Antialiasing problems in bright areas

Lesson by Ciro Sannino | Official 5SRW study material



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It could happens that very bright areas (tipically V-Ray Light) have this kind of artfact:

subp-1

 

This happens because the antialiasing is not able to find the right average value for the single pixel, especially passing from a low pixel value to a very high one. A way to avoid this imperfections is cutting out all values exceeding 1,0, enablig these tow options:

sub-pix3

 

After this, the result will be:

subp-2

 

Note for experts: Cutting values exceeding 1,0 is not suitable if you’re planning to save in 32bit (e.g. exr) since this format allows to use pixel values exceeding 1,0.


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