etale-cohomology / evert-cuda

A CUDA port of Thurston's evert that path traces a sphere being turned inside out
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c cuda eversion geometry mathematics sphere thurson topolgy

This is a CUDA port of evert, a C++ program that turns the sphere inside out. Written by Nathaniel Thurston and based on ideas of William Thurston, evert was used for the movie Outside In.

This fork comes with a Youtube video.

It tries to "simplify" the original implementation by keeping only first-order differential data.

evert-cuda.cu generates the geometry of the eversion (as an array of triangles) and renders it to a PPM image (via path tracing).

evert-cli.cu generates the geometry of the eversion (as an array of triangles) and prints it out to the console.

You can find out more about evert at the Geometry Center's website.

evert-cuda

evert-cuda

evert-cli