Posted by gouessej on Mar 01, 2020; 9:55pm
URL: https://forum.jogamp.org/No-redraw-after-changing-colors-tp4040384p4040396.html

Please provide a SSCCE and use an Animator:
https://jogamp.org/wiki/index.php/Rudimentary_standalone_example_using_the_fixed_pipeline_by_Julien_Gouesse