Posted by gouessej on Jul 22, 2014; 9:58am
URL: https://forum.jogamp.org/Need-Help-Solving-OpenGL-GLSL-4-4-Issues-tp4032557p4032619.html

Hi

I can't run your code at home as my hardware isn't capable enough. However, why do you expect to see a triangle whereas you use GL_POINTS with glDrawArrays (and you ask it to draw a single primitive)? Why do you put no vertex data into the VAO? I don't see how this code could draw a triangle.