1080p Ulam Spiral of Composite Numbers

[Alcom1]

About a year ago, I was inspired by the Numberphile video on Prime Spirals to try the same concept with composite (not prime) numbers. I wrote a program in Processing that would draw and output an image of an Ulam Spiral (see video) where each pixel is a number and each number is brighter depending on how many divisors they have other than 1 or themselves. Prime numbers have a brightness of 0, square semi-prime numbers have a brightness of 1, non-square semi-prime numbers have a brightness of 2, twelve has a brightness of 4, and so on. I liked the result, and decided to render the spiral in 1080p for a desktop background.


The final result (click to enlarge):

Also I was using it as a desktop background at my new job a few days ago and my co-workers replaced it with an MLP background.

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[Katadeus]

Processing is my ham dude
That's pretty rad
Here's a bit of stuff I made recently
http://imgur.com/a/ZkxLi
http://imgur.com/a/2wnjZ
http://imgur.com/a/UJye9

[Alcom1]

Here's a bit of stuff I made recently

That's awesome! Do any of those use P3D?

[espio100]

Also I was using it as a desktop background at my new job a few days ago and my co-workers replaced it with an MLP background.

What the actual forget?

[plad101]

I might try to add this to my current background, looks really cool

[Alcom1]

What the actual forget?

I left my desk to use the bathroom, returned, and someone had changed my dekstop background to a My Little Pony themed wallpaper.

[gr8dayseth]

I left my desk to use the bathroom, returned, and someone had changed my dekstop background to a My Little Pony themed wallpaper.

you have the right to find whoever did that and murder them

but anyways this is cool

[Katadeus]

That's awesome! Do any of those use P3D?

Nope, all just 2D. To be honest, even after making all those, I don't know exactly how I did it.