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An outdoor ray tracing system for rendering realistic terrain

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Picogen is an outdoor Monte Carlo ray tracing system designed to render large-scale terrain with realistic day/night-illumination and detailed plant populations. It also is a heightmap-creation tool, in which heightmaps are programmed in a syntax that reminds of LISP.

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  • Whitted-Style Ray Tracer for quick previews
  • Rudimentary path tracer for high quality results
  • Partial implementation of Preetham's Sun-/Skylight Model
  • Procedural Heightmaps, though before rendering they are tesselated

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