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Procedural texturing: Difference between revisions
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→Slope line noise
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For slope line noise, the terrain is segmented in patches, and based on the normal of the terrain, a line along the direction of steepest descent is drawn on the patch, with precise line position and thickness modulated by random numbers. This type of noise mixed into Perlin noise can give a good impression of snow distributions on steep slope or erosion patterns on terrain. | For slope line noise, the terrain is segmented in patches, and based on the normal of the terrain, a line along the direction of steepest descent is drawn on the patch, with precise line position and thickness modulated by random numbers. This type of noise mixed into Perlin noise can give a good impression of snow distributions on steep slope or erosion patterns on terrain. | ||
=== Examples === | |||
To the left is an example for domain noise scaling the size of trees in patches of few hundred meters size, thus giving the impression of the different age of forest patches in a managed forest. On the right is an example of slopeline noise, emphasizing the vertical structure of the granite walls in Yosemite National Park. | |||
[[File:Domains_forest.jpg|400px|Domain noise for forest]] [[File:Southwest08.jpg|375px|Slope line noise for Yosemite granite]] | |||
=== Terrain probing functions === | === Terrain probing functions === | ||