Thanks for this Mike.

Andy Cocker

"Mike Williams" <eco### [at] econymdemoncouk> wrote in message
news:3cb7397c@news.povray.org...
> Here's an example of using a BVH motion capture file to control a POVRay
> amimation.
>
> I used the Heirarchy information from the bvh file to derive the default
> positions of the body parts.
>
> I then took the Motion information and editied it so that it can be read
> directly from POVRay. The editing required is:-
>
>  Remove all the text, leaving just a list of numbers
>
>  Replace all the TAB characters with commas
>
> The data for the BVH channels are read into POV variables, and these
> variables are used to position the body parts for each frame.
>
> One subtlety is that, as in this case, the BVH can specify the rotation
> channels in the order Z,X,Y you can't just perform a "rotate <X,Y,Z>" in
> POV. Rotations aren't commutative. What I had to do was perform "rotate
> <0,0,Z> rotate <X,Y,0>" which performs the operations in the required
Z,X,Y
> order. If you are converting a BVH file that has the channels in a
different
> order then you may need to do this differently.
>
>
> Grenade.pov is the POV code
> Grenade.bvh is the original BVH file
> Grenade.txt is the data extracted from the BVH file which is read by POV.
>
> final_frame = 177
>
>
>

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