Posted by Vishiv on Oct 20, 2016; 8:40am
URL: https://forum.jogamp.org/Superposing-Image-in-a-JOGL-animation-tp4037332p4037336.html

Because the drawing of each image is costing a lot of calcultation,
because it is an animation =,
and because i don't want to superpose just 2 image but a number that is not known at the begining.

Is it true that each call to display clear the color buffer ?
Is it possible to change this comportement ?

If it is necessary, is it possible to backup the previous image between to call of display ?