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William F Pokorny <ano### [at] anonymous org> wrote:
>
> Added Antialias_Min_Depth=n ini / +RMn flag option for antialias methods
> 2 and 3(a). It can be thought of as a way to implement initial
> non-adaptive AA sampling - better at resolving detail - prior to
> adaptive AA. Will be available in R11 v0.6.5.0.
This sounds like a great feature for official POV!
> Aside: Method 1 is not adaptive so there is no point in specifying a
> minimum Antialias depth. The depth value is the number of steps in x and y.
Method 1 is adaptive in a minimal way: If a pixel is not determined to require
anti-aliasing, it is not sub-sampled at all. That is, unless this was changed
in POV-Ray 3.7, and the reference manual had not been updated to reflect the
change. I did notice that 3.7 does a better job of method 1 anti-aliasing than
3.6 did, but it still doesn't appear to sub-sample every pixel.
Perhaps +AM1 +RMn can specify the sub-sampling depth for any pixel that is not
selected for anti-aliasing under the old algorithm.
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