Hallo! Where are the curved surveses defined in the map-format? I cant find it! thx

In the structure that holds the face information (ie. the "face lump"), the third element is an integer that holds values between 1 and 4 inclusive. These values identify the type of the face, 2 being a Bezier patch (curve).

All the info you need is in the map file specification. This is an unofficial document, but it may well be accurate: http://graphics.stanford.edu/~kekoa/q3/

Last time I checked that site, the info had quite a few problems. Its best to go directly to the header files that id Software used, and work from those. They can be downloaded with the GTKRadiant map editor source.

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"When I have a problem on an Nvidia, I assume that it is my fault. With anyone else''s drivers, I assume it is their fault" - John Carmack