Top #sphere 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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BalintCsala

remix of d/7678 by u/vittis

function u(t) {

for(c.width=i=500;i--;x.fillStyle=R((X=(C((i+1)%400+S(t)*2)*(1-y*y)**.5)*100)-y*S(t)*100+100),x.fillRect(250+X,100+100*y,28,28))y=(i-99)/100

Apr 16 2018 11:48 PM UTC

}// 140/140

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Ball with fake, moving lighting

u/iverjo

#sphere
u/f8f82804

#shading

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xem

function u(t) {

c.width^=0;for(i=0;i<10;i+=.5)for(j=0;j<10;j+=.5)x.arc(900+400*S((i+t/9)*3.14)*C(j*1.57),500+400*S(j*1.57),5,0,6);x.fill()

Oct 21 2017 7:12 AM UTC

}// 122/140

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This is totally not what I wanted to do :)

u/xem

Sphere<3
u/xem

(see remix https://www.dwitter.net/d/3325)
u/iverjo

#sphere

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f8f82804

remix of d/5600 by u/p01

function u(t) {

for(i=c.width^=0;i--;x.beginPath(x.fill()))C(t-i)>0&&x.arc(960+(i*960-i*i)**.5*S(t-i),48+i,9-(b=S(t-i-1)*C(Math.acos(i/540-1)+1))**4*9,0,7)

Sep 5 2018 6:50 PM UTC

}// 139/140

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#specular #halftone #sphere

u/f8f82804

#d3

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vittis

function u(t) {

for(c.width=1920,i=0;i<200;i++){y=i/100-0.99;r=Math.sqrt(1-Math.pow(y,2));a=(i+1)%400+S(t)*2;k=C(a)*r;x.fillRect(960+k*300,540+y*300,15,15)}

Apr 16 2018 4:35 AM UTC

}// 140/140

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u/BalintCsala

pow(x,y) is x**y, sqrt(x) is x**.5
u/iverjo

#sphere

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Drum

remix of d/683 by u/mxfh

function u(t) {

c.width=w=1920;π=Math.PI/2;λ=2;r=w/4;for(φ=-π;φ<π;φ+=.5/r){λ+=.3;x.lineTo(C(φ)*S(λ-t)*r+w/2,(C(t)*S(φ)-S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Feb 24 2017 11:42 AM UTC

}// 136/140

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u/iverjo

#sphere

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f8f82804

remix of d/11749 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;x.fillRect(X/d+960,Y/d-960,s=48-2e4*d,s))d=Math.hypot(X=S(ϕ=i/612)*S(θ=i*37+i**C(i+t)/i-t),Y=C(ϕ)/.8+3,C(θ)*S(ϕ)+5)/3e3

Jan 12 2019 12:03 AM UTC

}// 140/140

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#perspective #sphere #pointcloud #swarm #traffic #hypot

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f8f82804

remix of d/11620 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;Z<1.6&&x.fillRect(960+800*S(θ)*S(ϕ)/Z,540+800*C(ϕ)/Z,s=32*(1.6-Z),s)){ϕ=i/600;θ=i*84+(i/9e3)**C(i+t)**2;Z=C(θ)*S(ϕ)+2;}

Jan 7 2019 6:37 PM UTC

}// 140/140

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patterns on a #perspective #sphere with #occlusion

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f8f82804

remix of d/11792 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;x.fillRect(X/d+960,Y/.8/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)+4,r*C(θ)*S(ϕ)+5)/1e3

Jan 15 2019 12:39 AM UTC

}// 140/140

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#d3 #perspective #projection #sphere using #hypot -- better #correction for the #distortion

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f8f82804

remix of d/11811 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;x.fillRect(X/d+960,Y/.5/d-64e2,s=36-d*1e4,s))a=S(ϕ=i/612),θ=i*37+C(i/99+t),d=Math.hypot(X=S(θ)*a,Y=C(ϕ)+9,C(θ)*a+5)/4e3

Jan 15 2019 12:36 AM UTC

}// 140/140

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my #d3 #hypot #perspective #projection of a #sphere #model with #distortion #correction -- in some previous dweets I did this wrong, resulting in an egg shape!

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Quant1um

function u(t) {

c.width|=1
x.lineWidth=3
r=420
u=1.5
t=t/2
for(b=-u;b<u;b+=u/r)
x.lineTo(C(30*b)*C(b)*C(t)*r+S(b)*S(t)*r+960,S(30*b)*C(b)*r+540)
x.stroke()

Sep 12 2018 6:02 PM UTC

}// 139/140

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Spiral on sphere surface

u/f8f82804

#sphere
u/f8f82804

similar to d/683

dwitter.net | #sphere