New #knot dweets

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: #ScaryMovies

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rodrigo.siqueira

remix of d/21211 by u/ntsutae

function u(t) {

for(c.width|=Y=1e3;Y--;x.fillStyle=R(S(Y/55+9)*150))
x.fillRect(1e3+S(Y/99+t*3)/(Y+400)*4e5,800-Y/2+C(Y/66+t*5)*216,9+Y/70,5+Y/70)

Jan 11 2021 3:08 PM UTC

}// 130/140

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Self-knot #knot

u/Xen

Smooth!

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rodrigo.siqueira

remix of d/19374 by u/rodrigo.siqueira

function u(t) {

for(var i=4e3;i--;f(960,570,340,t*i))f=(X,Y,s,r)=>s>90?f(X-s*S(r),Y-s*C(r),s/2,-r/2+S(i+t)/2):x.fillRect(X,Y,t<7,.3)

Jul 11 2020 1:43 PM UTC

}// 116/140

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#trefoil #knot ribbon

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pavel

remix of d/10527 by u/yonatan

function u(t) {

for(i=c.width|=f=g=>2*g(2*i/3)+g(-i/3),w=960;Z=S(--i);x.arc(w+w*(Z*S(t)+f(S)*C(t))/z,540+w*f(C)/z,w/z/z,0,7))z=7+f(S)*S(t)-Z*C(t);x.stroke()

May 9 2019 10:59 PM UTC

}// 140/140

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#trefoil #knot

u/pavel

Play around with f(g) to generate different shapes.
u/KilledByAPixel

trefoil knot is best knot, awesome work.
u/katkip

g=>2*g(5*i/9)+g(i/9) is cute
u/iverjo

Very good in fullscreen

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Xen

remix of d/13704 by u/rodrigo.siqueira

function u(t) {

for(c.width&=i=2e3,w=960;i--;x.fillRect(w+w*X/Z,w*Y/Z,Z,Z))
X=S(i-t)+2*S(2*i)+C(i**2),Y=C(i-t)-2*C(2*i)+S(i**2)-4,Z=S(3*i+t*9)-9

May 9 2019 7:56 PM UTC

}// 128/140

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Had to have a play

u/rodrigo.siqueira

#trefoil #knot

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rodrigo.siqueira

remix of d/13039 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(var i=6e3,w=960;i--;x.fillRect(w+w*X/Z,w*Y/Z,4,4))
X=S(i-t)+3*S(2*i)+C(i**2)/2,
Y=C(i-t)-2*C(2*i)+S(i**2)-4,
Z=S(3*i+t*4)-8

May 9 2019 7:46 PM UTC

}// 138/140

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Animated Trefoil Knot #d3

u/rodrigo.siqueira

#Trefoil #knot

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yonatan

function u(t) {

for(k=c.width=314;T=k--/5;x.arc(99+(Y*S(t)+X*C(t))*r,80+(2*C(2*T)+C(T))*r,r/2,0,7))X=2*S(2*T)-S(T),Y=S(3*T),r=(9+X*S(t)-Y*C(t))*2
x.stroke()

Oct 17 2018 1:48 PM UTC

}// 140/140

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#trefoil #knot

u/katkip

this looks nice
u/tomxor

Neat knot! looking forward to playing with this one.
u/iverjo

Hot or knot?

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joeytwiddle

remix of d/9734 by u/yonatan

function u(t) {

eval(unescape(escape`挮獴祬攮晩汴敲㴧楮癥牴⠱✻景爨挮睩摴栽欽㌱㘻欭ⴻ砮晩汬剥捴⠱㔷⭘⩃⡴⤫搪匨琩ⰸ㘫爪䌨㐪吩ⱳ㵫⼵〬猩⥔㵫⼴〫琬砮晩汬却祬攽刨爽㐰⬲〪匨吪㌩ⱘ㵲⩓⠴⩔⤬搽㘰⩃⡔⨳⤬⸷⬨堪匨琩ⵤ⩃⡴⤩⼹㤩`.replace(/u(..)/g,"$1%")))

Sep 11 2018 4:45 AM UTC

}// 139/140

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#knot quite a remix

u/joeytwiddle

The green and purple shades appeared accidentally when I put code inside R(_,_,_)
u/donbright

i can follow it,, really cool

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yonatan

function u(t) {

eval(unescape(escape`挮獴祬攮晩汴敲㴧楮癥牴⠱✻景爨挮睩摴栽欽㌶〻欭㴲㭸⹦楬汔數琨✫✬ㄸ〫唬㤹⭓⡰⤯倩⥘㵃⡰㵫⼱〫琩ⱙ㵃⡱㵫⨮〶⤯㈬唽太匨琩⭘⩃⡴⤬嘽堪匨琩ⵙ⩃⡴⤬唯㵐㴨ㄭ嘯㌩⼨㈫匨焩⤯㈵ⱸ⹧汯扡汁汰桡㴫⭖`.replace(/u(..)/g,"$1%")))

Sep 9 2018 10:33 PM UTC

}// 140/140

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https://twitter.com/beesandbombs/status/1037…

u/yonatan

Previous iterations by u/joeytwiddle, u/Xen and others on discord (general channel, starts around 7 Sep 2018)
u/yonatan

#beesandbombs
u/yonatan

c.style.filter='invert(1';for(c.width=k=360;k-=2;x.fillText('+',180+U,99+S(p)/P))X=C(p=k/10+t),Y=C(q=k*.06)/2,U=Y*S(t)+X*C(t),V=X*S(t)-Y*C(t),U/=P=(1-V/3)/(2+S(q))/25,x.globalAlpha=++V
u/donbright

is it one strand or two??
u/yonatan

one, it's a #pq_torus #knot

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