rsc3/doc-schelp/HelpSource/Classes/Hasher.scrbl

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2022-08-24 13:53:18 +00:00
#lang scribble/manual
@(require (for-label racket))
@title{Hasher}
Scrambled value with a hash function.@section{categories}
UGens>Filters>Nonlinear, UGens>Random
@section{description}
Returns a unique output value from -1 to +1 for each input value
according to a hash function. The same input value will always produce
the same output value. The input need not be in the range -1 to +1.
@section{classmethods}
@section{method}
ar, kr
@section{argument}
in
The input signal.
@section{argument}
mul
Output will be multiplied by this value.
@section{argument}
add
This value will be added to the output.
@section{Examples}
@racketblock[
{ Hasher.ar(Line.ar(0,1,1), 0.2) }.play;
// Even adding a small amount to the input can result in a very different output. Compare these two examples:
(
{
SinOsc.ar(
Hasher.kr(MouseX.kr(0,10).round(1), 300, 500)
) * 0.1
}.play;
)
(
{
SinOsc.ar(
Hasher.kr(MouseX.kr(0,10).round(1) + 0.0001, 300, 500)
) * 0.1
}.play;
)
// Output stays constant while not moving the mouse.
(
{
SinOsc.ar(
Hasher.kr(MouseX.kr(0,10), 300, 500)
) * 0.1
}.play;
)
::
]