patrick hartono

Lecturer in Computational Arts at Goldsmiths, University of London

[patrick hartono @patrickHartono]

https://t.co/5JiA2AWez2

I'm thrilled that I'll be presenting my final doctoral project at @Harvard next week at the "Instruments, Interfaces, Infrastructures: An Interdisciplinary Conference on Musical Media" from May 11-13, 2023.

[Jae @Jaenam97]

Really wanted to try the three.js challenge of the day ! 🌍

But only using #glsl

Full raymarch, procedural biomes and animated clouds.

[AA @measure_plan]

Update: reached a milestone of 10 tutorials published on "fun with computer vision dot com" 🪬

- 185 customers
- $3.9k revenue
- >1 million views

it's been 21 days since I launched this project, and I'm grateful for your incredible support and kindness 💗

thank you to @threejs and mediapipe for the magic behind these computer vision / augmented reality experiments

this project has been incredibly fun and I have lots more I want to create

more experiments - demos - tutorials - code, coming soon to a tweet near you :]

[JunKiyoshi @junkiyoshi]

Switching box. Source code -> https://t.co/ZgtmrCauHt #openframeworks #programming #creativecoding #プログラミング

[Xor @XorDev]

"Event Horizon" in one equation

[Xor @XorDev]

Blackhole in 350 characters of #GLSL:

vec2 p=(FC.xy*2.-r)/r.y/.7,d=vec2(-1,1),c=p*mat2(1,1,d/(.1+5./dot(5.*p-d,5.*p-d))),v=c;v*=mat2(cos(log(length(v))+t*.2+vec4(0,33,11,0)))*5.;for(float i;i++<9.;o+=sin(v.xyyx)+1.)v+=.7*sin(v.yx*i+t)/i+.5;o=1.-exp(-exp(c.x*vec4(.6,-.4,-1,0))/o/(.1+.1*pow(length(sin(v/.3)*.2+c*vec2(1,2))-1.,2.))/(1.+7.*exp(.3*c.y-dot(c,c)))/(.03+abs(length(p)-.7))*.2);

[ア @yuruyurau]

a=(x,y,o=mag(k=x/4-12.5,e=y/9)/9)=&gt;point((q=x/3+99+3/k*sin(y)+k*(1+cos(y)/3+sin(e+o*4-t*2)))*cos(c=o/5+e/4-t/8)+200,(q+49)*sin(c)*cos(c)-q/3+30*o+220)
t=0,draw=$=&gt;{t||createCanvas(w=400,w);background(6).stroke(w,46);for(t+=PI/90,i=2e4;i--;)a(i%100,i/350)}// #つぶやきProcessing

[Yohei Nishitsuji @YoheiNishitsuji]

#つぶやきGLSL #11am10pm float i,e,R,s;vec3 q,p,d=vec3(FC.xy/r+vec2(-.5,1.4),2);for(q.zy--;i++&lt;119.;){o.rgb+=.027-hsv(.6,p.y,.02);s=.9,p=q+=d*e*R*.04;p=vec3(log2(R=length(p))-t*.5,exp(-p.z/R),atan(p.y,p.x)-t*.5);for(e=--p.y;s&lt;3e2;s+=s)e+=.09-abs(dot(sin(p.zxy*s),cos(p*s))/s*.25);}

[Koma Tebe @KomaTebe]

f=0,draw=o=&gt;{for(f||createCanvas(W=400,W),background(P=PI,d=200),N=noise,a=-P;a&lt;P;a+=P/16)for(fill(W,3),bezier(d,Y=150+9*cos(9*f),d-9*a,150,d-a*(9*sin(9*f)+9),d,d,Y),i=1;i&gt;0;i-=.01)stroke(W,d-i*d),point((N(i-f,f/3,a)-P/8)*i*W+d,N(f/2,i-f,a)*i*W+Y+9);f+=.003};//#つぶやきProcessing

[Fleetwood @fleetwood___]

Understanding GPU bottlenecks is easy with a visualisation 👨🏻‍🍳

[ア @yuruyurau]

a=(x,y,k=x/8-12.5,d=cos(k/2)+sin(y/3)-.5)=&gt;point((q=x/4+60+d*k*(1+cos(d*4-t*2+y/14)))*.7*cos(c=y*d/169-t/8+d/9)+200+60*sin(t*3/32+c/4),(q+59)*.7*sin(c)+200)
t=0,draw=$=&gt;{t||createCanvas(w=400,w);background(0).stroke(w,36);for(t+=PI/30,i=4e4;i--;)a(i%200,i/400)}#つぶやきProcessing

[Raven Kwok @RavenKwok]

Going recursive. Interaction remains the same.

[Yann Le Gall @Yann_LeGall]

#genuary2025 #genuary10
Day 10: "only use TAU in your code"
I cheated by deriving other numbers, like int(TAU) = 6, int(sqrt(TAU)) = 2, etc.

[inigo quilez @iquilezles]

// Any three (non colinear) points define a circle
// { .xy=center, .z=radius }
vec3 getCircle( vec2 a, vec2 b, vec2 c )
{
vec2 ba = b-a, cb = c-b, ac = a-c;
float de = ba.x*cb.y-ba.y*cb.x; // zero if colinear
vec2 ce = 0.5*(a+b+vec2(ba.y,-ba.x)*dot(ac,cb)/de);
return vec3( ce, length(a-ce) );
}

[Koma Tebe @KomaTebe]

f=0,draw=r=&gt;{for(f||createCanvas(W=400,W),background(0),N=noise,translate(d=200,d),a=0;a&lt;TAU;a+=PI/64)for(rotate(PI/64),i=1;i&gt;0;i-=.002)x=N(I=i-f,f/3,a)*i*W,y=N(f/2,I,a)*i*W,stroke(W,d-i*d),point(x,y);f+=.005};//#つぶやきProcessing #generativeart #p5js

[ア @yuruyurau]

a=(x,y,d=5*cos(o=mag(k=x/8-12.5,e=y/8-12.5)/12*cos(sin(k/2)*cos(e/2))))=&gt;
point((x+d*k*(sin(d*2+t)+sin(y*o*o)/9))/1.5+133,(y/3-d*40+19*cos(d+t))*1.5+300)
t=0,draw=$=&gt;{t||createCanvas(w=400,w);background(6,96).stroke(w,46);for(t+=PI/90,i=4e4;i--;)a(i%200,i/200)}#つぶやきProcessing

[ひさだん @hisadan]

//#Processing
float t;
void setup(){
size(800,800);
}
void draw(){
float i,j;
background(#F0E0D0);
stroke(0,99);noFill();
for(j=-1;j&lt;1;j+=.1){
beginShape();
for(i=-PI;i&lt;=PI;i+=PI/100)a(i,j);
endShape();
}
for(i=-PI;i&lt;PI;i+=PI/100){
beginShape();
for(j=-1;j&lt;1;j+=.1)a(i,j);
//cont.

[ア @yuruyurau]

a=(x,y,o=mag(k=x/4-12.5,e=y/9)/9)=&gt;point((q=x+99+cos(9/k)+o*k*(cos(e*9)/3+cos(y/9)/.7)*sin(o*4-t))*.7*sin(c=o*e/30-t/8)+200,200+y/9*cos(c*4-t/2)-q/2*cos(c))
t=0,draw=$=&gt;{t||createCanvas(w=400,w);background(6).stroke(w,46);for(t+=PI/60,i=3e4;i--;)a(i%100,i/150)}#つぶやきProcessing

[jessica @spatiallyjess]

Today I learned the city of Tokyo released point cloud data of the entire city for free for anyone to download 👀

[Koma Tebe @KomaTebe]

f=0,draw=o=&gt;{for(f||createCanvas(W=400,W),background(0),stroke(W),Y=250;Y&gt;150;Y-=2)for(j=0;j&lt;120;j++)for(i=0;i&lt;TAU;i+=PI/2)stroke(2*j),n=noise(i,Y,f/666)-.5,x=sin(i*n*12)*j+200,F=99*cos((j/9-f)/9),y=cos(i*n*12)*j/2+Y+F,point(x,y);f+=.5};//#つぶやきProcessing