Implementation for Blue-noise Dithered Sampling

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jbikker
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Joined: Mon Nov 28, 2011 8:18 am
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Re: Implementation for Blue-noise Dithered Sampling

Postby jbikker » Thu Feb 09, 2017 11:32 am

This is unidirectional path tracing with uniform random variables everywhere, 8 bounces, RR, MIS, NEE, Lambert BRDF.
Left side replaces uniform random variables with the tile. For subsequent pixels I shift the tile randomly over x and y, instead of adding an offset to each value.

toxie
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Joined: Mon Nov 28, 2011 12:30 pm
Location: germany
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Re: Implementation for Blue-noise Dithered Sampling

Postby toxie » Thu Feb 09, 2017 4:22 pm

This is from one of my private projects where i included the masks some months ago, using 3 dimensions to compute SSAO, left with 64x64 tiled blue noise, right with 64x64 tiled white noise (but both using the same QMC set for the samples in each pixel then). For such a case it can make a really nice difference.

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