Posted by gouessej on Nov 07, 2019; 9:09am
URL: https://forum.jogamp.org/Offscreen-Opengl-App-tp4040127p4040136.html

Look for com.jogamp.opengl.FBObject in the projects "jogl" and "jogl-demos". You can look at an example based on JogAmp's Ardor3D Continuation and JOGL in the project "ardor3d-screenshot":
https://github.com/letmaik/ardor3d-screenshot/blob/master/src/main/java/com/github/neothemachine/ardor3d/screenshot/JoglNewtScreenshotCanvas.java It uses JOGL for server-based rendering. It might be a bit difficult to understand how JogAmp's Ardor3D Continuation works to reproduce the same behaviour in pure JOGL without this engine but it seems to do what you're looking for.