Hello, I like to know something about indoors. I''ve looked at quake3 bsp mapfile, which is for indoors, right?and i would like to use something similair to this, or actualy the same! Is quake3 bsp mapfile copyrighted? if yes, how should i create indoor levels without them. Should i create my own fileformat and/or convert the .bsp to it. TIA michel

I don''t have any experience with the quake 3 map format, though personally I''d suggest making your own.

For one thing, any copyright laws you may be infringing on are no longer valid since it''s your own format.

And more importantly, you can specify whichever features you want in your own format. For instance, you might want to use a feature quake 3 doesn''t in your game, or might want to go for something simpler and wouldn''t need all the features quake 3 has. Or more importantly, the features the format allows you to use.

Unless, of course, you plan on making a direct clone of Quake 3

Well before getting heady into the BSP stuff learn something about PORTALS. Over at FlipCode there was a series on building a portal engine.

Quake 3 also uses portals, but they use something called a PVS (Potentially Visible Set). Basically the map compiler precalculates all the portals and flags the information into each sector.

They could just as well use an Octree or whatever. The BSP is really not very important to how Quake visibility algorithms work.