Using PGraphics as background?

msrdjan

Hi

This problem is driving me nuts! Is it possible to use PGraphics for a Sketch background?

Here is the example:

PGraphics pg;

void setup(){
  size(640, 480);
  pg = createGraphics(640, 480);
  gMethod();
}

void draw(){
  background(pg);
}

void gMethod(){
  pg.beginDraw();
  fill(255);
  rect(0, 0, 100, 100);
  pg.endDraw();
}

It displays the graphics for one frame and then it draws black. Is this a way how PGraphics behaves? Does it expire after one draw cycle?

Thanks

KevinWorkman

You need to call the fill() and rect() functions of your PGraphics instance, not the fill() and draw() functions of your sketch.

pg.fill(255);
pg.rect(0, 0, 100, 100);

Compare your code to the documentation: http://www.processing.org/reference/PGraphics.html

msrdjan

Ha, ha, ha! This is so true! Thank you for saving me from insanity.

KevinWorkman

Just because I helped you with your code does NOT mean I saved you from insanity. You might be crazy as a loon! :p

msrdjan

Well, I don't know... Dali's quote: "The difference between me and the crazy man is that I am not crazy!" is the only psychotherapy I've had so far... 8-}