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demofox

For folks that know me as "the blue noise guy", I've put together a 50 minute video that talks about many of the things I've learned in my ~decade long dive into noise and related topics - up to and including our latest paper published days ago at I3D.
I hope you enjoy it!
youtube.com/watch?v=tethAU66xa

A slide showing how using the golden ratio low discrepancy sequence as a random number generator when giving players treasure in a video game, gives a histogram of treasure nearly matching the histogram described by the actual probabilities. With white noise, the actual histogram of treasure dropped is very different from the probabilities.
A slide showing how random numbers which are positively correlated on the screen give correlated resulting renders, uncorrelated random numbers give uncorrelated renders, and negative correlation random numbers give negatively correlated renders. Negatively correlated renders have the best perceptual quality, despite all three having the same actual error.
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DougMerritt (log😅 = 💧log😄)

@demofox
I know you know what you're doing, but the left side image about "irrational" and "random" reminds me of the famous John Von Neumann quote that I really love:

"Anyone who considers arithmetical methods of producing random digits is, of course, in a state of sin."

Tom Forsyth

@dougmerritt @demofox sin is fine, but almost any trigonometric function will work <da-dum-tish>

May 14, 2024, 05:34 PM·Public
0boosts·4favorites
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DougMerritt (log😅 = 💧log😄)

@TomF @demofox
Heh...you just can never resist, can you. 😆

I wonder what von Neumann would have said to that!

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Tom Forsyth

@dougmerritt @demofox He would have said that was my least significant "bit".

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DougMerritt (log😅 = 💧log😄)

@TomF @demofox
Ok, I'll bite. What's your most significant "bit"? :)

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