Posted by gouessej on Dec 27, 2020; 1:06pm
URL: https://forum.jogamp.org/SOLVED-Purple-and-Green-Lines-Stripes-on-All-JOGL-Windows-tp4040923p4040932.html

Please try this example too:
https://jogamp.org/cgit/jogl-demos.git/tree/src/demos/es2/RawGL2ES2demo.java?id=HEAD