Dweets awesomed by u/hollo47

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #ScaryMovies

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keithclark

remix of d/8806 by u/keithclark

function u(t) {

for(Z=L=52,c.width=L*4;Q=Z--/9;)for(Y=X=L;X>-L;x.fillRect(X--/Q*9+99,L+U/Q,9/Q,L))Y+=7*C(X/2^Q*2+t*9),x.fillStyle=R(U=Y<L?Y:L,Q*L+U,U/L<<8)

Jul 9 2018 10:15 PM UTC

}// 139/140

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Managed to create a flat sea. Had to trade off the nice distance fog effect.

Show more comments…
u/joeytwiddle

Awesome infinite #landscape
u/lionleaf

Amazing!
u/jylikangas

Love it! Well done!
u/iverjo

Wow!
u/lionleaf

#minecraft
u/zanella

Replace Y<L?Y:L with Y and you'll understand how the flat sea effect was achieved. Nice one. ;)
u/Conjuror

love it
u/vain

OMG - really hot shit :D

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keithclark

remix of d/8799 by u/keithclark

function u(t) {

for(c.width=240,Z=5;Z>0;Z-=.1)for(Y=X=-60;X<60;x.fillRect(120+X++/Z*9,45-Y/Z,1/Z*24-Z,99))x.fillStyle=R(Y-=7*C(X*.4^Z+t*6),Z*50-Y,-Y/87<<8)

Jul 3 2018 11:50 PM UTC

}// 139/140

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This one has water - not flat unfortunately. Had to trade off the pseudo-shading to fit the colour change int

u/zanella

OH MY GOD! I stayed out of Dwitter for a couple of days, and suddenly it has become Shader Toy! :)
u/hollo47

This is so good! #landscape
u/sigveseb

with water! #water
u/Cloud

WOOOOOOOOOOOOOOOOOOOOOOOW!!!!
u/rep_movsd

Underrated AF

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aemkei

remix of d/8633 by u/aemkei

function u(t) {

c.width=600;x.font='9em"';for(i=3;i--;x.fillText(T[0]+T[1]+T[2],40,240))(t-(R|0))<i+2?T[i]=[...'💰🔔🍒🍌🍉'][(i*R+9*t|0)%5]:S;onclick=_=>R=t

Jun 18 2018 7:25 PM UTC

}// 135/140

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#slotmachine Click to play!

u/aemkei

136: https://www.dwitter.net/d/8647
u/aemkei

(sorry, the 136 version was not working)
u/aleamb

lol
u/aleamb

nice #game
u/joeytwiddle

#slots

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Xen

remix of d/8544 by u/firegodjr

function u(t) {

t?x.drawImage(c,0,3):x.fillRect(0,0,2e3,2e3)
for(Z=i=350;i--;x.fillRect(i*9-C(t+t-S(i/19-t))*Z-Z,0,Z,2-C(t)))x.fillStyle=R(f=S(i+t)*Z,i,f+i)

Jun 11 2018 7:01 PM UTC

}// 140/140

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u/iverjo

Kudos! Interestingly, this looks very different in fullscreen, without the moiré patterns

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joeytwiddle

remix of d/8393 by u/firegodjr

function u(t) {

for(c.width|=0,i=4e3;i--;x.beginPath())x.globalAlpha=.03,x.arc(S(t*6+i*i/99)*i*i/1e4+960,C(t*6+i/99)*i*i/1e4+540,i/30+2,0,7),x.fill()

Jun 5 2018 9:45 AM UTC

}// 133/140

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Soft spiral happy accident 1

u/hollo47

I'm experiencing some Rorschach thing, that's a dog's face!
u/joeytwiddle

It's curious how a small bug in the spiral code seems to have produced some straight lines

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DataMeta

remix of d/8349 by u/DataMeta

function u(t) {

p=Math.PI;j=(t*960);z=Math.random;m=z();r=z();x.fillStyle=R(T(t*p)*960-360,138*m+128*m,128*m+112*m);x.fillRect(j%1920,j%1080,144*r,144*r)

Jun 3 2018 4:53 AM UTC

}// 137/140

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A few tweaks thanks to sukkamehu's golfing tip

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joeytwiddle

function u(t) {

for(c.width|=k=511;k--;x.fillRect(960-W-500*S(j/41)*C(a),960-j*(i+S(a)),2*W,9))i=k>>5,j=k%32,x.fillStyle='#f7f'+j/5,W=99*S(j/10)*S(a=t+i*17)

May 29 2018 10:12 AM UTC

}// 140/140

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Happy Vesak! https://en.wikipedia.org/wiki/Vesak

u/joeytwiddle

Here is the colourful 3d version: https://codegolf.tk/a/270
u/fujimotos

Lotus!
u/hollo47

This is absolutely beautiful!
u/lionleaf

Amazing! #vesak #flower
u/aleamb

great!!

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hollo47

function u(t) {

c.width|=0;
for(i=-50;i++<50;)
for(j=1;j++<150;)f=33e3*i,h=j*58,
g=60e3+S(j/11+t*2)*9999+C(i/3+t)*9e3,
x.fillRect(960+f/h*3,540+g/h*3,1,1);

May 17 2018 4:10 PM UTC

}// 139/140

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#ocean waves

u/joeytwiddle

Nice, dots on the beach. I used 5,5 so I could see the dots more clearly, and t*=15 for speed

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GeorgesAbitbol

function u(t) {

for(j=0;j<6;j++)
for(i=1;i<7;i++)
x.fillRect(958+80*S((j+i)*t)+170*(i-3.5),170*(j-2.5)+538+80*S((j+(i+1))*t),4,4)

May 16 2018 9:03 PM UTC

}// 113/140

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u/Xen

Love it!
u/hollo47

Beautiful!
u/fujimotos

See the hashtag #multi_dweet for the similar dweets

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nishmatt

function u(t) {

c.width|=0;v=S(t)*S(t);x.translate(800*v,99);n=370;x.arc(n,n,130,v,v*C(t));x.lineTo(n,n);x.fill();x.fillStyle="red";x.fillRect(410,300,9,9);

May 15 2018 2:37 PM UTC

}// 140/140

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#piemonster

u/iverjo

#pacman

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