New #Rainbow 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.

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Current theme challenge: #Opposites

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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/9154 by u/f8f82804

function u(t) {

for(β=s=314;β--;x.fillStyle=`hsl(${β+t}rad 90%${30*(1-(γ=C(α-1)*C(β))-γ**9)}%/${β/a}`)x.fillRect(s*S(α=β/200)*S(β)+960,s*S(α)*C(β)+s,a=53,a)

Aug 9 2018 6:09 PM UTC

}// 140/140

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Tweaked #sphere parameterization with occlusion, z-buffer and #phong #shading -- #rainbow #d3 #pbr

u/f8f82804

#blending

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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/9163 by u/f8f82804

function u(t) {

X=frame%240;for(Y=64;Y--;)x.fillStyle=`hsl(${90*S(t)*Y/(k=Y-72)} 90%${50*((X-120)/k+9+(frame/240|0)&1^Y/k&1)}%`,x.fillRect(X*8,1080-Y*8,8,8)

Aug 8 2018 11:39 PM UTC

}// 140/140

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#rainbow #checkerboard -- #d3 #raytrace #scanline #smooth

u/katkip

This is less laggy

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f8f82804

function u(t) {

c.width=1920
for(i=314;x.fillStyle=`hsl(${99*t+i},90%,50%)`,i--;)x.fillRect(100*S(α=i/100)*S(β=t+i/7)+960,90*-C(α)+40*S(α)*C(β)+540,10,10)

Aug 7 2018 5:27 PM UTC

}// 138/140

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u/lionleaf

#sphere #rainbow

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richev

function u(t) {

x.lineCap='round'
x.lineWidth=20*t
x.beginPath()
c=6.28*t-1.5
x.strokeStyle=`hsl(${t*72},99%,60%)`
x.arc(960,540,270,c,c+.2)
x.stroke()

Aug 5 2018 6:54 AM UTC

}// 135/140

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Expanding rainbow loop

u/lionleaf

Very satisfying to watch #rainbow #donut

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firegodjr

remix of d/9106 by u/richev

function u(t) {

with(x)for(i=320;i--;stroke(),font="500pt x",fillText('☁️',i%2*a,a))beginPath(x.strokeStyle=`hsl(${-i-40},99%,60%`),arc(a=960,800,i+360,3,0)

Aug 5 2018 1:47 AM UTC

}// 140/140

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Challenge accepted ^^

u/iverjo

Haha, I knew someone would accept that challenge ^^
u/lionleaf

#rainbow #clouds

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Xen

remix of d/9040 by u/firegodjr

function u(t) {

with(x)for(font="99px'",Z=i=1e3;i--;fillRect(S(l=t*i%i)*i+Z,C(l)*i+Z,v,-v*v),fillText(`🙀`,Z,Z))fillStyle=`hsl(${i},99%,${v=S(i/Z-t*5)*99}%`

Aug 1 2018 6:08 PM UTC

}// 139/140

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Bit of a dodgy De-Make but... theres a cat ;)

u/firegodjr

Honestly I like this one better, haha. It has lots of style in the color transitions. :D
u/aleamb

lol!
u/katkip

#cat
u/lionleaf

#emoji #rainbow #laser

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katkip

function u(t) {

for(c.width=i=800;i--;x.fillStyle=`hsl(${i+t*50},99%,50%`)x.fillRect(S(i/99+t/1)+1/(z=i/200)-(w=z*400)/2,(99+S(i/50-t)*60)/z+200,w,t/z);

Jul 30 2018 10:34 AM UTC

}// 136/140

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The magic carpet

u/d0n.key

That's a pretty gay carpet you got there. ( I like it though :D )
u/katkip

XD
u/lionleaf

#rainbow #carpet
u/username

#best dweet for me definitely
u/username

#music

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firegodjr

remix of d/8393 by u/firegodjr

function u(t) {

with(x)for(c.width|=i=1e3;i--;beginPath())fillStyle='hsla('+i+',99%,50%,10%',x.arc(S(t+i/50)*i+960,C(t*2+i/50)*i+540,i/9+2,0,7),fill()

Jun 20 2018 4:10 PM UTC

}// 134/140

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u/magna

WOW!
u/magna

#spiral
u/firegodjr

credit goes to u/BirdsTweetCodersDweet for the og spiral ^^
u/joeytwiddle

#rainbow

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