- Processing
- p5.js
- Processing.py
- Processing for Android
- Processing for Pi

- Processing Foundation

This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.

Name | ### clear()
Examples |
    PGraphics pg;

    void setup() {
      size(200, 200);
      pg = createGraphics(100, 100);
    }

    void draw() {
      background(204);
      pg.beginDraw();
      pg.stroke(0, 102, 153);
      pg.line(0, 0, mouseX, mouseY);
      pg.endDraw();
      image(pg, 50, 50);
    }

    // Click to clear the PGraphics object
    void mousePressed() {
      pg.beginDraw();
      pg.clear();
      pg.endDraw();
    }
Description | Clears the pixels within a buffer. This function only works on PGraphics objects created with the createGraphics() function. Unlike the main graphics context (the display window), pixels in additional graphics areas created with createGraphics() can be entirely or partially transparent. This function clears everything in a PGraphics object to make all of the pixels 100% transparent.
Syntax |
    clear()
Returns | void

Updated on July 4, 2018 11:56:44am EDT