Dweets awesomed by u/jellyedwards

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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: #Food

show FPS hide FPS share 1 remix fullscreen

Blacklink

function u(t) {

c.width|=0
for(i=1;i<28;i++){q=(50+i*75+t*75)%1000
x.lineWidth=q/20
x.beginPath()
x.arc(980,540,q,(i*5)+t/(i*5),(i*5)+t/(i*5)+1)
x.stroke()}

Jul 2 2019 6:25 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

show FPS hide FPS share fullscreen

username

remix of d/10914 by u/rodrigo.siqueira

function u(t) {

for(c.width=840,s=300;s--;)for(t+=.15,Q=t%4,i=(t^0)%6;i--;)x.arc(400+s*S(A=(Q*(Q<1)+i)*1.57),25+s/2*(C(A)+2),4,0,7)
x.stroke()

Jul 1 2019 9:16 PM UTC

}// 126/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#randomremix no 16 - it's a pyramid with circles swirling about it.. isn't that obvious?

u/Xen

looks like a sprite from some Egypt 2300 simulation game :-o
u/katkip

#pyramid

show FPS hide FPS share 7 remixes fullscreen

KilledByAPixel

function u(t) {

c.width|=c.style.background="#CDF";for(j=3e3;j--;x.arc(960,540,430+60*S(j/500+a*4)*(S(a-t)/2+.5)**9,a,a))a=j/159+t,x.lineWidth=29
x.stroke()

Jul 1 2019 2:56 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Circle Wave #beesandbombs 🐝 💣

u/KilledByAPixel

This one was fun because I found a way to combine the loops and hide the start/end gap that removes the need for a beginPath. Freeded up enough space for background color, or something cool in a remix.
u/aleamb

yeah!
u/pavel

Buggy in Safari. Jagged things sticking out, i think from the line end-caps, also breaks after a while because you didn't wrap-around the angle in arc.
u/pavel

Huh, actually both issues are resolved by modding the arc angle by 2*pi
u/KilledByAPixel

Explanation for how it works at http://frankforce.com/?p=6597

show FPS hide FPS share 1 remix fullscreen

KilledByAPixel

function u(t) {

c.width|=0
for(j=2093;j--;x.lineTo(j+(.1+q)*19*S(X=j/9+y/9+t*9),y+540))y=C(j/9)*540,q=(j-960)**2+y**2<2e5
x.fill()

Jun 27 2019 5:14 PM UTC

}// 114/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Circle in Waves

u/joeytwiddle

Nice. Novel!
u/magna

Great!
u/katkip

wow
u/katkip

#waves

show FPS hide FPS share 1 remix fullscreen

KilledByAPixel

function u(t) {

r=X=>S((X|0)**(Y|0))
l=_=>r(X)*(1-X%1)+X%1*r(X+1)
f=_=>(1-Y%1)*l()+Y%1*l(Y++)
for(i=1920;i--;x.fillRect(i,Y=frame,q=2*f(X=i/29+1,Y/=29),q));

Jun 27 2019 4:22 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Noise Maze

u/katkip

wow

show FPS hide FPS share fullscreen

rodrigo.siqueira

function u(t) {

for(c.width=w=i=2e3;i--;)
X=S(i*i),Y=S(i),ℵ=C(Math.atan2(X,Y)-t)*Math.hypot(X,Y),
K=w/2,x.fillRect(w*ℵ/(Z=4+C(t)+X*X-Y*Y)+K,w+K*(ℵ-6)/Z,7,8)

Jun 26 2019 7:01 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

The Hyperbolic Paraboloid (z=x²-y²). The S(i*i) and S(i) are random number generators between -1 and +1. The atan2 and hypot are used to calculate 3d object rotation (Euler equations could also be used, as seen on /d/12086). Thanks to u/cantelope for the Tiny 3D Engine Tutorials: https://cantelope.org/tiny_3D/ and https://cantelope.org/3D/ #math #hypot #D3 #hyperbolic #surface

u/cantelope

:D
u/rodrigo.siqueira

There is an interesting fact that the Pringles potato chips are a truncated hyperbolic paraboloid. The strength of the shape helps to prevent them from breaking while stacked. The curvature of the shape improves resistance to tension and compression forces. Remember this next time you eat a hyperbolic paraboloid.

show FPS hide FPS share 2 remixes fullscreen

KilledByAPixel

remix of d/14763 by u/KilledByAPixel

function u(t) {

c.width|=0
with(x)for(j=50;j--;)for(beginPath(i=99);i--||stroke();)arc(j%10*192+96,50+96+(j/10|0)*192,96,q=i*.0641,(q*j+t)%(Math.PI*2))

Jun 25 2019 9:46 PM UTC

}// 135/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Iris Variations

Show more comments…
u/loktar

Awesome!
u/Xen

LOVE IT!
u/donbright

ok thats it. Internet is now complete. no need for anything else
u/magna

#multidweet
u/KilledByAPixel

Mathologer video about this: https://www.youtube.com/watch?v=qhbuKbxJsk8
u/KilledByAPixel

https://www.fxhash.xyz/generative/2216 #fxhash

show FPS hide FPS share 1 remix fullscreen

KilledByAPixel

remix of d/14761 by u/KilledByAPixel

function u(t) {

with(x)for(fillRect(0,0,c.width|=0,2e3),strokeStyle="#F00",i=99;i--||stroke();lineWidth=7)arc(960,540,500,q=i*.0641,(q*4+t)%6.2832)

Jun 25 2019 9:27 PM UTC

}// 131/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Iris Exploration

show FPS hide FPS share fullscreen

KilledByAPixel

remix of d/14751 by u/KilledByAPixel

function u(t) {

with(x)for(i=219;i--;fill())for(beginPath(j=3);j--;arc(960,540,i*9,a=j/.477+S(i/2+t)/2+.52,a))fillStyle=`hsl(${i-t*19} 99%${30+S(i)*30}%`

Jun 25 2019 4:39 PM UTC

}// 137/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

▲Triangle Twister▼

u/loktar

Love it!
u/magna

Pretty!
u/aleamb

love it!

show FPS hide FPS share 3 remixes fullscreen

KilledByAPixel

remix of d/14750 by u/KilledByAPixel

function u(t) {

c.width|=0
with(x)for(i=182;i--;stroke())for(beginPath(lineWidth=j=7);j--;arc(960,540,i*7,a=j/.95+5*S(i/5+t*2)/29,a))strokeStyle=R(0,i/3,i)

Jun 25 2019 2:20 PM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Twisted Spiral 2

u/katkip

nice
u/Xen

wow

dwitter.net | jellyedwards (41543)