Dweets awesomed by u/PotatoImaginator

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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New_Core

remix of d/17584 by u/New_Core

function u(t) {

c.style.filter=`blur(60px)contrast(2e3)`
for(i=11;i--;x.fillRect(960+600*S(t+i),440+400*C(t+i*.6),200,200))x.fillStyle=`hsl(${i*t},99%,50%)`

Feb 12 2020 5:28 PM UTC

}// 140/140

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color experiment

u/Xen

Goes nice to most Deeprot ;-)
u/andrea270872

cool, looks like a lava lamp!
u/DataMeta

Ooh neat! #waitforit

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rodrigo.siqueira

remix of d/17554 by u/rodrigo.siqueira

function u(t) {

for(k=99,c.width=i=-7;++i<9;R=a=>x.lineTo(k+a*k/(z=j-t*5%1),k*S(j+t*5&a|9)/z-50*C(t)+k))for(j=k;x.beginPath(x.stroke()),R(i),--j;R(i+1))R(i)

Feb 11 2020 3:01 PM UTC

}// 140/140

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#wireframe landscape flight simulation #d3 based on u/jylikangas' code

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KilledByAPixel

remix of d/17468 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𭀥𝐼𜐿𣰽𦱻𦀺𭀪𞀹𛁙𞠱𩐳𛁡𞠰𛁢𞠰𯑝𞡏𛡭𨑰𚁯🐾𮀮𩡩𫁬𤡥𨱴𚁯𛡘𛁯𛡙𛁱🐨𨠽𚰫𫰮𨠩𚠪𛠷𛁱𛁢🐽𜡼𠰨𚰫𭀪𭀩🠮𞐹𞐹𞐶🱏𛡰𭑳𪀨𮱘𞡯𛡘𛐸𚡓𚁡👯𛡡𚐬𦐺𫰮𦐭𞐪𠰨𨐩𛁡𞡡𚠮𞐫𚁢𛐲🰳𞠮𜠩𚡓𚀫𚱴𚡴𚐬𨠺𜁽𚐺𮀮𩡩𫁬𤱴𮑬𩐽𤠨𨠬𨠯𜠩𚐩`.replace(/u../g,'')))

Feb 4 2020 6:05 AM UTC

}// 140/140

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Color Tree #growth

u/KilledByAPixel

#tree

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DaSpider

function u(t) {

throw(C(2*t)>0?'❤':'💔')+(C(2*t)>0?'▒':'░').repeat(S(2*t)*12+12)+(C(2*t)>0?'😁':'😟')

Feb 3 2020 8:21 AM UTC

}// 82/140

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#growth

u/zungl

Change <3 to 8==D

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rodrigo.siqueira

remix of d/17426 by u/rodrigo.siqueira

function u(t) {

for(i=880;i--;x.fillStyle=R(Y/2.5-r/(350+S(t*2)*300),0,r/2000,.8))x.fillRect(X=S(r=i*i)*i*3+i*C(t*3)+900,Y=C(r)*i+390+S(t*2)*i/3,i,i)

Jan 31 2020 6:05 PM UTC

}// 133/140

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Underwater lava cave #perspective

Show more comments…
u/tomxor

I keep switching perception between cave and mountain top, it gets stuck on mountain top... i can't control it 😳
u/sigveseb

I don't see mountain top 🤔 how?!
u/tomxor

funny, i can't see anything else now... it;s like looking down from above a mountain peak. Maybe imagine you are looking down from a circling helicopter.
u/rodrigo.siqueira

This #illusion is called "bistable perception". When I posted it was looking like a cave, now it seems to keep changing between mountain top and cave. I prefer a cave.
u/sigveseb

yes, I see it now!
u/rodrigo.siqueira

#tunnel
u/joeytwiddle

To see the mountaintop, maybe look at the blue and imagine it is the floor or the sea, far away.

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KilledByAPixel

remix of d/15354 by u/KilledByAPixel

function u(t) {

for(w=i=125;i--;)for(j=0;j<8;x.fillRect(i*20,j++?w*j+299*C((t*j*j+i/j|0)**3)/j:0,20,3e3))x.fillStyle=`hsl(${j**4-149} ${j*7}%${29*C(j)+39}%`

Jan 27 2020 1:44 AM UTC

}// 140/140

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City Outskirts

u/tomxor

Nice, you got the colours just right, I couldn't quite figure that bit out. #city
u/pavel

Just a black screen on Safari
u/KilledByAPixel

fixing up the hsl to have commas and closing paren may fix some browsers
u/tomxor

Safari is wrong, they should this dweet as a unit test :)

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rodrigo.siqueira

remix of d/17175 by u/pavel

function u(t) {

for(i=c.width|=p=1.571;i--;x[i&5?'arc':'moveTo'](960,540,2e3/z,b=p*((i>>3)+S(i*p)/1.5-.4+z/.3),b))z=1+(i>>5)+C(i*p-t/8);x.fill()

Jan 13 2020 5:09 PM UTC

}// 128/140

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Spiral interferences

u/rodrigo.siqueira

#spiral broken glass

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veubeke

remix of d/17174 by u/veubeke

function u(t) {

i=t*60|0,X=i%64,Y=i>>6,Y<19&&x.fillRect(48*X,1024+448*(X>7&X<32)-56*Y,Y%8>5&&X>2&X<5|X>34&X<37||Y>17&X+1>>1|Y<13&X>16&X<23?0:X+Y&1?48:40,48)

Jan 12 2020 9:03 PM UTC

}// 140/140

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Building a #castle

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rodrigo.siqueira

remix of d/13119 by u/rodrigo.siqueira

function u(t) {

c.width+=X=Y=Z=d=.04
for(i=6e3;i--;)X+=-d*(Y+Z),
Y+=d*(X+.2*Y),
Z+=d*(.2+Z*(X-5)),
x.lineTo(980+80*(X*C(t)-Y*S(t)),800-Z*48+Y*19)
x.stroke()

Jan 12 2020 12:43 AM UTC

}// 140/140

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Turning Rössler Strange Attractor, a system of three non-linear ordinary differential equations with chaotic dynamics and fractal properties. Some people see this turning clockwise, some see counterclockwise due to the bistable optical illusion (search "Spinning Dancer" for explanation). #attractor #illusion

u/rodrigo.siqueira

The rotation effect trick X*C(t)-Y*S(t) was "borrowed" by Frank Force KilledByAPixel's #Lorenz Attractor: from https://www.dwitter.net/d/14752

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pavel

remix of d/17103 by u/pavel

function u(t) {

h=n=>n&&x.isPointInPath(X+R*C(n),Y+R*S(n))|h(n-1)
R<169&&!h(99)?x.arc(X,Y,R,0,7,x.moveTo(X+R,Y,R+=8)):(X=t%20*96,Y=X**5%1080,R=2)
x.stroke()

Jan 10 2020 3:32 AM UTC

}// 140/140

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isPointInPath

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