Dweets awesomed by u/joeytwiddle

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: #Food

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katkip

remix of d/14469 by u/katkip

function u(t) {

c.width*=1;x.lineWidth=9;for(i=211;i--;)x.beginPath(),r=S(t+i/59+S(t+i/29))+1.1,x.arc(960,140,10+i*4,r,r+1),x.stroke()

Jun 6 2019 2:46 PM UTC

}// 118/140

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u/joeytwiddle

Spooky

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katkip

function u(t) {

c.width*=1;x.lineWidth=9;for(i=111;i--;)x.beginPath(),r=i*C(i/99+t/3+S(i)/999),x.arc(960,540,10+i*9,r,3.14+r),x.stroke()

Jun 6 2019 2:40 PM UTC

}// 120/140

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katkip

function u(t) {

t||(x.translate(960,540)),x.rotate(.01);for(i=99;i--;)x.fillRect(-27*i,-27*i,54*i*(r=T(t)),54*i*r),x.clearRect(-25*i,-25*i,r*50*i,r*50*i);

Jun 6 2019 1:24 PM UTC

}// 138/140

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Zooming into a pyramid loop #d3 #perspective #pyramid #geometry

u/joeytwiddle

Wow!

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keithclark

remix of d/14444 by u/keithclark

function u(t) {

for(o=[c.width=i=320];i--;o[i]=[C(t+=w=99),S(t),S(i)]);for([Z,X,Y]of o.sort())x.font=`${5+Z--*3|0}px a`,x.fillText('🔵',160+w*X/--Z,w+w*Y/Z)

Jun 6 2019 12:16 PM UTC

}// 139/140

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Depth sorting: Cylinder

u/keithclark

144 - sphere: for(o=[c.width=i=320];i--;o[i]=[C(t+=w=99)*C(i),S(t)*C(i),S(i)]);for([Z,X,Y]of o.sort())x.font=4+Z--+'pt a',x.fillText('🔵',160+w*X/--Z,w+w*Y/Z)

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username

remix of d/3013 by u/cantelope

function u(t) {

for(K=1e3,E=20,H=j=54;j--;)for(i=49;i--;x.fillRect(X*2,Y,E*2,E))x.fillStyle=R(S(J=((X=i*E)**2+(Y=j*E)**2)**(.6-S(t)/5)/H)*K,K+C(J)*K,K-S(J))

Jun 6 2019 12:03 PM UTC

}// 140/140

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#randomremix no 6 - water?

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KilledByAPixel

function u(t) {

for(i=0;i<1e3;x.fillRect(i?i*9%2e3+40*S(t+i):0,i++?q*5+i*99%299:0,q,q))q=i?((1+S(i))*3e7-t*(i%9+9))%199:2e3,x.fillStyle=R(i?255:0,i?q*1.4:0)

Jun 6 2019 5:44 AM UTC

}// 140/140

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#fire #uncompressed

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pavel

remix of d/14376 by u/pavel

function u(t) {

t?x.arc(w=960,h=540,h,0,c.width|=0):X=Y=1e3
X*X+Y*Y>2.4e5&&(r=C(t*t)*8+12,U=-X/r,V=-Y/r)
X+=U;Y+=++V;x.arc(w+X,h+Y,5*r,0,7);x.fill`evenodd`

Jun 6 2019 5:00 AM UTC

}// 139/140

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#physics #bounce updated so ball size reflects speed

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pavel

function u(t) {

with(x)for(i=4;i--;fill())for(beginPath(j=4),fillStyle=i?R(a=128+50*S(~i%3+13*t),a,a):'#868';a=j--/.64;)arc(960,536-~i%3*5,i<3?300:3e3,a,a)

Jun 6 2019 4:36 AM UTC

}// 139/140

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The Perpetual Diamond #illusion

Show more comments…
u/pavel

Contrast Reversals Along Thin Edges Create the Appearance of Motion in Objects
u/pavel

https://doi.org/10.1177/2041669518815708
u/katkip

Wow
u/metamero

beautiful!!! #opticalillusion
u/SMON

It's grest but cannot hold a candle to some of your other works. :)
u/agshapiro

love it!

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metamero

remix of d/14452 by u/metamero

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱮𭀽𘠳𝠰𬁸𘁁𬡩𨑬𘁂𫁡𨱫𘠬𩡩𫁬𤱴𮑬𩐽𚁩👦𬡡𫑥𛐱𚐿𪐾𜰿𘠣𡡆𡠢𞠢𘰵𝐵𘠺𘠣𜀰𡠢𛁩𙠦𪐼𝀿𪑞𜰿𩡩𫁬𥁥𮁴𚁩𧠱🰢𮑥𫁬𫱷𘠺𘡩𫁬𭑳𫱲𮐢𛀹𞐬𪐪𝀲𜀩𞡲𫱴𨑴𩐨𛠸𚐺𩡩𫁬𤡥𨱴𚁩𚠱𞐭𝠹𛀭𜡥𜰬𪐿𜐳𞠳𩐳𛀴𩐳𚐻𫱮𨱬𪑣𪰽𬡥𬱥𭀻`.replace(/u../g,'')))

Jun 5 2019 10:19 PM UTC

}// 140/140

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animated version of d/14452 click to reset

u/metamero

#illusion #opticalillusion behind the scenes ;)
u/Xen

at first i was ok, but then i started screaming "I STILL SEE YOU!", and thats how it happened....
u/joeytwiddle

Very convincing illusion!

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metamero

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁩🐭𜐬𩡯𫡴🐢𜰲𜁰𮀠𠑲𪑡𫀠𠡬𨑣𪰢𞱩𚰫🀹𞐻𭀿𜀺𪐦𙡩🀴🱩𧠳🱦𪑬𫁔𩑸𭀨𪑞𜐿𘡹𩑬𫁯𭰢𞠢𪑬𫁵𬱯𬡹𘠬𞐹𛁩𚠴𜠰𚐺𬡯𭁡𭁥𚀮𝰸𝐩𞡦𪑬𫁒𩑣𭀨𪐪𜠳𛐹𞐬𛐲𩐳𛁩🰱𜰺𜡥𜰬𝁥𜰩𚑦𪑬𫁓𭁹𫁥👩🱩🠳🰢𘱆𡡆𘠺𘠣𝐵𝐢𞠢𘰰𜁆𘠻`.replace(/u../g,'')))

Jun 5 2019 9:02 PM UTC

}// 139/140

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"Illusory yellow distortion" by Akiyoshi Kitaoka

u/metamero

"If observers approach or move away from the image fixating at the center, then the words appear to be distorted."
u/metamero

uncompressed: with(x)for(i=-1,font="320px Arial Black";i++<99;t?0:i&&i<4?i^3?fillText(i^1?"yellow":"illusory",99,i*420):rotate(.785):fillRect(i*23-99,-2e3,i?13:2e3,4e3))fillStyle=i?i>3?"#FFF":"#555":"#00F";
u/metamero

#illusion #opticalillusion
u/metamero

d/14455 animated version

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