[Fluxus] anti-alias, depth-sort

[Kassen]

Hey Dave!


> It's due to the origin of the ribbon primitive being behind the screen,
> in fact in the middle of the moving bar.


Ah! That makes perfect sense. I have no idea why I didn't consider that as
that would be quite a important factor in depth-sorting. Whoops :-)



> Transparency should always be considered broken with hardware 3D, so
> there are always some trade offs involved.
>


Still, this one also leaves space for creativity as this means that we can
now have a "portable hole" by intentionally setting the origin wrong.

Thanks for your help,
Kas.
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