[sldev] Body motion and facial expression tracking, Microsoft did it

[Tateru Nino]

Argent Stonecutter wrote:
> On 2009-06-05, at 23:35, Tateru Nino wrote:
>    
>> Avatars don't occupy a common coordinate-space, however. All we
>> really know about the avatar is that it is drawn based on the
>> position of the dimensionless point representing the agent (and
>> offset up to 10m or so within a volume centered on that point). The
>> avatar itself (AFAIK) exists in its own independent coordinate-
>> space, sans reference to the common coordinate-space in which other
>> agents are positioned, and with even less relation to the coordinate-
>> spaces of other avatars.
>>      
>
> But in the viewer the avatar shares a coordinate space with the world.
> Flexible prims attached to the avatar object global forces, not local
> ones. Particles from prims attached to the avatar obey a global
> coordinate space and can target prims attached to other avatars.
> That's the coordinate space this hypothetical "IK tweaking call" would
> operate in.
>    
But that's all very dependent on the viewer, which is a wee bit less 
than deterministic - so it would be plesiokinematic, basically? Everyone 
would see something different, but that's okay so long as they also see 
something similar?

-- 
Tateru Nino
http://dwellonit.taterunino.net/

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