Golden Software - Offers Surfer and MapViewer software programs.

3D Graphical Map Viewer (g3DGVM) - A free 3D viewer for Digital Elevation Model (DEM ) and Digital Line Graphs (DLG ) maps. (free, with code) [linux, requires GTK+]

FAA Obstacle Evaluation Software - Analysis software for design of tall architectural structures compliant to aviation regulations.

Rapid Imaging Software: LandForm - A New Mexico corporation producing terrain modeling software such as LandForm and VisualFlight.

Optiroads - Software for engineering and building related to roads.

TopoWeb - Landscape Visualization software with DEM files.

Geomantics - Provide photorealistic landscape services and develop visualization software for same.

Digital Terrain Modeling and Mapping - Provides information about generating 3D digital terrain models and maps, free data and software. Several SDTS file conversion utilities available for download.

GeoVRML.org - Website of the official Web3D Consortium working group, with the goal of developing tools and recommended practice for the representation of geographical data using the Virtual Reality Modeling Language (VRML).

LandSerf - Software for visualisation and analysis of continuous terrain surfaces.

Terrain Visualization for KDE - A Linux program for displaying United States Geological Survey DEMs.

Kashmir 3D - Generate photo-realistic images and movies of landscapes using Digital Elevation Model files from the United States Geological Survey and the Swiss Federal Office of Topography. [Win 95/98/NT]

Interactive Visualization Systems - Create virtual 3D worlds in which the user is free to explore and examine numerical scalar data.

TopoVista - 3D viewer that allows user to interactively walk or fly on a surface defined by a DEM.

hftools Page - Landscape Utilities for Unix - Tools for creation, manipulation, and rendering of virtual landscapes.

Terraform - Open source interactive height field generation and manipulation program.

DEMViewer - A digital elevation model viewer for ArcInfo Grid ASCII export files. Can combine it with other data such as other DEMs and/or Jpeg/Gif images. (free, with code) [Java]

EarthVision by Dynamic Graphics Inc. - Software for 3D terrain model building and visualization. Example uses are accurate well positioning, reservoir characterization, and environmental analysis. [WinNT/2k,Unix,SGI]

EDGE Product Family - A set of visualization and analysis tools for creating synthetic environments - from outer space to sea level and below. By Autometric, a large company with fingers in every geospatial data related pie.

SiteBuilder 3D - An ArcView v3.x extension which promises a "highly realistic, fully interactive, realtime 3D environment". The Spatial and 3D Analyst extensions are recommended but not required. [Windows NT/2k]

MicroDEM - Display and merge DEMs, satellite imagery, scanned maps, vector data and GIS databases from a variety formats. Supports multiple projections, file conversion (read & write) and 3D views. [Win9x/Me/NT/2k]

OpenEV - An open source library and reference application for viewing and analysing raster and vector geospatial data. Handles raster and vector data, 2d and 3d display, and other image processing tools. (free, with code) [Win32, Unix, SGI]

TerrainBaseII - A version of MicroDEM specialized for miltary applications.

tsmApi - Tile Set Manager (TSM) Application Programming Interface (API) is an Open Source library of high level C functions for reading, writing, and processing the terrain data used by the TerraVision terrain visualization application. The library acts as an abstraction layer between the application program and the terrain data

Pavan - A tool kit for building landscape scenes for use in MapInfo GIS, POV-Ray, and Virtual Reality Markup Language (VRML).

Rez - A java tool for translating topological grids and generating multiresolution 3D terrains optimised for web browsing.

TerraVision by SRI - Navigate in real time across terrabyte-sized distributed datasets from multiple servers across the Web, 3-D VRML and GeoVRML overlays, different size, resolution, and coordinate system are supported. [SGI, Linux, Windows; client-server architecture]

TFMAKE - A console program to retrieve USGS DEMs from online servers, get the corresponding texture from the U.S. Bureau of Census server and adapt the two data sources such that they fit together perfectly as elevation.tga and texture.tga.

TruFlite's 3D World - 3D landscape rendering system to create animations and high resolution images of landscapes. ($300us) [Win3.x/95/NT]

Using the vBNS with Geographic Information Systems - A technology demo application to download large GIS data sets of West Virginia (USA) terrain over very high performance Backbone Network Service (vBNS) and display them on your terminal using Virtual Reality Modelling Language.

CommunityViz - Suite of three integrated ArcView extensions to create and manipulate virtual towns and explore different land use scenarios. Offers 3D exploration, impact analysis and policy forecasting for community land use planning.

ShapeViz - A simple program geared towards people who don't know about GIS to view multiple Shape files Can export to Virtual Reality Markup Language. [Win98/NT]

Virtual Frontier - Spatial Insights, Inc. - Combine terrain visualization and thematic mapping in a dynamic 3D environment, allowing you to navigate geospatial data in near-real or real time. [Win9x/NT]

Technical Division - ViewTec Ltd. - Desktop and web-based software for real-time interactive 3D terrain modelling, from broad country wide scales to focussed urban areas, virtual tourism and real estate. [Win98/Me/NT/2k]

DLGV32 - Software for viewing United States Geological Survey digital cartographic data in a variety of formats. (free, with code) [Win9x/NT/2k]

TerrainView - Interactive realtime 3D terrain viewer with the ability to overlay orthophotos, satellite images and vector data. [Win98/Me/NT/2k]

TerraTools - A tool set for constructing virtual worlds from standard cartographic data sources using Integrated Triangulated Irregular Network (ITIN) and intelligent feature generalization (maintains topology). [IRIX, NT/2k]

Satellite Tool Kit - Visualization Option (STK/VO) - A 3D visualization environment providing a view of mission and orbit geometries by displaying realistic 3D views of space, airborne and terrestrial assets, sensor projections, and orbit trajectories. [NT, Unix]

SINTEF Virtual Globe - A Java client-server application for displaying very large (global scale) terrain models. (free, with code) [unix, win32]

Carterra 3D - DEMs of the continental United States bundled with a proprietary interactive 3D viewer called TerraExplorer and orthorectified 5-meter imagery. [Win9x, *not* NT]

Ecomodeler - Converts geographic and forestry attribute information directly into World Construction Set compatible data. [Win9x/NT/2k, WCSv5-SE]

Digital Earth - An initiative to create virtual representation of our planet that enables a person to explore and interact with the vast amounts of natural and cultural information gathered about the Earth. Sponsored by United States federal government.

Landscape Explorer 2000 - Interactive 3D viewer with a focus on accurate rendition rather than photorealism. Free for non-commercial and educational use - requires registration for commercial users.

3D Analyst - An ArcView extension to enable generic surface modelling, including support for triangulated irregular networks (TINs) and simple three-dimensional vector geometry, as well as interactive perspective viewing. [ArcView 3.x, Unix or NT]

Genesis II - Photorealistic landscape rendering application using ArcView or MapInfo data for precise placement of trees, roads, etc. [Windows]

VirtualGIS, by IMAGINE - Drape aerial photography, satellite imagery and airborne scanner data onto a DEM; also annotation, vector GIS layers, symbols, billboards, 3D texture-mapped objects, water surfaces to create realistic views. (commercial) [NT, Unix]

Viewscape3D - Photorealistic landscape renderings using GIS data specialising in forestry applications. Also sells software for same.

3D visualization software for GIS data - Fast 3D GIS data viewer for windows with real time animation, zoom, Fly-by