Dweets awesomed by u/danny@hille.dk

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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danny@hille.dk

remix of d/20340 by u/danny@hille.dk

function u(t) {

for(X=60;X--;)for(Y=34;Y--;)x.fillStyle=R(o=199*(C(t+Y/4)+S(t+X/9+C(Y/(4+C(t)+S(X/9+Y/6))))),o,o*C(C(X+t)+C(Y))),x.fillRect(X*36,Y*36,36,36)

Oct 21 2020 5:12 PM UTC

}// 140/140

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let's plat 8-bit :-)

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danny@hille.dk

remix of d/20330 by u/neimad

function u(t) {

for(c.width=X=60;X--;)for(Y=34;Y--;)x.fillStyle=R(o=99*(C(t+Y/4)+S(t+X/9+C(Y/(4+C(t)+S(X/9+Y/6))))),o,o*C(C(X+t)+C(Y))),x.fillRect(X,Y,1,1)

Oct 21 2020 5:09 PM UTC

}// 139/140

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let's play

u/danny@hille.dk

hi res version -> http://glslsandbox.com/e#68685.0

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ciaccodavide

remix of d/9083 by u/katkip

function u(t) {

F=n=>((T(n/11.17))%6-1<3);x.drawImage(c,0,l=t);for(j=1214;j--;)x.fillStyle=F(j^t*60)?"#000":"#fff",x.fillRect(j*l,0,l,l)

Oct 21 2020 9:56 AM UTC

}// 120/140

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Time-bent Square Universe

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mark.knol

function u(t) {

for(i=0,w=c.width,T=53;i<T;++i)r=t+i/T*Math.PI,x.fillStyle=R(128+C(r)*128,i*3,0,.03),x.fillRect(w/2+w/2*S(r),400+C(r+t)*400,S(r*4)*100,200)

Oct 21 2020 8:03 AM UTC

}// 139/140

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Almost fluid

u/Xen

nice!

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neimad

remix of d/20327 by u/danny@hille.dk

function u(t) {

for(m=Math,c.width=X=99;X--;)for(Y=66;Y--;)a=T(X,Y),x.fillStyle=R(S(([m.hypot,C,S,T][(t^2)&3](X-t,Y-30)/-3+t)*2)*Y*X),x.fillRect(X,Y,1,1)

Oct 21 2020 4:30 AM UTC

}// 138/140

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danny@hille.dk

function u(t) {

for(m=Math,c.width=X=99;X--;)for(Y=66;Y--;)a=m.atan2(X-50,Y-30),x.fillStyle=R(X,S((a+S(m.hypot(X-50,Y-30)/-13+t))*5)*99),x.fillRect(X,Y,1,1)

Oct 20 2020 11:36 PM UTC

}// 140/140

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wonky spiral

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danny@hille.dk

remix of d/20235 by u/Xen

function u(t) {

eval(unescape(escape`睩瑨⡸⥦潲⡦楬汓瑹汥㵒⠹ⰰⰹⰮ㈩ⱦ楬汒散琨〬〬眽㉥㌬栽眩Ɽ牡睉浡来⡣Ⱝ㌲Ⱐⴱ㠬眫㘴ⱨⰰⰰⱷⱨ⤬椽㤹㬭⵩㭦楬汒散琨匨椩⩳⬱攳ⱃ⡩⤪猫㔰〬㤬㤩⥦楬汓瑹汥㵒⡳㴹㤪⡓⠳⩩ⵓ⡴⼹⤪㌹⤪匨琯㌩⬴⤩`.replace(/u(..)/g,"$1%")))

Oct 20 2020 10:33 PM UTC

}// 140/140

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play back...

u/Xen

nice

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ciaccodavide

function u(t) {

j=100
while(j-->0){k=100
while(k-->0){x.fillStyle=R((1-j)*S(t)+k*C(t+3),k*S(t),j*C(t)+k*S(t))
x.fillRect(j*19.2,k*10.8,19.2,10.8)}}

Oct 20 2020 10:23 PM UTC

}// 131/140

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From Dusk Till Down

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Xen

remix of d/16490 by u/Xen

function u(t) {

for(i=2e3;i--;x.fillRect(i,0,1,9))x.fillStyle=`hsl(${i+S(i+t*t)*199},69%,50%)`;x.drawImage(c,0,9)

Oct 20 2020 9:07 PM UTC

}// 97/140

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test

u/danny@hille.dk

Nice

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rodrigo.siqueira

remix of d/20301 by u/rodrigo.siqueira

function u(t) {

f=(X,Y,n=0)=>X*X>4?n:f(2*X*Y-.7,T(Y*Y-X*X),n+1)
for(i=w=2e3;i--;x.fillRect(i,t*60,1,火))
x.fillStyle=R(火=f(i/w,t/28-.1)**1.6,火/6)

Oct 20 2020 12:48 PM UTC

}// 128/140

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Spiral of Fire (chinese dragon skin) #fractal #spiral

u/lionleaf

#waitforit This is insane! Super cool
u/Parasolian

Very nice. How to do this? https://jljulienleonard.wordpress.com/
u/rodrigo.siqueira

#dragon

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