Dweets awesomed by u/lsh

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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recursive

function u(t) {

for(i=63;i--;x.fillRect(t/3%1*1920,S(t)*500+500,80,80))t+=7.15,x.fillStyle=R((i&48)<<3,(i&12)<<5,(i&3)<<7)

Mar 14 2017 8:07 PM UTC

}// 107/140

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Room to spare.

u/sigveseb

pretty

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jprctr

function u(t) {

d=12
for(i=1;i<161;i++){
for(j=1;j<91;j++){
v=255-T(t+S(i+80)*t+C(j+45)*t)*125
x.fillStyle=R(v,v,v,0.1) 
x.fillRect(i*d,j*d,d,d);
}
}

Mar 14 2017 3:32 PM UTC

}// 133/140

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u/lionleaf

Hypnotic in fullscreen

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pangolin

function u(t) {

c.width=1920;f=(y,z)=>{x.lineTo(y*70+980,z*70+540)}
for(i=C(t);++i<25;){for(j=~~t-t;++j<20;){
f(i,0);f(0,-j);f(-i,0);f(0,j);}}
x.stroke();

Mar 14 2017 2:02 AM UTC

}// 138/140

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recursive

function u(t) {

w=C(t)
h=S(t)
for(c.width|=s=i=H=512;i--;x.fillRect(960+(X*w-S(i)*h)*H,H+(Y*w-Z*h)*H,d=(Z*w+Y*h)*5+9,d))X=C(o=i/82),Y=C(i)*S(o),Z=S(i)*w+X*h

Mar 12 2017 5:11 AM UTC

}// 140/140

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u/donbright

!!!
u/FireFly

Looks like a cushion!
u/username

pillow

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lsh

function u(t) {

c.width|=0;for(i=0;i<1920;i++){x.fillRect(t*100*S(i)+960,500*S(t*C(i))+500,100,50);x.fillStyle=R(C(i*t)*200,S(i*t)*200,T(i*t)*50);}

Mar 10 2017 6:51 PM UTC

}// 131/140

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u/donbright

xcellent
u/lsh

@donbright Thank you!

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lsh

remix of d/2000 by u/netgrind

function u(t) {

for(i=0;i<1920;i+=8){for(j=0;j<1080;j+=8){p=i*j
x.fillStyle=R(C(i*t)*255, C(j * t)*255, S(i*j * t)*255);
x.fillRect(i,j,8,8);}}

Mar 10 2017 2:21 PM UTC

}// 127/140

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u/jsizzle

Hahahah this makes me nautious. Cool, though!
u/lsh

@jsizzle Thanks! hahah

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kchplr

remix of d/2012 by u/kchplr

function u(t) {

for(i=99;i--;A=T%6.35,r=30+((T/6.35|0))**1.05*15,r+=S(A+S(T*6))*(r/9+C(T)*5),x.fillRect(960+S(A)*r,540+C(A)*r,2+r/99,2+r/99))T=t*9+i/99

Mar 10 2017 8:31 AM UTC

}// 135/140

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u/jsizzle

Cool!
u/DataMeta

#hiddengem #spiral #topology

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donbright

remix of d/2001 by u/jonbro

function u(t) {

W=(p)=>(p<0?-p:p)%256
for(i=1920;i-=16;)for(j=1080;j-=12;)p=C(t/3)*i*i+S(t/9)*j*j,x.fillStyle=R(W(p/5),W(p/9),W(p/3)),x.fillRect(i,j,16,12)

Mar 10 2017 1:25 AM UTC

}// 139/140

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remixing jonbro and netgrind 's use of color in circle / square style patterns. added some hyperbolas. longer you stare at this the weirder the patterns get - it doesnt' repeat for quite a long time

u/SpecialAgent

This is very hypnotic

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netgrind

function u(t) {

function W(p){return S(p+t*9)*99+157}
for(i=0;i<1920;i+=8){for(j=0;j<1080;j+=8){p=i*j
x.fillStyle=R(W(p*.2),W(p*.1))
x.fillRect(i,j,8,8);}}

Mar 9 2017 10:33 PM UTC

}// 139/140

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u/donbright

very smooth
u/sigveseb

Dweet number 2000 \o/

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netgrind

function u(t) {

w=960
c.width=w*2
x.beginPath()
x.lineWidth=5
for(i=0;i<6.28;i+=.0628){
p=i+t*.2
x.moveTo(C(p)*w+w,0)
x.lineTo(S(p)*w+w, 1080)
}
x.stroke()

Mar 9 2017 10:13 PM UTC

}// 139/140

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u/donbright

elegant!
u/jsizzle

awesome

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