Level-of-Detail Management for Real-Time Rendering of Phototextured Terrain
Peter Lindström, David Koller, Larry F. Hodges, William Ribarsky, Nickolas L. Faust, Gregory A. Turner · SMARTech Repository (Georgia Institute of Technology) · 1995
We present four techniques for real-time level-of-detail reduction of digital terrain data without loss of visual image quality or detail. Techniques for reducing polygon count based on distance and terrain roughness provided two- orders-of-magnitude reduction in the number of polygons rendered for our sample data: an eight kilometer by eight kilometer data set with four meter resolution. Techniques for reducing texture data based on distance and orientation of polygons resulted in a one-order-of-magnitude reduction in the number of bytes of texture memory for the same data set.