Tooling

Tools/Orogen/llms.txt

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+# World Orogen
+
+> Procedural planet generator — free, browser-based, no signup required.
+
+World Orogen generates realistic procedural planets shaped by tectonic plate simulation, erosion, and climate modeling. It runs entirely in the browser using Three.js and requires no installation, account, or payment.
+
+## What it does
+
+- Generates unique terrestrial planets with realistic continents, mountains, ocean trenches, and volcanic islands
+- Simulates tectonic plates with convergent, divergent, and transform boundaries
+- Applies glacial, hydraulic, and thermal erosion to carve fjords, river valleys, and talus slopes
+- Simulates seasonal climate: wind patterns, ocean currents, precipitation, and Köppen classification
+- Creates hotspot volcanism with drift-trail island chains (like Hawaii)
+- Allows interactive editing — select multiple tectonic plates for batch reshaping with visual preview before rebuild
+- Import your own equirectangular B&W heightmaps (Earth, Mars, hand-drawn) onto a 3D globe with automatic climate simulation
+- Import a painted map whose colours are uplift rates and erodibilities (with a legend JSON) and solve it with stream-power erosion into terrain with real rivers, divides and drainage basins; export class, uplift, erodibility, drainage, slope, basin and overlay maps
+- Show each class's typical and divide hillslope angle before solving, so a legend's uplift rates can be read as terrain rather than as numbers
+- Annotate a painted world with an overlay layer of forests, settlements, roads and coastlines, drawn as a texture over the globe and the map, where one mark property pins or roughens the shore
+- Export a window of the planet as Unreal Engine landscape tiles — per-tile 16-bit heights at 255*N+1 vertices, an 8-bit weightmap per paint layer, and a manifest that records the scale, the window in degrees and the projection, so the game engine side never has to guess metres-per-pixel
+
+## Who it's for
+
+- Worldbuilders creating fantasy or sci-fi settings
+- Game developers who need heightmaps for Unity, Unreal, or other engines
+- Tabletop RPG players building campaign worlds (D&D, Pathfinder, etc.)
+- Fantasy/sci-fi authors designing believable planets
+- Artists and hobbyists who enjoy procedural generation
+- Educators teaching plate tectonics and planetary science
+
+## Key capabilities
+
+- Multiple views: terrain, satellite biome, Köppen climate, heightmap
+- 26 detailed inspection layers (geology, atmosphere, ocean, climate)
+- Export high-resolution equirectangular maps up to 65,536px wide
+- Shareable planet codes — copy a compact code to reproduce any planet exactly
+- Works on desktop and mobile browsers
+- No build step, no dependencies to install — pure ES modules
+
+## URL
+
+https://orogen.studio/
+
+## Technical details
+
+- Built with Three.js (WebGL), vanilla JavaScript ES modules
+- Fibonacci sphere meshing with Voronoi tessellation
+- Braun-Willett stream power erosion, Barnes et al. pit-filling algorithm
+- Dual-model precipitation (advection simulation + zonal heuristic)
+- Fully client-side — no server, no data collection