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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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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mistrfu

function u(t) {

c.width|=f=(f,y,x)=>f+f*y(x)
for(i=~~((5-3*C(t/3))*8e2);i--;)x.lineTo(f(960,C,i+t/125),f(540,S,T(C(t/9e3))*i))
x.stroke()

Sep 26 2024 7:00 PM UTC

}// 122/140

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b4d.r00m

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𭰽𪐽𨰮𭱩𩁴𪁼👨🐵𝀰𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𪐥𜠪𞐰𜀫𪀫𤰨𬐩𚡬𛰨𦠽𠰨𬀩𚡤𚰲𚐪𪀭𚁳👬𚠹𞐯𦠩𛰲𛁨𚱙𛱚𚡨𛑳𛰲𛁳𛁳𚐩𦐽𤰨𬀽𚁍👍𨑴𪀩𛡡𭁡𫠲𚁙👃𚁱🐲𝐯𭰪𪐫𭀪𞐩𚠨𫀽𪐯𭰩𛁚🐮𝐭𫀩𚱴𚐪𚁤👍𛡨𮑰𫱴𚁙𛁚𚐩𛁸𛡦𪑬𫁓𭁹𫁥🐧𘰸𜁦𜠧`.replace(/u../g,'')))

Sep 25 2024 9:43 PM UTC

}// 140/140

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dual spirals

u/magna

Could we parallax this?
u/cantelope

um. yes. you mean add a parallax background?
u/magna

I mean stereoscopy: Making these left eye + right eye views instead of clones.
u/cantelope

ah. i have still to learn that magic :D
u/danny@hille.dk

As with many things in life, the theory is quite simple: you simply take two virtual cameras and place them approximately 62 mm apart, pointing them towards the same point (your object), and that should create a rather convincing 3D effect.

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rodrigo.siqueira

remix of d/32507 by u/rodrigo.siqueira

function u(t) {

for(i=(d=w=c.width|=0)*9;i--;d+=t)x.fillStyle=R(r=T(i)*i,r>0?g=T(i*i)*i:0,r<0&&g<0?T(i*i*i)*i:0),x.fillRect(d**2.5%w,i/9,z=T(i/t),T(i))

Sep 24 2024 11:13 PM UTC

}// 135/140

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Fast Mondrian patterns

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rodrigo.siqueira

remix of d/32493 by u/derp

function u(t) {

for(x.fillRect(0,0,i=4e4,i);i--;)x.clearRect(T(T(i*i)**9*t)*296*S(i)+S(i/4e3+t*2)*T(t*2+S(t*2)*8)*3+960,i/37,w=C(i)*3,w)

Sep 24 2024 11:54 AM UTC

}// 120/140

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Pulsating noise #noise

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rodrigo.siqueira

remix of d/31920 by u/rodrigo.siqueira

function u(t) {

for(a=b=t,i=2e4;i--;b+=C(a*3)/4-b/6,a+=r/4+b*S(a*2)/3-a/6)i&2?r=i/b&1:c.style='filter:invert()sepia(',x.fillRect(b*2e3+400,a*3e3-800,.1,t<6)

Sep 23 2024 6:41 PM UTC

}// 140/140

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Charcoal Ammonite #spiral #ammonite

u/SockTaters

brilliant #fossil

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rodrigo.siqueira

function u(t) {

for(i=8e3;i--;)x.fillRect(940+C(a=i/2|t*60)*t*130,540+S(a)*t*130,w=.2+(t>1)*t/2,w)

Sep 22 2024 10:37 PM UTC

}// 82/140

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Code patterns

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rodrigo.siqueira

remix of d/32479 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,i=3e4,i);i--;)x.clearRect(960+S(k=i/600+t/9)*i/85+T(i*i),C(k/2+T(i*i)/90-t/5)*i/50+i*T(i/4e5)+C(t/3)*99-99,w=S(i)*4,2)

Sep 21 2024 1:27 AM UTC

}// 137/140

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Cosmic thread

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rodrigo.siqueira

remix of d/32475 by u/freetobelee

function u(t) {

for(x.reset(i=2e4);i--;)x.fillRect(960+S(k=i/600-S(t+i/4e3)/3)*i/45,540+C(k+T(i**2)/70-t/4)*i/50,w=S(i+t)**2*5,w)

Sep 20 2024 5:54 PM UTC

}// 113/140

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Dirty spiral #fly

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lewdev

remix of d/32421 by u/jpthinker

function u(t) {

eval(unescape(escape`挮睩摴桼㴰ഊ砮晩汬剥捴⠰ⰰⰲ攳ⰲ攳⤍੦潲⡩㴱攳㭩ⴭ㬩ഊ爽ㄵ〬堽㤶〫匨椩⩓⡴⨲⤪爬夽㔴〫䌨椩⨱㔰ⱸ⹦楬汓瑹汥㵠桳氨㔵ⰹ㤥Ⱔ筓⡩⤪匨琪㈫㈩⨳〫㌰紥怬砮晩汬剥捴⡘ⱙⰲ〬㈰⤠`.replace(/u([^D].)/g,'$1%')))

Sep 17 2024 8:40 PM UTC

}// 134/140

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💍 Spinning gold ring (with shadow)

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rodrigo.siqueira

remix of d/32392 by u/rodrigo.siqueira

function u(t) {

for(x.reset(i=4e4);i--;c.style.filter=`invert(`)x.fillRect(X=960+S(k=i/99-S(i*i)-t/9)*i/9,540+C(k)*i/25,w=2/(1+3/t**5)+T(i-t)/9%9/t/(t+1),w)

Sep 10 2024 6:22 PM UTC

}// 140/140

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Spiral Genesis #spiral

u/SockTaters

The best spiral yet! Mesmerizing