Copying PGraphics to PImage using .get() or .copy() clears PGraphics object, if the renderer is P2D

Created by: agrshch

Description

An attempt of copying information from PGraphics to PImage using get() or copy() clears the PGraphics object if P2D renderer is used. It makes impossible many things, for example using PGraphics (or its copy) as a texture for the shader.

Expected Behavior

successful copying, like with default renderer

Current Behavior

both PGraphics and PImage are empty.

Steps to Reproduce

PGraphics img1;

void setup() {
size(300, 300, P2D);

img1 = createGraphics(200, 200, P2D);

img1.beginDraw();
img1.background(120);
img1.endDraw();

PImage img2 = img1.get(); // if comment out this line — grey rectangle appears
}

void draw() {
background(255);
image(img1, 100, 20);
}

Your Environment

• Processing version: 4.2
• Operating System and OS version: Mac OS 10.15.7
• Other information:

Inizia eseguendo lo sketch P2D fornito e seguendo i punti di ingresso get() e copy() di PGraphics nella libreria Java principale. Confronta il comportamento di P2D con quello del renderer predefinito, verificando perché la sorgente e la destinazione diventano vuote. Il lavoro è completato quando la copia preserva i contenuti di PGraphics e produce una PImage popolata sotto P2D.