Improving Detail in Shaded Relief

The standard “hillshade” tool included in most GIS software suites implements a simple model of lighting with set assumptions that make the fast and easy to use. This simplified can visually degrade steep terrains, producing over-dark areas removing important terrain detail. underlying can, however, be manipulated output displays without these drawbacks. mimics effect ambient light complicating by introducing additional sources. article will briefly describe underpinnings Lambertian shaders, then demonstrate how traditions built into tools removed give more flexibility control over results. Finally, shadows discussed as separate addition shaded relief.