CompuServe Messages

Eric, You might also consider 3dSurf (Ipas) and QuickSurf (AutoCAD) by Schreiber Instruments. My choice is Quicksurf, which is a full featured terrain modelling software. The nice feature for 3DS is the fact that the surface faces can be isolated for material application in 3DS. You can also use the large bitmap approach for mapping the surface as well (see the VAIL.3DS model on the R3 CD). Quicksurf can also read DEM files directly from USGS. This will give you the capability to import high resolution models and refine the data to the level of detail that is necessary for your project. Hope this helps, CT.