Remove "extra" border from elements inside HCanvas

[danieltorrer]

I'm getting an extra border in all the elements added to an HCanvas. My guess is that it's coming from the PGraphics transparency and it only occurs when using P3D. I added a sample code to test it.

How can I remove them?

import hype.*;

PFont font1;
HCanvas canvas;

void setup() {
  size(640,640, P3D);
  H.init(this).background(#ffffff);

  canvas = (HCanvas) H.add(new HCanvas(P3D).autoClear(true));  

  font1 = createFont("Arial", 48);

  HText f1 = new HText("some regular text",48, font1);
  f1.fill(#98FCFF).anchorAt(H.CENTER).loc(width/2,height/2);
  f1.noStroke();
  canvas.add(f1);  // change this for H.add to see the difference

  H.drawStage();
  noLoop();
}

void draw() {}

[DonoG]

Depending on what you are doing, you might be able to get away with either

a) Not specifying P3D in your HCanvas:

canvas = (HCanvas) H.add(new HCanvas().autoClear(true));

b) Changing the autoclear setting:

canvas = (HCanvas) H.add(new HCanvas(P3D).autoClear(false));

(Tested with processing 3.3.6 on Windows...your results may vary)

[hype]

close... need to add the autoClear(true) to H and remove it from HCanvas

PFont font1;
HCanvas canvas;

void setup() {
  size(640,640, P3D);
  H.init(this).background(#ffffff).autoClear(true);

  canvas = (HCanvas) H.add(new HCanvas(P3D));  

  font1 = createFont("Arial", 48);

  HText f1 = new HText("some regular text",48, font1);
  f1.fill(#98FCFF).anchorAt(H.CENTER).loc(width/2,height/2);
  f1.noStroke();
  canvas.add(f1);  // change this for H.add to see the difference

  H.drawStage();
  noLoop();
}

void draw() {}

:) joshua

edit * and if you'd like to understand why... it's because when you do autoClear(true) on HCanvas which is actually a PGraphics... processing by default executes a PGraphics.clear() if you look up .clear() it's RGBA so 0,0,0,0 - red = 0, green = 0, blue = 0, alpha = 0... so this doesn't quite behave as you would think... it's clearing with black with 0 alpha... but it actually leaves a black "residue" on our assets being painted. bummer but true.