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Speaking of crazy ascii company logo animations, I never got a chance to golf these down, but I made some with color and signed distance field ray marching: ht

by a1k0n 11y ago

Speaking of crazy ascii company logo animations, I never got a chance to golf these down, but I made some with color and signed distance field ray marching: https://github.com/a1k0n/asciitracing https://github.com/a1k0n/asciitracing

userbinator 11y ago
I think raymarching is an extremely elegant way to make complex scenes fit into a tiny amount of space. These are my favourite articles on raymarching because it shows just how compact they can be - a single mathematical equation: http://iquilezles.org/www/articles/distfunctions/distfunctions.htm http://iquilezles.org/www/articles/distfunctions/distfunctio... http://iquilezles.org/www/articles/raymarchingdf/raymarchingdf.htm http://iquilezles.org/www/articles/raymarchingdf/raymarching... Edit: The description for the "bridge" scene is interesting: "This is a sketch really, but it never got completed, due to the lack of artistic appealing of the image." I don't know if it's his extreme humility, but I think it wouldn't be overexaggerating if I said it's one of the best scenes on that page.
- anon4 11y ago
  One more crazy thing you can do with raymarching - smoothly twine any shape into any other shape. Take any two signed distance fields, say they're defined by the functions dist0(p) and dist1(p). Then you can do dist(p, t) = (1-t)*dist0(p) + t*dist1(p) T doesn't have to be time-based, it can be space-based, so you have a shape that's a cylinder on the bottom and a large sphere on top and here's a mushroom https://www.shadertoy.com/view/lsSXWc https://www.shadertoy.com/view/lsSXWc Edit: I have a very strong feeling that in most cases the resulting function isn't a "proper" distance field, but you can still raymarch through it normally.
bhickey 11y ago
Andy, you're very much to ascii rendering what Inigo is to the demo scene. I hope Milwaukee has been treating you well.
agumonkey 11y ago
Always enjoyed your previous projects. This one doesn't disappoint. Do you live in a tty ?

by a1k0n 11y ago

userbinator 11y ago

I think raymarching is an extremely elegant way to make complex scenes fit into a tiny amount of space. These are my favourite articles on raymarching because it shows just how compact they can be - a single mathematical equation: http://iquilezles.org/www/articles/distfunctions/distfunctions.htm http://iquilezles.org/www/articles/distfunctions/distfunctio... http://iquilezles.org/www/articles/raymarchingdf/raymarchingdf.htm http://iquilezles.org/www/articles/raymarchingdf/raymarching... Edit: The description for the "bridge" scene is interesting: "This is a sketch really, but it never got completed, due to the lack of artistic appealing of the image." I don't know if it's his extreme humility, but I think it wouldn't be overexaggerating if I said it's one of the best scenes on that page.

anon4 11y ago
One more crazy thing you can do with raymarching - smoothly twine any shape into any other shape. Take any two signed distance fields, say they're defined by the functions dist0(p) and dist1(p). Then you can do dist(p, t) = (1-t)*dist0(p) + t*dist1(p) T doesn't have to be time-based, it can be space-based, so you have a shape that's a cylinder on the bottom and a large sphere on top and here's a mushroom https://www.shadertoy.com/view/lsSXWc https://www.shadertoy.com/view/lsSXWc Edit: I have a very strong feeling that in most cases the resulting function isn't a "proper" distance field, but you can still raymarch through it normally.

bhickey 11y ago

Andy, you're very much to ascii rendering what Inigo is to the demo scene. I hope Milwaukee has been treating you well.

agumonkey 11y ago

Always enjoyed your previous projects. This one doesn't disappoint. Do you live in a tty ?