Dweets awesomed by u/robotman_

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: #Food

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DazeWare

function u(t) {

c.width=w=99
for(i=w*33;i--;x.fillRect(i%w,i/w*2,1,9))f=i%w+999*S(t*.05),n=T(0|(i/w+f^f-i/w)/(t*.7+6)),x.fillStyle=R((i)*i&n,n,(n&i)*i/n)

Oct 12 2025 9:13 AM UTC

}// 137/140

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u/tomxor

Nostalgiac for me :D I think I chose +t*60 to get rid of the juddering. That doesn't help with sin here, but I think the actual reason for judder is from round-up aliasing on the left side of i/w+f^f, so pre-flooring f seems to mostly eliminate it e.g 999*S(t*.05)|0

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KilledByAPixel

remix of d/34244 by u/KilledByAPixel

function u(t) {

for(r=500,i=1e4;i--;x.fillRect(960+r*X,540+r*Y,9,9))Z=i**.9%1,W=1-Z*Z,X=W*S(a=i*t),Y=W*C(a),x.fillStyle=R(v=(S(t)*Z-C(t)*X-Y/2)*400,v/2,30)

Oct 12 2025 3:27 AM UTC

}// 139/140

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Lit Sphere 🌔

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ximavus

function u(t) {

z=Math.random
x.fillStyle=R(z()*255,z()*255,z()*255)
x.fillRect(900+S(t*35)*t*t,540+C(t*35)*t*t,t*9,t*9)

Oct 11 2025 8:10 AM UTC

}// 104/140

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Color spiral

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ximavus

function u(t) {

onmousemove=e=>{X=e.x*3.4;Y=e.y*3.4}
x.fillStyle=R(X%255,Y%255,S(X+Y)*255)
for(i=6;i--;)x.fillRect(X+C(t*5+i)*50,Y+S(t*5+i)*50,9,9)

Oct 7 2025 6:29 PM UTC

}// 131/140

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Color paint

u/joeytwiddle

Pretty

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KilledByAPixel

remix of d/34244 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󪜽󜝥󝌻󪜭󛜻󦌪󠼨󭌩󛝗󚭓󚍴󚜾󜌦󙭸󛭣󫍥󨝲󤭥󨽴󚌹󝬰󚼴󝜰󚬨󦌪󤼨󭌩󚽗󚭃󚍴󚜩󛌵󝌰󚼴󝜰󚬨󦜪󠼨󨬩󛝚󚭓󚍢󚜩󛌶󛌶󚜩󦬽󪜯󜽥󜼭󜜬󬬽󚌱󛝚󚭚󚜪󚬮󝜬󦌽󬬪󠼨󨜽󪜪󚬳󛝴󚬲󚜬󦜽󬬪󤼨󨜩󛍗󟝓󚍢󟝴󛼳󚜪󦜫󠼨󨬩󚭚󛍸󛭦󪝬󫍒󩝣󭌨󪜭󞍥󜼬󜌬󛬲󛌲󩜳󚜻`.replace(/u../g,'')))

Aug 28 2025 1:50 AM UTC

}// 140/140

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Multi Axis Rotation 🔄

u/cantelope

also back-face culling? looks like

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KilledByAPixel

remix of d/34226 by u/KilledByAPixel

function u(t) {

with(x)for(i=99;--i;fillStyle=`hsl(${-i*t} 99%${i}%`)for(j=16;j--;fillRect(-T/2,T*S(i+i*t/T),T=4e3,5))t?rotate(Math.PI/8):translate(.62,.35)

Aug 22 2025 1:59 AM UTC

}// 140/140

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Kaleidoscopic 🌈

u/joeytwiddle

#kaleidoscope

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KilledByAPixel

remix of d/34225 by u/KilledByAPixel

function u(t) {

with(x)for(t||translate(960,540),j=6;j--;)for(i=95;i--;fillRect(-T/2,T*S(i+i*t/T),T=4e3,5))fillStyle=`hsl(${i*t} 99%${i}%`,rotate(Math.PI/3)

Aug 21 2025 8:52 PM UTC

}// 140/140

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Hypnotic Symmetry 👁️

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rodrigo.siqueira

remix of d/34213 by u/rodrigo.siqueira

function u(t) {

x.fillRect(0,0,k=2e3,k*!t)
for(i=k;i-->-k;x.fillRect(960+S(i/k*3)**3*(K=250+t*500*S(i*i+.5/t)**2),540+C(i/k*4)*K,t<3,t/2))x.fillStyle=R(k)

Aug 19 2025 3:59 PM UTC

}// 138/140

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Exploding black heart 🖤 #heart

u/jpthinker

Things have escalated quickly! lol. Love it

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KilledByAPixel

remix of d/32690 by u/tomxor

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󭼽󩌽󞜹󒭦󫽲󚍩󟜶󩜳󞽩󞽙󟬱󛝓󚍡󧭔󚜪󚬴󚬨󥌪󞜾󟬴󚝼󥌾󞜿󥌭󩌿󮌮󩭩󫍬󤭥󨽴󚌭󛝩󙝷󛍩󛽷󯌰󛌨󦌫󦜭󥌯󜬫󬜩󛼹󛍔󟝤󟜱󚽔󙜮󜜩󞭤󚬽󪌺󥌭󩌿󥌯󟝨󞬨󬜽󥌾󝽼󨜪󞜦󦜪󞜦󥌪󞜦󨜦󥌦󜼬󥌽󩌯󟝨󟜮󞜵󚜩󦌽󪜥󭼯󝜰󚭤󛝔󚼹󛍙󟝩󛼵󩜳󚭤󛝔󛼲󛍡󟝘󚽴󚬶`.replace(/u../g,'')))

Aug 14 2025 5:23 PM UTC

}// 140/140

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Townxor 🏙️

Show more comments…
u/tomxor

!
u/jellyedwards

wtf
u/cantelope

can someone check if this is allowed?
u/_louis

lol so cool! lo-fi effect
u/ximavus

dude
u/ximavus

awesome

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Agnes

remix of d/34201 by u/Agnes

function u(t) {

f=1e2;V=(t)=>1-.5/f+Math.random()/f;x.font="20cm A";t?x.setTransform(V(t),1-V(t),1-V(t),V(t),0,0)&x.drawImage(c,0,0):x.fillText("😂",400,800)

Aug 13 2025 3:33 PM UTC

}// 140/140

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Replica of a replica of a replica 2 #sequel

u/lewdev

Whoa... nightmare fuel
u/tomxor

Teletubbies on shrooms!
u/cantelope

lol

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