Ich vermute mal mit detail map meint er ... eine detail map!
Hier die Beschreibung aus der update6.txt, die hat mir eigentlich alles gesagt.
quote:
Detail maps for terrain
If the camera is allowed to get too close to terrain, the surface
texture becomes a blurry mess due to the high magnification. For
adding little details, like bumps and cracks visible at close
distance, a detail bitmap can be added to a terrain entity. For
adding a detail bitmap, perform the following steps:
- Open the MED skin editor
- Create a second skin
- Select the second skin
- Import the bitmap that should become the detail map
- Uncheck "adapt skin points" when the requester pops up
- Select "Convert Skin -> Add Mipmaps"
- Save the terrain
The detail bitmap should be small (like 64x64), tiled, true colour
and medium bright. It must have a different size than the normal skin
for being recognized as detail map. An example (detail.pcx) is
included in the template folder. The predefined detail_size variable
gives the number of detail pixels per terrain surface pixel (default
4). Example:
detail_size = 10;
This way the terrain looks much better even when a lower resolution
surface image is used. Note that some old video cards (like Voodoo3
or ATI Rage) don't support detail maps. When detail_size is set at 0,
detail maps are switched off.
