Top dweets by u/BriSeven

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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Current theme challenge: #Opposites

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BriSeven

function u(t) {

e=2e3;for(i=e;--i;)x.fillStyle=R((d=i%16*119)%256,d/1.4%256,d/7%256),m=i*t/100,n=10*i/200,x.fillRect(n*S(m)*30+1e3,n*C(m)*30+500,20,20)

Dec 23 2016 5:11 AM UTC

}// 135/140

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u/donbright

these colors are "lit" as the kids say
u/donbright

superb
u/joeytwiddle

really nice for a long watch

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BriSeven

remix of d/522 by u/BriSeven

function u(t) {

for(i=16;i--;)x.fillStyle=R((d=i*S(t)*20+119*i)%256,d/1.4%256,d/7%256,.1),x.fillRect(120*i+30*S(13*t%i)+50,500*C(t/7)+500,40*S(t/i*3)+55,30)

Dec 22 2016 1:04 AM UTC

}// 140/140

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Holiday glass, using an adaptation of new_core's iteration on the colour palette trick, which I was able to shave down further to x.fillStyle=R((d=119*i)%256,d/1.4%256,d/7%256)

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BriSeven

remix of d/523 by u/iverjo

function u(t) {

x.globalAlpha=0.25;for(i=0;i<16;i++)x.fillStyle="#"+(i*t*20>>>0).toString(16),x.fillRect(i*160+S(t)*300-300,0,161,1080)

Dec 20 2016 10:30 PM UTC

}// 119/140

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made the constant into t, added some motion blur to make it less seizure inducing.

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BriSeven

remix of d/521 by u/BriSeven

function u(t) {

c.width=1920;for(i=0;i<16;i++){x.fillStyle="#"+(i*0x775511).toString(16).slice(-6);x.fillRect(i*160+S(t)*300-300,0,160,12000)}

Dec 20 2016 9:08 AM UTC

}// 127/140

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fixed the hex string.

u/lionleaf

That's cool!
u/New_Core

other way, same colors, but not better way: for(i=16;i--;)x.fillStyle=R((d=i*parseInt(77,16))%256,(d/1.4)%256,(d/7)%256),x.fillRect(i*160+S(t)*300-300,0,160,1080)

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BriSeven

remix of d/515 by u/BriSeven

function u(t) {

if(!t)X=[];s=1e3;i=s;while(i)o=X[i],c=i%2*s,X[i]=o<0||o>s||!o?1:o+Math.random()*3-1,x.fillStyle=R(c,c,S(t)*s,2/9),x.fillRect(o,X[--i],9,9)

Dec 19 2016 10:52 AM UTC

}// 138/140

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BriSeven

function u(t) {

n=600,w=1920
if(t<30)
for(i=0;i<2e3;i++)r=Math.random,X=r()*w,Y=r()*1080,
(S(X/n)*C(Y/n)*w|C(Y/n)*1080)>(r())*n*3 ? x.fillRect(X,Y,2,2) : 0

Dec 10 2021 5:49 AM UTC

}// 139/140

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harleqave

u/BriSeven

#cavern #cave

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BriSeven

function u(t) {

c.width=1920;
for(i=-5;i<5;i+=0.62)
D=i<0?-i:i,x.fillStyle=R(S(D)*128+255,C(D)*128+255,512),
x.fillRect(800+i*75+S(t)*300,400,50,200)

Dec 4 2021 4:37 AM UTC

}// 133/140

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Dwansgender Flag

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BriSeven

function u(t) {

a=c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,600,50,S(a+=(i+t)*t*a)*200) // draw 50x200 rects

Apr 21 2020 7:02 AM UTC

}// 130/140

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#default #random #prng

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BriSeven

remix of d/18168 by u/BriSeven

function u(t) {

c.width=1920
for(i=0;i<t*10;i++)
x.fillRect(500+(i&(C(i/t+t)*t)+t)*(500/t),(i&(S(i/t+t)*t)+t)*(500/t),(500/t),(500/t))

Apr 8 2020 1:07 PM UTC

}// 119/140

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circular sierpinski sandstorm swaying

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BriSeven

function u(t) {

s=30,c=240
for(i=0;i<64;i++)for(j=0;j<36;j++)
x.fillStyle=R(((n=(i&j))<(m=(S(t)+1)*20))*c,(n<m-20)*c,(n>m+20)*c),
x.fillRect(i*s,j*s,s,s)

Apr 7 2020 5:43 AM UTC

}// 138/140

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plot the AND binary operator with a posterising effect.

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