* Math & art. Product Manager. Demoscener. * Created Quill, Shadertoy, Pixar's Wondermoss, Memix, ... * Videos: piped.kavin.rocks/Inigo_Quilez * Tutos: iquilezles.org
san francisco
Joined October 2011
- Tweets 3,227
- Following 40
- Followers 38,888
- Likes 3,008
Some generalizations of polar coordinates (kind of) so you can parametrize space around primitives beyond disks:
shadertoy.com/playlist/XclfR…
@iquilezles is there a way to get a tangent coordinate space from any 2D SDF in a generic way? For the circle we can get these as (angle, distance) but what about other shapes?
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Hi web developer friends. What's AWS's response to Google Analytics? I haven't been able to find it yet. I'm using my own currently, but I'd be happy to pay a bit and upgrade to something that doesn't look like AWStats and similar. Thanks!
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A catalog of different smoothstep functions, their inverses, and first and second derivatives.
Top row is polynomial smoothsteps, middle is rationals, bottom is piecewise polynomials and trigonometric.
Each one has a different strength. Article: iquilezles.org/articles/smoo…
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Because I don't watch films, when a Marvel movie trailer shows up in my feeds all that I see is some grown-ups in costumes surrounded by cartoon environments and effects. Max cringe.
I'm telling you these movies won't age any better than the old batman shows from the 80s did...
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About 7 years ago, one day, just like that, a Mandelbulb fractal grew on my desk!
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The teaser for piped.kavin.rocks/watch?v=BFld4EBO…
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Realtime animated version of @theAlbertChern's tweet, with source code: shadertoy.com/view/NsBBWW
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It is convenient to know a few small Pythagorean triples for when you need an arbitrary rotation matrix, so you can fill it up without resorting to sines and cosines.
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Sphere inversion -> rotate -> noise, part of my upcoming "Painting with Maths" video. It's almost ready, can't wait to put it out there!
Realtime version with source code: shadertoy.com/view/7ssBzX
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Folder: contains many text files, pictures, documents and ONE .wav file.
@Windows: Aha, a sound file! This must be a music album, so let me remove all Size, Date and Type info and add empty Album, Contributing Artists and Track Number columns for you. You are so very welcome!
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People will always find a metric that validates their belonging to a tribe. Just this week I've heard that all three Java, C++ and Python are all the most "popular" programing language. Based on the number of...? Questions on forums? Programmers? Programs in production? You pick!
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It was fun talking with Okkie and Axel about #demoscene, @Shadertoy, film making, VR, and other things during the @zineradioshow's episode 18.
Here anchor.fm/zinetheradioshow/e… or open.spotify.com/episode/1X2…
Episode 18 with guest @iquilezles and a discussion about themed music compos, stock assets and commercial engines is online!
#demoscene @scenesat
@sceneorg @Shadertoy open.spotify.com/episode/1X2…
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... and when I changed to a new phone and number, I did the right thing... and all of the vegetation of two films that were in production suddenly changed, creating some panic in a handful of teams for about half a day ^___^
Fun fact - vegetation on Brave was a procedural geometry generator that ran at render time. The seed for the generator was @iquilezles' phone number with the comment:
// Call me if you don't understand this
seed = 555-555-5555;
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Realtime version: shadertoy.com/view/7sGSRd
Raytraced, but not an implicit surface :(
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