Dweets awesomed 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: #Opposites

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rodrigo.siqueira

remix of d/23641 by u/rodrigo.siqueira

function u(t) {

x.globalAlpha=.1/t
with(x)for(translate(t?0:m=960,t?0:540),i=m;i--;fillRect(i*S(z),m/9-t*i,6e4/m,5))fillStyle=R(z=t*5e4/i,z/9),rotate(z)

Aug 25 2021 11:02 PM UTC

}// 136/140

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Le soleil jaune #sun #expressionism

u/andrea270872

this is very artistic. Love it!
u/Disagreeable_Designs

very nice, hopefully as I slowly understand more elements of this I could eventually make something of that caliber.

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TGY

remix of d/3143 by u/nystrand

function u(t) {

with(x)for(translate(t?0:m=883,t?0:540),i=m;i--;fillRect(-m,i+z,3e3,8+z/22))fillStyle=R(z=m/((i*i-t*9)%m),z*2,z*6,rotate(-T+(T=i+S(t/9))))

Aug 23 2021 10:57 PM UTC

}// 138/140

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Do you remember original spider-man opening titles?

u/magna

Very cool remix!
u/andrea270872

nice and geometric :)
u/sigveseb

sweet!

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LimeLaser

function u(t) {

h=(o,y)=>255*[1,1-t%1,0,0,t%1,1][((t|0)+o)%6]**(1/2.2)**y
for(v=2;v--;){x.fillStyle=R(h(0,v),h(4,v),h(2,v))
x.fillRect(60*t|0,540*v,1,500)}

Aug 11 2021 6:40 PM UTC

}// 139/140

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Comparison of Linear and "sRGB" Rainbows

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LimeLaser

function u(t) {

for(i=540;i--;){x.fillStyle=`HSL(${2*(i+t)},99%,75%)`
x.fillRect(960+C(t/2+i/31)*i,540+S(t/5+i/31)*i,4,4)}

Aug 9 2021 5:45 AM UTC

}// 106/140

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Rotating Colors

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LimeLaser

function u(t) {

m="-.. .-- .. - - . .-." // DWITTER
r="replaceAll"
x.fillStyle=m[r]("-","xx ")[r](".","x ")[2*t|0]=="x"?"#fff":R()
x.fillRect(0,0,2e3,2e3)

Aug 9 2021 12:04 AM UTC

}// 138/140

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Morse Code Blinking (with customizable message)

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LimeLaser

function u(t) {

for(i=2304;i--;){y=i*t%256
b=i%192-95
r=i%256-127
x.fillStyle=R(y+1.475*r,y-.165*b-.572*r,y+1.881*b)
x.fillRect(i%64*30,(i/64|0)*30,30,30)}

Aug 7 2021 7:14 AM UTC

}// 139/140

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Approximate YCbCr BT.2020 Color Conversion Test

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LimeLaser

function u(t) {

y=2.2
f=60*t|0
v=f/480
e=f%2
r=(1-v)**(1/y)**e
g=v**(1/y)**e
x.fillStyle=`RGB(${255*r},${255*g},0)`
x.fillRect(4*f,540*e,8,500)

Jul 21 2021 11:45 PM UTC

}// 127/140

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Linear RGB vs "sRGB" Color Interpolation (with adjustable gamma, y)

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LimeLaser

function u(t) {

r=Math.random
x.fillStyle=`HSLA(${1e7*t%25e8+61e8},99%,50%,.2)`
for(i=6;i--;)x.fillRect(2e3*r(),2e3*r(),960*r()-480,540*r()-270)

Jul 12 2021 2:32 AM UTC

}// 128/140

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Three Hues (61e8 to 86e8 degrees)

u/LimeLaser

This seems to only be a phenomena on Firefox browsers: only the colors red, cyan, and black are shown.

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marmph

function u(t) {

for(n=16;n-->0;){r=n*99;x.fillStyle=R(r/4,r/8);m=S(t)*n*r/8+960;for(i=0;i<2e3;i+=40)x.fillRect(i,1e3,40,-Math.sqrt(r*r-(m-i)*(m-i)))}

May 2 2020 11:23 PM UTC

}// 133/140

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#cavern i tried

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LimeLaser

function u(t) {

for(i=768;i--;){p=(61*window.p+53)%2304+1||1
X=--p%64
Y=p/64|0
x.fillStyle=`HSL(${180*S(X)*S(Y)+t*t},75%,50%)`
x.fillRect(30*X,30*Y,30,30)}

Dec 26 2019 7:13 AM UTC

}// 139/140

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64x36 20FPS Random Sampling Renderer

u/LimeLaser

My attempt to implement per-pixel rendering at interactive rates. Using a Linear Congruential Generator, the pixels to render are chosen psuedo-randomly. It takes 3 frames to render all 2304 pixels, so the actual FPS is 20.

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