Dweets by u/LimeLaser

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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LimeLaser

function u(t) {

x.fillStyle=R(0,240,0,.01)
x.fillRect(0,0,2e3,2e3)
x.fillStyle=R()
x.fillRect(951+800*C(t),531+400*S(t),18,18)
x.drawImage(c,16,9,1888,1062)

May 30 2019 11:54 PM UTC

}// 140/140

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Long, Recursive Chain

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LimeLaser

function u(t) {

r=m=>m*Math.random()|0
x.fillStyle=R(r(32)*8,r(64)*4,r(32)*8)
for(i=9;i--;)x.fillRect(r(32)*60,r(18)*60,50,50)

May 21 2019 5:01 AM UTC

}// 110/140

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High Color Pixels (R5G6B5)

u/donbright

hahaha awesome
u/donbright

these colors are wonderful

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LimeLaser

function u(t) {

r=v=>v*Math.random()
x.fillStyle=R(r(255),r(255),r(255),r(.6)+.2)
x.fillRect(r(1920),r(1080),960-r(1920),540-r(1080))

May 15 2019 2:06 AM UTC

}// 117/140

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Semi-Transparent Colored Squares

u/LimeLaser

I tried to get a decent rectangular-color-fill distribution by allowing negative widths and heights.
u/joeytwiddle

Ah nice approach, to avoid the top and left edges feeling lonely

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LimeLaser

function u(t) {

x.globalAlpha=0.01
x.fillRect(0,0,2e3,2e3)
for(i=9;i--;){
x.clearRect(30+1800*Math.sin((t+i)/Math.PI)**2,30+960*Math.cos(t+i)**2,60,60)
}

May 13 2019 4:42 AM UTC

}// 137/140

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Changing Paths

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LimeLaser

function u(t) {

r=Math.random
u=r()*32|0
v=r()*18|0
d=[0,2,3,1][(u%2)+2*(v%2)]/2-1
x.fillStyle=R(51*(u/5+d|0),51*(v/3+d|0))
x.fillRect(60*u,60*v,60,60)

Apr 28 2019 2:39 AM UTC

}// 135/140

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Ordered Dithering Of Red-Green Gradient

u/LimeLaser

Simulates a 6-bit-per-channel color scheme. The "d" variable represents an entry in a Bayer matrix; setting d=0 will show non-dithered 6-bit-per-channel gradient.

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LimeLaser

function u(t) {

var a=181;var _c=997;var m=1920*1080;var n=1000
i=t?i:0
while(--n){
i=(a*i+_c)%m
x.fillRect(i%1920|0,i/1920|0,1,1)
}

Apr 22 2019 6:15 AM UTC

}// 116/140

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Linear Congruential Generator Test (Fade To Black)

u/LimeLaser

This pseudo-random number generator picks n pixels to fill per frame. Feel free to try different a or _c values (see Hull-Dobell Theorem).

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LimeLaser

function u(t) {

x.globalAlpha=0.02
x.font="320pt courier"
r=50*S(t)
x.strokeText("DWITTER",50+r*C(t),600+r*S(t))

Apr 15 2019 5:52 AM UTC

}// 96/140

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X-Ray Courier Font

u/joeytwiddle

What's the prognosis, doc?
u/joeytwiddle

#text

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LimeLaser

function u(t) {

r=Math.random
p=r()+r()
a=6.28*r()
p=p>1?2-p:p
x.fillStyle=`HSL(${57.3*a},${100*p}%,50%)`
x.fillRect(955+500*p*C(a),535-500*p*S(a),11,11)

Apr 6 2019 9:24 PM UTC

}// 137/140

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Uniform Random Sampling Within A Circle

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LimeLaser

remix of d/12799 by u/Jezza

function u(t) {

x.globalAlpha=.025
x.fillRect(0,0,1920,1080)
for(i=45;--i;)
x.clearRect(960+320*C(i+t)+640*S(i-t)-25,540+540*S(i+t)-25,50,50)

Mar 22 2019 11:39 PM UTC

}// 125/140

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Venus Flytrap Trails

u/Jezza

So great!

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LimeLaser

function u(t) {

c.width|=0
r=Math.random
p=t?p.map(([i,j,u,v]=[2e3*r(),2e3*r(),2*r(),4*r()])=>[(i+u)%2e3,(j+v)%2e3,u,v,x.fillRect(i,j,8,8)]):[...Array(4e3)]

Mar 14 2019 5:42 AM UTC

}// 140/140

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Infinite Snowfall (Which Goes Right Because Modulo)

u/Jezza

Squeezed in some snow that floats left. ❄️❄️❄️ https://www.dwitter.net/d/12751

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