Posted by Pixelapp on Jul 29, 2012; 8:24pm
URL: https://forum.jogamp.org/Premultiplied-Textures-tp4025659p4025696.html

To make the transparent parts of a png invisible all I do is turn on alpha testing and enable blending. That would be only three lines of code.

Sure there are many other ways to do it, but this is the fastest and shortest one.