How do I draw a pair of buttocks? (2014)

[metayrnc]

For anyone interested in drawing/sculpting with math, I would highly recommend this channel. There are some amazing things.

https://youtube.com/@InigoQuilez

[jstrieb]

I second this recommendation, Inigo Quilez is amazing!

If you're interested in learning the fundamentals of some of the math he uses, I can highly recommend the CMU computer graphics course. It's free on YouTube.

https://youtube.com/playlist?list=PL9_jI1bdZmz2emSh0UQ5iOdT2...

The professor, Keenan Crane, puts out a ton of super interesting, high-quality research as well. His website is awesome.

https://www.cs.cmu.edu/~kmcrane/

[joenot443]

IQ is the man! He’s the dev behind ShaderToy. He’s seen as somewhat of a Gandalf figure in the amateur shader dev community; some of what he produces in GLSL is light years beyond what most devs can conceptualize in a shader.

[junon]

He's pretty much the GOAT of SDF art, and as such he created https://shadertoy.com if you're interested in that kind of stuff.

[pdpi]

Was about to link the exact same thing. For context, Inigo is one of the authors of Shadertoy.

[beiller]

https://youtube.com/@TheArtofCodeIsCool has been my favourite so far, and he focuses on writing shaders. This seems like the next logical step thank you for sharing!

[sakex]

   ...although I have to say that it is a little bit embarrassing that my "reputation" up to now is mainly from this thread. – 
   mikuszefski
    Nov 25, 2014 at 18:19

[aidenn0]

I still can't decide if this example shows how amazing Mathematica is or something else:

    pelvisLoc = AnatomyData[Entity["AnatomicalStructure", "Pelvis"], "RegionBounds"]; 
    Show[
       Entity["AnatomicalStructure", "Skin"]["Graphics3D"], 
       PlotRange -> pelvisLoc, 
       PlotRangePadding -> {33, 33, 19},
       ViewPoint -> {0.961, 1.62, 0.203}, 
       ViewVertical -> {0.109, 0.284, 1.202}
    ]

It certainly shows how rich of a data set mathematica has. This[1] was another such example.

1: https://codegolf.stackexchange.com/questions/71631/upgoat-or...

[MikeDelta]

Funny how it triggers all sorts of puns in the replies: "This might get me suspended from the site butt I cannot resist."

[layer8]

The Poasson distribution is what got me.

In German, this is actually a double pun, because Po = butt.

[qwertox]

As long as it stays an exception to the rule. I would not want to see HN turn into Reddit.

[kcplate]

That comment was brilliantly constructed.

[synu]

Wow, great detailing on the cleftal horizon. It's interesting to see this expressed mathematically in this way.

[frozenlettuce]

Could you, Sir, write a mathematical formula pointing where the defendant kissed you?

[benj111]

> cleftal horizon

I was going to complement you on making up a term, but I googled and it is unfair a thing.

[plebianRube]

What better answer than drawing butts of course, to all of those students who are wondering where they would ever use sin/cos/tan in a real world application.

[bentobean]

What a great way to draw in students and encourage them to engage with the material. “25 extra credit points to the first student who submits an algorithm for drawing a butt.”

[snorkel]

This is the 21st-century version of writing 8008135 on a digital led calculator

[thomassmith65]

SEIBOOB?

[padjo]

“Parametric Buttocks Manipulator” is a post title for the ages.

[snorkel]

… and the “improve butt” macro.

[buttocks]

I feel that I should be expected to have some commentary on this post, but I’m just going to quietly admire it instead.

[_Microft]

Related: "How to fit an Elephant" by John D. Cook (2011), https://www.johndcook.com/blog/2011/06/21/how-to-fit-an-elep...

[bitwize]

Takes me back to the days of putting things like "function whose graph looks like Sonic the Hedgehog" into Wolfram Alpha.

[no_wizard]

Anyone know how of a good detailed book / guide / walkthrough on SVG path math? That has alluded me for a long time

[mometsi]

Pomax's primer on splines is excellent, though it's not specific to SVG

[cunningfatalist]

This is way more amusing than it should be.

[Nihilartikel]

This clearly predated the Internet Butts as a Service paradigm shift that https://www.butts.life brought about.

[rossdavidh]

I am absolutely not clicking on that link.

[Sunspark]

Millions of years of evolution has resulted in the invention of machine-learning which can be used to come up with the optimal formula to solve this conundrum.

[IIAOPSW]

In latex its just $\omega$

[ykonstant]

He has a wife, you know.

[sumanthvepa]

That was hilarious

[deepzn]

Matlab was honestly my foray into more advanced programming, coming into it with engineering. It was refreshing and so cool to see my programs visually. I do miss it.

[galoisscobi]

Matlab fun fact: It was voted as the most dreaded language in the stackoverflow 2022 survey.

[virgulino]

"It's a new kind of buttocks, you know." – kirma

[eCa]

Cl***ic.

[wffurr]

Clbuttic

[MerelyMortal]

Clbottomic