Dweets awesomed by u/iverjo

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: #Food

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rodrigo.siqueira

remix of d/10737 by u/yonatan

function u(t) {

for(i=c.width|=0;i--;x.fillRect(0,610+i+S(t/2),2e3,S(5e3/i)*.4),x.fillStyle=R(0,80,i))x.font='9em"'
x.fillText('🏄',400-S(t)*99,750+C(t)*99)

Nov 6 2018 2:16 AM UTC

}// 139/140

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Surf #emoji #sea #waves

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rodrigo.siqueira

remix of d/10850 by u/yonatan

function u(t) {

c.width=i=w=300
x.font=7*S(t/2)+'em"',x.fillText('🛸',99,m=99)
for(i;i--;x.fillRect(0,i,w,i/w))x.drawImage(c,0,m,w,1,-i*4,m+i,w+i*8,.3)

Nov 5 2018 7:37 PM UTC

}// 134/140

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Alien invasion (flying saucer) #emoji

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yonatan

remix of d/10837 by u/veubeke

function u(t) {

c.width=i=w=300
x.font='6em"',
x.fillText('Shadow',S(t)*99,m=99)
for(i;i--;x.fillRect(0,i,w,i/w))x.drawImage(c,0,m-i,w,1,-i*4,m+i,w+i*8,.2)

Nov 5 2018 4:01 PM UTC

}// 139/140

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u/iverjo

Wow! Nice #shadow technique

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yokljo

function u(t) {

for(a=-22;a<23;a++){
for(b=-30;b<30;b++){
x.fillStyle=R((a+22)*5,a*3+S(t-1)*a)
x.fillRect(960+a*5*(S(t)+1.2),1040-t*60+C(a/14)*b,10,10)
}}

Nov 5 2018 12:22 PM UTC

}// 138/140

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u/f8f82804

#organic #gradient #lighting #shading

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veubeke

function u(t) {

c.width^=0
x.font='200px"',
x.fillText('Mirrored',590,540)
for(i=27;i--;)x.drawImage(c,500,405+i*5,800,5,500+C(i/2+t*8)*8,700-i*5,800,5)

Nov 4 2018 6:48 PM UTC

}// 136/140

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tomxor

function u(t) {

c.width=w=120
for(i=w*33;i--;x.fillRect(i%w,i/w*2,1,2))f=i%w+t*60,n=T(0|(i/w+f^f-i/w)/(t**.7+6)),x.fillStyle=R((n&1)*i/n/8,n**n,(n&3)*i/n/4)

Nov 3 2018 5:53 PM UTC

}// 140/140

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#retro #fractal #game

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u/tomxor

For the lazy game designer... Just add chip tunes and a player :D
u/tomxor

#crt #degauss #sidescroller
u/magna

Awesome!
u/magna

I had a RGB CRT setup, but I hadn't been able to fit any interesting patterns: d/7512
u/tomxor

I had a look at yours magna, they are true crt, much more realistic i think. The scan lines on this are just a sideeffect I exploited and it was easy to add colour distortion in the R().
u/magna

Here we go: d/10843
u/C010011012

is it a cellular automata?
u/tomxor

Yes and no, it's a fractal n=T(0|(i/w+f^f-i/w)/(t**.7+6)) which is just a more elaborate variation of serpinsky triangles to produce more interesting patterns. Some fractals are automata, but not all automata are fractals, see here: https://en.wikipedia.org/wiki/Rule_90
u/tomxor

The implication is serpinsky triangles are computationally reducable, meaning it does not have to be computed in the same way as a cellular automata i.e state can be computed at step t directly without traversing intermidiate steps.

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yonatan

remix of d/10782 by u/yonatan

function u(t) {

for(i=c.width=99;i--;)for(k=j=50;j-->-k;x.fillRect(i,j/2+28,i!=k,j>0?(S(j*j+q/j-t*7)+C(j**5-q/j*6+t)**3)*j/k:S(j*q)<.98))q=i%k-(j>0&i>k)*j/4

Nov 3 2018 1:49 PM UTC

}// 140/140

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Cross your eyes (inspired by https://twitter.com/2DArray/status/105855223…)

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u/tomxor

hah, #stereo #vr dweet
u/magna

Awesome!
u/lionleaf

haha, wow! First time I've seen a dweet in stereoscopic 3D #depth #stereoscopic #crosseyed
u/ldm0

That is awesome!!!
u/joeytwiddle

#hiddengem Cross your eyes and line up the star for 3d!
u/joeytwiddle

#stereograph

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ellisk1

function u(t) {

c.width=99;x.translate(-9,-9);for(j=157;j--;x.rotate(.01))for(i=125;i--;)x.fillRect(i,0,i<72?S((j-t/3)*i/3)/9:C(j*i+t)<.9-(i+2*S(j/2)<75),1)

Nov 2 2018 1:52 PM UTC

}// 140/140

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Surface of the Sun

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pavel

remix of d/10801 by u/f8f82804

function u(t) {

c.width=480
for(k=5;k--;)for(n=7;n--;x.lineTo(240+99*r*S(p=(n<4?n:n-4)/1.6+1.26*k-t),50*r*C(p)+70*(n<4?n:6-n)))r=n%3>0
x.stroke()

Oct 31 2018 8:52 PM UTC

}// 129/140

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u/f8f82804

amazing! #wireframe #d3 #perspective #decahedron #d10
u/f8f82804

oops, looks like this doesn't use any perspective transfrom
u/iverjo

Nice!
u/f8f82804

#pentagonal #trapezohedron

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f8f82804

remix of d/10804 by u/f8f82804

function u(t) {

c.width=480;i=0;for(y of'0111111210121012')x.lineTo(240+y%2*S(p=t-2.5*'0012340010203040'[i++])*(z=400/(3+y%2*C(p))),y*z);x.stroke()

Oct 31 2018 8:28 PM UTC

}// 131/140

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#pentagram -- #d3 #perspective #wireframe

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