Dweets awesomed by u/Porpr

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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andrea270872

function u(t) {

I=t*3320%2e3;J=t*94%1e3
i=A=I/2e3;B=J/1e3
for(;i++<13;[A,B]=[A*A-B*B+.3,2*A*B],C=A*A+B*B)
x.fillStyle=R(C*200,0,0,.3)
x.fillRect(I,J,i*=4,i)

Mar 7 2019 8:26 PM UTC

}// 140/140

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Ghost of Julia ver5 (in red)

u/f8f82804

#fractal
u/13thptr

weird rendering:I love it :)
u/andrea270872

thanks... I had to cut a lot of corners to even get something looking like that :D
u/13thptr

#scanline
u/Xen

love it!

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katkip

function u(t) {

r=(X,Y,s)=>{x.fillRect(X,Y,9,-s*8);if(s>1)r(X-s*4,Y-s*2,s/2),r(X+s*4,Y-s*2,s/2)};r(960,960,100)

Mar 7 2019 6:00 PM UTC

}// 95/140

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#recursive

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aoneill01

remix of d/12660 by u/aoneill01

function u(t) {

c.width|=π=3.14;for(φ=0;φ<2*π;φ+=.01)z=f=>Math.abs(f(3*φ)/f(t))**f(t),r=99*(z(C)+z(S)),x.lineTo(962+r*C(φ+t),514-r*S(φ+t));x.fill()

Mar 7 2019 2:19 PM UTC

}// 131/140

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Porpr

function u(t) {

c.width^=0
k=t
w=960
h=600
for(i=0;i<99;i++){k+=5.5
l=5*i
i%2==0?x.closePath():0
x.lineTo(w+C(k)*l,h+S(k)*l)}x.arc(w,1e3,500,1,0)
x.stroke()

Mar 7 2019 2:56 AM UTC

}// 140/140

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Windmill

u/Porpr

How do I mark things as a remix?
u/pavel

You have to make your dweet by editing the one you want to remix and a submit button shows up.
u/Porpr

I see now, thanks.

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tomxor

function u(t) {

eval(unescape(escape`瑼簨挮潵瑥版呍䰽✾㱩湰畴⁩搽漾✬昽湥眠䙬潡琶㑁牲慹⠱⤬椽湥眠䉩杉湴㘴䅲牡礨昮扵晦敲⤬漮潮扬畲㵟㴾学嬰崽漮癡汵攬漮癡汵攽楛そ⹴潓瑲楮木㈩⹰慤却慲琨㘴ⰰ⤮牥灬慣攨⼨㼼㵞⹻ㄲ紩⽧Ⱗ‧⥝⤻`.replace(/u(..)/g,"$1%")))

Mar 7 2019 2:14 AM UTC

}// 138/140

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Float64 Encoder #application

u/tomxor

Enter a number and click away to get the underlying binary64 IEEE754 encoding with a space separating the exponent and significand.
u/tomxor

This uses the new proposed BigInt64Array typed array view to access the binary encoding, so it currently only works in latest chrome.

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Porpr

function u(t) {

c.width^=0
l=a=0
for(i=0;i<2e3;i++){
a+=2.0944+S(t*0.6)*.004
l+=0.2
x.strokeStyle="DARKRED"
x.lineTo(960+C(a)*l,600+S(a)*l)}x.stroke()

Mar 7 2019 1:36 AM UTC

}// 134/140

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TriangleVortex

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tomxor

remix of d/12666 by u/tomxor

function u(t) {

f=_=>S((X*X+Y*Y)**.5*3+t)
eval(unescape(escape`景爨爽ㄶⱣ⹷楤瑨㵩㵲⨳㈻椭㴲⽲㭸⹦楬汒散琨爪⡘⨲⭙⬱㘩Ⱳ⨨堯㈭夫娩ⰶⰹ⤩娽㄰ⵦ⡘㵩┸ⴴⱙ㵩⽲⼴ⴴ⤬砮晩汬却祬攽恈卌⠤筚⨶ぽⰹ㤥ⰵ〥总`.replace(/u(..)/g,"$1%")))

Mar 6 2019 11:49 PM UTC

}// 140/140

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Surface Plot 2 #application

u/tomxor

Mini surface plotter v2! With an actual useful range and colour map this time.
u/tomxor

f=_=>S((S(X)**2+S(Y)**3)*3.14+t)**2
u/magna

Great!
u/mildlybean

Cool!
u/tomxor

#app

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rodrigo.siqueira

remix of d/12665 by u/katkip

function u(t) {

for(i=0;i<799;i++)
x.fillStyle=`hsl(${i},80%,${S(t)*50}%,52%`,
q=i+S(i+t),x.fillRect(960+S(i*S(i+t/q))*i*C(i)*3,540+C(i*S(i))*i*C(i+t),1,1)

Mar 6 2019 10:22 PM UTC

}// 139/140

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Abstract pointillism

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oddgoo

function u(t) {

c.width=1e3;l=255
for(i=470;i>S(t);i--)for(j=0;j<3;j++){x.fillStyle=R(j*l/2,l-j*l,j*l/4);x.fillRect(i*2,S((i+t*59)/30)%(S(t))*l+l+j*9,20,9)}

Mar 6 2019 9:51 PM UTC

}// 140/140

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Sour Waves

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tomxor

function u(t) {

f=_=>S((X*X+Y*Y)**.5*5+t)
eval(unescape(escape`景爨爽ㄶⱣ⹷楤瑨㵩㵲⨱㈻椭㴱⽲㭸⹦楬汒散琨爪⡘⨲⭙⬶⤬爪⡘⼲ⵙ⬳⭚⤬㌬㌩⥚㴱ⵦ⡘㵩┲ⴱⱙ㵩⽲⼶ⴱ⤬砮晩汬却祬攽恈卌⠤筚⨱㈰紬㤹┬㔰╠`.replace(/u(..)/g,"$1%")))

Mar 6 2019 9:35 PM UTC

}// 140/140

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Surface Plot #application

u/tomxor

Mini surface plotter! for visualising 2D scalar fields. Plug your own function into f :)
u/f8f82804

#d3
u/aleamb

wow!
u/katkip

f=_=>S(X*X*t+Y*Y*t)+C(X*X*t-Y*Y*t)
u/tomxor

#app

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