Dweets awesomed by u/Tesseract

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: #ScaryMovies

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ArthurThuczsec

remix of d/23367 by u/rodrigo.siqueira

function u(t) {

for(x.drawImage(c,-40,-15,i=2e3,1111);i--;x.fillStyle=R(t*t%i,S(i+t/9)*i,S(i)*i))x.fillRect(960+C(z=t*i)*i,540+S(z)*i,2,3)

Jul 22 2021 2:26 PM UTC

}// 122/140

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Beyonder

u/andrea270872

warp speed! Very cool.
u/joeytwiddle

That works very well. A highly effective effect.

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mrfoogles

remix of d/22673 by u/lerc

function u(t) {

for(c.width=i=h=960;i-->0;){
n=C(i+t);q=S(i/152)
n>0?0:x.fillRect((i*h/2-i*i)**.5*S(i+t*S(t))+h/2,i,n*n*9*q,9*(q**.3))
}

May 3 2021 5:03 PM UTC

}// 120/140

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Pascal

remix of d/22362 by u/BackendForth

function u(t) {

c.width|=w=480;for(j=2;j--;)for(i=k=300;i--;x.fillRect(w+w*X/Z+w*j*2+Z*12*j,w-Y/Z*w,s=k/Z**2,s))X=3*C(U=i+t)+C(V=i*i),Y=S(i)+S(V)+1,Z=S(U)-5

May 1 2021 1:43 PM UTC

}// 140/140

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#stereograph #d3 donut, cross your eyes for a 3D effect

Show more comments…
u/erin

so cool
u/BackendForth

Nice!
u/magna

Nice! The z is inverted for me...
u/tomxor

Neat. Magna, are you uncrossing your eyes by any chance? :P (i.e making your eyes further apart)
u/magna

u/tomxor yeah! I've gotten used to relaxing my eyes and looking "afar", from the way SIRDS normally work. I don't I can cross my eyes without looking at something actually close to my eyes. I suspect most people are more comfortable with relaxing their eyes than crossing them...
u/smtsjhr

so fun!
u/joeytwiddle

If you are a person like magna, change: fillRect(w to fillRect(3*w and +w*j to -w*j

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Xor

function u(t) {

x.fillRect(t*60,0,t/32,1920)

Apr 30 2021 8:17 PM UTC

}// 28/140

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Gradient in 28 bytes

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Xor

function u(t) {

x.fillRect(960,r=540,C(t)*r,S(t)*r)

Apr 29 2021 9:38 PM UTC

}// 35/140

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Drawing a circle in 33 bytes

u/KilledByAPixel

#circlechallenge
u/New_Core

👍 the real challenge would be to beat the size of normal way to do it ( <30 bytes, same size centerd).
u/Xor

What's the normal way?
u/New_Core

well, I was thinking of arc as normal way. x.fill(x.arc(960,540,540,1,7)) (using arc is not the challenge,)

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Xor

function u(t) {

for(i=w=1920;i--;)d=t*60*w+i,a=d%w,b=(d-a)/w,g=1.5+((a*a+b*b)/w-a-b)/w*4,x.fillRect(a,b,g>0?g**.3:C(a*g/90+S(b/79))*S(b/99+S(a/70))/8,1)

Apr 29 2021 4:44 AM UTC

}// 136/140

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Moonset

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Agnes

function u(t) {

for(l=t?l:0,q=c.width+=0;--q;Q=t?Q+`l ${e} ${f}`:"M 960 540")e=3*S(a=l*t*q),f=3*C(a),l+=(e*e+f*f)**.5;x.stroke(new Path2D(Q))

Apr 24 2021 10:33 AM UTC

}// 125/140

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Seahorse pattern (performance warning)

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taupelink

remix of d/22467 by u/taupelink

function u(t) {

for(i=k=540;i--;x.fillRect(i*X,2*k-h*p*Y,q*20/t,p*20/t))f=i*t,X=f*f%9,Y=X*f%7,h=k*S(S(p=Y*C(X))%T(q=X*S(p))*Y),x.fillStyle=R(h,h*p,h*q,q/h)

Apr 15 2021 12:20 AM UTC

}// 139/140

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d/22502

u/magna

misty city

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KilledByAPixel

remix of d/22480 by u/KilledByAPixel

function u(t) {

with(x)for(i=h=c.height|=0;i--;fill(arc(X=i*(i+t)%3e3-600,C(i)*h,i?h/i:1e4,0,7)))beginPath(globalCompositeOperation='xor')

Apr 14 2021 11:59 PM UTC

}// 122/140

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Backspace 🌒

u/sigveseb

noice!

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mrfoogles

remix of d/22306 by u/Xen

function u(t) {

w=c.width=1920
x.globalCompositeOperation='xor'
x.fillRect(0,0,w,w)
for(i=0;i<100;i++)x.fillRect(S(t+i)*w/2,C(t+i)*w/2,100,100)

Apr 2 2021 9:37 PM UTC

}// 127/140

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Ferris Wheel

u/Xen

Welcome to the dwitter family!
u/Xen

also bonus points for your first dweet being a remix of mine and on my birthday!!

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