updatePixels() / Reference / Processing.org

Name

updatePixels()

Description

Updates the display window with the data in the pixels[] array. Use in conjunction with loadPixels(). If you're only reading pixels from the array, there's no need to call updatePixels() — updating is only necessary to apply changes.

Examples

```
size(400,400);
PImage img = loadImage("mt-fuji.jpg");
image(img, 0, 0);
int halfImage = img.width * img.height/2;
loadPixels();
for (int i = 0; i < halfImage; i++) {
  pixels[i+halfImage] = pixels[i];
}
updatePixels();
```