Dweets awesomed by u/sfz

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: #Opposites

show FPS hide FPS share fullscreen

sfz

function u(t) {

c.width|=0
M=500
!t?r=[]:1
for(i=M;i;--i)r[i]=r[i]||Math.random(),z=t+M/i,v=z%1,p=v*v*5-4*v,y=r[z&M]*-p+r[z&M-1]*p,x.fillText('◆',4*i,M-y*M)

Feb 28 2017 9:19 AM 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

pstefanlarsson

function u(t) {

c.width=1920
for(i=0;i<400;i++){
a=i%20
b=Math.floor(i/20)
f=C(a+b-t)
w=10+30*f
x.fillRect(600+(40*(2*a+1)-w)/2,140+(40*(2*b+1)-w)/2,w,w)
}

Feb 28 2017 7:59 AM UTC

}// 139/140

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

Jenky

function u(t) {

c.width=320;d=new Date/1e3;r=9
a=v=>{x.beginPath();x.lineWidth++;x.arc(160,90,9*r--,0,v*.1047);x.stroke()}
a(d%60);a(d/60%60);a(d/3600%12*5)

Feb 28 2017 7:10 AM UTC

}// 140/140

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

OS-time Arc Clock

u/donbright

love it!

show FPS hide FPS share fullscreen

pstefanlarsson

function u(t) {

c.width=1920;
for(i=0;i<100;i++){
a = i % 10;
b = Math.floor(i / 10);
x.fillRect(600+a*80, 140 + b*80, 60*C((a+b+1)*t), 60*S((a-b)*t))
}

Feb 28 2017 7:06 AM UTC

}// 136/140

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

u/5Mixer

Woa trip. I love the patterns it makes.

show FPS hide FPS share fullscreen

donbright

remix of d/1491 by u/SpecialAgent

function u(t) {

t?c.width=w:w=512,h=w*9/16,d=x.createImageData(w,h)
for(X=0;X<w;X++)for(Y=0;Y<h;Y++)d.data[(X+Y*w)*4+3]=(X^Y+X&Y)%256
x.putImageData(d,0,0)

Feb 28 2017 1:40 AM UTC

}// 140/140

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

a nice clean and simple Sierpinski gasket using XOR + AND

u/donbright

you can increase w to get a bigger pic but it becomes slow

show FPS hide FPS share 2 remixes fullscreen

lionleaf

remix of d/431 by u/lionleaf

function u(t) {

c.width=2e3;v='Avatars from gravatar!';for(i=v.length;i--;)x.font=130+S(t*5)*30+'px Arial',x.fillText(v[i],i*89,540+S(t*9+i)*20)

Feb 28 2017 12:06 AM UTC

}// 128/140

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

Avatars have been added! They are fetched from gravatar.com based on your email, so register there to get one. Thanks to u/sigveseb for the implementation :)

u/lionleaf

#feature

show FPS hide FPS share fullscreen

scottglz

remix of d/1516 by u/scottglz

function u(t) {

w=c.width=255;h=144;d=c.d=t&&c.d||x.getImageData(0,0,w,h);for(i=0;i<w;i++)d.data[~~(i*t*t)]=i;x.putImageData(d,0,0)

Feb 27 2017 11:57 PM UTC

}// 115/140

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

sfz

remix of d/1507 by u/Kebabman13

function u(t) {

d=new Date
t?o.push([w=777+d%9,-500,9,9]):o=[]
x.fillStyle=R(99,d&w/2)
o.map(a=>(x.fillRect(a[0]+=a[2]+=-t%1+S(t),a[1]+=a[3]+=t%1,55,0.1)))

Feb 27 2017 11:17 PM UTC

}// 140/140

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

Grass is greener

u/donbright

nice build up

show FPS hide FPS share fullscreen

sfz

remix of d/1479 by u/sfz

function u(t) {

c.width=w=2e3
d=new Date
t?!(d&9)&&o.push([d%w,0,0,d%9]):o=[]
o.map(a=>(x.font=a[3]+'em ø',x.fillText('❄',a[0],a[1]+=a[2]+=a[3]*a[3]/w)))

Feb 27 2017 11:03 PM UTC

}// 137/140

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

Snowflakes with gravity acceleration and parallax

u/sfz

err, depth that is, small ones fall slower as if they're further away :P
u/joeytwiddle

#snow I think it's fair to call that parallax, just vertical

show FPS hide FPS share 1 remix fullscreen

Niklas

remix of d/1517 by u/Niklas

function u(t) {

for(c.width|=0,m=960,q=120,i=q;i--;)for(s=S(.026*i)*q*3,j=q;j--;)b=6.28*j/q+t/2,x.fillRect(m+C(b)*s*1.1,m/3.5+5*i+S(b)*s,3,3)

Feb 27 2017 10:56 PM UTC

}// 125/140

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

dwitter.net | sfz (8520)