Dweets awesomed by u/NiekvD

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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veubeke

function u(t) {

x.fillRect(960,540,C(t)*300,S(t)*300)

Apr 21 2020 4:40 AM UTC

}// 37/140

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How are you drawing circles?

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮁛𩰽𙱦𪑬𫁒𩑣𭀧𧐨𜀬𜀬𨰮𭱩𩁴𪀽𚁷🐹𝠰𚐪𜠬𪐽𭰪𜰩𞱩𛐭𞱸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𛠱𝐪𪑽𛀹𞐥𛀶𜀥𨀬𮁛𩱝𚁷𚰨𤰨𬐽𪐯𜰸𜐫𠰨𭀯𜠩𚠳𚐪𦠩𛰨𦠽𠰨𬐩𚡚𛐷𚐪𭰬𝐴𜀫𤰨𬀩𚡶𛱚𚡷𛁳🐱𚰲𜀰𛱚𛱚𛁳𚐩𦠽𠰨𬀽𪐯𝠳𛠶𝰫𭀩𚠨𭠽𪐥𞀯𞀫𜐩𚰳`.replace(/u../g,'')))

Jan 22 2019 12:24 AM UTC

}// 140/140

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for(x[g='fillRect'](0,0,c.width=(w=960)*2,i=w*3);i--;x.fillStyle=hsl(${.15*i},99%,60%,x[g](w+(S(q=i/381+C(t/2)*3)*Z)/(Z=C(q)*Z-7)*w,540+S(p)*v/Z*w,s=1+200/Z/Z,s))Z=C(p=i/63.67+t)*(v=i%8/8+1)+3

u/cantelope

testing out the new compressor :D
u/metamero

cool!!
u/katkip

I like that there is a cat and a mouse emoji in your code
u/iverjo

#colorful

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magna

function u(t) {

T.valueOf=Math.random
x.setTransform(T,T,T,T,T,T)
x.fillStyle=R(0,0,0,T)
x.fillRect(999,999,99,99)

Jun 6 2018 3:45 PM UTC

}// 98/140

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Proof-of-concept of using valueOf to prevent function call parenthesis (()) to save space when a function is used at least 5 times.

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nystrand

function u(t) {

for(i=w=3e3,a=b=g=333*T(t%9/7);j=(i^a*a)%4,i--;x.fillRect(a+=g+C(j*5+t)*g-a/2-w+g,b+=g+S(j*9+t)*g-b/2-w,s,s),w=2)x.fillStyle=R(s=w*9,w,s,.1)

Dec 28 2017 2:50 PM UTC

}// 140/140

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Show more comments…
u/sigveseb

This one is fantastic! Good job indeed
u/Bendoman

Brilliant!
u/Xen

very very impressive!
u/magna

HOW ON EARTH
u/nic

MIND:=BLOWN
u/lowpoly

Gawd, I learnt a lot today
u/Citiral

Since when does Javascript support black magic?
u/sigveseb

Needs more upvotes!
u/doof

this was such a delight to unpack :)
u/Lazy1337

wow
u/aleamb

amazing
u/iverjo

I'm awestruck
u/xem

unbelievable
u/trapkid

lol
u/aleamb

epic! one of the greatest dwitter
u/ThreeNPlusOne

sierpinski triangle :D
u/xem

It'd be nice to have a blog post explaining it :) (please?)
u/trupples

I didn't look much into it but it might have to do with a thing I read about once where if you have a point that "walks" half the distance towards a random corner of a triangle you'll end up drawing a sierpinski triangle sorta like you can see in https://www.dwitter.net/d/5097
u/trupples

And according to http://distrustsimplicity.net/articles/sierp… if you were to use 4 points instead of 3 you'd get a tetrahedron like in this dweet. Fascinating stuff
u/stiaje

#witchcraft
u/lionleaf

#top_of_the_year
u/Scaledish

wow
u/Tekmap

👏👏👏👏👏
u/vain

that's not from this world! incredible code / 3d fx and blur
u/rodrigo.siqueira

3D flying #sierpinski pyramid #fractal

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cantelope

function u(t) {

for(W=(c.width=1e3)/2,i=16;i--;x.stroke())for(j=17;j--;x.lineTo(W+S(p)*S(q)/Z*W,275+C(q)/Z*W))Z=C(p=.785*(i>8?j:i)+t)*S(q=.39*(i>8?i-8:j))-3

Aug 11 2017 6:18 PM UTC

}// 140/140

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Made a tutorial for this: https://cantelope.org/sphereGolfed

Show more comments…
u/kimber

Your website is an inspiration. Thanks.
u/cantelope

<3 @kimber
u/FireFly

Nice wireframe sphere! :D
u/alien

omg you did it !!!!!
u/cantelope

To give credit where it is due, qfox helped me shave off the last ~10 bytes.
u/donbright

:O:O:O
u/iverjo

That's really impressive. Kudos!
u/n0va

Awesome!
u/joeytwiddle

#sphere #wireframe

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cantelope

remix of d/2845 by u/cantelope

function u(t) {

A=960,B=540,x.fillRect(0,0,D=2e3,D)
for(i=D;i--;)x.clearRect(A+1/(Z=2.5+C(p=i*C(t/2)/40)*S(q=i/628))*(X=S(p)*S(q))*A,B+C(q)/Z*A,s=69/Z/Z,s)

Jul 10 2017 4:43 AM UTC

}// 140/140

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Show more comments…
u/lionleaf

That's really neat!
u/Polyducks

This is amazing! What's the concept behind it? How are you getting the sphere?
u/cantelope

@Polyducks, it's a golfed version of the equation of a sphere [x=sin(p1)*sin(p2);z=cos(p2);z=cos(p1)*sin(p2);] combined with a tiny 3D projector, X=cx+1/z*x*cx; Y=cy+y/z*cx, where cx/cy is center screen, and x/y/z are the 3D coordinates. Hope that makes sense! :)
u/cantelope

*equation of a sphere: [x=sin(p1)*sin(p2);y=cos(p2);z=cos(p1)*sin(p2);]
u/alien

thanks for that, is projector a mathematical construct? does it have other names?
u/cantelope

@alien it's my own invention, the product of years of research into geometry. I wrote a tutorial with a (very ungolfed) version here https://cantelope.org/3D
u/alien

*__*
u/alien

All the lienar algebra and vectorial calculus in my bachelor finnally comes to life in my head... this is soooo cool @cantelope...
u/donbright

bravo... bravo

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cantelope

remix of d/2554 by u/cantelope

function u(t) {

w=960,v=340,x.fillRect(0,0,w*2,v*4)
for(i=99;i--;)for(j=59;j--;)X=i/2-25-C(t),Y=2+S(i/5)*S(j/5+t*3),x.clearRect(w+1/j*X*w,v+Y/j*w,s=99/j,s)

Apr 22 2017 6:43 PM UTC

}// 139/140

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cantelope

function u(t) {

cx=(c.width|=0)/2,cy=340
for(i=99;i--;)for(j=59;j--;)X=i/2-25-C(t)*2,Y=3+S(i/5)*S(j/5+t*3),x.fillRect(cx+1/j*X*cx,cy+Y/j*cx,s=99/j,s)

Apr 22 2017 6:28 PM UTC

}// 133/140

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u/innovati

🌊🏄
u/joeytwiddle

Beautiful
u/cantelope

innovati, i can't tell what those emojis are. lel.
u/Renaud___

great

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