Dweets awesomed by u/lars-erik

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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lars-erik

function u(t) {

c.width|=0,x.lineWidth=a=12.56
for(i=z=63;i>=0;i-=.2)x.lineTo(960+300*C(h=i*a/z+t)+(m=200*C(i*.5)),540+300*S(h)+(200*S(i/2)));x.stroke()

May 2 2021 9:46 PM UTC

}// 136/140

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Circular doodle

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KilledByAPixel

function u(t) {

for(c.width|=i=13,x.scale(i,i);i--;x.lineTo(99+(q?m:-m)*C(a=i*2.1),99-t%16*9+m*(S(a)+(z<2?z/2:3-z))))q=i>6,z=(t+q*3/2)%3,m=i%2*18
x.stroke()

May 2 2021 8:17 PM UTC

}// 140/140

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Climbing Up 🐜

u/magna

Creepy!

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Agnes

function u(t) {

c.width|=i=0;(A=t?A.filter(e=>1|x.fillRect(e[0]+=++i*S(Q=i+t),e[1]+=i*C(Q),i,i|(x.fillStyle=`hsl(${i},99%,50%,${9/i}`))):[]).push([960,540])

May 2 2021 1:10 PM UTC

}// 140/140

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Nucleus

u/Agnes

Probably broken on browsers with stricter HSL format than Chrome!
u/Xen

nice style

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Pascal

remix of d/22362 by u/BackendForth

function u(t) {

c.width|=w=480;for(j=2;j--;)for(i=k=300;i--;x.fillRect(w+w*X/Z+w*j*2+Z*12*j,w-Y/Z*w,s=k/Z**2,s))X=3*C(U=i+t)+C(V=i*i),Y=S(i)+S(V)+1,Z=S(U)-5

May 1 2021 1:43 PM UTC

}// 140/140

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#stereograph #d3 donut, cross your eyes for a 3D effect

Show more comments…
u/erin

so cool
u/BackendForth

Nice!
u/magna

Nice! The z is inverted for me...
u/tomxor

Neat. Magna, are you uncrossing your eyes by any chance? :P (i.e making your eyes further apart)
u/magna

u/tomxor yeah! I've gotten used to relaxing my eyes and looking "afar", from the way SIRDS normally work. I don't I can cross my eyes without looking at something actually close to my eyes. I suspect most people are more comfortable with relaxing their eyes than crossing them...
u/smtsjhr

so fun!
u/joeytwiddle

If you are a person like magna, change: fillRect(w to fillRect(3*w and +w*j to -w*j

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Pascal

function u(t) {

for(i=w=960;i--;x.fillRect(w+w*(S(i+t)+S(a=t+i/3))/2,w+(C(a)+C(a-t)*T(a)-2)/5*w,7,7))x.fillStyle=R(50,0,0,.01),c.style.filter=`contrast(5`

May 1 2021 1:03 PM UTC

}// 138/140

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symmetry

u/magna

Stylish!

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Agnes

function u(t) {

with(x)for(setTransform(1,0,0,1,Q=960,Y=t?++Y%1080:0),i=-Q;i++<Q;rotate(Y),fillRect(i,Y,M,M))fillStyle=`hsl(${M=C(1.6*i/Q)},${1e4/i}%,50%)`

May 1 2021 9:24 AM UTC

}// 139/140

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Red giant

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KilledByAPixel

remix of d/22668 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𩡯𬠨𪐽𨰮𭱩𩁴𪁼🐰𛁴🱸𛡦𪑬𫁒𩑣𭀨𦀫👁𚠽𡠨𦀫👁𚐬𦐫👂𚠽𡠨𦐫👂𚐬𞐬𞐩𞠨𦠽𜰴𛁅🐶𜀬𦀽𞀶𜀬𦐽𝰰𜀬𠐽𝐬𠠽𜰩𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𪐥𡐪𦠬𚁩𛱅𯀰𚐪𦠬𭀿𘑵𦱩𧐪𦠺𭑛𪑝🐡𚁩𙑅𙡩𛱅𚐬𦠩𚑆👟🐾𭑛𡰽𚁘𛱚𯀰𚐫𚁙𛱚𯀰𚐪𡑝🐭𘑵𦱇𧑼𜐻`.replace(/u../g,'')))

Apr 30 2021 11:00 PM UTC

}// 139/140

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Breakinski #sierpinski #breakout

u/Nascretis

That is really cool, as always!
u/KilledByAPixel

Thank you. ✌️😊

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Pascal

remix of d/22653 by u/Xor

function u(t) {

for(c.width=i=h=960;i--;)x.fillRect((i*h/2-i*i)**.5*S(i*h*h/(6-t/1e7)+t)+h/2,i,9,9)

Apr 30 2021 10:32 AM UTC

}// 83/140

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Pascal

remix of d/22670 by u/Xor

function u(t) {

for(i=c.width|=s=15;i--;)d=i**.5*s,x.fillStyle=R(d/2+99*C(t),i/8,99*S(t)),x.fillRect(960+C(a=t-i*3.883222*(1+t/1e3))*d,540+S(a)*d,s,s)

Apr 30 2021 10:15 AM UTC

}// 134/140

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psychedelic sunflower seeds

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lerc

remix of d/22653 by u/Xor

function u(t) {

for(c.width=i=h=960;i-->0;){
n=C(i+t);q=S(i/152)
n>0?0:x.fillRect((i*h/2-i*i)**.5*S(i+t)+h/2,i,n*n*9*q,9*(q**.3))
}

Apr 30 2021 7:02 AM UTC

}// 115/140

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Did some tweaks for changing size of rects for maybe some 3d effect

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