Top dweets by u/hollo47

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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hollo47

function u(t) {

c.width=g=999;for(i=-70;40>i;i++)for(j=1;80>j;j++)f=500*i,h=j-t%1,l(),f+=500,l();function l(){x.lineTo(500+f/h,(g+270*S(7*f))/h)}x.stroke();

Apr 24 2018 2:03 PM UTC

}// 140/140

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Further learning perspective. Landscape experiment!

u/joeytwiddle

That's cool! #landscape #perspective
u/jylikangas

Nice! There are some golfing opportunities. 124 byte version...for(c.width=g=999,i=-70;40>i++;)for(j=80;--j;l(f+=500))(l=e=>x.lineTo(500+f/h,(g+270*S(7*f))/h))(f=500*i,h=j-t%1) x.stroke()

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hollo47

function u(t) {

c.width|=0;
for(i=-50;i++<50;)
for(j=1;j++<150;)f=33e3*i,h=j*58,
g=60e3+S(j/11+t*2)*9999+C(i/3+t)*9e3,
x.fillRect(960+f/h*3,540+g/h*3,1,1);

May 17 2018 4:10 PM UTC

}// 139/140

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#ocean waves

u/joeytwiddle

Nice, dots on the beach. I used 5,5 so I could see the dots more clearly, and t*=15 for speed

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hollo47

function u(t) {

c.width=1920
n=300
f=345
x.beginPath()
for(i=0;i<=n;i++){z=-4+S(t)-2*C(t+i*f)
x.lineTo(960+S(t+i*f)*i*4/-z,f+(C(i*f)*4+i*4)/-z)
x.stroke()}

Apr 19 2018 4:33 PM UTC

}// 139/140

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My first perspective! I know there's like a thousand of these on dwitter, but this is mine and I understand what's going on!

u/aleamb

Awesome! ;)
u/BuRRak

#perspective

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hollo47

remix of d/7568 by u/hollo47

function u(t) {

for(w=1920,h=1080,d=9;d>0;d--)s=S(t/7+3*d),f=C(t/7*d/3),x.arc(s*s*w,f*f*h,1,0,0),x.fillStyle=R(h/s,f*h,f*s*h,0.01),x.fill();x.beginPath()

Apr 4 2018 5:55 PM UTC

}// 137/140

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hollo47

function u(t) {

for(i=0;i<6000;i++)w=i%99,h=~~(i/99),d=Math.hypot(w-50,h-25),x.fillStyle=R(255*S(t),99*S(t*d*3),255,S(60-d/44)),x.fillRect(20*w,20*h,20,20)

Apr 4 2018 4:41 AM UTC

}// 139/140

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When you're not wearing sunglasses...

u/hollo47

#sun

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hollo47

function u(t) {

for(c.width=w=300,h=400,i=1;i<53;i++)a=3*t*i/2%w*2,a>w?a=2*w-a:a,b=h-S(t-i)*h,b>h?b=2*h-b:b,x.fillStyle=R(a,t*i,b,1),x.fillText("⬤",a,b);

Apr 5 2018 1:22 PM UTC

}// 137/140

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My best attempt at recreating the sony bravia bouncy balls ad

u/New_Core

=) did you see.. https://www.dwitter.net/d/3267
u/hollo47

No I didn't, wow.

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hollo47

function u(t) {

for(c.width=w=1920,h=1080,d=19;d>0;d--)s=S(t/3+3*d),f=C(t/7*d/3),x.arc(s*s*w,f*f*h,1,0,0),x.fillStyle=R(255*f,255,255*s,.1),x.fill();

Apr 4 2018 5:04 PM UTC

}// 133/140

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