Dweets awesomed by u/cantelope

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.

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Current theme challenge: #Food

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jbrewhaha

function u(t) {

s=150
f=255
for(i=0;i<1920/s;i++) {
 f=~f*S(t)
 for(j=0;j<1080/s;j++) {
  f=~f
  x.fillStyle=R(f,f,f);
  x.fillRect(s*i,s*j,s,s)
 }
}

Oct 15 2018 6:47 PM UTC

}// 133/140

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First dweet!

u/lionleaf

Nice one! Welcome :)
u/iverjo

Welcome

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pavel

remix of d/10356 by u/pavel

function u(t) {

for(x.fillRect(0,0,X=w=c.width=600,w);X-=6;)for(r=X**2.3%w,Y=h=r*t&504;Y;x.fillText(r*Y&1,X,Y-=8))x.fillStyle=R(b=Y-h||w,250+Y-h,b)

Oct 15 2018 12:05 AM UTC

}// 131/140

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#matrix #rain v3 shorter, faster, and with variable speed droplets

u/joeytwiddle

Let the white burn briefly: b=250+(Y-h)*6

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gabrielsroka

function u(t) {

eval(unescape(escape`睩瑨⡸⥯湭潵獥浯癥㵥㴾氨匽攮砬䌽攮礬吽挮睩摴栽㔶㠩ⱸ⹬㵬楮敔漬氨䔽匯㈬䐽䌯㈩ⱬ⡅ⱊ㵄⬹㤩ⱬ⡓ⱆ㵊⨲⤬氨匬䌩ⱬ⡗㵔⼲⭅ⱄ⤬氨圬䨩ⱬ⡓ⱆ⤬氨匬䌩ⱬ⡅ⱄ⤬氨㈪圯㌬䌯㌩ⱬ⡗ⱄ⤬氨匬䌩ⱳ瑲潫攨⤻`.replace(/u(..)/g,"$1%")))

Oct 14 2018 8:53 PM UTC

}// 140/140

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#interactive #d3 #perspective, see also https://www.khanacademy.org/computer-program…

Show more comments…
u/gabrielsroka

see also https://www.dwitter.net/d/9207
u/gabrielsroka

uncompressed: with(x)onmousemove=e=>l(S=e.x,C=e.y,T=c.width=568),x.l=lineTo,l(E=S/2,D=C/2),l(E,J=D+99),l(S,F=J*2),l(S,C),l(W=T/2+E,D),l(W,J),l(S,F),l(S,C),l(E,D),l(2*W/3,C/3),l(W,D),l(S,C),stroke()
u/gabrielsroka

#cube maybe?
u/pavel

onmousemove=e=>[S=e.x,E=S/2,E,S,S,W=284+E,W,S,S,E,W*2/3,W,c.width=568].map((a,i)=>x.lineTo(a,[C=e.y,D=C/2,J=D+99,F=J*2,C,D,J,F,C,D,C/3,D][i])),x.stroke()
u/yonatan

139 with Path2D: onmousemove=e=>x.stroke(new Path2D('M'+[S=e.x,C=e.y,E=S/2,D=C/2,E,J=D+99,S,F=J*2,S,C,W=274+E,D,W,J,S,F,S,C,E,D,2*W/3,C/3,W,D],c.width=568))
u/gabrielsroka

u/pavel - i was just thinking about trying something similar, but you beat me to it. well done!
u/gabrielsroka

u/yonatan - i was not aware of Path2D. thanks, and well done! i also see my T could be optimized (leftover from a previous iteration)
u/donbright

brava
u/rep_movsd

#underrated

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rbong

function u(t) {

for(c.width=X=99;X--;)for(Y=56;Y--;)x.fillStyle=R((c=S(X*X/26+Y*Y/26+t*5))*60+99,S(c*3.14+2)*60+99,S(c*3.14+4)*60+99),x.fillRect(X,Y,1,1)

Oct 14 2018 1:30 AM UTC

}// 137/140

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Hypnosis

u/joeytwiddle

u/donbright loves the circles fractals

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rodrigo.siqueira

function u(t) {

x.fillRect(x.globalAlpha=.03,0,2e3,2e3)
for(i=700;i--;x.clearRect(960+C(t)*100+S(t)*420+S(i)*r,540+C(i)*r,4,3))r=480*Math.random()*S(t)**8

Oct 13 2018 11:22 PM UTC

}// 138/140

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Pulstar (pulsating stars)

u/magna

Remix of d/8947

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Forge

function u(t) {

for(x.fillRect(o=12,0,i=n=c.width=540,n);i-=o;)for(j=0,a=((n*i^1e7)+n*t)%n;j<a;j+=o)x.fillStyle=R(b=n*(o>a-j),n/2+j-a,b),x.fillText(j%9,i,j)

Oct 13 2018 8:31 PM UTC

}// 140/140

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akx

function u(t) {

for(c.width|=0,y=0;1080>y;y+=5)for(i=0;10>i;i++)x.setTransform(1+(.002*y)**3,0,0,1,960+100*S(3*t-.015*y),y),x.fillRect(100*(i-4.75),0,50,5)

Oct 13 2018 1:38 PM UTC

}// 140/140

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laminar marimekko

u/qbob

oooohhhhh
u/katkip

nice
u/lionleaf

Amazing! #flow
u/joeytwiddle

wibbly wobbly #warping
u/Purpzie

Shortened by 10 characters: for(c.width=b=2e3;b--;x.fillRect(100*(b%10-4.75),0,50,5))x.setTransform(1+(.002*(y=(0|b/10)*5))**3,0,0,1,960+100*S(3*t-.015*y),y)

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pavel

remix of d/10354 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=W=c.width=600,W);i;i-=5)for(j=0,a=((W*i^1e7)+t*W)%W;j<a;x.fillText(i%j&1,i,j+=9))x.fillStyle=R(b=(a-j<9)<<8,300+j-a,b)

Oct 13 2018 4:01 AM UTC

}// 139/140

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Matrix Rain v2

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BalintCsala

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵙㴹〻夭ⴻ⥦潲⡘㴹㤻堭ⴻ砮晩汬剥捴⠹㤹⭃⡡⤪⠳〰⭫⨹⤬太㄰⭓⡡⤪⠱㈰⭫⨷⤬㄰ⰱ㈩⥸⹦楬汓瑹汥㵠桳氨〠⑻⡫㵙┵☦⡘⭴⨹㤫⡙⼵簰⤪㐩┹㸱⤪㔰紥⑻㘰⭃⡡㵘⼳㈩⨲〭欪㌰紥总`.replace(/u(..)/g,"$1%")))

Oct 12 2018 8:51 PM UTC

}// 136/140

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Very fake bump mapping with very sad framerate

u/BalintCsala

pre-compression: for(c.width|=Y=90;Y--;)for(X=99;X--;x.fillRect(999+C(a)*(300+k*9),Y*10+S(a)*(120+k*7),10,12))x.fillStyle=hsl(0 ${(k=Y%5&&(X+t*99+(Y/5|0)*4)%9>1)*50}%${60+C(a=X/32)*20-k*30}%
u/aleamb

awesome!
u/magna

Looks solid.
u/yonatan

this is great!
u/lionleaf

#bumpmapping #bricks #d3 #chimney :D

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yonatan

remix of d/10334 by u/yonatan

function u(t) {

c.width|=c.style.background='radial-gradient(tan,#000'
for(k=4e3;k--;x.fillRect(960+(k%9/4+S(t)-1)*20*$,640+k/9,2.5*$,k>9?.5:-200))$=20+k/81

Oct 12 2018 5:32 PM UTC

}// 140/140

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#default

Show more comments…
u/donbright

WWWWWWWWWWOAH
u/prplz

this is the one
u/iverjo

#shadows
u/sigveseb

YES! SO GOOD!
u/sigveseb

and it's a #default too! :P
u/loni_art

yooooooooooooooooooo!
u/katkip

lol nice
u/aleamb

great!
u/veubeke

<3
u/katkip

64 awesomes! 29/11/2019
u/dull_pixel

#raytracing
u/vain

amazing! Like the added gradient and shadow fx. ++++

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