FRossi Posted September 6, 2016 Share Posted September 6, 2016 Hi guys, i was doing a test render and when i looked at the alpha and at the Zdepth pass i was wondering why the edges were so sharp and "artifact looking". Here's the result whit and without the subpixel sampling enabled in Mantra with PBR and 3/3 sampling. In the firs attachment there is the one without the subpixel checkbox enabled, in the second there is the subpixel enabled and strangely the alpha is hasa got some artifacts , why should it happen ieven if it slow down a lot the render time and get as result ultra large images? Thanks in advance Alpha_NO_Subpixel.tiff Alpha_Subpixel.tiff Quote Link to comment Share on other sites More sharing options...
Guest tar Posted September 6, 2016 Share Posted September 6, 2016 Because the sub-pixel checkbox means to not bin/resample the pixels together. i.e. a 1000x1000 at 3/3 pixel samples is really a 3000x3000 render. Quote Link to comment Share on other sites More sharing options...
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