It's pretty trivial to do with a vertex-shader (or geometry-shader on newer OpenGLs). All calculations are handed off to the GPU, and are done on-the-fly at render-time, which means you can stick all the optional-lines in display-lists or VBOs without having to worry about which ones will eventually be visible.
Drawing conditional lines
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Drawing conditional lines - by Santeri Piippo - 2013-05-08, 19:24
Re: Drawing conditional lines - by Travis Cobbs - 2013-05-08, 20:46
Re: Drawing conditional lines - by Tim Gould - 2013-05-08, 21:20
Re: Drawing conditional lines - by Travis Cobbs - 2013-05-08, 22:32
Re: Drawing conditional lines - by Santeri Piippo - 2013-05-08, 22:41
Re: Drawing conditional lines - by Travis Cobbs - 2013-05-08, 23:10
Re: Drawing conditional lines - by Santeri Piippo - 2013-05-08, 22:03
Re: Drawing conditional lines - by Alex Taylor - 2013-05-10, 16:00
Re: Drawing conditional lines - by Roland Melkert - 2013-05-10, 19:13
Re: Drawing conditional lines - by Santeri Piippo - 2013-05-10, 19:27
Re: Drawing conditional lines - by Roland Melkert - 2013-05-10, 20:50
Re: Drawing conditional lines - by Steffen - 2014-11-28, 1:33
Re: let's make this thread sticky - by Tim Gould - 2014-11-28, 4:08
Re: Drawing conditional lines - by Nils Schmidt - 2014-12-26, 13:07
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