Posted by caderape on May 02, 2020; 10:05pm
URL: https://forum.jogamp.org/glClear-issue-tp4040576p4040584.html

Okay, i found a solution. A tricky one with double condition, but the point is, it work as i want.

The display is called two time at begining, so we have to skip the first frame, and clear the surface at the second display.
Then we can keep the background color and not have a flip between the black screen and the colored screen, and we can save old draws.

https://pastebin.com/d1uV2hmX

edit: nvm, when i change the color of the background while running, it start flipping with the old color. I will just give up. Thx for the help, i'm gonna try javaFX