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PetrFlajsingr / RayMarching

VUT FIT project for Computational geometry course. Ray marching CSG trees using compute shaders.

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constructive-solid-geometrycsgglslopenglraymarchingsdfsigned-distance-functionsspheretracing

RayMarching

GPU rendering of SDF CSG trees with shadows, reflections and refraction.

SDF & ray marching resource: https://www.iquilezles.org/www/articles/distfunctions/distfunctions.htm

Optimisations based on https://erleuchtet.org/~cupe/permanent/enhanced_sphere_tracing.pdf :

  • Over-relaxation sphere tracing
  • Screen-space aware intersection point selection

Custom optimisation of lower resolution marching & then precise marching and shading on full res (green pixels are not calculated on high res unnecessarily:

Menger fractal

Examples: Scene

Refraction

Shadows

Menger fractal

About

VUT FIT project for Computational geometry course. Ray marching CSG trees using compute shaders.

constructive-solid-geometrycsgglslopenglraymarchingsdfsigned-distance-functionsspheretracing

License:MIT License

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