Dweets awesomed by u/marmph

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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New_Core

function u(t) {

with(x)for(i=80;i--;fill())beginPath(),arc(960+i*5*S(i+t),600,i*20,a=2.6+.2*S(i/9+t),a+4.2),fillStyle=R(0,i*5,i*6)

May 2 2020 3:27 PM UTC

}// 114/140

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water #cavern

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pavel

remix of d/11930 by u/pavel

function u(t) {

with(x)for(i=-6*t%1;i++<66;fill())for(beginPath(fillStyle=R(8*i,4*i),j=36);--j;arc(960,h+h*S(3*t)**2/i,h/i*(9+C(~~i+6*t^j)),b=9+j/9,b))h=777

May 2 2020 4:35 AM UTC

}// 140/140

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Walking through a #cavern

Show more comments…
u/KilledByAPixel

🤯 genius
u/KilledByAPixel

Looped! https://twitter.com/KilledByAPixel/status/12…
u/sigveseb

Wooow sweet!
u/aleamb

yeah!
u/sigveseb

Really nice colors
u/jick

Holy cow, wow!
u/Xen

sexy!
u/katkip

aannd we have a winner!
u/KilledByAPixel

https://www.reddit.com/r/perfectloops/commen…
u/pavel

the gif is very blurry
u/KilledByAPixel

HD gif for you - https://www.dropbox.com/s/u3wbakb6e4sm00y/pa…
u/Qwitter

Wow!
u/vain

Who needs longer shaders? ;-) Real DemoScene feeling

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LimeLaser

function u(t) {

for(i=2304;i--;){X=i%64;Y=i/64|0
x.fillStyle=`HSL(${ 72*(X%Y|3*t) },99%,50%)`
x.fillRect(30*X,30*Y,30,30)}

Nov 15 2019 11:38 PM UTC

}// 106/140

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Woah I Tried To Make The Graphics Render But I Think Something Went Wrong

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LimeLaser

function u(t) {

X=o=>960+500*C(t+o)
Y=o=>540+500*S(t+o)
x.beginPath()
x.moveTo(X(1),Y(2))
x.bezierCurveTo(X(4),Y(8),X(16),Y(32),X(64),Y(128))
x.stroke()

Sep 1 2019 8:31 AM UTC

}// 136/140

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Curved Geometry Drawer

u/LimeLaser

This uses the bezierCurveTo method with different values to see what shapes it can draw.
u/marmph

slap a few sines and cosines together and BAM ART

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LimeLaser

function u(t) {

x.beginPath(s=500,d=2)
p=[[C(9.1*t),S(t),S(9.1*t)+d],[0,S(t),d]]
p.map(v=>x.lineTo(960+s*v[0]/v[2],540-s*v[1]/v[2]))
x.stroke()

Aug 29 2019 4:08 AM UTC

}// 127/140

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3D Spiral (Pipe Cleaner)

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sigveseb

remix of d/271 by u/3bl3gamer

function u(t) {

W=c.width=255;for(i=9<<12;a=i&W,b=i>>8,n=b-45,m=a-99,i--;x.fillRect(a,b,A=1/(((t+a/n)%2)^b/n),A))n*=(B=(W*S(t*29+n/5)+m*m+n*n)/5e3)<1?C(B):1

Feb 24 2017 12:35 AM UTC

}// 140/140

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Based on some of 3b3lgamer's stuff (remix link got broken).

Show more comments…
u/donbright

dude you are the king,.. O M GOSH
u/Renaud___

Fantastic :S
u/lionleaf

Fixed the remix link for ya :)
u/nashcat

holy sh*t
u/Kalanchoe

H...how? This is so impressive.
u/magna

Needs more music.
u/xem

inhuman
u/donbright

still the one that blew my mind the most.
u/lionleaf

#wobble #wobbly #water #mirror #checkerboard #refraction #sphere
u/Xaotic

wtf
u/firegodjr

#raytracing #best
u/stiaje

#witchcraft
u/sigveseb

This one used to be fast, wonder why it is slow now?

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