I added portals into software Quake

How I added portals into Quake's software renderer. These are gameplay portals, a bit like the ones in the game Portal, as opposed to the type used for vis calculations. Support my channel: https://www.buymeacoffee.com/mattsramblings Follow me on Mastodon: https://mastodon.cloud/@mattsramblings/ Thanks again to bmFbr for the instant teleporter feature. Download the Alkaline mod here: https://alkalinequake.wordpress.com/ 00:00 Introduction 00:47 Transformation 01:22 Stencils 03:28 Clipping 04:17 Multiple portals 05:03 Physics 05:26 Limitations