Great work at the Quake 3 bsp code!

[Lambda]

Seriously, i dont know what have exactly changed but the peformance increment is impressive

Irrlicht 1.5 with the Quake 3 Shader example gives me 800-1200FPS
Irrlicht 1.6 with the Quake 3 Shader example gives me 1200-2000FPS without large FPS drops, i can render the whole map and stay at 1400FPS

Great work

PS: What are the improvements exactly? just for curiosity.

[randomMesh]

What are the improvements exactly?

Pick one.