CS2's levels are suspiciously bright and colourful. But does light REALLY bleed like this? I could have gone outside to take a look, but instead HACKED CS 1.6 to display raytracing. As for whether it should be... feel free to discuss whether it should be in the comments section :P
XASH raytracing - https://github.com/sultim-t/xash-rt/r...
CS:GO maps in 1.6 - https://gamebanana.com/studios/34724
0:00 - BRIGHT
0:24 - CS 1.6 raytracing?!
1:31 - History of CS lighting
4:01 - Dust2 compared
5:29 - Italy compared
6:32 - Other maps
8:34 - Office