Posted by gouessej on Mar 03, 2023; 6:04pm
URL: https://forum.jogamp.org/Resize-offscreen-drawable-with-GLDrawableHelper-tp4042263p4042270.html

Both have their pros and cons but an undecorated offscreen GLWindow could do the job. By the way, GLWindow doesn't need AWT and JOGL uses PNGJ to write PNG files. My only worry when I read your code is that you need to make the context current but you use a potentially invalidated context.

com.jogamp.opengl.FBObject is a good source of inspiration.