New #tunnel dweets

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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pythech

remix of d/8520 by u/pythech

function u(t) {

x.beginPath()
c.width|=0
for(i=t*1.2;--i>0;) {
x.arc(S(i)*C(t)*300+900,700,19+i**Math.min(t,20),0,9,1)
}
x.fill("evenodd")

Jun 10 2018 1:14 AM UTC

}// 122/140

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tunnels

u/lionleaf

#tunnel
u/iverjo

Nice idea
u/katkip

That's genius

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pythech

remix of d/8519 by u/pythech

function u(t) {

x.beginPath()
c.width|=0
for(i=100;--i>0;) {
x.arc(S(i+t)*C(t)*100+900,700,19+i**2.5,0,9,1)
}
x.fill("evenodd")

Jun 10 2018 12:40 AM UTC

}// 111/140

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u/iverjo

#tunnel

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Xen

remix of d/8508 by u/firegodjr

function u(t) {

c.width=333
for(x.shadowBlur=i=30;i--;x.fillRect(155-i*6+S(i*t)*i/9,i*C(i-t*9),i*13,i*9))x.shadowColor='#'+frame

Jun 9 2018 3:21 PM UTC

}// 112/140

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Forbidden-Stairway2: Wrath of Hue

u/pythech

so dope
u/lionleaf

Awesome! #tunnel #stairs #color

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cagr30

function u(t) {

for(x.fillRect(0,0,2e3,2e3),W=960,j=99;--j;)for(i=16;i--;x.clearRect(W+S(p=.39*i+j/4-6.03*V)/Z*W,540+C(p)/Z*W,s=99/Z,s))Z=j-t*6+(V=(t*6)|0)

Apr 21 2018 7:32 PM UTC

}// 139/140

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u/iverjo

#tunnel

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anthonylewis

remix of d/7718 by u/anthonylewis

function u(t) {

w=c.width^=0
for(i=30;i--;)
Z=w/(i-t%2+1),x.beginPath(),x.arc(960,540,Math.abs(Z),0,7),x.stroke()

Apr 21 2018 1:43 AM UTC

}// 97/140

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And now a round tunnel...

u/magna

#tunnel

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anthonylewis

remix of d/7718 by u/anthonylewis

function u(t) {

w=c.width^=0
x.globalAlpha=.1
for(i=30;i--;)
Z=w/(i-t%2+1),x.fillRect(960-Z/2,540-Z/2,Z,Z)

Apr 21 2018 1:33 AM UTC

}// 90/140

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u/Agnes

Really classy shades of grey... looks like something you'd see at a museum.
u/BuRRak

This is so satysfing to watch
u/rjro

dat hotline bling dat James Turrell aesthetic
u/BuRRak

This is mindblowing because it is all the same color
u/lionleaf

#tunnel

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anthonylewis

remix of d/7659 by u/New_Core

function u(t) {

w=c.width^=0
for(i=30;i--;)
Z=w/(i-t%2+1),x.rect(-Z/2+960,-Z/2+540,Z,Z),x.stroke()

Apr 20 2018 12:16 AM UTC

}// 82/140

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A simple tunnel to use a base for future effects (hopefully)

u/jylikangas

You can use strokeRect here. Golfed to 71b... for(w=c.width|=i=30;i--;x.strokeRect(960-Z/2,540-Z/2,Z,Z))Z=w/(i-t%2+1)
u/magna

#tunnel

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jylikangas

function u(t) {

c.width=300+S(t/2)*99
with(x)for(i=17;--i;fill())globalAlpha=.2,arc(X=99+i*S(t/3)*3,70,450/(Z=i-t*6%1),2.7,6.7)&rect(X-(z=150/Z),70+z,z*2,7)

Mar 31 2018 10:18 AM UTC

}// 140/140

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Tribute to Strange Crystals

Show more comments…
u/iverjo

Very good tunnel!
u/p01

✨ You can save 3 bytes by replacing 2.7 and 6.7 by 9 and 13
u/jylikangas

Thanks! Improved version: c.width=W=350+C(t)*150 with(x)for(i=17;--i;fill())globalAlpha=.2,arc(X=W/2+i*S(t/3)*4,70,450/(Z=i-t*8%1),9,13)&rect(X-(z=150/Z),70+z,z*2,7)
u/iverjo

#tunnel
u/sigveseb

#witchcraft
u/pavel

Even better with(x)for(c.width=W=350+C(t)*150,i=17;--i;fill(rect(X-z,70+z,z*2,7)))globalAlpha=.2,z=150/(i-t*8%1),arc(X=W/2+i*S(t/3)*4,70,3*z,9,13)
u/vain

This psydo 3D programming is just too high for me! My biggest respect! ! ++++

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Agnes

function u(t) {

with(x)for(w=c.width=1920,i=100,translate(w/2,540);i--;r=w/i,rotate(T(t/30)),strokeRect(m=-r/2,m,r,r));

Mar 25 2018 4:46 PM UTC

}// 103/140

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(Looks way better in full screen.)

u/joeytwiddle

#tunnel #spiral #mercury #timeless #doctor_strange

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romancortes

function u(t) {

for(k=i=480;i--;)for(x.fillStyle=R(f=k/(i-t*9)),y=9;f>0&-9<y--;)for(X=9;-9<X--;)(X*X^9+i%5)&&X*X+y*y<30||x.fillRect(k/f*9+X*f+960,y*f+k,f,f)

Mar 9 2018 11:30 AM UTC

}// 140/140

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u/magna

Neat!
u/jylikangas

Good memories from years back. :) Good to see you here!
u/aleamb

wow!!
u/iverjo

#tunnel

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