Reference. The Processing Language was designed to facilitate the creation of sophisticated visual structures.

Structure

catch class draw() exit() extends loop() noLoop() popStyle() pushStyle() redraw() setup() , (comma) . (dot) /** */ (doc comment) // (comment) = (assign) [] (array access) {} (curly braces) false final implements import /* */ (multiline comment) new null () (parentheses) private public return ; (semicolon) static super this true try void

Environment

cursor() displayHeight displayWidth focused frameCount frameRate() frameRate height noCursor() size() width

Data

Primitive

boolean byte char color double float int long

Composite

Array ArrayList FloatDict FloatList HashMap IntDict IntList JSONArray JSONObject Object String StringDict StringList Table TableRow XML

Conversion

binary() boolean() byte() char() float() hex() int() str() unbinary() unhex()

String Functions

join() match() matchAll() nf() nfc() nfp() nfs() split() splitTokens() trim()

Array Functions

append() arrayCopy() concat() expand() reverse() shorten() sort() splice() subset()

Control

Relational Operators

!= (inequality) < (less than) <= (less than or equal to) == (equality) > (greater than) >= (greater than or equal to)

Iteration

for while

Conditionals

break case ?: (conditional) continue default else if switch

Logical Operators

! (logical NOT) && (logical AND) || (logical OR)

Shape

createShape() loadShape() PShape

2D Primitives

arc() ellipse() line() point() quad() rect() triangle()

Curves

bezier() bezierDetail() bezierPoint() bezierTangent() curve() curveDetail() curvePoint() curveTangent() curveTightness()

3D Primitives

box() sphere() sphereDetail()

Attributes

ellipseMode() noSmooth() rectMode() smooth() strokeCap() strokeJoin() strokeWeight()

Vertex

beginContour() beginShape() bezierVertex() curveVertex() endContour() endShape() quadraticVertex() vertex()

Loading & Displaying

shape() shapeMode()

Input

Mouse

mouseButton mouseClicked() mouseDragged() mouseMoved() mousePressed() mousePressed mouseReleased() mouseWheel() mouseX mouseY pmouseX pmouseY

Keyboard

key keyCode keyPressed() keyPressed keyReleased() keyTyped()

Files

BufferedReader createInput() createReader() loadBytes() loadJSONArray() loadJSONObject() loadStrings() loadTable() loadXML() open() parseXML() saveTable() selectFolder() selectInput()

Time & Date

day() hour() millis() minute() month() second() year()

Output

Text Area

print() printArray() println()

Image

save() saveFrame()

Files

beginRaw() beginRecord() createOutput() createWriter() endRaw() endRecord() PrintWriter saveBytes() saveJSONArray() saveJSONObject() saveStream() saveStrings() saveXML() selectOutput()

Transform

applyMatrix() popMatrix() printMatrix() pushMatrix() resetMatrix() rotate() rotateX() rotateY() rotateZ() scale() shearX() shearY() translate()

Lights, Camera

Lights

ambientLight() directionalLight() lightFalloff() lights() lightSpecular() noLights() normal() pointLight() spotLight()

Camera

beginCamera() camera() endCamera() frustum() ortho() perspective() printCamera() printProjection()

Coordinates

modelX() modelY() modelZ() screenX() screenY() screenZ()

Material Properties

ambient() emissive() shininess() specular()

Color

Setting

background() clear() colorMode() fill() noFill() noStroke() stroke()

Creating & Reading

alpha() blue() brightness() color() green() hue() lerpColor() red() saturation()

Image

createImage() PImage

Loading & Displaying

image() imageMode() loadImage() noTint() requestImage() tint()

Textures

texture() textureMode() textureWrap()

Pixels

blend() copy() filter() get() loadPixels() pixels[] set() updatePixels()

Rendering

blendMode() createGraphics() PGraphics

Shaders

loadShader() PShader resetShader() shader()

Typography

PFont

Loading & Displaying

createFont() loadFont() text() textFont()

Attributes

textAlign() textLeading() textMode() textSize() textWidth()

Metrics

textAscent() textDescent()

Math

PVector

Operators

% (modulo) * (multiply) *= (multiply assign) + (addition) ++ (increment) += (add assign) - (minus) -- (decrement) -= (subtract assign) / (divide) /= (divide assign)

Bitwise Operators

& (bitwise AND) << (left shift) >> (right shift) | (bitwise OR)

Calculation

abs() ceil() constrain() dist() exp() floor() lerp() log() mag() map() max() min() norm() pow() round() sq() sqrt()

Trigonometry

acos() asin() atan() atan2() cos() degrees() radians() sin() tan()

Random

noise() noiseDetail() noiseSeed() random() randomGaussian() randomSeed()

Constants

HALF_PI PI QUARTER_PI TAU TWO_PI