I’m using JOGL with Double Buffering enabled (I’ve checked to make sure it is enabled) but my animation is still flickery and unpleasant. Are there any other common causes of this problem?
Thanks in advance.
Sounds like you are drawing to the front buffer instead of the back buffer.
Cas 
If you are on windows try starting your app with the additional JVM argument
-Dsun.java2d.noddraw=true
another option you could try is
-Dsun.awt.noerasebackground=true
See https://jogl.dev.java.net/nonav/source/browse/checkout/jogl/doc/userguide/index.html?rev=HEAD&content-type=text/html for details.