Top #opticalillusion dweets

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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ciaccodavide

remix of d/20865 by u/ciaccodavide

function u(t) {

for(c.width|=i=192;i--;)x[s='fillStyle']=`hsl(0,0%,${i*.6}%`,x.fillRect(i*10,0,192,2e3)
x[s]=`grey`
x.arc(960+S(t)*500,540,400,0,7)
x.fill()

Nov 30 2020 11:59 AM UTC

}// 140/140

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Same Grey Circle

u/ciaccodavide

#illusion
u/DataMeta

fun. we explored this #opticalillusion differently :) d/15843 #gradient
u/joeytwiddle

To add a second ball: x.arc(960-S(t)*500,540,300,0,7)

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metamero

remix of d/14452 by u/metamero

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁩🐭𜐬𩡯𫡴🐢𜰲𜁰𮀠𠑲𪑡𫀠𠡬𨑣𪰢𞱩𚰫🀹𞐻𭀿𜀺𪐦𙡩🀴🱩𧠳🱦𪑬𫁔𩑸𭀨𪑞𜐿𘡧𬡥𩑮𘠺𘡩𫁬𭑳𫱲𮐢𛀹𞐬𪐪𝀲𜀩𞡲𫱴𨑴𩐨𛠷𞀵𚐺𩡩𫁬𤡥𨱴𚁩𚠲𜰭𞐹𛀭𜡥𜰬𪐿𜐳𞠲𩐳𛀴𩐳𚐩𩡩𫁬𤱴𮑬𩐽𪐿𪐾𜰿𘠣𜁆𡠢𞠢𘰰𜀰𘠺𘠣𜀰𡠢`.replace(/u../g,'')))

Jun 5 2019 9:08 PM UTC

}// 138/140

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"緑錯視" by Akiyoshi Kitaoka

u/metamero

#illusion #opticalillusion see d/14452
u/metamero

http://www.psy.ritsumei.ac.jp/~akitaoka/colo…
u/Xen

if you tell me theres no green used here... thats where it all ends! i will walk the streets naked setting fire to things lol
u/metamero

u/Xen goto fullscreen and see the text closely. this is composed only with blue, black and cyan ;)

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KilledByAPixel

function u(t) {

c.width+=0;for(i=999;i--;)N=150*S(t+i/2),Y=3*N,X=800*S(i/3),x.beginPath(),x.fillStyle=R(99+N,0,99*S(i)),x.arc(960+X,540+Y,40,0,7),x.fill()

Apr 11 2019 11:12 PM UTC

}// 138/140

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Weird shapes.

u/KilledByAPixel

Here it is in the ADE... http://www.3d2k.com/js/dweetgen/?a0=1&a1…
u/KilledByAPixel

Cant figure out if this is rotating around the vertical or horizontal axis.
u/joeytwiddle

If you can't see both rotations, Slacklustre's GIF may help: https://www.reddit.com/r/illusionporn/commen…
u/KilledByAPixel

#illusion #opticalillusion

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metamero

remix of d/11217 by u/metamero

function u(t) {

eval(unescape(escape`景爨稽㜲Ᵽ⹷楤瑨簽欽〻欼㐴㤻⬫欩椽款㸴ⱪ㵫☱㔬瀽稪椬焽稪樭稬⠨椫権┲㽸⹲散琨瀬焬稬稩㨰⤬砮牥捴⡰⬴ⱱ⬴⭺⩃⡴⤪⨨欥㜩ⰲ〬㈰⤬砮牥捴⡰⬴㠬焫㐸⭺⩓⡴⤪⨨欥㔩ⰲ〬㈰⤻砮晩汬⠧敶敮潤搧⤻`.replace(/u(..)/g,"$1%")))

Nov 30 2018 9:17 PM UTC

}// 138/140

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#Trippy #Illusion by [metâmero]

u/metamero

for(z=72,c.width|=k=0;k<449;++k)i=k>>4,j=k&15,p=z*i,q=z*j-z,((i+j)%2?x.rect(p,q,z,z):0),x.rect(p+4,q+4+z*C(t)**(k%7),20,20),x.rect(p+48,q+48+z*S(t)**(k%5),20,20);x.fill('evenodd');
u/iverjo

#opticalillusion

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kooga

function u(t) {

a=5;b=1+parseInt(t*2,10);d=100;
c.width=a*d;
for(i=0;i<120;i+=1){
for(j=0;j<120;j+=1){
if(i*j%b)x.fillRect(i*a,j*a,a,a)
}
}

Oct 6 2019 3:19 AM UTC

}// 123/140

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divibility!

u/metamero

incidental #opticalillusion #ScintillatingGridIllusion

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metamero

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁩🐭𜐬𩡯𫡴🐢𜰲𜁰𮀠𠑲𪑡𫀠𠡬𨑣𪰢𞱩𚰫🀹𞐻𭀿𜀺𪐦𙡩🀴🱩𧠳🱦𪑬𫁔𩑸𭀨𪑞𜐿𘡹𩑬𫁯𭰢𞠢𪑬𫁵𬱯𬡹𘠬𞐹𛁩𚠴𜠰𚐺𬡯𭁡𭁥𚀮𝰸𝐩𞡦𪑬𫁒𩑣𭀨𪐪𜠳𛐹𞐬𛐲𩐳𛁩🰱𜰺𜡥𜰬𝁥𜰩𚑦𪑬𫁓𭁹𫁥👩🱩🠳🰢𘱆𡡆𘠺𘠣𝐵𝐢𞠢𘰰𜁆𘠻`.replace(/u../g,'')))

Jun 5 2019 9:02 PM UTC

}// 139/140

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"Illusory yellow distortion" by Akiyoshi Kitaoka

u/metamero

"If observers approach or move away from the image fixating at the center, then the words appear to be distorted."
u/metamero

uncompressed: with(x)for(i=-1,font="320px Arial Black";i++<99;t?0:i&&i<4?i^3?fillText(i^1?"yellow":"illusory",99,i*420):rotate(.785):fillRect(i*23-99,-2e3,i?13:2e3,4e3))fillStyle=i?i>3?"#FFF":"#555":"#00F";
u/metamero

#illusion #opticalillusion
u/metamero

d/14455 animated version

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ciaccodavide

function u(t) {

eval(unescape(escape`𭁼𯁸𛡦𪑬𫁒𩑣𭀨𜀬𜀬𭰽𜡥𜰬𭰬𬠽𣑡𭁨𛡲𨑮𩁯𫐩𒡦𫱲𚁮🐳𩐳𞱘👲𚀩𚡷𛁙👲𚀩𚡷𛁤👍𨑴𪀮𪁹𬁯𭀨𦀭𞐶𜀬𦐭𝐴𜀩𛰹𛁮𛐭𞰩𮀮𩡩𫁬𤡥𨱴𚁘𛁙𛀴𛁴🀱𛁸𛡦𪑬𫁓𭁹𫁥👒𚀨𩀼𜰰𚐪𭰬𜀬𚁤🠳𝠩𚡷𚐩`.replace(/u../g,'')))

Dec 9 2021 10:46 AM UTC

}// 121/140

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#illusion #opticalillusion

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KilledByAPixel

function u(t) {

with(x)for(c.width|=q=i=640,font='9em"',fillText('Dual Axis Rotation',400,170);i--;)beginPath(fill(arc(960+q*S(i*2),q+350*C(t+i*3),30,0,7)))

Dec 10 2019 4:50 AM UTC

}// 140/140

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I am in the top 10 Best Illusions of the Year! Help me win by voting at: http://illusionoftheyear.com/vote

u/katkip

i voted
u/katkip

it's a good find
u/metamero

wow! impressive. voted
u/metamero

#illusion #opticalillusion
u/KilledByAPixel

i won ;)

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katkip

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐮𨡡𨱫𩱲𫱵𫡤👠𘰶𜀶𨀻𩠽𚁘𛁙𛁒𚐽🡻𩡯𬠨𪐽𜰻𪐭𛐻𚑸𛡢𩑧𪑮𤁡𭁨𚁸𛡦𪑬𫁓𭁹𫁥👛𘠣𩡦𜀢𛀢𘰰𜀰𘠬𘠣𩡦𩠢𧑛𪑝𚐬𮀮𩑬𫁩𬁳𩐨𦀫𤰨𪐪𜠩𚠱𝐬𦐬𜰰𛀲𜀬𤠬𜀬𝰩𛁸𛡦𪑬𫀨𚑽𞱦𫱲𚁪🐱𝀻𪠭𛐻𚑦𚀲𜀫𭀪𝀹𞐹𛁪𚠸𜀬𪠯𜰫𭀪𜰩`.replace(/uD./g,'')))

Oct 10 2019 3:04 PM UTC

}// 137/140

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#opticalillusion #compressed

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DataMeta

remix of d/15839 by u/DataMeta

function u(t) {

s=C(t);c.style.background=R(g=s*255,g,g);if(t<3)for(i=1920;i--;)
x.fillStyle=R(l=i/7.5,l,l),x.fillRect(t*s>=0?1918-i:i,540-g,4,4)

Sep 29 2019 4:55 AM UTC

}// 129/140

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#gradient #illusion

u/katkip

nice
u/iverjo

#opticalillusion

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