Top dweets by u/f8f82804

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: #Opposites

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f8f82804

function u(t) {

x.lineWidth=4
t||x.strokeRect(712,492,496,96)
x.fillStyle=`hsl(${t}rad 90% 50%)`
x.fillRect(720+120*(t%4),500,2,80)

Jul 23 2019 4:38 PM UTC

}// 115/140

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#rainbow #progress -- inspired by https://reddit.com/r/oddlysatisfying/comment…

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f8f82804

remix of d/11753 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;x.fillRect(X/d+960,Y/d,s=45-5e3*d,s))r=i%2+1,d=Math.hypot(X=r*S(ϕ=i/612)*S(θ=i*37-t/r),Y=r*C(ϕ)/.7+4,r*C(θ)*S(ϕ)+5)/1e3

Jan 14 2019 5:22 PM UTC

}// 140/140

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#perspective #sphere #pointcloud #hypot -- the distortion from this projection is clear here, because the two spheres should be concentric but it looks like they aren't

u/metamero

this dweet series is great
u/f8f82804

thanks! I'm having a lot of fun with it. Hopefully I'll be able to fix up the distortion a little and reivist some of these ideas
u/f8f82804

the distortion here is pretty bad because i'm applying the correction incorrectly! see d/11812

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f8f82804

remix of d/11753 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;x.lineTo(X/d+960,Y/d-960))d=Math.hypot(X=S(ϕ=i/612)*S(θ=i*95**.1-t/2),Y=C(ϕ)/.8+3,C(θ)*S(ϕ)+5)/3e3;x.stroke();

Jan 12 2019 12:17 AM UTC

}// 131/140

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building a #hyperbolic #surface by connecting points on a #sphere with lines, rendered with a #d3 #perspective #projection using #hypot

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f8f82804

remix of d/9687 by u/f8f82804

function u(t) {

c.width=640;with(x)for(i=17;j=i^i-->>1;stroke())a=_=>j&_?-1:1,lineTo(320+320*S(b=t+Math.atan2(a(1),a(4)))/(Z=3+C(b)),180+224*a(2)/Z)

Oct 10 2018 9:58 PM UTC

}// 132/140

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using the double-arrow operator (-->>) to generate Gray code and visit vertices of a #cube in order -- #d3 #perspective

u/yonatan

you could use the straight-leg-kick operator (--/) and save a char
u/f8f82804

I figured that the community would appreciate seeing the counterpart of the more common single arrow -->
u/magna

When I'm not sure what I'm doing, I use the wiggly arrow operator <~~
u/f8f82804

#wireframe

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f8f82804

function u(t) {

c.width^=0;with(x)for(i=289;i--;beginPath(fill(arc(0,0,22+18*S(t+(X*X+Y*Y)**.5),0,7))))setTransform(1,0,0,1,60*(X=i%17+8),60*(Y=i/17%17+.5))

Sep 13 2018 3:51 AM UTC

}// 140/140

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#halftone

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f8f82804

remix of d/9591 by u/magna

function u(t) {

s=Array((S(t)+1)*9|0).join` `+Array(9).join`▮`;c.width^=0;x.font='9em x';x.scale(1,3);x.fillText(s,0,200);throw s

Aug 31 2018 4:18 PM UTC

}// 113/140

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#default

u/Purpzie

NO HECKING WAY

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f8f82804

remix of d/9465 by u/prplz

function u(t) {

let s=128;x.setTransform(1,S(t),C(t),1,960,540);for(Y=p=20;Y--+p;)for(X=q=32;X--+q;x.fillRect(X*s,Y*s,s,s))x.fillStyle=(X+Y)%2?'#000':'tan'

Aug 27 2018 6:44 PM UTC

}// 139/140

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f8f82804

remix of d/9340 by u/f8f82804

function u(t) {

c.width=400;y=3-C(t);with(x)font=4/y+'em a',fillText('🌕',200+400*S(t)/y,99+99*C(t)/y),font='2em a',fillText([...'🌍🌎🌏'][t%3|0],188,99)

Aug 23 2018 8:51 PM UTC

}// 133/140

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Fixed the lighting! #perspective #earth #moon #orbit #youarethesun

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f8f82804

function u(t) {

with(x)restore(save(),scale(9,-9),translate(a=98,b=-49),beginPath(clip(rect(t*60%a+b,b,1,a))),clearRect(b,b,a,a),fillRect(b,~rotate(t),a,9))

Mar 30 2020 6:42 PM UTC

}// 140/140

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#rollingshutter effect on a spinning #propeller

u/sigveseb

Kinda trippy

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f8f82804

remix of d/855 by u/mxfh

function u(t) {

eval(unescape(escape`𭀿𬰽𚁣𛡷𪑤𭁨𧠽𫱮𫑯𭑳𩑭𫱶𩐽𧰽🡢👟𛡸𚐯𝀺𨐽𨠽𜐮𝐷𞱦𫱲𚁱👲👡𞰨𬐭🐱𛱳𚐾𛑡𞱸𛡬𪑮𩑔𫰨𠰨𬐫𨠯𞐹𚐪𤰨𬠭𭀩𚡳𚰲𚡳𛀨𠰨𭀫🐱𛱳𚐪𤰨𬐩𚱃𚁱𚐪𠰨𬠭𭀩𚐪𬰫𬰩𚑲𚰽𨐻𮀮𬱴𬡯𪱥𚀩`.replace(/u../g,'')))

Nov 8 2019 5:13 PM UTC

}// 118/140

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#interactive #mouse #remix

u/kimeiga

wow i would love to learn how this magic works :o incredible!

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