[Bf-cycles] Antialiasing overbright areas in Cycles

[Brecht Van Lommel]

I'd like to investigate a solution here, we can in principle support
FSA, and there's some other tricks that I'd like to try. But for now
the only way to solve this is to handle a high resolution and scale
down afterwards.

Brecht.

On Sun, Mar 3, 2013 at 3:24 PM, Ton Roosendaal <ton at blender.org> wrote:
> Hi,
>
> There's a very practical reason why you cannot anti-alias it.
>
> You perceive aliasing *only* after putting it on a clamped display. If your screen would show values > 1.0 anti-aliasing would work. :)
>
> So the proper way to antialias is to first clamp colors of samples to display range, then merge all samples to average them. This is why Blender Internal "FSA" does a good job. So you can composite (per sample) the high dynamic range, then it clamps, and then merges the colors values.
>
> For Cycles this trick is not so obvious to add, since it takes 100s of samples per pixel...
>
> -Ton-
>
> ------------------------------------------------------------------------
> Ton Roosendaal  Blender Foundation   ton at blender.org    www.blender.org
> Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands
>
> On 3 Mar, 2013, at 14:40, Adriano Oliveira wrote:
>
>> Is there a way do better antialiasing overbright areas?
>>
>> PS: I don't want to clamp the highlights.
>>
>> Adriano A. Oliveira
>>
>> _______________________________________________
>> Bf-cycles mailing list
>> Bf-cycles at blender.org
>> http://lists.blender.org/mailman/listinfo/bf-cycles
>
> _______________________________________________
> Bf-cycles mailing list
> Bf-cycles at blender.org
> http://lists.blender.org/mailman/listinfo/bf-cycles