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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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KilledByAPixel

function u(t) {

for(i=0;i<3e3;)x.fillStyle=R(i%1e3,i%250,i%150,.3+i),j=t*i/9,x.fillRect((S(i)*2e5-j)%2e3-9,(S(i*i)*2e5+j/2)%1080-9,Z=i++?3+9*S(i)**30:1e5,Z)

Apr 13 2019 2:56 AM UTC

}// 140/140

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2D #Starfield I squeezed in more colors and motion blur.

u/13thptr

stylish
u/iverjo

Meteor rain!

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pavel

function u(t) {

for(i=c.width|=h=1.5708;Y=i--%3-1||S(i);x.fillRect(960+S(a+t)*800/r/z,540+Y*800/z,s=60/z/z,s))a=i%3?i:i*h,r=(a%2?S:T)(a%h+h/2),z=3+C(a+t)/r

Apr 12 2019 7:45 AM UTC

}// 139/140

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Butterfly box #d3 #cube #perspective

u/Jezza

Woah!
u/KilledByAPixel

Well done.
u/lionleaf

That's wild! Love it #butterfly

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Jezza

function u(t) {

with(Math){M=960;N=540;r=random;for(i=M;i--;)A=r()*PI*2,B=acos(r()),X=C(A)*S(B),Y=S(A)*S(B),D=.2,x.fillRect(X*N+M,Y*N+N,D,D)}

Apr 12 2019 5:12 AM UTC

}// 125/140

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Simple shaded sphere

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pavel

function u(t) {

for(c.width=i=960;--i;x.ellipse(480,270-56*(j%2-.5)*y,r=32*(64-y*y)**.5,r/2,0,a=(j+t%1)/7,a+!j*7))j=i>>4,y=i%16-8;x.stroke()

Apr 10 2019 8:35 AM UTC

}// 124/140

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#wireframe #sphere

u/f8f82804

#d3
u/Xen

Nice!
u/lionleaf

Nice one! #globe
u/pavel

I use 44 longitude lines so the arc angle between adjacent two is 2*pi/44 which is approximated by 1/7 to 4 decimal places.
u/pavel

Using the famous pi ~ 22/7 approximation.

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pavel

function u(t) {

for(a=b=u=c.width|=i=0;i++<99*t;x.fillRect(960+800*C(a+t)*S(b)/z,540+800*C(b)/z,s=20/z/z,s))a+=C(u+=i**.9%1-.5)/69,z=2+S(a+t)*S(b+=S(u)/69)

Apr 10 2019 1:23 AM UTC

}// 139/140

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Wiggly boy

Show more comments…
u/magna

Awesome!
u/DataMeta

Cool!!
u/joeytwiddle

Bloody brilliant #sphere #perspective
u/katkip

this will get to the top
u/katkip

#d3
u/iverjo

Wow!
u/donbright

#randomwalk

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f8f82804

remix of d/13115 by u/Xen

function u(t) {


x.fillText(code,c.width=-1,9);

Apr 9 2019 5:05 PM UTC

}// 32/140

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#32bytes #dwitterquine

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pavel

function u(t) {

for(c.width|=k=0;k<50*t;x.ellipse(960,540-750*(i%2-.5)*y,r=400*(1-y*y)**.5,r/3,0,a=(2*i+k++%2-t)%16*.393,a))i=k/98|0,y=k%98/49-1
x.stroke()

Apr 9 2019 12:06 AM UTC

}// 139/140

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Single stroke beach ball sketch

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joeytwiddle

remix of d/12994 by u/KilledByAPixel

function u(t) {

x.textAlign='center';for(X=W=300;X--;)x.font=W*(1+S(X+t))+"px'",x.fillStyle=R(99*(1+S(X*X+t*(X%5))),0,0,1),x.fillText("♥",X%16*150,99*X/16)

Apr 6 2019 8:17 AM UTC

}// 139/140

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Love comes and goes 💕

u/joeytwiddle

#heavy Performs ok in Firefox if you wait for font sizes to cache
u/KilledByAPixel

awesome, much better then the original!

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rodrigo.siqueira

remix of d/12959 by u/rodrigo.siqueira

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(var i=4e3;i=i-1;){
X=S(i)+S(K=i*.88)/2+2*S(F=2*i+t)
Y=C(i)+C(K)/2-2*C(F)
x.clearRect(960+X*130,550+Y*130,6,6)
}

Apr 6 2019 2:00 AM UTC

}// 139/140

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The Trefoil Knot. Created using a parametric equation from knot theory.

u/Qwitter

I like how the projected crossings allow you to view the height ambiguously: then, I can see this knot as not being knotted at whim.

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username

remix of d/12704 by u/katkip

function u(t) {

x.globalAlpha=.1
x.fillRect(0,0,2e3,2e3)
r=Math.random
for(i=899;i--;)X=r()*1910,Y=r()*1070,S(-(Y/4^X/4)/42+t*2)<S(t)?x.clearRect(X,Y,9,9):0

Apr 5 2019 7:20 PM UTC

}// 140/140

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uncompressed, I guess. Actually, it is probably really bad but I just did it in a minute.

u/katkip

Thx

dwitter.net | aleamb (77717)