Posted by Demoscene Passivist on Nov 17, 2010; 10:37am
URL: https://forum.jogamp.org/JOGL-texture-size-limit-tp1914046p1916478.html

>but try googling adaptive shadow mapping and you'll see they propose shadow texture sizes of over 2048x2048 and noone suggests that should be any problem

With 2048x2048 there is sure no problem with any GPU as up2date hardware limit is 8129x8192 (as I stated before): "8192 pel is the current maximum texture size on nearly all up2date GPUs"