Top #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.

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Current theme challenge: #Opposites

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DataMeta

remix of d/15449 by u/DataMeta

function u(t) {

c.style.background=R();if(t<2)for(i=1920;i--;)x.fillStyle=R(l=S(t)*i/7,l,l),
x.fillRect(i,540+S(C(t+i/64+l/64))*S(t)*i/4,9,9)

Aug 24 2019 1:04 AM UTC

}// 125/140

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#d3 #shading #lighting

u/pasacaglia

Cool
u/Qwitter

bone paper!

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corruptio

remix of d/5769 by u/ETHproductions

function u(t) {

for(c.width=256,Z=X=64;--X+Z;)for(Y=Z;--Y+Z;)x.fillRect(X+Z,Y+Z,(Math.acos(X/(Z*Z-Y*Y)**.5)+t)%6/(Y/Z+2)*8&1,1-(X-Y+Z)/2/(X*X+Y*Y+Z*Z)**.5)

Jan 10 2018 9:43 AM UTC

}// 139/140

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Added a directional light source

u/ETHproductions

Quite an amazing feat to get this into 140 chars :-)
u/f8f82804

Nice! #sphere #raytrace #shading

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pavel

function u(t) {

eval(unescape(escape`景爨樽㈲㭱㵃⡶㵪ⴭ⼸⤬爽㌰〫ㄵ〪焬稽匨瘩㬩景爨椽ㄱ㐻甽椭⴯ㄸ㭸⹦楬汒散琨㤴㜫爪䌨甩ⰵ㈸⭲⩓⡵⤬㈵ⰲ㔩⥦㴲⩺⨨焪䌨甩⩓⡴⤫稪䌨琩⤭䌨琩ⱸ⹦楬汓瑹汥㵒⡧㵦⩦⨲㔶ⱧⱧ⬲〪昩;`.replace(/u(..)/g,"$1%")))

Mar 5 2019 2:07 AM UTC

}// 132/140

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Two-color phong specular shaded torus

u/pavel

166 for(j=22;q=C(v=j--/8),r=300+150*q,z=S(v);)for(i=114;u=i--/18;x.fillRect(947+r*C(u),528+r*S(u),25,25))f=2*z*(q*C(u)*S(t)+z*C(t))-C(t),x.fillStyle=R(g=f*f*256,g,g+20*f)
u/tomxor

Nice #shading #torus
u/f8f82804

#d3 #phong

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rep_movsd

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑩𩠨𭀼𜠩𩡩𫁬𤡥𨱴𚁫👘👔🐱𛁦𪑬𫁓𭁹𫁥👙🐵𛁷🐱𞐲𜀬𪀽𜐰𞀰𚐻𩑬𬱥𮱤🐷𝐬𤐽𝠵𝐊𪑦𚁫🡤𚑘𚠽𩀥𤐬𦐪👤𙑑𛁫🐱𛁔👴𯀰𞱭👤𛑫𚰫𒡦𪑬𫁓𭁹𫁥👒𚁔𙐷𚡤𛁔𙐵𚡤𛁔𙐳𚠹𞐬𛠱𚐊𨡥𩱩𫡐𨑴𪀨𚐊𨑲𨰨𦀥𭰫𫐬𦐥𪀫𫐬𫐪𜠬𜀬𝠩𒡦𪑬𫀨𚑽`.replace(/u../g,'')))

Jul 26 2019 11:01 AM UTC

}// 140/140

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Spheres

u/katkip

Awesome
u/Jasper

Heya, I'm new to the site - what's the purpose of the OR in T=t|0? Is t sometimes undefined?
u/rep_movsd

t is time, but its in floating point, t|0 makes it an integer
u/aleamb

#shading

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taupelink

function u(t) {

for(i=1e4;i--&&t<5;x.fillRect(60*X,60*Y,1,1))f=3+(S(X=i**3*t%32)+S(Y=i *i*t%18))**2,x.fillStyle=R(9*f,9*(f+=X/2%f),7*(f+=Y%f),.2/f+f**8/1e9)

Jun 19 2023 10:46 PM UTC

}// 140/140

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d/28019

u/Joachim

#shading
u/UEZ

Some look like "Nazar boncuğu" aka "Evil eye bead" - nice

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veubeke

function u(t) {

s=t&15
T=t>>4
for(i=2;i--;x.fillRect((t%16+s-T%2*2+i)*72,y*9-20,2,50))_=t%2*3,y=T*4+(i?s%2*2:C(_)+1)*2,x.fillStyle=R($=S(!i*_)*20+200-y,$,$)

Jun 4 2018 10:39 PM UTC

}// 140/140

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u/magna

Neat!
u/aleamb

cool
u/iverjo

Nice! 3D #hexagons #perspective #shading
u/iverjo

#slow_render

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robbyg

remix of d/15194 by u/robbyg

function u(t) {

for(i=2e3;i--;x.fillRect(X,Y,1,1))d=Math.random()*420,X=960+C(d+i)*d,Y=540+S(d+i)*d,x.fillStyle=`hsl(9,50%,${90-Math.hypot(760-X,400-Y)/7}%`

Jul 30 2019 9:47 PM UTC

}// 140/140

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More realistic shading.

u/robbyg

You can change the position of the "light" by changing the two numbers in Math.hypot(). Also, golfing tips welcome!
u/pavel

Some golf tricks in d/12574
u/aleamb

#shading #sphere
u/Cloud

Render in Blender)

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pavel

function u(t) {

for(c.width=120,k=4072;j=--k>>6;x.fillRect(60+i,j,1,1))i=k%64-32,s=64*j-i*i-j*j,f=s**.5*S(a=S(3*t))+i*C(a),x.fillStyle=R(g=f*f/4,g,g+f,s/99)

Mar 3 2019 3:17 AM UTC

}// 140/140

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u/aleamb

#shading
u/13thptr

#sphere

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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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joeytwiddle

remix of d/8414 by u/joeytwiddle

function u(t) {

for(c.width|=0,i=3500;i--;x.beginPath())x.globalAlpha=.03,x.arc(S(i**.5-t*9)*i*i/1e4+960,C(i**.5-t*9)*i*i/1e4+540,i**2/8e4+2,0,7),x.fill()

Jun 5 2018 9:59 AM UTC

}// 138/140

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Soft shaded spiral

u/joeytwiddle

This is what I was going for, but it's kinda boring
u/zanella

No boring at all, I think it's the best spiral I've seen here. :)
u/joeytwiddle

tx zanella :) Derived from d/8393 by firegodjr and BirdsTweet
u/iverjo

#shading #spiral
u/iverjo

This has to be one of the best spirals I've seen on Dwitter

dwitter.net | #shading