Dweets by u/DataMeta

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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DataMeta

remix of d/15839 by u/DataMeta

function u(t) {

s=C(t);c.style.background=R(g=s*255,g,g);if(t<3)for(i=1920;i--;)
x.fillStyle=R(l=i/7.5,l,l),x.fillRect(t*s>=0?1918-i:i,540-g,4,4)

Sep 29 2019 4:55 AM UTC

}// 129/140

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#gradient #illusion

u/katkip

nice
u/iverjo

#opticalillusion

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DataMeta

function u(t) {

c.style.background=R(g=S(t*1.5)*255,g,g);if(t<3)for(i=1920;i--;)
x.fillStyle=R(l=i/7.5,l,l),x.fillRect(i,540-C(t)*i/5,13,13)

Sep 28 2019 4:17 PM UTC

}// 124/140

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Had this laying around. Demonstrates the #illusion in d/15823. The triangle's #gradient remains unchanged.

u/DataMeta

The center of the base of the triangle doesn't exhibit the illusion strongly since there is a constant reference color near it and it is far from the changing background.
u/iverjo

#opticalillusion

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DataMeta

function u(t) {

r=Math.random,m=r(n=r(o=r(l=255)))
with(x)for(j=768;j--;beginPath(fill()))fillStyle=R(l*m,l*n,l*o,.1),
arc(64*(j%31),64*(j/31|0),r()*51,0,7)

Sep 6 2019 1:40 AM UTC

}// 140/140

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#psychedelic

u/taupelink

groovy!
u/DataMeta

haha ty

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DataMeta

remix of d/15509 by u/DataMeta

function u(t) {

c.style.background=R(0,96,192);if(t<3)for(i=2096;i--;)x.fillStyle=R(l=S(t)*i/7.5,l*.7,l*.4),x.fillRect(i-99,1080-C(S(t+i/270))*S(t)*i/6,7,7)

Aug 30 2019 5:31 PM UTC

}// 140/140

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Sand dunes

Show more comments…
u/katkip

#realistic
u/katkip

nice
u/KilledByAPixel

👍
u/metamero

cool!!
u/DataMeta

thanks!
u/DataMeta

blue martian dunes in a dust storm: c.style.background='#CBA486';if(t<3)for(i=2096;i--;)x.fillStyle=R(l=S(t)*i/20,l/.65,l/.5),x.fillRect(i-99,1080-C(S(t+i/270))*S(t)*i/6,7,7)
u/joeytwiddle

#landscape

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DataMeta

remix of d/15449 by u/DataMeta

function u(t) {

c.style.background=R();if(t<2)for(i=1920;i--;)x.fillStyle=R(l=S(t)*i/7,l,l),
x.fillRect(i,540+S(C(t+i/64+l/64))*S(t)*i/4,9,9)

Aug 24 2019 1:04 AM UTC

}// 125/140

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#d3 #shading #lighting

u/pasacaglia

Cool
u/Qwitter

bone paper!

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DataMeta

remix of d/15444 by u/DataMeta

function u(t) {

if(t++<8)for(i=2e3;i--;)Q=(h=i-960)*h/4e5-2,
x.fillStyle=R(l=t*i/18%232,S(t)*i/9,240-l),
x.fillRect(i+60,540+C(t+l/36)*l*Q,9,9)

Aug 18 2019 11:28 PM UTC

}// 127/140

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Smoothed curves, widened palette + golfed

u/DataMeta

#waitforit
u/joeytwiddle

It could be a colourful sea creature

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DataMeta

function u(t) {

if(t<8)for(i=2e3;i--;)Q=(h=i-960)*h/4.2e5-2,
x.fillStyle=R(l=t*i/18%224,S(t)*i/11,224-l),
x.fillRect(40+i,540+S(t-l/18)*l*Q,10,10)

Aug 18 2019 5:11 AM UTC

}// 130/140

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#waitforit

u/13thptr

stylish

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DataMeta

remix of d/12610 by u/ear7h

function u(t) {

w=960,h=540;for(i=0;i<70;i+=0.1)u=i*h/20,Q=(u-w)*(u-w)/4.2e5-1,
x.fillStyle=R(l=i^t*i%255,l,l),x.fillRect(u,h+S(t+i)*l*Q,d=9,9)

Aug 11 2019 5:18 AM UTC

}// 127/140

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u/magna

Sweet!

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DataMeta

function u(t) {

r=Math.random;d=r(e=r(f=r()));
for(i=255;i--;x.fillStyle=R(i*d,i*e,i*f,.009))
x.fillRect(960+(g=S(t)*i/.7),540+(h=C(t)*i/.7),-g*d,-h*e)

Aug 10 2019 4:22 PM UTC

}// 135/140

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on led-based screens it both blends to gray more, and displays more vibrant primary-adjacent colors than on lcd

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DataMeta

remix of d/15356 by u/DataMeta

function u(t) {

c.width=600;for(i=360;i-=8;)for(j=360;j-=8;)h=t*t**.4,
x.fillRect(122+i,j,g=((h^i)&(j^h))**.1*t%8,g)

Aug 9 2019 11:16 PM UTC

}// 100/140

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h=64+t*t**.4

u/rodrigo.siqueira

#sierpinski

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