ただのホビープログラマ。Processingで思いつくままにショートコーディング。日々の出来事とか読んだ本の感想などの自分用のライフログはblueskyの方に移りました。こっちはProcessing中心で。
Joined January 2010
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2,297 Photos and videos
これまで #Processing で作ってきたものをまとめたサイトが1,100ページになった！約半年で100ページ増えた。 The site I've been making my short programs by #Processing has reached 1,100 pages! scrapbox.io/hisadan/
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//#Processing
float x,r,h,t;
void setup(){size(800,800,P3D);}
void draw(){
background(0);noFill();
camera(999,999,999*cos(t/2),0,0,0,0,0,-1);
for(r=0;r<TAU;r =PI/9){
beginShape();
for(x=99*(cos(t)-1);x<800;x =9){
stroke(-1);
vertex(x*sin(r),x*cos(r),
//cont.
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//#Processing
float t;
void setup(){
size(800,800,P3D);
}
void draw(){
background(0);
camera(900*sin(t),500*cos(t),900*cos(t),0,0,0,0,-1,0);
lights();
fill(-1,128*(1 cos(t)));
stroke(-1,128*(1-cos(t)));
a(0,0,0,300);
t =.01;
}
void a(float x,float y,float z,float d){
//cont.
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//#つぶやきProcessing
float d,k,n,r,t;
void setup(){
size(800,800);
}
void draw(){
background(-1);
noFill();
k=1;
for(n=1;n<7;n ){
k*=2;
for(r=0;r<TAU;r =TAU/k)circle((d=40*n*sin(t) 2000/k*cos(t))*sin(r t) 400,d*cos(r t) 400,99*cos(t));
}
t-=.01;
}
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//#つぶやきProcessing
float t;
void setup(){size(800,800);}
void draw(){
background(-1);colorMode(3);
a(400,400,200);
t =.01;}
void a(float x,float y,float d){
if(d>9){
fill(d*t%6,255,255,d);circle(x,y,d);
for(float r=0;r<TAU;r =PI*25/d)a(d*sin(r) x,d*cos(r) y,d/(3 cos(t)));}}
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//#Processing
float t;
void setup(){
size(800,800);
rectMode(CENTER);
}
void draw(){
background(-1);
a(400,400,200);
t =.01;
}
void a(float x,float y,float d){
if(d>9){
push();
if(d%2==0){
square(x,y,2*d*(1 cos(t)));
}else{
circle(x,y,2*d*(1-cos(t)));
}
a(x d,y d,d/2);
//cont.
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//#Processing
float t;
void setup(){
size(800,800,P3D);
}
void draw(){
background(-1);
camera(200,700*cos(t),500*cos(t/2),0,0,99,0,0,-1);
a(0,0,200);
t =PI/500;
}
void a(float x,float y,float d){
float r,p,q;
if(d>9){
push();
translate(x,y,d/2);
beginShape();
//cont.
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//#Processing
int n=9999,i;
float a[]=new float[n*2],t;
void setup(){
size(800,800);
for(i=0;i<n;i ){
a[i]=random(550);
a[i n]=random(TAU);
}
background(0);
}
void draw(){
t =.005;
fill(0,2);
square(-1,-1,802);
stroke(-1,99);
for(i=0;i<n;i ){
point(a[i]*sin(a[i n]) 400,
//cont.
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//#Processing
int n=9999,i;
float a[]=new float[n*2],t=999;
void setup(){
size(800,800);
colorMode(HSB);
background(0);
}
void draw(){
if(t >255){
t=0;
noiseSeed((int)random(999));
for(i=0;i<n;i ){
a[i]=random(550);
a[i n]=random(TAU);
}
}
fill(0,2);
square(-1,-1,802);
//cont.
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ひさだん retweeted
May 3
the most famous comment in all of C programming history. written by a developer at id Software in 1999 for Quake III Arena
one line of pointer casting, one bit shift, one subtraction and somehow you have 1/√x.
just bit manipulation, a constant, and a final newton refinement step.
the comment reads: "what the f***?"
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//#Processing recurring decimal
int a=1, b=1, w, i, j, x, y;
size(800, 800);
background(-1);
for (i=0; i<100; i ) {
x=80*(i);
y=80*(i/10);
fill(0);
text(a "/" b, x 5, y 15);
noFill();
square(x, y, 80);
beginShape();
for (j=0; j<100; j ) {
w=a/b;
//cont.
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