hydra/docs/funcs_geometry.md

Geometry

Functions for manipulating geometry.

• kaleid
• pixelate
• repeat
• repeatX
• repeatY
• rotate
• scale
• scrollX
• scrollY

kaleid

.kaleid( nSides )

• nSides :: float (default 4.0)

Kaleidoscope effect with nSides repetition.

Example

osc(25,-0.1,0.5).kaleid(50).out(o0)

pixelate

.pixelate( x, y )

• pixelX :: float (default 20.0)
• pixelY :: float (default 20.0)

Pixelate texture with pixelX segments and pixelY segments.

Example

// default
noise().pixelate(20,20).out(o0)

noise()
  .mult(osc(10,0.25,1))
  .scrollY(1,0.25)
  .pixelate([100,40,20,70].fast(0.25))
  .modulateRotate(src(o0).scale(0.5),0.125)
  .diff(src(o0).rotate([-0.05,0.05].fast(0.125)))
  .out(o0)

repeat

.repeat( repeatX, repeatY, offsetX, offsetY )

• repeatX :: float (default 3.0)
• repeatY :: float (default 3.0)
• offsetX :: float (default 0.0)
• offsetY :: float (default 0.0)

Example

// default
shape().repeat(3.0, 3.0, 0.0, 0.0).out()

// dogtooth factory
shape(1.25,0.5,0.25)
  .repeat(3, 3)
  .scale(2)
  .repeat(5, 5, ({time}) => Math.sin(time), ({time}) => Math.sin(time/2))
  .out(o0)

repeatX

.repeatX( reps, offset )

• reps :: float (default 3.0)
• offset :: float (default 0.0)

Example

// default
shape().repeatX(3.0, 0.0).out()

osc(5,0,1)
  .rotate(1.57)
  .repeatX([1,2,5,10], ({time}) => Math.sin(time))
  .out()

repeatY

.repeatY( reps, offset )

• reps :: float (default 3.0)
• offset :: float (default 0.0)

Example

// default
shape().repeatY(3.0, 0.0).out()

osc(5,0,1)
  .repeatY([1,2,5,10], ({time}) => Math.sin(time))
  .out()

rotate

.rotate( angle, speed )

• angle :: float (default 10.0)
• speed :: float (default 0.0)

Rotate texture.

Example

osc(50).rotate( ({time}) => time%360 ).out(o0)

osc(10,1,1)
    .rotate( ({time}) => time%360, ({time}) => Math.sin(time*0.1)*0.05 )
    .out(o0)

scale

.scale( size, xMult, yMult )

• size :: float (default 1.5)
• xMult :: float (default 1.0)
• yMult :: float (default 1.0)

Scale texture.

Example

// default
shape().scale(1.5,1,1).out()

shape().scale(1.5,[0.25,0.5,0.75,1].fast(0.25),[3,2,1])
  .invert([0,1].fast(0.25))
  .kaleid(5)
  .kaleid(12)
  .scale( ({time})=>Math.sin(time/5)*0.5 )
  .rotate(1,1)
  .out(o0)

scrollX

.scrollX( scrollX, speed )

• scrollX :: float (default 0.5)
• speed :: float (default 0.0)

Example

// default
osc(10,0,1).scrollX(0.5,0).out()

// x position
osc(10,0,1).scrollX([0,0.25,0.5,0.75,1].fast(4),0).out()

// scroll speed
gradient(1).scrollX(0, ({time}) => Math.sin(time*0.05)*0.05 ).out()

gradient(0.125)
  .scrollX(0, ({time}) => Math.sin(time*0.05)*0.05 )
  .scrollY(0, ({time}) => Math.sin(time*0.01)*-0.07 )
  .pixelate([5,2,10],[15,8])
  .scale(0.15)
  .modulate(noise(1,0.25))
  .out()

scrollY

.scrollY( scrollY, speed )

• scrollY :: float (default 0.5)
• speed :: float (default 0.0)

Example

// default
osc(10,0,1).scrollY(0.5,0).out()

// y position
osc(10,0,1).scrollY([0,0.25,0.5,0.75,1].fast(4),0).out()

// scroll speed
gradient(1).scrollY(0, ({time}) => Math.sin(time*0.05)*0.05 ).out()

gradient(0.125)
  .scrollX(0, ({time}) => Math.sin(time*0.05)*0.05 )
  .scrollY(0, ({time}) => Math.sin(time*0.01)*-0.07 )
  .pixelate([5,2,10],[15,8])
  .scale(0.15)
  .modulate(noise(1,0.25))
  .out()