Posted by jmaasing on Feb 11, 2016; 6:45am
URL: https://forum.jogamp.org/Does-openGL-has-a-limit-of-how-many-vertices-one-can-pass-to-glDrawArrays-function-tp4036161p4036164.html

The limiting factors are the hardware (free memory/GPU memory et c) and video card driver so it is different on different computers. You can always try to put millions in the buffer and see if it works - it actually might work.