Dissecting the 128-byte raycaster (finalpatch.blogspot.com)

143 points by finalpatch 12y ago ↗ HN

Come have a look if you are interested in understanding how it works.

Original post here https://news.ycombinator.com/item?id=7940212

4 comments

[ 3.4 ms ] story [ 26.2 ms ] thread

yzzxy 12y ago ↗

Nice! Reminds me of The Business Card Raytracer[0].

[0]http://www.cs.utah.edu/~aek/code/card.cpp

3rd3 12y ago ↗

And the dissection: http://fabiensanglard.net/rayTracing_back_of_business_card/

huseyinkilic 12y ago ↗

Also the 1bir (1 Block Interactive Raycaster), a raycaster for Commodore 64 in 254 bytes (source code included):

http://www.pouet.net/prod.php?which=61298

Disclaimer: I am the author of 1bir.

userbinator 12y ago ↗

Raymarching is one of those techniques that has extreme simplicity and yet can generate very complex scenes from an essentially mathematical description; I think it's one of the best examples of an elegant algorithm.

More info here:

http://iquilezles.org/www/material/nvscene2008/rwwtt.pdf

http://www.iquilezles.org/www/articles/distfunctions/distfun...