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Anton980
11-11-2005, 05:30 PM
Hi everyone! Sorry if this is posted in the wrong section, if mods would like to move it, please do.

I've been tasked with a project - a driving simulation and I'm responsible for majority of 3D models, textures, animations, etc. We are using 3D studio for modeling along with VirTools engine. My questios is: has anyone done any large (20x30 miles) outdoor terrains and if so, could you give me your approach to texturing it? I'm new to game stuff so I'm sure my approach is not the best one.

At the moment I have the roads cut in the terrain, I assigned a unique material ID to each type of road (asphalt, dirt, etc) as well as separate mat IDs for various terrain types - farm fields, grass, dirt, etc. Because of this I dont have any "blending" between textures unless I create a blended texture.

It would be nice if someone could shed some light as to how people go about these things and achieve such nice results (Battlefield 2, for example). Thanks very much in advance!

Anton
EricChadwick
11-11-2005, 11:33 PM
VirTools should have some examples of texture blending.

Might help to read this thread. I know it's long, but there are some good points in there about modeling for games.
http://forums.cgsociety.org/showthread.php?t=112189
joacim2
11-13-2005, 08:46 PM
The levels in Battlefield2 are textured with a hires Colormap (~4096x4096). On top of that there are three ~512x512 8-bit "lowdetailTextures" which overlays the Colormap, each of these 3 textures are projected and tiles from X,Y and Z respectively in order to map well in slopes and to give overall detail to the landscape from a distance.
The last layer of textures are the "hidetailTextures", 4-6 layers of ~512x512 detailTextures which also blends with the underlaying ground texture and gives the higdetail look when you are close up.
All of these layers are masked/blended with 8bit textures.

The roads are made with a spline system that "projects" a road color+alpha texture upon the landscape mesh.
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