[Papervision3D] viewportlayers origin sort.

[Andy Zupko]

Its also useful for things like coverflow, where the planes are close  
and could have sorting problems otherwise.

On May 1, 2009, at 8:45 AM, Carlos Ulloa wrote:

> Imagine you have a grid of cubes, and the front face of one of them  
> opens like a door, displacing the vertices center and visually  
> breaking the sorting. Using origin mode you are sure the depth is  
> calculated at a known point in the object instead of depending on  
> it's polygon shape.
>
> C4
>
>
> On 1 May 2009, at 14:02, John Brookes wrote:
>
>> Understand what it does, but never found a reason to use it.
>> Anybody an example of when it would be better to use this.
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