Dweets awesomed by u/Zeta2391

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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Zeta2391

function u(t) {

for(t*=5,h=4e3,i=g=0;i++<h;)x.fillStyle=`hsla(${t+i/4},8%,5%,.2)`,x.fillRect(t+Math.cos(i/3-t)*g,540+Math.sin(i/3-t)*g,4,4),g+=Math.sin(t)*1

May 12 2023 1:14 PM UTC

}// 140/140

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rodrigo.siqueira

remix of d/27499 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,w=2e3,w),i=1e4;i--;x.clearRect(960+S(p=T(i**5))/(Z=1/i/(t%3)+1/(t<3?i:480)),540+C(p)/Z,K=3*S(i)+1,K))x.globalAlpha=.1

May 10 2023 1:19 PM UTC

}// 136/140

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Star pulse #sphere

u/deobfuscate

I cannot explain with words how cool this is.
u/donbright

if i undersand it, the "twinkling" really adds alot. they aren't all the same size of white particle?
u/rodrigo.siqueira

The "twinkling" is given by the particle size (2 last parameters of x.clearRect). Pixel size is defined by 3*S(i)+1, so it's between "3+1" and "-3+1" and the "i" makes it almost random for each pixel. An extra twinkling effect could be made by adding "t", but I thought it would be too exaggerated. You can try by changing to: K=5*S(i+t*4)

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Zeta2391

remix of d/26569 by u/Kopissimooo

function u(t) {

c.width=1920
b=T(C(t))*10
h=1920+2*b
v=1080+2*b
for(i=0;i<99;i++)
x.fillRect(h*(1+S(i)+t*(2+S(i*i)))%h-b,(v/2*(1+t*S(i**3)))%v-b,b,b)

Dec 7 2022 8:00 PM UTC

}// 133/140

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Zeta2391

function u(t) {

for(i=0;i<1920;i+=10)for(j=0;j<1080;j+=10){x.fillStyle=R(S(t)*255,C(t)*255,T(t)*255,1);x.fillRect(i,j,3,3);}

Dec 7 2022 1:29 PM UTC

}// 108/140

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Colorful

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Zeta2391

function u(t) {

c.width=1920
for(i=0;i<t*1.001;i++)
x.fillRect(100+i*100+S(C(t))*100,200,50+t,100*t)

Dec 7 2022 2:15 AM UTC

}// 84/140

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