Dweets awesomed by u/aleamb

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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rnbw

function u(t) {

for(c.width^=i=0;i++<45;)for(j=-6;j++<23;x.fillStyle='#ac6'+(4+(i+j)%2*2))x.fillRect((i*(b=99+C(t)*35))+(a=S(t)*600%b)-500,(j*b)+a,d=b*.9,d)

Feb 7 2019 3:57 PM UTC

}// 140/140

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zooming tiles without transform! doesn't perform very well, though

u/rnbw

(i'm surprised that that hastily-made alpha adjustment worked...)

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ds0

function u(t) {

r=c.width*=1
for(i=9;i--;){Q=4*t+i
x.beginPath()
x.ellipse(r*(i+1)/10,540+300*S(Q),90,Math.abs(90*C(Q)),0,0,6.3)
C(Q)>0?x.fill():x.stroke()}

Feb 7 2019 3:32 PM UTC

}// 140/140

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New_Core

function u(t) {

for(i=840;i--;)x.fillStyle=`hsl(${(i*S(S(t)*S(t*2+i*.157))*C(i/520)+i*9)/(.05*C(t)+1)},99%,50%`,x.fillRect(i%40*50,~~(i/40)*50,50,50)

Feb 6 2019 12:46 PM UTC

}// 133/140

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pavel

remix of d/9294 by u/cantelope

function u(t) {

for(i=w=c.width|=q=6.2832;i--;x.arc(960+S(p=(i>>1)*q/9-t)/Z*w,540+C(p)/Z*w,Z*Z,a=-t%q,a))Z=2+(i-1&-2)%98-8*t%2,i%98||x.beginPath(x.stroke())

Feb 6 2019 2:02 AM UTC

}// 140/140

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#uncompressed

u/cantelope

gotta hand it to you 👏
u/pavel

Playing it safe on the arc angle, modding it by 2pi just to avoid the bug on Safari.

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pavel

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👩🐱𝀻𛐭𪐻𮀮𬱴𬡯𪱥𚀩𚑦𫱲𚁸𛡢𩑧𪑮𤁡𭁨𚁬👩𛐷🰹𞐺𜀩𞱬𛐭𞱸𛡬𪑮𩑔𫰨𞐶𜀪𚁺𚱘𚡃𚁴𚐫𦠪𤰨𭀩𚐯𮠬𝐴𜀫𞐶𜀪𚀨𚀲𚡩𛐱𚐯𜱼𜀩𙐳𛐱𯁼𩀩𛱺𚐩𩀽𫀭𝀹𛁘🐨𪐯𝑼𜀩𛐱𯁼𩀬𦠽𪐥𜰭𜑼𯁤𛁺🐴𛑘𚡓𚁴𚐫𦠪𠰨𭀩𛁺𚠽𮠾𜀻`.replace(/u../g,'')))

Feb 2 2019 8:42 PM UTC

}// 138/140

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for(c.width|=i=14;--i;x.stroke())for(x.beginPath(l=i-7?99:0);l--;x.lineTo(960*(z+X*C(t)+Z*S(t))/z,540+960*(((2*i-1)/3|0)%3-1||d)/z))d=l-49,X=(i/5|0)-1||d,Z=i%3-1||d,z=4-X*S(t)+Z*C(t),z*=z>0

u/katkip

#compressed
u/cantelope

cool!
u/katkip

#cube
u/UEZ

#perspective #vanishingPointProjection

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SMON

remix of d/12066 by u/thorbear

function u(t) {

t?0:z=y=c=a=1.4,b=1.56,d=-6.56,x.globalAlpha=.01;
for(i=2e4;--i;)n=d*S(a*z)-S(b*y),y=c*C(a*z)+C(b*y),z=n,x.fillRect(z*125+950,y*200+500,4,4)

Feb 1 2019 1:48 PM UTC

}// 140/140

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Okay, now with the original parameters!

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Kyoushu

function u(t) {

x.clearRect(0,0,1920,1080);for(i=0;i<=800;i+=0.9){b=t+i*C(t/100);x.fillRect(S(b)*(960-i)+960,C(b)*(540-i)+540,10,10);}

Feb 1 2019 10:53 AM UTC

}// 118/140

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If you play with variables long enough, something cool will probably happen

u/katkip

True

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thorbear

function u(t) {

i=2e3,u=v=t,a=b=1.7,c=0.6,d=1.2,s=240,x.globalAlpha=.01;for(;--i;)w=S(a*v)-c*C(a*u),v=S(b*u)+d*C(b*v),u=w,x.fillRect(960+s*u,540+v*s,4,4)

Jan 31 2019 9:20 PM UTC

}// 137/140

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actual Clifford

u/robbyg

#attractor
u/rodrigo.siqueira

Clifford #pickover Attractor

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rodrigo.siqueira

remix of d/12001 by u/thorbear

function u(t) {

X=t/6;Y=2;s=999;x.globalAlpha=.05;for(i=3e3;i--;)
Y=1.66-2*(.1*X-S(1.2*Y)),
x.fillRect(X*s,Y*s-700,3,3)

Jan 31 2019 2:25 PM UTC

}// 103/140

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Bifurcation diagram attractor of the logistic map. xₙ₊₁ = r * xₙ(1-xₙ). Bifurcation diagrams enable the visualization of bifurcation theory. #fractal

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sam

function u(t) {

x.fillRect(0,0,2e3,2e3);for(i=5e3;i--;Z=170-(t*60+i)%160,s=280/Z,x.clearRect(960+1/Z*(-99+i*3e72%199)*900,540+(-70+i*8e01%140)/Z*700,s,s));

Jan 31 2019 12:10 PM UTC

}// 139/140

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u/katkip

#starfield #stars #space #d3
u/cantelope

reciprocals tho: 960+1/Z*(-99+i*3e72%199)*900 -> 960+(-99+i*3e72%199)/Z*900
u/cantelope

might have been good to reference the source: d/2336

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