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Generating portals, PVS

4: Adsense

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#1 polyfrag   Members   

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Posted 11 February 2014 - 06:43 PM

I'm looking over the QBSP source code and I can't understand how the nodes of the BSP tree are divided into portals and how potential visibility is determined between portals

#2 deftware   Prime Members   

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Posted 12 February 2014 - 02:24 AM

You may have already seen these:

 

Michael Abrash explaining how visibility is determined:

 

"Inside Quake: Visible-Surface Determination"

http://www.bluesnews.com/abrash/chap64.shtml






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