Is anybody here familiar with this? I'm just starting (I sort of understand GLSL but not things like why people name vars a_position).

Do you guys know of any good tutorial places to go? I've searched to the extent of my limited knowledge, but most of the tutorials are fairly hard to follow. ex: the code they lay out for you isn't as robust as what's in the source files. Confuuuuusing.

Just looking for tutorial links, thanks!