"clipka" <nomail@nomail> wrote:
> hobBIT <bla### [at] gmxde> wrote:
> > Is it possible to set it to 0.05, 0.025, or is 0.0 the only alternative
> > ? If so, doesn't this mean all AA rays are traced in any case, as the
> > difference to the neihboring pixels is always too big ?
>
> You can even set it to 0.031415926535897932384626433832795 if you like :P
>
> The main issue is that the AA threshold is specified as an absolute value, so
> for instance when you set AA to 0.1, if one pixel is at 1.0 it will kick in if
> the neighboring pixel differs by 10%, but if one pixel is at 0.1 it will kick
> in only if the neighboring pixel differs by 100%.
>
> Maybe this should be one for the TODO list.

Sounds like a good idea, except you might need an absolute cutoff value at some
point to prevent anti-aliasing that you can't see.  I wonder how much different
that approach would look from applying gamma correction before the aa decision?

-Reactor

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