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Crystal Space 3D engine

Portals, Sectors, and Visibility
This talk will focus on the visibility problem.
  • First the visibility problem is explained: what is visibility? what are the problems?
  • Then the talk will focus on how Crystal Space solves the visibility problem. How are portals used for this? What alternatives does Crystal Space offer? What about fast 3D cards like the GeForce that support hardware accelerated transforms?
  • Finally the talk will focus a bit about the future and what other options there are to investigate for visibility.


Crystal Space currently runs on GNU/Linux, general Unix, Windows, Windows NT, OS/2, BeOS, NextStep, OpenStep, MacOS/X Server, DOS, and Macintosh. It can optionally use OpenGL (Windows, GNU/Linux, Mac, OS/2, BeOS), Direct3D (Windows), Glide (GNU/Linux), GGI (GNU/Linux), Allegro (GNU/Linux, DOS), X11 (Unix or GNU/Linux) and SVGALIB (GNU/Linux). It can also optionally use assembler routines (GCC/DJGPP, Visual C++, NASM and Intel only currently) and MMX

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