New #shading 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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New_Core

function u(t) {

c.width=-1
for(i=400;i--;)x.fillRect(20*C(b=(i/(q=50*S(t*.8+i/99)+150)+t)%1.58+i%2*1.58)-(d=40*S(b)/2)+q,a=~~(i/2),d*2,b/2+.1)

Oct 7 2018 2:21 PM UTC

}// 126/140

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my first twister...=)

u/iverjo

Nice #twister
u/joeytwiddle

It's a very good one #lighting #shading

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yonatan

remix of d/9644 by u/yonatan

function u(t) {

c.width=-1;for(j=2e3;j--;x.fillRect(99+9*S(a=j/1250)*S(j)+50*S(m=t*3+a),75+25*(S(-a*5)+1)*C(j),3,7))x.fillStyle=R(q=(j&128)-C(j)**3*99,q,q)

Sep 3 2018 4:41 PM UTC

}// 139/140

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Show more comments…
u/joeytwiddle

In 140, with #lighting/#shading? Amazing!
u/yonatan

Thanks, not very fishy tho (the shading). Most of the 44 extra bytes in the compressed version were the XY rotation.
u/joeytwiddle

Some #fish are black and white. Just not the ones in camera adverts and holiday brochures ;-)
u/donbright

shading is amazing
u/yonatan

@joey - it's not the color that bothers me, it's the lack of (specular) scales
u/joeytwiddle

Haha ok. #organic #sea #model
u/vain

I just don't have any words! Incredibly awesome !!

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BalintCsala

remix of d/9613 by u/BalintCsala

function u(t) {

c.width=-1
for(i of"201")x.fillStyle=R(i*T+(K=t%(p=1.57))/p*T),x.fill(new Path2D("M"+[T=99,0,(A=S(z=K+p*i)*T)+T,T-C(z)*33,T+C(z)*T,T+A/3]))

Aug 31 2018 11:11 PM UTC

}// 139/140

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Uncompressed version achieved with lots of help from u/yonatan

u/f8f82804

#d3 #shading #animated #path2d
u/katkip

Haha nice!
u/aleamb

coooooool
u/lionleaf

#pyramid
u/donbright

ha ha ha brilliant

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f8f82804

remix of d/9534 by u/f8f82804

function u(t) {

with(x)for(i=3;--i;beginPath(fill(lineTo(960*i+i%2*320*(t%6-3),h))))fillStyle=`hsl(32 50%${30+t%6*i+6*i}%)`,moveTo(960,340),lineTo(0,h=1080)

Aug 29 2018 7:41 PM UTC

}// 140/140

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Rotating pyramid. Thanks to u/yonatan for help with the colors! #shading

u/katkip

Yes! That's exactly what I originally wanted to do! (but i'm more stupid lol) Nice done!
u/aleamb

very smart!
u/katkip

That's genius! The colors illusion

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yonatan

remix of d/9345 by u/yonatan

function u(t) {

f=f=>(f(i)+f(z=i**.5)+f(t))*i/15-w
for(x[r='fillRect'](e=C(t),w=-600,i=2e3,i);i--;x[r](f(S)-e*w,f(C),z,z))x.fillStyle=R(q=(3-C(e-i))**4,q,q)

Aug 26 2018 9:07 PM UTC

}// 140/140

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u/f8f82804

#shading
u/joeytwiddle

Very cool! #lighting
u/firegodjr

Amazing!
u/DataMeta

Shader w/o compression is massively impressive
u/aleamb

incredible..
u/lionleaf

Very impressive! #d3 #snail #light
u/iverjo

Wow!
u/vain

stunning!

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yonatan

remix of d/9341 by u/yonatan

function u(t) {

for(c.width=i=1e3;i--;x.fillRect(S(i)*m+500+S(z)*m+m*S(t),C(i)*m+260+C(z)*m,z,z))m=i/13,x.fillStyle=`hsl(25,19%,${a=50-S(z=i**.5)*19}%`

Aug 23 2018 5:24 AM UTC

}// 135/140

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u/joeytwiddle

Whoa! So 3D! :D #parallax
u/f8f82804

#shading #d3
u/magna

#sorcery
u/sigveseb

Straight up #witchcraft
u/jylikangas

Best dweet in a long time.
u/joeytwiddle

#organic #model #shell

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f8f82804

remix of d/9187 by u/f8f82804

function u(t) {

with(x)for(φ=311;α=S(θ=φ/99),β=99*α*S(--φ+t);beginPath(fillStyle=`hsl(${φ} 90%${9+(β>0)*β}%`))fill(arc(β+960,75*(α*C(φ+t)-C(θ)+6),20*α,0,7))

Aug 10 2018 5:54 PM UTC

}// 140/140

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#golf #sphere #animated #diffuse #shading #sequins #sprite

u/f8f82804

#pbr

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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/9162 by u/f8f82804

function u(t) {

eval(unescape(escape`睩瑨⡸⥦潲⡩㴳ㄴ㭩ⴭ㭢敧楮偡瑨⠩⥡牣⠲㐰⨨⡣㵓⡡㵩⼱〰⤪匨戽琫椩⤫㐩ⰱㄲ⨨匨愩⩃⡢⤭㈪䌨愩⬴⤬㐰⨨匨愩⬮㈩ⰰⰷ⤬晩汬⠩ⱦ楬汓瑹汥㵠桳氨⑻㌶〪⠨戯㘭琯㐩┱⥽‹〥⑻㌰⨨ㄫ挫挪⨹⥽╠`.replace(/u(..)/g,"$1%")))

Aug 8 2018 7:04 PM UTC

}// 136/140

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Fancy #phong #shading #sphere -- #compressed #d3 #pbr

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u/f8f82804

Uncompressed: with(x)for(i=314;i--;beginPath())arc(240*((c=S(a=i/100)*S(b=t+i))+4),112*(S(a)*C(b)-2*C(a)+4),40*(S(a)+.2),0,7),fill(),fillStyle=hsl(${360*((b/6-t/4)%1)} 90%${30*(1+c+c**9)}%
u/magna

#sequins
u/lionleaf

Now that's beautiful!
u/f8f82804

I love it, but I really wanted to do it without compression. I even tried using fillText('●'). See my remix for the closest I could get.
u/iverjo

Sweet! #colorful
u/joeytwiddle

#hiddengem #model
u/f8f82804

#fullhd

dwitter.net | #shading