getting attach prop offsets

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  02 February 2013
getting attach prop offsets

I'm working on a game engine weapon/prop attachment scheme,
I need to extract the offset pos and rotation of a weapon prop form its parent joint in a skeleton.

can it really be this simple?


offset_pos=$attachment_01.pos-$attachment_01.parent.pos
offset_rotation= $attachment_01.rotation-$attachment_01.parent.rotation


seems too easy...am I over looking something?
 
  02 February 2013
Originally Posted by Mambo4: I'm working on a game engine weapon/prop attachment scheme,
I need to extract the offset pos and rotation of a weapon prop form its parent joint in a skeleton.

can it really be this simple?


  offset_pos=$attachment_01.pos-$attachment_01.parent.pos
  offset_rotation= $attachment_01.rotation-$attachment_01.parent.rotation
  


seems too easy...am I over looking something?

your disbelief is absolutely appropriate...
to transform in parent coordinate system ('transform offset' in your terminology) is

 <node>.transform * (inverse <node>.parent.transform)
 
 
  02 February 2013
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