Color

Functions for manipulating color.

• brightness
• contrast
• color vec4
• colorama
• invert
• luma
• posterize
• saturate
• shift
• thresh

brightness

.brightness( amount )

• amount :: float (default 0.4)

Example

osc(20,0,2)
  .brightness( ({time}) => Math.sin(time) )
  .out(o0)

contrast

.contrast( amount )

• amount :: float (default 1.6)

Larger amount value makes higher contrast.

Example

// 20Hz oscillator with contrast interpolating between 0.0-5.0
osc(20).contrast( ({time}) => Math.sin(time) * 5 ).out(o0)

color vec4

.color( r, g, b )

• r :: float
• g :: float
• b :: float

Colorize texture.

Example

// 20Hz oscillator source
// color sequence of Red, Green, Blue, White, Black
// output to buffer o0
osc(20).color([1,0,0,1,0],[0,1,0,1,0],[0,0,1,1,0]).out(o0)

colorama

.colorama( amount )

• amount :: float (default 0.005)

Shift HSV values.

Example

// 20Hz oscillator source
// color sequence of Red, Green, Blue, White, Black
// colorama sequence of 0.005, 0.5, 1.0 at 1/8 speed
// output to buffer o0
osc(20)
  .color([1,0,0,1,0],[0,1,0,1,0],[0,0,1,1,0])
  .colorama([0.005,0.33,0.66,1.0].fast(0.125))
  .out(o0)

// 
noise(3,0.1).colorama( ({time}) => Math.sin(time/5) ).out(o0)

invert

.invert( amount )

• amount :: float (default 1.0)

Invert color.

Example

solid(1,1,1).invert([0,1]).out(o0)

luma

.luma( threshold, tolerance )

• threshold :: float (default 0.5)
• tolerance :: float (default 0.1)

Example

// default
osc(10,0,1).luma(0.5,0.1).out(o0)

osc(10,0,[0,0.5,1,2]).luma([0.1,0.25,0.75,1].fast(0.25),0.1).out(o0)

posterize

.posterize( bins, gamma )

• bins :: float (default 3.0)
• gamma :: float (default 0.6)

Example

// static gradient posterized, varying bins
gradient(0).posterize( [1, 5, 15, 30] , 0.5 ).out(o0)

// static gradient posterized, varying gamma
gradient(0).posterize( 3, [0.1, 0.5, 1.0, 2.0] ).out(o0)

saturate

.saturate( amount )

• amount :: float (default 2.0)

Example

osc(10,0,1).saturate( ({time}) => Math.sin(time) * 10 ).out()

shift

.shift( r, g, b, a )

• r :: float (default 0.5)
• g :: float (default 0.5)
• b :: float (default 0.5)
• a :: float (default 0.5)

Example

thresh

.thresh( threshold, tolerance )

• threshold :: float (default 0.5)
• tolerance :: float (default 0.04)

Example

// default
noise(3,0.1).thresh(0.5,0.04).out(o0)

noise(3,0.1)
  .thresh( ({time})=>Math.sin(time/2) , [0.04,0.25,0.75,1].fast(0.25) )
  .out(o0)