Hot dweets by u/smtsjhr

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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smtsjhr

function u(t) {

c.width=1920;n=40;d=50;
for(i=0;i<n*n;i++){
k=i%n;j=(i-k)/n;f=(j*k+n*n)*t/1000;
x.fillRect(d*j,d*k,d*S(f),d*C(f))}

Mar 11 2020 5:27 AM UTC

}// 114/140

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smtsjhr

function u(t) {

c.width=1920
p=Math.PI
s=t*p/15
for(i=0;i<7;i+=p/50){
l=40+20*S(7*s+7*i)
x.fillRect(960+900*S(3*s+3*i),540+480*S(4*s+4*i),l,l)}

Oct 31 2019 9:16 PM UTC

}// 127/140

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Knotted Lissajous Trail

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smtsjhr

function u(t) {

c.width=1920
for(i=0;i<2000;i+=20){for(j=0;j<1200; j+=20){x.fillStyle=R(0,0,0,.5+.5*S(.0002*t*(i-960)*(j-540)))
x.fillRect(i,j,20,20)}}

Sep 25 2019 4:01 AM UTC

}// 135/140

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smtsjhr

function u(t) {

c.width=1920
for(n=0;n<50;n++) 
for(u=0;u<90;u++){x.fillStyle=R(0,0,255,.1)
x.fillRect(30*u-200,1000*S(5*u*n-.15*t)+100,100,100)}

Sep 15 2019 6:38 AM UTC

}// 133/140

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Caustic Shimmer

u/smtsjhr

dip your toes in at least!
u/taupelink

Nice!
u/joeytwiddle

#water

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smtsjhr

function u(t) {

c.width=1920
s=Math.PI*C(.02*t%Math.PI)
x.lineWidth=55
for(i=0;i<1250;i+=50){
x.beginPath()
x.arc(960,540,i,Math.PI+i*s,i*s)
x.stroke()}

Sep 6 2019 5:41 PM UTC

}// 137/140

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Harmonic Spin

u/smtsjhr

takes about 2.5 minutes for the motion to loop (assuming 60 fps). Don't stare too long!

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smtsjhr

function u(t) {

c.width=1920;
x.lineWidth=3;
x.beginPath(); 
for(i=0;i<400;i++){
k=4000*.98**i;
x.lineTo(960+k*S(i*.02*t),540+k*C(i*.02*t));
}
x.stroke();

Sep 4 2019 8:58 AM UTC

}// 139/140

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Line Spiral

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smtsjhr

function u(t) {

c.width=1920;h=540;r=.996;
s=.999+.009*C(t);
x.beginPath(); 
for(i=0;i<1000;i++)
x.lineTo(960-480*r**i*S(i*s),h+h*r**i*C(i/s));
x.stroke();

Sep 4 2019 5:27 AM UTC

}// 139/140

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wink wink ; )

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smtsjhr

function u(t) {

c.width=1920;h=540;r=.996;
s=.008*C(2*t);
x.beginPath(); 
for(i=0;i<1000;i++)
x.lineTo(960-960*r**i*S(i*s),h+h*r**i*C(i/s));
x.stroke();

Sep 4 2019 5:35 AM UTC

}// 136/140

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slalom

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smtsjhr

function u(t) {

c.width=1920;
s=.001*t+3;
x.beginPath(); 
for(i=0;i<200;i++){
k=2000*.999**i;
x.lineTo(960+k*S(i*s),540+k*C(i*s));}
x.fill('evenodd');

Sep 4 2019 9:22 AM UTC

}// 135/140

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Liner Eclipse (2-colored)

u/smtsjhr

best viewed in fullscreen

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smtsjhr

function u(t) {

c.width=1920;l=2000;r=.9994;
s=.0005*t+3.15;
x.beginPath(); 
for(i=0;i<400;i++)
x.lineTo(960+l*r**i*S(i*s),540+l*r**i*C(i*s));
x.stroke();

Sep 4 2019 8:42 AM UTC

}// 139/140

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Liner Eclipse

u/smtsjhr

best viewed in fullscreen

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