blendMode() doesn't work with text

Patakk

Hello,

In my program I want to use different blend modes when drawing text, but the text is not affected by the blendMode() function call.

Here's a simple program that demonstrates the issue, just move the mouse over the rectangle and see how the ellipse is correctly blended, as opposed to the letter 'K'.

void setup(){
    size(600, 600, P2D);

    rectMode(CENTER);
    textSize(100);
    textAlign(CENTER, CENTER);
}

void draw(){
    blendMode(NORMAL);
    background(50);

    noStroke();
    fill(255);
    rect(300, 300, 100, 100);

    blendMode(EXCLUSION);
    text("K", mouseX+50, mouseY);
    ellipse(mouseX-50, mouseY, 75, 75);
}

cameyo

It works with size(600, 600). :-/

kfrajer

I tried this... partial solution as I had to change he background color to zero to nullify the effect of exclusion btw backgrounds.

Kf

PGraphics gr;
void setup() {
  size(600, 600, P2D);
  rectMode(CENTER); 
  imageMode(CENTER);
  smooth(4);

  gr=createGraphics(200, 200, P2D);
  gr.beginDraw();
  gr.background(0);  
  gr.fill(255);
  gr.noStroke();
  gr.textSize(100);
  gr.textAlign(CENTER, CENTER);
  gr.text("K", gr.width/2+50, gr.height/2);
  gr.ellipse(gr.width/2-50, gr.height/2, 75, 75);
  gr.endDraw();
}

void draw() {
  blendMode(NORMAL);
  background(0);
  noStroke();
  fill(255);
  rect(300, 300, 100, 100);

  blendMode(EXCLUSION);
  image(gr, mouseX, mouseY);
}