Top dweets by u/Pascal

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: #ScaryMovies

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Pascal

remix of d/22689 by u/Pascal

function u(t) {

c.width|=w=480;for(j=2;j--;)for(i=k=500;i--;x.fillRect(w+w*3*(C(i+t)*C(a))/Z+w*j*2-Z*12*j,w-3*(S(a))/Z*w,s=k/Z**2/2,s))Z=4+S(i+t)*C(a=i/.9)

May 9 2021 9:12 PM UTC

}// 139/140

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#stereograph #d3 cross eye sphere, make Z negative to flip the 3D effect

u/Polyducks

Wow incredible

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Pascal

function u(t) {

for(c.width|=i=w=1e3;i--;x.lineTo(w+w*(C(i+44/7*(.5+S(t+i/w/9)/2)**9)+C(i/6+t))/z,w/2-w*(S(i)+S(i/6+t))/z))z=S(i)-5
x.stroke()

Mar 4 2021 6:24 PM UTC

}// 126/140

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u/Xen

nice!

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Pascal

function u(t) {

k='φ';eval(unescape(escape`𨰮𭱩𩁴𪁼👦🐱𒡦𫱲𚁩👍𨑴𪀮𩡬𫱯𬠨𭀩𞱩𛐭𞰩𩠽𜐫𜐯𩠊𮀮𩡯𫡴🐢𝰰𬁸𙰢𒡸𛡦𪑬𫁔𩑸𭀨𪰫𙰠🐠𙰫𩠬𜠰𛁰🐵𝀰𚐊𩡯𬠨𪐽𜀻𪐼𝀰𜀻𪐫𚰩𩀽𚁩𛰨𝀰𜀭𜐩𚐪𚠮𝐬𮀮𩡩𫁬𤡥𨱴𚀱𜰶𜀭𬀪𩀪𠰨𨐽𜠪𣑡𭁨𛡐𢐪𩠪𪐩𛁰𛑰𚡤𚡓𚁡𚐬𞀬𞀩`.replace(/u../g,'')))

Jan 22 2021 7:58 PM UTC

}// 140/140

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calculating the golden ratio

u/danny@hille.dk

nice

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Pascal

function u(t) {

for(c.width|=j=2;j--;x.stroke(),x.beginPath())for(i=w=1e3;i--;x.lineTo(500+z*j*16+w*j+w*2*C(a)/z,540+w/2*(S(i*5)+2*S(i*8))/z))z=S(a=i-t)-6

May 21 2021 10:10 PM UTC

}// 138/140

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#stereograph #d3 cross eye 3D object

u/rep_movsd

Beautiful
u/rep_movsd

Beautiful
u/rep_movsd

You can switch clockwise and anticlockwise rotation in your brain if you try hard
u/joeytwiddle

To tilt it downwards, change 540 to 540+99*S(a)

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Pascal

function u(t) {

c.width|=0;
for(X=48;X--;c.style.filter='blur(5px)contrast(99')for(Y=27;Y--;x.fillRect(40*X,40*Y,40,40))x.globalAlpha=.5+S((X+1)*(Y+1)+t)/2

Jan 10 2021 8:54 PM UTC

}// 139/140

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u/katkip

*O*
u/danny@hille.dk

hehe nice

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Pascal

function u(t) {

eval(unescape(escape`𭀯🐲𞱦𫱲𚁣𛡷𪑤𭁨𯀽𪐽𜐲𜀻𪰽𛐭𪐪𚠮𜠻𚑸𛡤𬡡𭱉𫑡𩱥𚁤𫱣𭑭𩑮𭀮𩱥𭁅𫁥𫑥𫡴𬱂𮑔𨑧𣡡𫑥𚀢𨱡𫡶𨑳𘠩𦰨𪐥𝀩𧐬𜐶𜀪𚁩𙑫𚠷𚐫𞐹𚰵𜀪𤰨𛠰𜐪𪐪𭀩𛐴𜀰𛀨𭀫𚰥𪰪𝠰𜀩𚠱𛠸𛐲𜀰𛀳𜠰𛀱𞐲𚐻𮀮𩁲𨑷𢑭𨑧𩐨𨰬𜀬𜀬𜐹𜠰𛀲𩐳𚐠`.replace(/u../g,'')))

Jan 3 2021 8:06 PM UTC

}// 135/140

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well well well #fps #glitch

u/DataMeta

this is mad and I love it
u/tomxor

!! crazy, FF users: only works in chrome

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Pascal

remix of d/22362 by u/BackendForth

function u(t) {

c.width|=w=480;for(j=2;j--;)for(i=k=300;i--;x.fillRect(w+w*X/Z+w*j*2+Z*12*j,w-Y/Z*w,s=k/Z**2,s))X=3*C(U=i+t)+C(V=i*i),Y=S(i)+S(V)+1,Z=S(U)-5

May 1 2021 1:43 PM UTC

}// 140/140

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#stereograph #d3 donut, cross your eyes for a 3D effect

Show more comments…
u/erin

so cool
u/BackendForth

Nice!
u/magna

Nice! The z is inverted for me...
u/tomxor

Neat. Magna, are you uncrossing your eyes by any chance? :P (i.e making your eyes further apart)
u/magna

u/tomxor yeah! I've gotten used to relaxing my eyes and looking "afar", from the way SIRDS normally work. I don't I can cross my eyes without looking at something actually close to my eyes. I suspect most people are more comfortable with relaxing their eyes than crossing them...
u/smtsjhr

so fun!
u/joeytwiddle

If you are a person like magna, change: fillRect(w to fillRect(3*w and +w*j to -w*j

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Pascal

remix of d/21743 by u/Pascal

function u(t) {

for(c.width|=i=w=1e3;i--;x.strokeStyle=`#05a5`)x.lineTo(w+w*4*C(a=i-t)/(z=S(a)-6),540+w*(S(i*5)+2*S(i*8))/z*.8)
x.stroke()

Feb 22 2021 8:56 PM UTC

}// 123/140

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spinning #d3 thing

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Pascal

function u(t) {

f=(X,Y,n=100)=>Math.abs(X+Y)<3&&n>0?f(X*X-Y*Y-1.41,2*X*Y,--n):n/100
for(i=1080;i--;)x.fillRect(X=t*120,1080-i,2,(1-f(X/9e3+.1,i/9e3)**2)**2)

Feb 5 2021 2:42 PM UTC

}// 140/140

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trees

u/jellyedwards

Very nice! -5 chars (X+Y)**2<9
u/joeytwiddle

(X+Y)**2*n? seems to work, although I don't understand it

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Pascal

remix of d/21425 by u/Pascal

function u(t) {

f=(X,Y,n=64)=>Y-X<n?f(X*X-Y*Y-.3,2*X*Y+.7,--n):255-n*4
for(i=2e3;i--;x.fillRect(t*180,i,6,1))x.fillStyle=R(f(t/55.56-.4,i/1e4-.24),30,60)

Jan 28 2021 1:31 PM UTC

}// 137/140

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neon flowers

u/rep_movsd

Garden of Dormamu
u/aleamb

#fractal

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