Comment 2 by project member andres.c...@gmail.com,  Today (39 minutes ago)

The OpenGL-based renderers (P2D and P3D) cannot be used for PGraphics surfaces when the main renderer is JAVA2D, because they require the main surface to be OpenGL as well (since they depend on a main OpenGL context, that in turn must be attached to the output frame). 

I will add detection code that writes out an appropriate warning when this situation is detected.

Cc:  f...@processing.org

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Comment 3 by carlo...@gmail.com,  Today (19 minutes ago)

Using OpenGL rendering for PGraphics surfaces has always previously worked, and it is an extremely useful tool. Is it not possible anymore, or is there a method to change the main renderer from JAVA2D to OpenGL?

Comment 4 by project member andres.c...@gmail.com,  Today (4 minutes ago)

You can use either P2D or P3D as the main renderers:

PGraphics pg;

void setup() {

  size(100, 100, P2D);

  // size(100, 100, P3D); // also ok

  pg = createGraphics(80, 80, P2D);

}

void draw() {

  pg.beginDraw();

  pg.background(100);

  pg.stroke(255);

  pg.line(40, 40, mouseX, mouseY);

  pg.endDraw();

  image(pg, 10, 10); 

}

You can also create a JAVA2D PGraphics surface with either P2D or P3D as the main renderer. What is not possible at this point is to create a P2D/P3D PGraphics with JAVA2D as the main renderer.