Dweets awesomed by u/nikoloffgeorgi

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

} // 112/140

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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: #Food

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nikoloffgeorgi

function u(t) {

!t&&c.parentNode.append((d=c.hidden=c.cloneNode(),b=d.getContext('webgl'),b.viewport(0,0,1,1),b.clearColor(1,0,0,1),b.clear(0x000004000),d))

Jul 22, 2020 9:01 PM

}// 140/140

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paint with webgl

Show more comments…
u/IV

a webgl that does something, and leaves 39 chars to play with
u/IV

whoops, meant to put that in the remix note, then the remox failed, bad day ;)
u/IV

here we go; https://www.dwitter.net/d/19511
u/nikoloffgeorgi

u/IV that's really cool. i wonder if anything beyond animating the color uniformly can be done within 140 chars
u/IV

This is 140 chars. If you can mix it with your moving cubes code and golf it down, youre winning! t||c.replaceWith(g=c.cloneNode());i=t|0; with(c.getContext('webgl'))(enable(0x0C11),scissor(i,i,i,i),clearColor(C(t),S(t),t,1),clear(16384))
u/IV

u/nikoloffgeorgi I did this: d/19541, (but I cant do comments properly yet) Your turn!

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rodrigo.siqueira

remix of d/19448 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(var i=5e3;i--;){var X=S(i*i),Y=C(i-t),Z=X*X+Y*Y*2;x.fillRect(980+300*(Z*S(i+t)),500-150*Y*(S(Z+i)*3)-Y,7,7)}

Jul 19, 2020 4:26 PM

}// 123/140

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Symmetry ribbon dance

u/andrea270872

I see! The famous butterfly effect! ;) ;) (sorry for the joke... terrific dwit)

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nikoloffgeorgi

remix of d/19058 by u/nikoloffgeorgi

function u(t) {

c.width|=t||(a=b=9,z=0,v=k=999);m=t-z;z=t
a+=v*m
b+=k*m
v+=S(t)*29;k-=S(t)*9;(a>1900|a<9)&&(v=-v)
;(b>999|b<9)&&(k=-k)
x.fillRect(a,b,25,25)

Jun 6, 2020 2:49 PM

}// 140/140

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nikoloffgeorgi

function u(t) {

c.width|=!t&&(a=b=600,z=0,v=k=999);m=t-z;z=t
a+=v*m
b+=k*m
v+=S(t)*100
;(a>1900||a<10)&&(v=-v)
;(b>1060||b<10)&&(k=-k)
x.fillRect(a,b,20,20)

Jun 6, 2020 9:07 AM

}// 140/140

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ntsutae

function u(t) {

t*=30,t||(c.width=w=960)
for(x.drawImage(c,0,1),i=w;--i;)
x.fillStyle=R(g=(t+((i-t)^(i+t))**4)%997<97?w:0,g,g),
x.fillRect(i,0,1,1)

Jun 5, 2020 12:56 AM

}// 131/140

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Circuit Diagram

u/tomxor

Nice! most convincing xor sampling #circuit pattern i've seen, lots of ball grid arrays
u/ntsutae

(i-t)^(i+t) is great.
u/rodrigo.siqueira

Change ^ to | and you will see falling Sierpinsky triangles! I mean: (i-t)|(i+t)
u/ntsutae

Yes, I've already tried "|","&". The triangles appeared without the use of recursive call. Dwitter told me bit operation skills. Thank you.

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Xen

remix of d/18993 by u/cshadows

function u(t) {

for(c.width|=i=29;i--;x.fillStyle=R(C=i*9,C,C,.4),x.beginPath(x.fill(x.arc(99,75,99,0,9))))x.setTransform(1,0,0,1,900+C*T(t*2),500+C*T(t*3))

May 28, 2020 10:56 PM

}// 140/140

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slight golf and play

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stefano

remix of d/18954 by u/stefano

function u(t) {

for(c.width=w=48,i=0,h=27;i<w*h;){q=i%w;a=(++i-q)/w;u=24-q;v=14-a;l=2**8/(u**2+v**2)*255*S(t);x.fillStyle=R(l,l,l/2,1);x.fillRect(q,a,1,1)}

May 24, 2020 10:51 PM

}// 140/140

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Yellow

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New_Core

function u(t) {

t%3>2?c.width|=0:0
x.fillText("D W I T T E R",0,8)
for(i=9;i--;)x.drawImage(c,d=t%3*60,i,1,1,d*30+99*S(a=i/9+t*6),400+i*30+99*C(a),30,30)

May 24, 2020 5:01 PM

}// 137/140

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nikoloffgeorgi

function u(t) {

c.width|=[...'qwyo'].map(a=>this[a]=this[a]||40);v=1040
q+=y*=.992,w+=o+=4
q>1880|q<=0&&(y=-y)
w>v&&(w=v,o=-o*.925)
x.fillRect(q,w,40,40)

May 22, 2020 3:39 PM

}// 137/140

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trying a technique to preserve state between frames

u/joeytwiddle

How about this? t?0:(q=w=y=o=40)
u/nikoloffgeorgi

really elegant!

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nikoloffgeorgi

function u(t) {

c.width|=e=0;x.lineWidth=99;for(i=0;i<40;x.globalAlpha=i/40,x.beginPath(),x.arc(960,540,i*S(t)*10+399,e,e+=.3+S(t)*.3),x.stroke(),i++);

May 15, 2020 3:59 PM

}// 135/140

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