Add some notes on flow noise
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@ -38,4 +38,8 @@ to run the ClojureScript version in the browser.
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too](http://www-evasion.imag.fr/Publications/2001/PN01/).)
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too](http://www-evasion.imag.fr/Publications/2001/PN01/).)
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- Use 'real' simplex or OpenSimplex noise implementation that has a
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- Use 'real' simplex or OpenSimplex noise implementation that has a
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gradient instead of doing it numerically. (If I understand Perlin &
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gradient instead of doing it numerically. (If I understand Perlin &
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Neyret's pseudo-advection right, it might also simplify that.)
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Neyret's pseudo-advection right, it might also simplify that. Also,
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note that Stefan Gustavson's
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[implementation](http://webstaff.itn.liu.se/~stegu/aqsis/flownoisedemo/)
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includes a parameter to rotate these gradients for this
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pseudo-advection - see `srdnoise23.c.`)
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