Top dweets by u/mxfh

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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mxfh

remix of d/676 by u/mxfh

function u(t) {

for(d=new ImageData(i=w=c.width=256,w),I=-1;i--;)for(j=w;j--;)d.data[I+=4]=(i-j&i+j)*t%w
x.putImageData(d,0,0)

Jul 28 2021 4:55 PM UTC

}// 110/140

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-19 new space for stuff.

u/Xen

I=3?
u/mxfh

@Xen if you can live with that static line on the left then.

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mxfh

function u(t) {

c.width=512
x.scale(s=16,s);x.fillText("🗺️",-1,8)
for(X=s;X--;)for(Y=s;Y--;)x.drawImage(c,(X+t)*8%125,Y*7,10,8,20+(X-7.5)*S(Y/5)*1.4,Y,2,1)

Mar 22 2017 4:28 PM UTC

}// 139/140

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crappy emoji world map reprojection

Show more comments…
u/aemkei

Nice! We need to merge that with https://www.dwitter.net/d/2249
u/sfz

pretty sweet
u/codeslaw

clever!
u/iverjo

#earth
u/katkip

clever
u/mxfh

#map #geo #projection #raster

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mxfh

remix of d/2230 by u/mxfh

function u(t) {

i=t*60
x.setTransform(64,r=i>15,b=i>7,64,w=900,h=519)
x.rotate(i*.7854)
x.fillStyle=`#${b?r?w:"FFF":h}`
x.fillRect(-3+r,0,b?r?4:6:w,w)

Mar 20 2017 9:51 AM UTC

}// 134/140

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golfpunk brexit edition

u/iverjo

#flag

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mxfh

remix of d/683 by u/mxfh

function u(t) {

r=480;c.width=r*4;λ=0;for(φ=a=Math.PI/2;φ>-a;φ-=1/r){λ+=a;x.lineTo(C(φ)*S(λ-t)*r+2*r,(C(t)*S(φ)-S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Feb 22 2017 1:12 PM UTC

}// 129/140

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mxfh

remix of d/22389 by u/mxfh

function u(t) {

d=x.getImageData(o=-1,0,w=c.width=256,h=128)
for(i=b=64;i>-b;i--)for(j=h;j>-h;j--)d.data[o+=4]=((i*j)%~(T(t)*b-i))**8
x.putImageData(d,0,0)

Apr 11 2021 1:31 AM UTC

}// 139/140

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u/EliteDaMyth

for(d=x.getImageData(o=-1,0,w=c.width=256,h=128),i=b=64;i>-b;i--)for(j=h;j>-h;j--)d.data[o+=4]=(i*j%~(T(t)*b-i))**8 x.putImageData(d,0,0) 137
u/EliteDaMyth

for(d=x.getImageData(o=-1,0,w=c.width=256,h=128),i=b=64;i-->-b;)for(j=h;j>-h;j--)d.data[o+=4]=(i*j%~(T(t)*b-i))**8 x.putImageData(d,0,0) 136
u/mxfh

for(d=x.getImageData(o=3,b=i=64,w=c.width=256,h=128);i-->-b;)for(j=h;j-->-h;)d.data[o+=4]=(i*j%~(T(t)*b-i))**8 x.putImageData(d,0,0) 132

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mxfh

function u(t) {

c.width|=o=w=800
x.font="9em Trebuchet MS";[v=S(t)*7,70,78+v/3,49-v,74,42,75].forEach((v,i)=>x.fillText("kerning"[i],o+=v,w))

Apr 5 2017 9:44 AM UTC

}// 125/140

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#text #kerning

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mxfh

remix of d/2390 by u/mxfh

function u(t) {

s='l280 485h-560'
x.fill(new Path2D('M940 55'+s+s+'m840-485'+s))

Apr 2 2017 8:18 AM UTC

}// 64/140

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a bit more brute force; but hey: Triforce in 4³ bytes

u/cantelope

incredible
u/magna

HAX!
u/mxfh

#minimalistic #logo #path2d #64 #triangles #triforce
u/mxfh

#64B

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mxfh

remix of d/23558 by u/mxfh

function u(t) {

I=new ImageData(w=2048,w)
b=new Int32Array(I.data.buffer)
for(i=4e6;i--;X=i%w-960,b[i]=X*X+Y*Y+S(t)/Y*i<<14)Y=i/w-540
x.putImageData(I,0,0)

Aug 17 2021 3:33 PM UTC

}// 139/140

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Event Horizon Camera

u/mxfh

#time

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mxfh

remix of d/2759 by u/magna

function u(t) {

x.globalCompositeOperation='source-out';s=2**.5;H=500;d=(S(t/3)+1)/2*H;w=H-d;x.beginPath();x.arc(C(t)*d+H*2,S(t)*d+H,w,0,7);x.fill()

May 23 2017 9:06 PM UTC

}// 132/140

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u/magna

Whoa! I had no idea about the potential effect of "source-out"...
u/mxfh

me neither ;)
u/mxfh

#arc #compositing
u/mxfh

#tunnel
u/rafroller

#moire #moiré

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mxfh

remix of d/2113 by u/mxfh

function u(t) {

x.setTransform(f=60,0,0,f,9*f,9*f);i=~~t%8;r=i<4;x.rotate(Math.PI/2*i);x.fillStyle=r?'#D22630':'#003087';x.fillRect(l=r?-1:2,l,r?2:f,f)

Mar 14 2017 3:13 AM UTC

}// 135/140

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http://www.norden.org/en/fakta-om-norden-1/t…

u/iverjo

#flag

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