Quake's PVS: A hidden gem of rendering optimization

A look at how Quake uses portal graphs to pre-calculate visibility information. Support: https://www.buymeacoffee.com/mattsramblings Mastodon: https://mastodon.cloud/@mattsramblings/ 00:00 Intro 00:43 Portal graphs 01:57 Visibility in a linear graph 05:15 Recursive trace Music Credits: ----------------------- Heavy Interlude by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 licence. https://creativecommons.org/licenses/by/4.0/ Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100515 Artist: http://incompetech.com/ ----------------------- Pioneers by Audionautix is licensed under a Creative Commons Attribution 4.0 licence. https://creativecommons.org/licenses/by/4.0/ Artist: http://audionautix.com/ -----------------------