Dweets awesomed by u/DataMeta

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: #Opposites

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New_Core

function u(t) {

for(c.width|=f=i=700;i--;x.fillRect(f/2*S(v=i/f)*S(w=t+i),f/2-i,A=7*S(v)*C(w)+9,A))x.setTransform(a=C(t),b=S(t),b,-a,t%5*f-f,f-f*S(t*2%3.1))

Dec 13 2020 8:28 PM UTC

}// 140/140

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SpaceX starships nosecone from sn8 test ;)

u/magna

Too soon

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Pascal

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁞🐰𞱣𛡳𭁹𫁥𛡦𪑬𭁥𬠽𘡢𫁵𬠨𝀰𬁸𚑣𫱮𭁲𨑳𭀨𜰰𜀩𬱥𬁩𨐨𚐢𞱦𫱲𚁩🐱𞱩🀴𞱩𚰫𚑸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𚁩𚠹𜀫𜠰𚡴𚐥𜰶𜁽𛀹𞐥𛀱𜀥𚑠𛁸𛡦𪑬𫁒𩑣𭀨𝰶𜀫𚁷🐴𜀰𚐪𠰨𭀫𪐪𚠲𚐬𜐴𜀫𭰪𤰨𭀫𪐩𚠪𜠬𭰬𭰩`.replace(/u../g,'')))

Dec 12 2020 5:50 PM UTC

}// 139/140

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sepia #metaballs #obfuscated

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁩🐲𩐳𛁩𚐻𪐭𛐻𮀮𨱬𩑡𬡒𩑣𭀨𞐶𜀫𦐯𚁚👃𚁰𚐪𩀫𞀩𚠨𪀽𝐴𜀩𛁨𚱘𛱚𚡨𛀵𛀸𚐩𦀽𤰨𬀽𪐯𜰮𜐸𜰩𚠨𡰽𤰨𬐽𚁩𛰲𜁼𜀩𛰹𛠵𝐫𭀩𚐫𡰪𝀬𦐽𤰨𬀽𣑡𭁨𛡡𭁡𫠲𚁙👃𚁰𚐬𦠽𠰨𬐩𚠴𚱓𚁰𚐪𠰨𬐩𚐫𭀩𚠨𩀽𣑡𭁨𛡨𮑰𫱴𚁙𛁚𚐩`.replace(/u../g,'')))

Dec 11 2020 2:39 PM UTC

}// 140/140

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perspective torus #d3

u/rodrigo.siqueira

I always learn a lot about perspective by reading Cantelope's code. Thanks!

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KilledByAPixel

remix of d/20941 by u/KilledByAPixel

function u(t) {

for(k=c.width|=w=60;n=k--/w|0;x.fillRect(j=k%w/12|x.rotate(k%w/1.9),S(n**j),1,1))x.setTransform(v=3+n%9,0,0,k%2?v:-v,n*w,(n*n+t)*360%1300-w)

Dec 10 2020 9:42 PM UTC

}// 140/140

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snow fall #snowflake

u/jellyedwards

Amazing!

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jellyedwards

function u(t) {

f=(X,Y,L,A,g)=>{if(g>0){for(i=L/=2;--i>0;)x.fillRect(X+=C(A),Y+=S(A),1,1)
f(X,Y,L,A-g%3+1,g-1)}}
f(960,540,b=40*t%600,Math.PI/3*~~b,5-~~t%5)

Dec 10 2020 4:24 AM UTC

}// 140/140

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#snowflake crystallization

u/sigveseb

Nice one!
u/katkip

great technique

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KilledByAPixel

remix of d/20939 by u/KilledByAPixel

function u(t) {

c.style.filter='invert('
for(t*=i=300;i--;x.fillText(j=i/12|0,j,j*S(j*j*t),3))x.setTransform(1,0,0,i%2*2-1,t*24%1980,t),x.rotate(i%12/1.908)

Dec 8 2020 5:55 AM UTC

}// 140/140

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#snowflake study #3

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁩🐱𩐴𛁩𚐬𮀮𬱴𬡯𪱥𤱴𮑬𩐽𙱳𫡯𭰧𞱩𛐭𞱩𙐱𜡼𯁸𛡢𩑧𪑮𤁡𭁨𚁸𛡳𭁲𫱫𩐨𚐩𚑸𛡬𪑮𩑔𫰨𞐶𜀫𚁓𚁰👩𛰲𚐯𚁚🐨𪠽𬀯𝡼𜀩𙐷𛰸𜀰𚐪𚁬👩𙐲𛰵𩐳𚐫𚁪𛰳𜀫𤰨𭀯𝠩𚠹𚐥𜐴𛐷𚐯𦠬𝐴𜀫𚀨𪠪𚠳𛠱𚱴𚐥𞀭𝀫𠰨𬀩𛱚𚡬𚐯𦠩`.replace(/u../g,'')))

Dec 7 2020 8:01 PM UTC

}// 140/140

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rodrigo.siqueira

remix of d/19740 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(i=1e4;i--;f(0,0,260/(1+i%2),t*i))f=(X,Y,s,r)=>s>1?f(Y+s*S(r),X+s*C(r),s/(2+t),r*5):x.fillRect(X+940,Y+540,1,.4)

Dec 7 2020 1:02 PM UTC

}// 140/140

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White #snowflake #symmetry on black background

u/katkip

wow
u/andrea270872

Terrific. Looks like some kind of X-ray picture. Great

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pavel

function u(t) {

for(w=i=c.width|=0,x.globalAlpha=.15;i--;x.fillText('❄',-4,-4))x.setTransform(s=i*i%63/7,0,0,s,(i+s*w/(1+9**C(t/3)))%w,(s/5*t+T(i*i))%2*600)

Dec 6 2020 4:36 AM UTC

}// 140/140

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Snowstorm

u/donbright

lovely
u/KilledByAPixel

#snowflake

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pavel

function u(t) {

for(i=c.width|=0;i--;x.fillRect(X,540+200*C(a),-150,7))X=i%960*2,x.fillStyle=`hsl(${q=X/8+60*t},69%,${42+32*S(a=(q/32%1+(i>960))/.32)}%`

Dec 4 2020 8:45 PM UTC

}// 136/140

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Ribbons

u/pavel

Dynamically swapping the draw order to get proper overlapping. Change i>960 to 1 or 0 to see how this works.
u/Qwitter

cool, and thanks!

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