On Sat, 08 Jun 2002 07:29:16 +0930, John VanSickle wrote:

> A number of times I find that I would like certain objects to be
> anti-aliased, but not the whole scene, or for some objects to be
> anti-aliased at a higher level than the rest of the scene.
> 
> What would be the difficulty in programming anti-aliasing regions, such
> that any pixel whose ray was shot into the region would be anti-aliased
> at a certain level?   I picture syntax such as:
> 
> antialias {
>   box { <-1,1,1>,<2,4,4> }
>   depth 3
>   precision .1
> }
> }

Technically feasible, I think but I suspect that the edges of the box
would often become visible as the antialiasing of the background would
change as well.

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