Crash with "non-smooth" particles in latest git master

[JPL]

Log attached. My steps to repro:
1. sync and compile latest GZDoom
2. run any map with a rocket launcher, eg doom2 map30
3. open the opengl preferences menu and set particles to "square" or "round"
4. collect and fire the rocket launcher

My config: x86-64 Arch Linux, nvidia GTX 660 with 370.28 binary drivers. Can provide more info if it helps.

Wild guess, but maybe the recent GL work missed some primitive draw functions that aren't supported in the GL3 Core profile? I remember GLQuake and Quake2's particles using some GL1-era thing... disregard if not the case.

[Rachael]

This problem happens in Windows 64-bit, too. Easy to reproduce. Will try debugging on an ATI if it happens there, too.

[Graf Zahl]

fixed.