Dweets by u/f8f82804

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 1 remix fullscreen

f8f82804

function u(t) {

;

Sep 3 2018 9:22 PM UTC

}// 1/140

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

#minimal non-empty tweet

show FPS hide FPS share 1 remix fullscreen

f8f82804

remix of d/9531 by u/f8f82804

function u(t) {

for(i=32;i--;t||x.strokeRect(-32,-32,64,64))x.setTransform(s=6*S(i),0,0,s,i%2*360+780,360*(i/2%2+1|0)),x.rotate(s/64)

Aug 31 2018 6:30 PM UTC

}// 117/140

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

#minimal #art #tribute

show FPS hide FPS share fullscreen

f8f82804

remix of d/9542 by u/f8f82804

function u(t) {

for(U=V=0,z=i=64;i--;)for(j=z;j--;x.fillRect(16*i+448,16*j,16,16))U+=i+S(t),V+=j+C(t)/9,x.fillStyle=R(U>z?(U-=z,255):0,V>z?(V-=z,255):0,255)

Aug 31 2018 5:05 PM UTC

}// 140/140

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

#outrun #palette #dithering #animated

u/f8f82804

the palette that's being rendered in 4 colors: for(z=i=64;i--;)for(j=z;j--;x.fillRect(16*i+448,16*j,16,16))x.fillStyle=R(i*4,j*4,255)

show FPS hide FPS share fullscreen

f8f82804

remix of d/9561 by u/f8f82804

function u(t) {

p=a=>127-C(a)*127;x.fillStyle=R(p(t),p(t-2),p(t+2));x.setTransform(1,0,0,1,960,540),x.rotate(t),x.fillRect(99,0,(t+1.05)%2.1<.02?500:250,16)

Aug 31 2018 4:35 PM UTC

}// 140/140

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

#color wheel

u/katkip

that's actually impressive

show FPS hide FPS share fullscreen

f8f82804

remix of d/9591 by u/magna

function u(t) {

s=Array((S(t)+1)*9|0).join` `+Array(9).join`▮`;c.width^=0;x.font='9em x';x.scale(1,3);x.fillText(s,0,200);throw s

Aug 31 2018 4:18 PM UTC

}// 113/140

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

#default

u/Purpzie

NO HECKING WAY

show FPS hide FPS share fullscreen

f8f82804

remix of d/9570 by u/f8f82804

function u(t) {

z=32;for(i=z*z;i--;x.fillRect(i%z*z+448,j*z,z,z))U=i%z*S(t)**2,V=(j=i/z%z|0)*S(t)**2,x.fillStyle=R((i+t|0)%7*U+U>z?255:0,0,i%7*V+V>z?255:0)

Aug 30 2018 11:41 PM UTC

}// 139/140

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

ordered #dithering #animated

u/joeytwiddle

Very clever mini dithers! How about dithering a sphere?
u/f8f82804

A sphere is a good idea! I'm still trying to work on spatial coherence though; see my earlier Floyd-Steinberg demo to get an idea of what's possible with 2d error diffusion. This dweet is a start at using a mask instead of diffusing errors.

show FPS hide FPS share 1 remix fullscreen

f8f82804

remix of d/9568 by u/f8f82804

function u(t) {

z=32;for(U=V=z*S(t/4),i=z*z;i--;x.fillRect(i%z*z+448,j*z,z,z))V+=j=i/z%z|0,U+=i%z+j/z,x.fillStyle=R(U>z?(U-=z,255):0,0,V>z?(V-=z,255):0)

Aug 30 2018 11:23 PM UTC

}// 136/140

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

#dithering #animated

u/katkip

Looks cool!

show FPS hide FPS share 2 remixes fullscreen

f8f82804

remix of d/9542 by u/f8f82804

function u(t) {

z=256;for(i=z*z;i--;x.fillRect(i%z*4+448,j*4,4,4))b=t&1||(U=V=0),U+=i%z,V+=j=i/z%z|0,x.fillStyle=R(b?U>z?(U-=z,z):0:U,0,b?V>z?(V-=z,z):0:V)

Aug 30 2018 11:01 PM UTC

}// 139/140

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

2D palette and approximation with 4 color #dithering; 1D error diffusion gives different patterns for vertical gradients (red channel) and horizonal (blue channel) #slow #waitforit

show FPS hide FPS share 2 remixes fullscreen

f8f82804

remix of d/9560 by u/f8f82804

function u(t) {

p=a=>127-C(a)*127;for(i=3;--i;x.fillRect(0,0,960*i,2e3))x.fillStyle=R(p(a=t+i*22),p(a-2),p(a+2))

Aug 30 2018 7:10 PM UTC

}// 96/140

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

looping saves another 22 bytes #golf #color #palette

show FPS hide FPS share 1 remix fullscreen

f8f82804

remix of d/9532 by u/f8f82804

function u(t) {

p=a=>127+S(a)*127;with(x)f=a=>fillStyle=R(p(a),p(a+21),p(a-21)),f(t),fillRect(0,0,v=2e3,v),f(t+22),fillRect(960,0,v,v)

Aug 30 2018 6:31 PM UTC

}// 118/140

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

Saved 22 characters on my palette with a little golf and some integer approximations for multiples of π. Let me know if you'd like to see the spreadsheet that lays out different approximations and their accuracy.

dwitter.net | f8f82804 (1346)