New #flag 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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f8f82804

remix of d/9185 by u/f8f82804

function u(t) {

c.width=500;a=29;for(i=240;α=C(T=i/a-t),i--;)for(j=6;j--;x.fillRect(i,a+j*a+S(T)*7,1,30))x.fillStyle=`hsl(${a*j**1.4} 99%${9+a*(0<α)*α**2}%`

Aug 9 2018 9:22 PM UTC

}// 140/140

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Remix #rainbow #flag with improved palette and #phong #shading with better shadows- - #pride #pbr

u/f8f82804

Correct shadows are implemented with the 0<α factor. To golf this in, I had to drop the diffuse reflection term and reuse constants. Palette improvements just took tweaking without extra characters.
u/f8f82804

Loop restructuring also give a very slight FPS improvement.

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f8f82804

remix of d/9180 by u/f8f82804

function u(t) {

c.width=500
for(j=6;j--;)for(i=255;i--;x.fillRect(i,50+j*25+S(T=i/35-t*3)*7,1,26))x.fillStyle=`hsl(${32*j**1.3} 90%${23*(1+(a=C(T))+a**5)}%`

Aug 9 2018 2:54 PM UTC

}// 140/140

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#rainbow #phong #flag - - #pride #pbr

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f8f82804

remix of d/8882 by u/BalintCsala

function u(t) {

c.width=500
for(j=3;j--;)for(i=255;i--;x.fillRect(i,50+j*65+S(T=i/35-t*3)*i/20,1,66))x.fillStyle=`hsl(${120*j} 90%${25*(1+(a=C(T))+a**5)}%`

Aug 9 2018 5:53 AM UTC

}// 139/140

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#phong #flag #pbr

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joeytwiddle

function u(t) {

['#000','#ff0','#39f','#fff'].map((C,i)=>x.beginPath(x.fillStyle=C)|x.arc(i%2?1050*i-1490:960,i<3?540:840,2310-1305*i+195*i*i,0,7)|x.fill())

Aug 5 2018 9:45 AM UTC

}// 140/140

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James W. Cadle's Flag of _____, with help from mycurvefit.com #flag

u/joeytwiddle

I think this might have been drawn on Dwitter before, but I can't find that dweet right now. I love the simple design!
u/katkip

Me too! It's minimalistic.
u/joeytwiddle

A fun TED talk about flag design: https://www.youtube.com/watch?v=pnv5iKB2hl4

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BalintCsala

remix of d/8880 by u/BalintCsala

function u(t) {

c.width=500
for(i=900;i--;x.fillRect(i/3|0,50+i%3*65+S(T)*i/60,1,66))H=(C(T=i/99-t*3)*i/900+1.2)*127,x.fillStyle=R(i%3||H,i%3-1||H,i%3-2||H)

Jul 17 2018 3:39 PM UTC

}// 140/140

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Improved it a bit

u/iverjo

#flag

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BalintCsala

function u(t) {

c.width=500
for(j=3;j--;)for(i=300;i--;x.fillRect(i,50+j*65+S(T=i/35-t*3)*i/20,1,66))x.fillStyle=R(...[[H=(C(T)+1.2)*127],[,H],[,,H]][j])

Jul 17 2018 3:12 AM UTC

}// 137/140

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RGB flag with accurate lighting

u/joeytwiddle

#flag = hashtag hashflag

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pythech

remix of d/8490 by u/pythech

function u(t) {

x.beginPath()
x.fillStyle=R()
c.width|=0
for(i=1e2;--i;) {
x.arc(C(i**(-i)-t)*400+900,C(i)*400+500,19,0,9)
}
x.fill()

Jun 7 2018 5:06 PM UTC

}// 117/140

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u/iverjo

#flag
u/S.T.L.K.R.

#oha

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BalintCsala

function u(t) {

c.width=500
for(i=3;i--;)for(j=99;j--;)(x.fillStyle=`hsl(${i*120},99%,${60+(H=S(t*2+(j/20))*9*(1-j/120))}%`,x.fillRect(50+j,50+i*20+H,1,23))

Mar 26 2018 4:14 PM UTC

}// 140/140

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Waving flag (of something) with shading

u/joeytwiddle

Nice work! I managed shading and colours before, but not both together. d/3161
u/iverjo

#flag

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prplz

function u(t) {

c.width|=0;x.scale(20,20);for(i=96,t*=2;i--;)for(j=54;j--;)if((i^j)&8)x.fillRect(i+S(t+j/9),j+S(t+i/9),z=1.11,z)

Mar 4 2018 3:22 AM UTC

}// 112/140

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u/akm

your use of bitwise operator's pretty cool!!
u/dwitter

looks pretty good
u/geb

#background
u/UEZ

#flag

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frostycpu

function u(t) {

for(i=648,f=a=>233*a-9*m,c.width=4e2;n=i%36,m=S(t*9-n),i--;x.fillRect(99+5*n,75+5*(i/36|0)+m,5,6))x.fillStyle=R(f(1),f(o=i<324),f(o))

Jan 7 2018 2:03 PM UTC

}// 133/140

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u/iverjo

#flag

dwitter.net | #flag