleton animation and bones' masses. Though, recently we've got the same request a couple of times. So we may add this function to our software in future releases. But no promises until major features are released :) |
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| Author: | amdbcg [ Tue Nov 13, 2012 5:58 pm ] |
| Post subject: | Re: Export mass objects (center of gravity) |
Quote: It can be relatively easy computed given the exported skeleton animation and bones' masses. oh cool :) . So there is a solution. Would you mind explaining how to do this / provide links to resources ? (Currently using blender3d) |
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| Author: | vmaslov [ Fri Nov 16, 2012 4:35 am ] |
| Post subject: | Re: Export mass objects (center of gravity) |
The center of mass of some object group (for example, skeleton consisting of bones) is calculated using formula: center_position = (position1 * mass1 + position2 * mass2 + ... + positionN * massN) / (mass1 + mass2 + ... + massN) Blender supports scripting in Python, so it should be not too complex (for a person having appropriate skills :) to write a script doing this calculations. I have googled a couple of examples for you: http://books.google.ru/books?id=13fXlLfEM54C&pg=PT94&source=gbs_toc_r&cad=4#v=onepage&q&f=false http://blenderartists.org/forum/archive/index.php/t-202716.html (links to script seem not working now, but you may try to contact with its author) |
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