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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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rodrigo.siqueira

remix of d/13644 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(i=4e3,w=960;i--;x.fillRect(w+w*X/Z,w*Y/Z,s=20/Z/Z,s))X=C(s=i/200)*C(K=i/(10**-(~(t/3)%6))+t/3),Y=C(s)*S(K)-1,Z=S(i)*C(t)/2-2

May 6 2019 1:19 PM UTC

}// 139/140

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Demo of 3D objects #d3

u/iverjo

Nice!
u/iverjo

I like that it alternates between different 3D objects

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vinca

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵷㴲攳Ⱳ㴨椬眩㴾孃⡴⤪椭匨琩⩷ⱓ⡴⤪椫䌨琩⩷崬椽㜻椾〻椭㴮〰ㄩ堽䌨椩⩃⠹㤪椩ⱙ㵃⡩⤪匨㤹⩩⤬娽匨椩ⱓ⠹⩘⤫䌨㤪天㸰☦⡛堬婝㵲⡘ⱚ⤬砮晩汬剥捴⡷⼲⭘⼨娭㴴⤪眬㔴〫夯娪眬㔬㈩⤻`.replace(/u(..)/g,"$1%")))

May 6 2019 9:15 AM UTC

}// 140/140

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username

remix of d/13623 by u/username

function u(t) {

eval(unescape(escape`𪑦𚁴𚑴𪁲𫱷𨁠𒡣𛡯𭑴𩑲𢁔𣑌👠🁴𩑸𭁡𬡥𨐠𪑤👺🡣𚡢𨀊𮠮𫱮𪑮𬁵𭀽𮀽🡻𬰽𮠮𭡡𫁵𩐮𬱰𫁩𭀨𨁜𫡠𚑛𜁝𒡟👠𨐽𝐻𨠽𝠻𨐪𨠻𨐯𨠻𨐪𚡢𞱣🐹𞱡𚱢𚱣𞰤𮱳𯑠𛡳𬁬𪑴𚁠𞱠𚐊𩡯𬠨𙀽𜀻𧱛𙁝𞰤𚰫𚑳𚰽𨁜𫡠𚱟𦰤𧐫𨀠𛰯𘁠𚱥𭡡𫀨𧱛𙁝𚐊𮠮𭡡𫁵𩐽𬱽`.replace(/u../g,'')))

May 6 2019 7:03 AM UTC

}// 140/140

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drag to expand text area, press backspace to activate, type any valid expression in the first line to add it to the bottom, use semi colons in the first line to seperate expression

u/username

while editing, you should have an invalid expression to have the cursor stay in the first line
u/username

e.g. copy this into the first line d=7;d*c;d!=c;d=c;d!=c

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KilledByAPixel

remix of d/13639 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`琿潮捬楣欽攽㹦⹳瑡牴⠩㩸㵮敷⁁畤楯䍯湴數琬昽砮捲敡瑥䉵晦敲卯畲捥⠩ⱨ㴨昮扵晦敲㵸⹣牥慴敂畦晥爨ㄬㅥ㜬ㅥ㔩⤮来瑃桡湮敬䑡瑡⠰⤬栮獥琨栮浡瀨⡟ⱴ⤽㸨琼㰸年㸾㔩♴⤩ⱦ⹣潮湥捴⡸⹤敳瑩湡瑩潮⤻`.replace(/u(..)/g,"$1%")))

May 6 2019 4:13 AM UTC

}// 140/140

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BYTEBEAT DWEET #10 TRIBBLE - Click Canvas to Play Song! (Loudness warning, Only works in Chrome)

u/KilledByAPixel

Different method that saves 2 characters allowing for slightly more complex formula with the downside that clicking on the canvas more then once will mess it up.
u/KilledByAPixel

#MinBytes - This dweet was collected on my album 𝓜𝓲𝓷𝓑𝔂𝓽𝓮𝓼 http://minbytes.3d2k.com

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rodrigo.siqueira

remix of d/13644 by u/rodrigo.siqueira

function u(t) {

c.width|=0
x.fillRect(0,0,2e3,2e3)
for(i=2e3,w=960;i--;x.clearRect(w+w*X/Z,w*Y/Z,s=40/Z/Z,s))
X=4*i/2e3-2,Y=1+X**4*T(t)-C(t)/2,Z=(i%29)/9+1

May 5 2019 10:20 PM UTC

}// 139/140

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Falling carpet of dots #d3

u/joeytwiddle

Reminiscent of d/8107 and codegolf.tk/a/269

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rodrigo.siqueira

remix of d/13611 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(i=2e3,w=960;i--;x.fillRect(w+w*X/Z,w*Y/Z,s=40/Z/Z,s))
X=4+C(i/50-t)/2-t%9,
Y=S(i/50-t)/2+1,
Z=(i%29)/9+1

May 5 2019 10:07 PM UTC

}// 119/140

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Rolling cylinder using Cantelope-Pavel's 3D engine. #D3

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magna

remix of d/13638 by u/magna

function u(t) {

eval(unescape(escape`挮睩摴栽眽㉥㈻睩瑨⡸⥻晩汬剥捴⠰ⰰⱷⱷ⤻景爨椽㤻椭ⴻ晩汬⡳瑲潫攨⤩⥦楬汓瑹汥㵳瑲潫敓瑹汥㵒⡷Ɫ敧楮偡瑨⠩ⱷ⽩Ⱞ㐫䵡瑨⹲慮摯洨⤯㈹⤬慲挨㈪⩩ⰶ㥞椬㥼椬〬㜩ⱦ楬瑥爽恢汵爨⑻椦ㅽ灸恽`.replace(/u(..)/g,"$1%")))

May 5 2019 5:02 PM UTC

}// 136/140

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Flickery blurry #bokeh

u/magna

Uncompressed: c.width=w=2e2;with(x){fillRect(0,0,w,w);for(i=9;i--;fill(stroke()))fillStyle=strokeStyle=R(w,beginPath(),w/i,.4+Math.random()/29),arc(2**i,69^i,9|i,0,7),filter=blur(${i&1}px}
u/vinca

Beautiful blur and flicker.
u/aleamb

beautiful!

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rodrigo.siqueira

remix of d/13636 by u/katkip

function u(t) {

if(t<5)x.fillRect(0,0,2e3,46*t),x.drawImage(c,1254,y=225,X=666,Y=950),x.drawImage(c,0,y,X,Y)

May 5 2019 4:42 PM UTC

}// 92/140

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The Cantor ternary set is created by iteratively deleting the open middle third from a set of line segments. #fractal

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geb

remix of d/13596 by u/robbyg

function u(t) {

c.width|=0
p=-1.6
with(x)for(h=170,w=120;h--;)v=h/16,beginPath(),moveTo(H=h%16*w,V=v*w),fill(arc(H,V,99,a=t+h%2*p+v%2*p*2,p*3+a))

May 5 2019 4:17 PM UTC

}// 129/140

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Unsynchronized pizza slices

u/robbyg

lol

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KilledByAPixel

remix of d/13630 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`琿␺砽湥眠䅵摩潃潮瑥硴ⱦ㵸⹣牥慴敂畦晥牓潵牣攨⤬栽⡦⹢畦晥爽砮捲敡瑥䉵晦敲⠱ⰳ攵ⰳ攳⤩⹧整䍨慮湥汄慴愨〩ⱨ⹳整⡨⹭慰⠨弬琩㴾琾㸵♴⨱㌱♴⤩ⱦ⹣潮湥捴⡸⹤敳瑩湡瑩潮⤬潮捬楣欽攽㹦⹳瑡牴⠩`.replace(/u(..)/g,"$1%")))

May 5 2019 4:05 PM UTC

}// 140/140

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BYTEBEAT DWEET #9 MAYHEM - Click Canvas to Play Song! (Only works in Chrome, $ error is expected)

u/Jezza

Cool!
u/joeytwiddle

This is my favourite (so far)
u/KilledByAPixel

#MinBytes - This dweet was collected on my album 𝓜𝓲𝓷𝓑𝔂𝓽𝓮𝓼 http://minbytes.3d2k.com