Dweets by u/f8f82804

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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f8f82804

remix of d/10804 by u/f8f82804

function u(t) {

c.width=480;i=0;for(y of'0111111210121012')x.lineTo(240+y%2*S(p=t-2.5*'0012340010203040'[i++])*(z=400/(3+y%2*C(p))),y*z);x.stroke()

Oct 31 2018 8:28 PM UTC

}// 131/140

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#pentagram -- #d3 #perspective #wireframe

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f8f82804

remix of d/10800 by u/Xen

function u(t) {

c.width|=i=0;for(y of'0111111210121012')x.lineTo(1e3+y%2*S(p=t-2.5*'0012340010203040'[i++])*(z=1600/(3+y%2*C(p))),y*z);x.fill('evenodd')

Oct 31 2018 8:26 PM UTC

}// 136/140

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#pentagram -- technically a pentagrammic star dipyramid

u/f8f82804

#d3 #perspective

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f8f82804

remix of d/10797 by u/f8f82804

function u(t) {

c.width=480;i=0;for(y of'0235320235320235')x.lineTo(240+2*(r=y%5?1:0)*S(p=t+.628*'0010320450760890'[i++])*(z=120/(3+r*C(p))),y*z);x.stroke()

Oct 31 2018 7:10 PM UTC

}// 140/140

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#draft dweet of a #wireframe #d3 #perspective #decahedron -- in this case it's a #pentagonal #trapezohedron (#d10)

u/f8f82804

making this work as intended in the size limit will require coming up with a more clever way of iterating over the vertices, either via a formula or a more clever encoding of their coordinates

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f8f82804

remix of d/10796 by u/f8f82804

function u(t) {

c.width=480;i=0;for(y of'0111111210121012')x.lineTo(240+y%2*S(p=t+1.257*'0012340010203040'[i++])*(z=400/(3+y%2*C(p))),y*z);x.stroke()

Oct 31 2018 6:34 PM UTC

}// 133/140

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#d3 #perspective #decahedron #wireframe -- this is a #pentagonal #bipyramid

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f8f82804

remix of d/10686 by u/f8f82804

function u(t) {

c.width^=i=0;for(y of'0111111210121012')x.lineTo(960+y%2*S(p=t+1.257*'0012340010203040'[i++])*(z=1600/(3+y%2*C(p))),y*z);x.fill('evenodd')

Oct 31 2018 6:32 PM UTC

}// 138/140

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#d3 #perspective #decahedron -- this is a #pentagonal #bipyramid

u/f8f82804

thanks to u/pavel for the suggestions that made this possible!

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f8f82804

remix of d/10286 by u/f8f82804

function u(t) {

with(x)for(s=1e3,j=5;--j;)for(i=7;shadowBlur=i*i--;fillRect(3*s*Math.random()-s,j*t%1*s,s,6))shadowColor=`hsla(${t+T(t)}turn 85%50%/.3`

Oct 25 2018 9:57 PM UTC

}// 135/140

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broken #tv #glow

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f8f82804

remix of d/10688 by u/yonatan

function u(t) {

(t?j:c)[t?'outerHTML':'innerHTML']=h=`<svg id=j><filter id=f><feTurbulence baseFrequency=${-.012*(T(t)+S(t/3))}>`
c.style.filter='url(#f)'

Oct 25 2018 6:20 PM UTC

}// 138/140

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【ｆｉｌｔｅｒｗｏｒｌｄ】

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f8f82804

remix of d/10658 by u/f8f82804

function u(t) {

for(c.width|=i=13;i--;x.lineTo(967+(y-1?0:1e3*S(p)/z),1e3*y/z))y='011112101211'[i],z=y-1?3:3+C(p=t+1.57*'012340302014'[i]);x.fill('evenodd')

Oct 25 2018 5:41 PM UTC

}// 140/140

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#d3 #perspective #octahedron

u/pavel

Here is 12 characters saved: c.width^=i=0;for(y of'111121012110')x.lineTo(960+y%2*S(p=t+1.6*'123403020140'[i++])*(z=1600/(3+y%2*C(p))),y*z);x.fill('evenodd')
u/f8f82804

using 1.6 to approximate Math.PI/2 is OK, but you should change all the 4s to 0s in the second data string, just to minimze the aggregate angular error. I used 4 for clarity, because 1.57 is accurate enough that the error is hard to notice. With 1.6 you can notice that one edge is longer than the others. c.width^=i=0;for(y of'111121012110')x.lineTo(960+y%2*S(p=t+1.6*'123003020100'[i++])*(z=1600/(3+y%2*C(p))),y*z);x.fill('evenodd')

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f8f82804

function u(t) {

c.width=480;for(i=14;i--;x.lineTo(240+(y-1?0:360*S(p)/z),360*y/z))y='0111121012110'[i],z=y-1?3:3+C(p=t+1.57*'0123403020140'[i]);x.stroke()

Oct 24 2018 11:10 PM UTC

}// 138/140

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#d3 #perspective #octahedron -- thanks to u/prplz for golf help

u/f8f82804

#wireframe

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f8f82804

remix of d/10512 by u/f8f82804

function u(t) {

with(x){beginPath();fillStyle='#fff3';for(i=17;i--;lineTo(960+a*S(p)/.7,540+(i&4?a:-a)))a=960/(3+C(p=t+1.57*(i-(i>>2))));fill();stroke();}

Oct 17 2018 3:05 AM UTC

}// 138/140

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#perspective #d3 #cube #fullhd

u/f8f82804

#wireframe

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