Zen photon garden • Hacker News Board

Re: Zen photon garden

#21

Post by mappum » Sat, Mar 29, 2014, 5:48 PM UTC

Sierpinksi Triangle: http://zenphoton.com/#AAQAAkACAAEgXgB8AaYA2wJdANlWUlUCXgDZAg...

This was created by someone the last time this was on HN: https://news.ycombinator.com/item?id=5983421

Re: Zen photon garden

#22

Post by mappum » Sat, Mar 29, 2014, 5:52 PM UTC

I like how having a lot of random stuff ends up making some natural-looking textures: http://zenphoton.com/#AAQAAkACAAEgdwAeAAsAKgArABMA/wAASgH9AF...

Re: Zen photon garden

#23

Post by Goranek » Sat, Mar 29, 2014, 5:54 PM UTC

mappum wrote: post #21

Sierpinksi Triangle: http://zenphoton.com/#AAQAAkACAAEgXgB8AaYA2wJdANlWUlUCXgDZAg... This was created by someone the last time this was on HN: https://news.ycombinator.com/item?id=5983421

absolutely stunning

Re: Zen photon garden

#24

Post by kratiki » Sat, Mar 29, 2014, 5:59 PM UTC

The model doesn't seem precise - there is no light diffraction. See http://en.wikipedia.org/wiki/Kirchhoff%27s_diffraction_formu...

Re: Zen photon garden

#25

Post by jmah » Sat, Mar 29, 2014, 6:43 PM UTC

My first reaction was to try the double-slit experiment, but unfortunately there was no interference pattern. Beautiful none the less. (Ok, a little less.)

Re: Zen photon garden

#26

Post by cmelbye » Sat, Mar 29, 2014, 7:28 PM UTC

dalek2point3 wrote: post #5

I dont understand what's going on ...

It's an interactive raytracing demonstration. Draw on it, and watch it simulate light diffusion, reflection, and transmission. It's pretty straightforward, actually.

Re: Zen photon garden

#27

Post by rootlocus » Sat, Mar 29, 2014, 8:10 PM UTC

jmah wrote: post #25

My first reaction was to try the double-slit experiment, but unfortunately there was no interference pattern. Beautiful none the less. (Ok, a little less.)

That's not surprising. The double-slit experiment was used to prove the wave behavior of the light. Ray tracing simulates the photon/ray behavior.

Re: Zen photon garden

#28

Post by kevingadd » Sat, Mar 29, 2014, 8:13 PM UTC

dave809 wrote: post #13

It seems like this effect could be got much more efficiently using block lighting. you could get the gradients by storing the light's strength at each vertex. This way you would be tracing only two rays per line

That doesn't provide a way to simulate reflectivity and transparency.

Re: Zen photon garden

#29

Post by chronolitus » Sun, Mar 30, 2014, 4:18 PM UTC

Goranek wrote: post #23

mappum wrote: post #21

Sierpinksi Triangle: http://zenphoton.com/#AAQAAkACAAEgXgB8AaYA2wJdANlWUlUCXgDZAg... This was created by someone the last time this was on HN: https://news.ycombinator.com/item?id=5983421

absolutely stunning

With a bit of imagination, you can create scenes that look like they belong in a movie. This thing is wonderful

http://zenphoton.com/#AAQAAkACAAEgcAAOAdEA6wHRAVVjUiUB0QDsAi...