Text in PGraphic layer

redraw

-I've noticed two things about text in a PGraphic layer: -

pg.beginDraw();
pg.fill(255, 80);
pg.text("asdf", 15, 15);
pg.endDraw();

-Its transparency doesn't change (at least using JAVA2D), and it doesn't render on the layer(?)-

if (frameCount % 60 > 30) image(pg, 0, 0); //inside draw() function

-When the layer is not displayed the text keeps there.-

calsign

I'm not sure if I entirely understand your problem. First instinct response: Do you call background() at the beginning of draw()?

redraw

I wasn't cleaning the screen. What a fool. Thanks. Transparency worked too (only in JAVA2D. In P2D or P3D doesn't work).

It was a simple window object that appears when mouse is pressed.

I should think another fade out implementation .

Window msg;

void setup() {
  size(400, 400);
}

void draw(){
  background(0);
  if (msg != null){
    if (!msg.finish()) msg.show(); else msg = null;
  }
}

void mousePressed(){
  msg = new Window("text here.", 200, 100); 
}

class Window {
  PGraphics win;
  String body;
  int timeout = 255;

  Window(String _body, int w, int h){
    body = _body;
    win = createGraphics(w, h);
  }

  void show(){
    win.beginDraw();
    win.background(255, 0, 0, timeout); //alpha = timeout
    win.fill(255, timeout); //alpha = timeout
    win.textSize(25);
    win.text(body, win.width/2 - textWidth(body), win.height/2);
    win.endDraw();
    image(win, width/2 - win.width/2, height/2 - win.height/2);
  }

  boolean finish(){
    if (timeout == 0) {
      return true;
    }
    else {
      timeout--;
      return false;
    }
  }
}