Dweets by u/primo

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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primo

remix of d/23998 by u/KilledByAPixel

function u(t) {

for(i=c.width|=0;i--;)x.arc(960+S(z=i/40-t*6)*40,540+C(z)*40,i,0,9)
x.stroke()

Oct 5 2021 7:33 AM UTC

}// 78/140

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Moiré Spiral

u/KilledByAPixel

nice!

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primo

function u(t) {

D=new ImageData(c.width=w=568,j=320)
for(a=D.data;j--;)for(i=w;i--;a[o|3]=255)a[o=j*w+i<<2]=(2+S(i/j+t*8))*85
x.putImageData(D,0,0)

Oct 4 2021 10:37 AM UTC

}// 131/140

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red silk

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primo

function u(t) {

eval(unescape(escape`𡀽𫡥𭰠𢑭𨑧𩑄𨑴𨐨𨰮𭱩𩁴𪀽𭰽𝐶𞀬𪠽𪀽𝰴𝀩𒡦𫱲𚁡👄𛡤𨑴𨐻𪀫𪠭𛐻𚑦𫱲𚁩👷𛰲𞱩𞱡𦱯🐭𛑩𛑷𛰲𛑾𚀱𝠵𛑪𛰴𛐳𜠪𤰨𭐽𮠯𜐶𛑴𚠸𚐩𚡷🀼𜡼𜱝👡𦱯𛐸𚡩𧐽𜐲𞀭𝐷𚡓𚁵𚐭𪠪𜰸𛱺𚡃𚁵𚐩𮠽𚁩𚡩𛰴𚱪𚡪𛰹𚐪𚠮𝐊𮀮𬁵𭁉𫑡𩱥𡁡𭁡𚁄𛀰𛀰𚐠`.replace(/uD./g,'')))

Oct 3 2021 7:46 PM UTC

}// 140/140

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#sine

Show more comments…
u/pavel

Damn thats smooth
u/primo

I spent a while trying to balance performance and quality, ultimately deciding to err on the side of quality, because I thought it would age better that way ;)
u/rep_movsd

Nice
u/primo

Performance boost: eval(unescape(escape𮀮𬁵𭁉𫑡𩱥𡁡𭁡𚁄👴🱄𞡮𩑷𘁉𫑡𩱥𡁡𭁡𚁣𛡷𪑤𭁨👷🐵𝠸𛁷𚐬𜀬𜀩𒡡👄𛡤𨑴𨐊𩡯𬠨𪠽𪀽𝰴𜀻𪀫𪠭𛐻𚑦𫱲𚁩👷𛰲𞱩𞱡𦱯🐭𛑩𚠴𚰨𜰳𜰭𪠯𜠭𝠴𚡓𚁵👺𛰳𜠭𭀪𞀩𯀱𚐪𭰪𜠫𜱝👡𦱯𛐸𚡩𧐽𜐲𞀭𝐷𚡓𚁵𚐭𪠪𞀱𛱺𚡃𚁵𚐩𮠽𚁩𚡩𚱪𚡪𛰲𚐪𚠮𝐠.replace(/uD./g,'')))
u/primo

Uncompressed: x.putImageData(D=t?D:new ImageData(c.width=w=568,w),0,0) a=D.data for(j=h=740;h+j--;)for(i=w/2;i;a[o=--i*4+(333-j/2-64*S(u=z/32-t*8)|1)*w*2+3]=a[o-8*i]=128-57*S(u)-j*81/z*C(u))z=(i*i+j*j/2)**.5
u/primo

Place newlines were appropriate >_<;;

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