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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.

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Current theme challenge: #Food

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danny@hille.dk

remix of d/20689 by u/yonatan

function u(t) {

q=c.width=99;for(m=20;m--;)for(n=i=q;i--;x.fillRect(i,a*(25-m),2,q,x.fillStyle=R(m*9)))for(a=j=3;j--;a+=S(((t/m*q+i)*S(m*k))*k/9)/k)k=4**j

Nov 18 2020 7:25 PM UTC

}// 139/140

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golf and play

u/danny@hille.dk

-2 bytes -> q=c.width=99;for(m=20;m--;)for(n=i=q;i--;x.fillRect(i,a*(25-m),2,q,x.fillStyle=R(m*9)))for(a=j=3;j--;a+=S((t/m*q+i)*S(m*k)*k/9)/k)k=4**j*

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yonatan

remix of d/16195 by u/yonatan

function u(t) {

eval(unescape(escape`𬐽𨰮𭱩𩁴𪀽𞐹𞱦𫱲𚁶𨑲𘁭🐳𜀬𨐬𪠬𪰬𪐻𫐭𛐻𚑦𫱲𚁮🐱𛑭𛰳𜀬𪐽𬐻𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚁩𛁡𚠨𜠹𛑭𚐯𜠬𜐬𬐬𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀲𜀰𛀤𮱭𚠳𯐥𛀤𮰵𜀫𤰨𫠪𝀩𚠵𜁽𙐩𨀩𚑦𫱲𚁡🐳𛁪🐱𜠻𪠭𛐻𨐫👓𚀨𚁴𛱭𚡱𚱩𚐫𞐪𤰨𫐪𪰩𚐪𪰯𞐩𛱫𚑫🐲𚠪𪠻`.replace(/u../g,'')))

Nov 18 2020 5:52 PM UTC

}// 140/140

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much faster in firefox

Show more comments…
u/danny@hille.dk

NICE!
u/tomxor

Woah!! The low res makes it feel more real for some reason.
u/DataMeta

AMAZING #landscape
u/ciaccodavide

wow D:
u/rep_movsd

This is amazing
u/Xen

nicely done!

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ntsutae

remix of d/20669 by u/tomxor

function u(t) {

for(c.width&=i=8320;i--;)
x.fillRect(X=i&127,Y=i>>7,
k=S(8*t+X*X-3*Y*Y+19*X*Y)+.5,k)

Nov 18 2020 4:30 PM UTC

}// 84/140

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u/tomxor

#illusion This is messing with my eyes! looks like continuous rotating slices without ever getting beyond 90 degrees
u/joeytwiddle

Travelling without moving
u/ntsutae

I didn't have enough understanding and respect for the work

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ciaccodavide

remix of d/20686 by u/ciaccodavide

function u(t) {

c.width|=1
for(i=99;i--;)
x.moveTo(960+C(t*i/100)*300,530+S(t*i/100)*300),
x.arc(960+C(t*i/100)*300,530+S(t*i/300)*300,.3*i,0,9)
x.stroke()

Nov 18 2020 4:28 PM UTC

}// 139/140

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u/Xen

love the style
u/danny@hille.dk

reminds me of kinetic sculptures

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ciaccodavide

remix of d/20674 by u/ciaccodavide

function u(t) {

c.width|=1
for(i=0;i<99;i++)
x.moveTo(960+C(t*i/100)*300,530+S(t*i/100)*300),
x.arc(960+C(t*i/100)*300,530+S(t*i/300)*300,.3*i,0,9)
x.fill()

Nov 18 2020 4:26 PM UTC

}// 140/140

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rodrigo.siqueira

remix of d/20662 by u/rodrigo.siqueira

function u(t) {

x.beginPath()
r=(i)=>S(t*6+i/2.7-3.6)*150+i
x.moveTo(960+C(t)*480,540+S(t)*480)
x.lineTo(r(960),r(540))
x.lineWidth=.7
t<6.28&&x.stroke()

Nov 18 2020 4:10 PM UTC

}// 137/140

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Fairy Star (Heptagram) #spirograph

u/danny@hille.dk

very aesthetically pleasing

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danny@hille.dk

function u(t) {

for(c.width|=Y=9;--Y>0;)for(m=X=400;X--;)x.fillRect(X*5,C(t+X/130)*S(t*2+X/255)*m+m+Y**2+Y*X/77*S(X/99+t*2)*9+99,2,2)

Nov 18 2020 4:03 PM UTC

}// 117/140

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Just testing some sine wave patterns

Show more comments…
u/danny@hille.dk

Anybody remember the original PS3 dash wave patterns? Any ideas on how to replicate?
u/Xen

possibly bezierCurveTo() with .2 alpha?
u/danny@hille.dk

Definitely some alpha involvement, but i think you need a plane and add some waves to that, and then rotate the plane and add some waves to the planes edge. I tried to replicate in 2d using only sin function, but it lookes like... a bunch of sinus curves :-) http://glslsandbox.com/e#69430.0
u/danny@hille.dk

I found a video of the dash waves... Im not even remotely close :-) https://www.youtube.com/watch?v=UMzKdD_6oUE&…
u/joeytwiddle

My mix: for(c.width|=Y=9;Y>0;Y-=.2)for(m=X=400;X-=2;)x.fillRect(X*5,C(t+X/130)*S(t*2+X/255)*m+m+Y**2+Y*X/77*S(X/99+t*2+C(X/25-Y)/5)*9+99,10,.5)
u/danny@hille.dk

wau u/joeytwiddle that looks amaizing

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ciaccodavide

remix of d/20680 by u/ciaccodavide

function u(t) {

eval(unescape(escape`𦀽𪐽🠹𝠰𚱃𚁴𚡩𛰲𜀩𚠳𞐪𪐬𦐽𪐽🠵𝀰𚱓𚁴𚡩𛰲𜀩𚠨𜐶𚱓𚁴𚐪𞀩𚡩𛁬👩🐾𝀴𝀭𦐨𪐩𞱦𫱲𚁣𛡷𪑤𭁨𯀽𪐽𜰹𞱩𛐭𞰩𮀮𩡩𫁬𤱴𮑬𩐽𤠨𫀨𪐩𛁬𚁩𚐬𫀨𪐩𚐬𮀮𩡯𫡴👩𚠳𚱠𬁸𘁩𨀬𮀮𩡩𫁬𥁥𮁴𚁓𭁲𪑮𩰮𩡲𫱭𠱨𨑲𠱯𩁥𚀱𜐰𝀴𚱴𛱩𚐬𦀨𪐩𛁙𚁩𚐩`.replace(/u../g,'')))

Nov 18 2020 10:38 AM UTC

}// 140/140

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Sequentially Changing Chars

u/ciaccodavide

X=i=>960+C(t*i/20)*39*i,Y=i=>540+S(t*i/20)*(16+S(t)*8)*i,l=i=>444-Y(i);for(c.width|=i=39;i--;)x.fillStyle=R(l(i),l(i),l(i)),x.font=i*3+`px i`,x.fillText(String.fromCharCode(11044+t/i),X(i),Y(i))

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ciaccodavide

remix of d/20679 by u/ciaccodavide

function u(t) {

eval(unescape(escape`𦀽𪐽🠹𝠰𚱃𚁴𚡩𛰲𜀩𚠳𞐪𪐊𦐽𪐽🠵𜰰𚱓𚁴𚡩𛰲𜀩𚠨𜐶𚱓𚁴𚐪𞀩𚡩𒡬👩🐾𜠵𝐭𦐨𪐩𛰳𒡦𫱲𚁣𛡷𪑤𭁨𯀽𪐽𜰹𞱩𛐭𞰩𮀮𩡩𫁬𤱴𮑬𩐽𤠨𫀨𪐩𛁬𚁩𚐬𫀨𪐩𚐬𮀮𩡯𫡴👩𚠳𚱠𬁸𘁡𨀬𮀮𩡩𫁬𥁥𮁴𚁓𭁲𪑮𩰮𩡲𫱭𠱨𨑲𠱯𩁥𚀱𜐰𝀴𚐬𦀨𪐩𛁙𚁩𚐩`.replace(/u../g,'')))

Nov 18 2020 10:34 AM UTC

}// 139/140

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Persper

u/ciaccodavide

X=i=>960+C(t*i/20)*39*i,Y=i=>530+S(t*i/20)*(16+S(t)*8)*i,l=i=>255-Y(i)/3;for(c.width|=i=39;i--;)x.fillStyle=R(l(i),l(i),l(i)),x.font=i*3+`px a`,x.fillText(String.fromCharCode(11044),X(i),Y(i))

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ciaccodavide

remix of d/20678 by u/ciaccodavide

function u(t) {

X=i=>960+C(t*i/20)*39*i
Y=i=>530+S(t*i/20)*(16+S(t)*8)*i
for(i=39;i--;)x.font=`${i*3}px a`,x.fillText('🔵',X(i),Y(i))

Nov 18 2020 10:12 AM UTC

}// 116/140

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Blue