[Bf-committers] Blender Center of Mass - Voxel data better algorithm?

[panjz]

How about tetrahedron tessellation algorithm? IMO it will produce *exact* result (no mathematical proof because I think it's trivially true ;) Correct me if I'm wrong ) if the density of material is constant. If we only need to calculate center of mass we can allow 'negative' tetrahedron in tessellation, i.e. tetrahedron with negative orientation, hence negative mass. You can look at 2D case, it should be much simpler (triangle tessellation with 'negative' triangle allowed) and the whole idea is same.

> Date: Sat, 15 Jun 2013 23:26:43 +0100
> From: britalmeida at gmail.com
> To: joelgodin at ymail.com; bf-committers at blender.org
> Subject: Re: [Bf-committers] Blender Center of Mass - Voxel data better	algorithm?
> 
> Is the problem different vertex density?
> I don't know how it is currently implemented, but, if vertex density is the
> problem, the face's area can weight in with no need for voxel dataset.
> 
> --
> Inês Almeida
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