The Milky Way- OpenProcessing

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galaxy_final.pde

solar_system.pde

sphere_earth.pde

//The Milky Way and Sol--by Maximilian Uriarte
//Click the planets!
// original galaxy code author : Philippe Guglielmetti (Dr. Goulu www.goulu.net)
// galaxy code was modified heavily to make it prettier and look more like the Milky Way, I just couldn't figure out the algorithm for the spiral alone
// textured sphere code adapted from processing.org example
// I really wanted to do all of the planets in 3D, but I couldn't figure out how to turn the textured sphere code into its own class,
// so I could only do one planet, so the others are just images.

import processing.opengl.*;
float pi=4*atan(1);

int mode = 0;

//solar system floats
PImage mercury,venus,mars,jupiter,uranus,neptune,saturn,sun;

float x,y;
float ex,ey,s;
float mx,my;
float vx,vy;
float Mx,My;
float jx,jy;
float satx,saty;
float ux,uy;
float nx,ny;
float ax,ay;
float ang;
float moonx,moony; 
int stars=30000; //number of stars (far less than the 400 billion in real life)
int Rmax=350; // galaxy radius
float speed=0.004;  // rotation speed

//galaxy floats
 
// stars follow elliptic orbits around the center
float eratio=.9020268; // ellipse ratio
float etwist=.028142858; // twisting factor (orbit axes depend on radius)
 
float []angle=new float[stars];
float []radius=new float[stars];
 
float cx; float cy; //center
float sx, sy;

//earth floats

PImage bg;
PImage texmap;

int sDetail = 35;  // Sphere detail setting
float rotationX = 0;
float rotationY = 0;
float velocityX = 0;
float velocityY = 0;
float globeRadius = 450;
float pushBack = 0;

float[] c2x, c2z, sphereX, sphereY, sphereZ;
float sinLUT[];
float cosLUT[];
float SINCOS_PRECISION = 0.5;
int SINCOS_LENGTH = int(360.0 / SINCOS_PRECISION);

//
 
void setup(){
  size(900,900,OPENGL);
  background(0); // back to black
  speed=speed/frameRate;
  smooth();
  
  //galaxy variables
  // begin in the center
  cx = width/2;
  cy = height/2;
  // itit stars
  for (int i=0; i< stars; i++){
    angle[i]= random(0,2*pi);
    radius[i]=random(1,Rmax);
  }
  
  //solar system variables
  mercury = loadImage("mercury.jpeg");
  venus = loadImage("venus.jpeg");
  mars = loadImage("mars.jpeg");
  jupiter = loadImage("jupiter.jpeg");
  saturn = loadImage("saturn.jpeg");
  uranus = loadImage("uranus.jpeg");
  neptune = loadImage("neptune.jpeg");
  sun = loadImage("sun.jpeg");
  
  ex = 0;
  ey = 0;
  mx = 0;
  my = 0;
  vx = 0;
  vy = 0;
  Mx = 0;
  My = 0;
  jx = 0;
  jy = 0;
  satx = 0;
  saty = 0;
  ux = 0;
  uy = 0;
  nx = 0;
  ny = 0;
  ax = 0;
  ay = 0;
  moonx = 0;
  moony = 0;
  ang = 0;
  
  imageMode(CENTER);
  
  //earth variables
  texmap = loadImage("earth.png");
  initializeSphere(sDetail);
  
}
 
void draw(){
  background(0); // back to black
  //info
  
  if(mode == 0){
    if(mousePressed == true){
    fill(255);
    text("Milky Way Galaxy",50,50);
    text("Type: Barred Spiral Galaxy",50,75);
    text("Stars: Est. 300-500 Billion",50,100);
    text("Diameter: 100,000 Light Years",50,125);
    text("Nearest Neigboring Galaxy: Andromeda",50,150);
    text("Sol",450,630);
    text("Perseus Arm", 400,700);
    text("Scutum-Centaurus Arm",470,300);
    text("Super-Massive Black Hole",390,520);
  }

      //solar system
  if(mouseX > 400){
    if(mouseX < 500){
      if(mouseY > 600){
        if(mouseY < 700){
          text("Sol",450,630);
          if(mousePressed == true){
            mode = 1;
          }
        }
      }
    }
  }
  
  
  sx = 440;
  sy = 620;
  stroke(255);
  noFill();
  ellipse(sx, sy, 10,10);
  
  //
  stroke(255,255,255,150);
  for (int i =0; i< stars; i++){
    float r=radius[i];
    float a=angle[i]+speed; // increment angle
    angle[i]=a;
    float x = r*sin(a);
    float y= r*eratio*cos(a);
    float b=r*etwist;
    float s=sin(b);
    float c=cos(b);
    point(cx+s*x+c*y,cy+c*x-s*y); // a bit of trigo
  }
  
  for (int i =0; i< 200; i++){
    float r=radius[i];
    float a=angle[i]+speed; // increment angle
    angle[i]=a;
    float x = r*sin(a);
    float y= r*eratio*cos(a);
    float b=r*etwist;
    float s=sin(b);
    float c=cos(b);
    noStroke();
    fill(255,255,255,15);
    ellipse(cx+s*x+c*y,cy+c*x-s*y,25,50); // a bit of trigo
  }
  for (int i =0; i< 300; i++){
    float r=radius[i];
    float a=angle[i]+speed; // increment angle
    angle[i]=a;
    float x = r*sin(a);
    float y= r*eratio*cos(a);
    float b=r*etwist;
    float s=sin(b);
    float c=cos(b);
    noStroke();
    fill(200,200,255,15);
    ellipse(cx+s*x+c*y,cy+c*x-s*y+15,50,100); // a bit of trigo
  }
  for (int i =0; i< 50; i++){
    float r=radius[i];
    float a=angle[i]+speed; // increment angle
    angle[i]=a;
    float x = r*sin(a);
    float y= r*eratio*cos(a);
    float b=r*etwist;
    float s=sin(b);
    float c=cos(b);
    noStroke();
    fill(255,255,100,5);
    ellipse(cx+s*x+c*y*2,cy+c*x-s*y+15,100,100); // a bit of trigo
  }
  }

 if(mode == 1){
  strokeWeight(.5);
  background(0);
  smooth();
  
  //info
  fill(255);
  if(mousePressed == true){
    text("Local Solar System 'Sol'",50,50);
    text("Stars: 1",50,75);
    text("Planets: 8 - 4 Solid, 4 Gaseous",50,100);
    text("Dwarf Planets: 5",50,125);
  }

  
  //sun
  fill(255,255,0);
  noStroke();
  ellipse(width/2,height/2,50,50);
  if(mouseX > 425){ //begin rollover info
    if(mouseX < 475){
      if(mouseY > 425){
        if(mouseY < 475){
      noFill();
      stroke(255);
      line(450,450,470,490);
      line(470,490,700,490);
      text("Sun - Class: G2V Yellow Dwarf",475,485);
      text("Diameter - 870,000 Miles",475,505);
      noStroke();
      if(mousePressed == true){
        mode = 10;
      }
        } 
      }
    }
  }
  if(mousePressed == true){ //sun mouse code
    noFill();
      stroke(255);
      line(450,450,470,490);
      line(470,490,700,490);
      text("Sun - Class: G2V Yellow Dwarf",475,485);
      text("Diameter - 870,000 Miles",475,505);
      noStroke();
  }
  
  //earth
  fill(5,255,23);
  ex = cos(radians(ang++)) * 150 + width/2;
  ey = sin(radians(ang)) * 150 + height/2;
  ellipse(ex,ey,20,20);
  if(mouseX > ex-50){ //begin rollover info
    if(mouseX < ex+50){
      if(mouseY > ey-50){
        if(mouseY < ey+50){
      noFill();
      stroke(255);
      ellipse(width/2,height/2,300,300);
      line(ex,ey,ex+20,ey-10);
      line(ex+20,ey-10,ex+200,ey-10);
      text("Earth - Orbit 1 Earth Year", ex+25,ey-15);
      text("Diameter - 7,926 Miles", ex+25,ey+5);
      noStroke();
      if(mousePressed == true){
        mode = 2;
      }
        } 
      }
    }
  }
  if(mousePressed == true){ //earth mouse code
          noFill();
      stroke(255);
      ellipse(width/2,height/2,300,300);
      line(ex,ey,ex+20,ey-10);
      line(ex+20,ey-10,ex+200,ey-10);
      text("Earth - Orbit 1 Earth Year", ex+25,ey-15);
      text("Diameter - 7,926 Miles", ex+25,ey+5);
      noStroke();
  }
  
  //earth moon
  fill(250);
  moonx = cos(radians(ex/2)) * 20 + ex;
  moony = sin(radians(ey/2)) * 20 + ey;
  ellipse(moonx,moony,10,10);
  
  
  //mercury
  fill(240);
  mx = cos(radians(ang*4.16)) * 50 + width/2;
  my = sin(radians(ang*4.16)) * 50 + height/2;
  ellipse(mx,my,5,5);
  noFill();
  ellipse(width/2,height/2,50,50);
  if(mouseX > mx-25){
    if(mouseX < mx+25){
      if(mouseY > my-25){
        if(mouseY < my+25){
      noFill();
      stroke(255);
      ellipse(width/2,height/2,100,100);
      line(mx,my,mx+20,my-10);
      line(mx+20,my-10,mx+200,my-10);
      text("Mercury - Orbit .24 Earth Years", mx+25,my-15);
      text("Diameter - 3,031 Miles",mx+25,my+5);
      noStroke();
      if(mousePressed == true){
        mode = 3;
      }
        } 
      }
    }
  }
  if(mousePressed == true){ //mercury mouse code
          noFill();
      stroke(255);
      ellipse(width/2,height/2,100,100);
      line(mx,my,mx+20,my-10);
      line(mx+20,my-10,mx+200,my-10);
      text("Mercury - Orbit .24 Earth Years", mx+25,my-15);
      text("Diameter - 3,031 Miles",mx+25,my+5);
      noStroke();
  }
  
  //venus
  fill(233,237,41);
  vx = cos(radians(ang*1.63)) * 100 + width/2;
  vy = sin(radians(ang*1.63)) * 100 + height/2;
  ellipse(vx,vy,18,18);
  if(mouseX > vx-50){
    if(mouseX < vx+50){
      if(mouseY > vy-50){
        if(mouseY < vy+50){
      noFill();
      stroke(255);
      ellipse(width/2,height/2,200,200);
      line(vx,vy,vx+20,vy-10);
      line(vx+20,vy-10,vx+200,vy-10);
      text("Venus - Orbit .62 Earth Years", vx+25,vy-15);
      text("Diameter - 7,521 Miles",vx+25,vy+5);
      noStroke();
      if(mousePressed == true){
        mode = 4;
      }
        } 
      }
    }
  }
  if(mousePressed == true){ //venus mouse code
          noFill();
      stroke(255);
      ellipse(width/2,height/2,200,200);
      line(vx,vy,vx+20,vy-10);
      line(vx+20,vy-10,vx+200,vy-10);
      text("Venus - Orbit .62 Earth Years", vx+25,vy-15);
      text("Diameter - 7,521 Miles",vx+25,vy+5);
      noStroke();
  }
  
  //mars
  fill(183,32,24);
  Mx = cos(radians(ang*.53)) * 200 + width/2;
  My = sin(radians(ang*.53)) * 200 + height/2;
  ellipse(Mx,My,15,15);
  if(mouseX > Mx-50){
    if(mouseX < Mx+50){
      if(mouseY > My-50){
        if(mouseY < My+50){
      noFill();
      stroke(255);
      ellipse(width/2,height/2,400,400);
      line(Mx,My,Mx+20,My-10);
      line(Mx+20,My-10,Mx+200,My-10);
      text("Mars - Orbit 1.8 Earth Years", Mx+25,My-15);
      text("Diameter - 4,220 Miles",Mx+25,My+5);
      noStroke();
      if(mousePressed == true){
        mode = 5;
      }
        } 
      }
    }
  }
  if(mousePressed == true){ //mars mouse code
    noFill();
      stroke(255);
      ellipse(width/2,height/2,400,400);
      line(Mx,My,Mx+20,My-10);
      line(Mx+20,My-10,Mx+200,My-10);
      text("Mars - Orbit 1.8 Earth Years", Mx+25,My-15);
      text("Diameter - 4,220 Miles",Mx+25,My+5);
      noStroke();
  }
  
 

  //jupiter
  fill(180,157,109);
  jx = cos(radians(ang*.08)) * 300 + width/2;
  jy = sin(radians(ang*.08)) * 300 + height/2;
  ellipse(jx,jy,40,40);
  if(mouseX > jx-50){
    if(mouseX < jx+50){
      if(mouseY > jy-50){
        if(mouseY < jy+50){
      noFill();
      stroke(255);
      ellipse(width/2,height/2,600,600);
      line(jx,jy,jx+20,jy-10);
      line(jx+20,jy-10,jx+200,jy-10);
      text("Jupiter - Orbit 11.86 Earth Years", jx+25,jy-15);
      text("Diameter - 88,700 Miles",jx+25,jy+5);
      noStroke();
      if(mousePressed == true){
        mode = 6;
      }
        } 
      }
    }
  }
  if(mousePressed == true){ //jupiter mouse code
    noFill();
      stroke(255);
      ellipse(width/2,height/2,600,600);
      line(jx,jy,jx+20,jy-10);
      line(jx+20,jy-10,jx+200,jy-10);
      text("Jupiter - Orbit 11.86 Earth Years", jx+25,jy-15);
      text("Diameter - 88,700 Miles",jx+25,jy+5);
      noStroke();
  }
  
  //saturn
  fill(214,145,6);
  satx = cos(radians(ang*.033)) * 350 + width/2;
  saty = sin(radians(ang*.033)) * 350 + height/2;
  ellipse(satx,saty,30,30);
  noFill();
  stroke(255);
  ellipse(satx,saty,50,25);
  noStroke();
  if(mouseX > satx-30){
    if(mouseX < satx+30){
      if(mouseY > saty-30){
        if(mouseY < saty+30){
      noFill();
      stroke(255);
      ellipse(width/2,height/2,700,700);
      line(satx,saty,satx-20,saty+10);
      line(satx-20,saty+10,satx-250,saty+10);
      text("Saturn - Orbit 29.45 Earth Years", satx-235,saty+5);
      text("Diameter - 74,898 Miles", satx-235,saty+25);
      noStroke();
      if(mousePressed == true){
        mode = 7;
      }
        } 
      }
    }
  }
  if(mousePressed == true){ //Saturn mouse code
    noFill();
      stroke(255);
      ellipse(width/2,height/2,700,700);
      line(satx,saty,satx-20,saty+10);
      line(satx-20,saty+10,satx-250,saty+10);
      text("Saturn - Orbit 29.45 Earth Years", satx-235,saty+5);
      text("Diameter - 74,898 Miles", satx-235,saty+25);
      noStroke();
  }
  
  //uranus
  fill(73,151,227);
  ux = cos(radians(ang*.011)) * 400 + width/2;
  uy = sin(radians(ang*.011)) * 400 + height/2;
  ellipse(ux,uy,25,25);
  if(mouseX > ux-20){
    if(mouseX < ux+20){
      if(mouseY > uy-20){
        if(mouseY < uy+20){
      noFill();
      stroke(255);
      ellipse(width/2,height/2,800,800);
      line(ux,uy,ux-20,uy+10);
      line(ux-20,uy+10,ux-250,uy+10);
      text("Uranus - Orbit 84.32 Earth Years", ux-235,uy+5);
      text("Diameter - 31,763 Miles", ux-235,uy+25);
      noStroke();
      if(mousePressed == true){
        mode = 8;
      }
        } 
      }
    }
  }
  if(mousePressed == true){ //Uranus mouse code
    noFill();
      stroke(255);
      ellipse(width/2,height/2,800,800);
      line(ux,uy,ux-20,uy+10);
      line(ux-20,uy+10,ux-250,uy+10);
      text("Uranus - Orbit 84.32 Earth Years", ux-235,uy+5);
      text("Diameter - 31,763 Miles", ux-235,uy+25);
      noStroke();
  }
  
  //neptune
  fill(10,92,250);
  nx = cos(radians(ang*.006)) * 430 + width/2;
  ny = sin(radians(ang*.006)) * 430 + height/2;
  ellipse(nx,ny,25,25);
  if(mouseX > nx-20){
    if(mouseX < nx+20){
      if(mouseY > ny-20){
        if(mouseY < ny+20){
      noFill();
      stroke(255);
      ellipse(width/2,height/2,860,860);
      line(nx,ny,nx-20,ny+10);
      line(nx-20,ny+10,nx-250,ny+10);
      text("Neptune - Orbit 164.79 Earth Years", nx-235,ny+5);
      text("Diameter - 30,775 Miles",nx-235,ny+25);
      noStroke();
      if(mousePressed == true){
        mode = 9;
      }
        } 
      }
    }
  }
  if(mousePressed == true){ //Neptune Mouse Code
    noFill();
      stroke(255);
      ellipse(width/2,height/2,860,860);
      line(nx,ny,nx-20,ny+10);
      line(nx-20,ny+10,nx-250,ny+10);
      text("Neptune - Orbit 164.79 Earth Years", nx-235,ny+5);
      text("Diameter - 30,775 Miles",nx-235,ny+25);
      noStroke();
    }
      //back button
    noFill();
    stroke(255);
    rect(700,50,50,20);
    fill(255);
    text("BACK",710,65);
    if(mouseX > 700){
      if(mouseX < 750){
        if(mouseY > 50){
          if(mouseY < 70){
            if(mousePressed == true){
              mode = 0;
            }
          }
        }
      }
    }
  
  }
  
  if(mode == 2){
    //background(0);
    renderGlobe();
    if(mousePressed == true){
      text("Earth",50,100);
      text("Moons: 1",50,125);
      text("Diameter: 7,926 Miles",50,150);
      text("Population: 7 Billion Humans",50,175);
      text("7 Continental Land Masses", 50, 200);
    }
    
    //back button
    noFill();
    stroke(255);
    rect(700,700,50,20);
    text("BACK",710,715);
    if(mouseX > 700){
      if(mouseX < 750){
        if(mouseY > 700){
          if(mouseY < 720){
            if(mousePressed == true){
              mode = 1;
            }
          }
        }
      }
    }
   }
   
   //mercury
   if(mode == 3){
     image(mercury, height/2,width/2,100,100);
     text("Mercury",50,100);
     text("Diameter: 3,031 Miles",50,125);
     text("Moons: 0",50,150);
     
         //back button
    noFill();
    stroke(255);
    rect(700,700,50,20);
    text("BACK",710,715);
    if(mouseX > 700){
      if(mouseX < 750){
        if(mouseY > 700){
          if(mouseY < 720){
            if(mousePressed == true){
              mode = 1;
            }
          }
        }
      }
    }
   }
   
   //venus
   if(mode == 4){
     image(venus,width/2,height/2,300,300);
     text("Venus",50,100);
     text("Diameter: 7,521 Miles",50,125);
     text("Moons: 0",50,150);
     
         //back button
    noFill();
    stroke(255);
    rect(700,700,50,20);
    text("BACK",710,715);
    if(mouseX > 700){
      if(mouseX < 750){
        if(mouseY > 700){
          if(mouseY < 720){
            if(mousePressed == true){
              mode = 1;
            }
          }
        }
      }
    }
   
  }
  
  //mars
  if(mode == 5){
    image(mars,width/2,height/2,250,250);
    text("Mars",50,100);
    text("Diameter: 4,220 Miles",50,125);
    text("Moons: 2",50,150);
  
      //back button
    noFill();
    stroke(255);
    rect(700,700,50,20);
    text("BACK",710,715);
    if(mouseX > 700){
      if(mouseX < 750){
        if(mouseY > 700){
          if(mouseY < 720){
            if(mousePressed == true){
              mode = 1;
            }
          }
        }
      }
    }
  }
  
  //jupiter
  if(mode == 6){
    image(jupiter,width/2,height/2,650,650);
    text("Jupiter",50,100);
    text("Diameter: 88,700 Miles",50,125);
    text("Moons: 64",50,150);
  
      //back button
    noFill();
    stroke(255);
    rect(700,700,50,20);
    text("BACK",710,715);
    if(mouseX > 700){
      if(mouseX < 750){
        if(mouseY > 700){
          if(mouseY < 720){
            if(mousePressed == true){
              mode = 1;
            }
          }
        }
      }
    }
  }
  
  //saturn
  if(mode == 7){
    image(saturn,width/2,height/2,670,600);
    text("Saturn",50,100);
    text("Diameter: 74,898 Miles",50,125);
    text("Moons: 62",50,150);
    
        //back button
    noFill();
    stroke(255);
    rect(700,700,50,20);
    text("BACK",710,715);
    if(mouseX > 700){
      if(mouseX < 750){
        if(mouseY > 700){
          if(mouseY < 720){
            if(mousePressed == true){
              mode = 1;
            }
          }
        }
      }
    }
  }
  
  //Uranus
  if(mode == 8){
    image(uranus,width/2,height/2,400,900);
    text("Uranus",50,100);
    text("Diameter: 31,763 Miles",50,125);
    text("Moons: 27",50,150);
    
        //back button
    noFill();
    stroke(255);
    rect(700,700,50,20);
    text("BACK",710,715);
    if(mouseX > 700){
      if(mouseX < 750){
        if(mouseY > 700){
          if(mouseY < 720){
            if(mousePressed == true){
              mode = 1;
            }
          }
        }
      }
    }
  }
  
  //Neptune
  if(mode == 9){
    image(neptune,width/2,height/2,500,500);
    text("Neptune",50,100);
    text("Diameter: 30,775",50,125);
    text("Moons: 13", 50,150);
    
        //back button
    noFill();
    stroke(255);
    rect(700,700,50,20);
    text("BACK",710,715);
    if(mouseX > 700){
      if(mouseX < 750){
        if(mouseY > 700){
          if(mouseY < 720){
            if(mousePressed == true){
              mode = 1;
            }
          }
        }
      }
    }
  }
  
  //Sun
  if(mode == 10){
    image(sun,height/2,width/2,900,900);
    text("Sun",50,100);
    text("Diameter: 870,000 Miles",50,125);
    text("Class G2V Yellow Dwarf Star",50,150);
    text("Orbiting Planets: 8 Primary",50,175);
    text("Age: 4.57 Billion Years",50,200);
    
         //back button
    noFill();
    stroke(255);
    rect(700,700,50,20);
    text("BACK",710,715);
    if(mouseX > 700){
      if(mouseX < 750){
        if(mouseY > 700){
          if(mouseY < 720){
            if(mousePressed == true){
              mode = 1;
            }
          }
        }
      }
    }
  }
  
  //closes draw loop
  }

  //sphere code
  
void renderGlobe() {
  pushMatrix();
  translate(width/2.0, height/2.0, pushBack);
  pushMatrix();
  noFill();
  stroke(255,200);
  strokeWeight(2);
  smooth();
  popMatrix();
  lights();    
  pushMatrix();
  rotateX( radians(-rotationX) );  
  rotateY( radians(270 - rotationY) );
  fill(200);
  noStroke();
  textureMode(IMAGE);  
  texturedSphere(globeRadius, texmap);
  popMatrix();  
  popMatrix();
  rotationX += velocityX;
  rotationY += velocityY;
  velocityX *= 0.95;
  velocityY *= 0.95;
  
  //Implements mouse control (interaction will be inverse when sphere is  upside down)
  if(mousePressed){
    velocityX += (mouseY-pmouseY) * 0.01;
    velocityY -= (mouseX-pmouseX) * 0.01;
  }

}

void initializeSphere(int res)
{
  sinLUT = new float[SINCOS_LENGTH];
  cosLUT = new float[SINCOS_LENGTH];

  for (int i = 0; i < SINCOS_LENGTH; i++) {
    sinLUT[i] = (float) Math.sin(i * DEG_TO_RAD * SINCOS_PRECISION);
    cosLUT[i] = (float) Math.cos(i * DEG_TO_RAD * SINCOS_PRECISION);
  }

  float delta = (float)SINCOS_LENGTH/res;
  float[] c2x = new float[res];
  float[] c2z = new float[res];
  
  // Calc unit circle in XZ plane
  for (int i = 0; i < res; i++) {
    c2x[i] = -cosLUT[(int) (i*delta) % SINCOS_LENGTH];
    c2z[i] = sinLUT[(int) (i*delta) % SINCOS_LENGTH];
  }
  
  // Computing vertexlist vertexlist starts at south pole
  int vertCount = res * (res-1) + 2;
  int currVert = 0;
  
  // Re-init arrays to store vertices
  sphereX = new float[vertCount];
  sphereY = new float[vertCount];
  sphereZ = new float[vertCount];
  float angle_step = (SINCOS_LENGTH*0.5f)/res;
  float angle = angle_step;
  
  // Step along Y axis
  for (int i = 1; i < res; i++) {
    float curradius = sinLUT[(int) angle % SINCOS_LENGTH];
    float currY = -cosLUT[(int) angle % SINCOS_LENGTH];
    for (int j = 0; j < res; j++) {
      sphereX[currVert] = c2x[j] * curradius;
      sphereY[currVert] = currY;
      sphereZ[currVert++] = c2z[j] * curradius;
    }
    angle += angle_step;
  }
  sDetail = res;
}

// Generic routine to draw textured sphere
void texturedSphere(float r, PImage t) 
{
  int v1,v11,v2;
  r = (r + 240 ) * 0.33;
  beginShape(TRIANGLE_STRIP);
  texture(t);
  float iu=(float)(t.width-1)/(sDetail);
  float iv=(float)(t.height-1)/(sDetail);
  float u=0,v=iv;
  for (int i = 0; i < sDetail; i++) {
    vertex(0, -r, 0,u,0);
    vertex(sphereX[i]*r, sphereY[i]*r, sphereZ[i]*r, u, v);
    u+=iu;
  }
  vertex(0, -r, 0,u,0);
  vertex(sphereX[0]*r, sphereY[0]*r, sphereZ[0]*r, u, v);
  endShape();   
  
  // Middle rings
  int voff = 0;
  for(int i = 2; i < sDetail; i++) {
    v1=v11=voff;
    voff += sDetail;
    v2=voff;
    u=0;
    beginShape(TRIANGLE_STRIP);
    texture(t);
    for (int j = 0; j < sDetail; j++) {
      vertex(sphereX[v1]*r, sphereY[v1]*r, sphereZ[v1++]*r, u, v);
      vertex(sphereX[v2]*r, sphereY[v2]*r, sphereZ[v2++]*r, u, v+iv);
      u+=iu;
    }
  
    // Close each ring
    v1=v11;
    v2=voff;
    vertex(sphereX[v1]*r, sphereY[v1]*r, sphereZ[v1]*r, u, v);
    vertex(sphereX[v2]*r, sphereY[v2]*r, sphereZ[v2]*r, u, v+iv);
    endShape();
    v+=iv;
  }
  u=0;
  
  // Add the northern cap
  beginShape(TRIANGLE_STRIP);
  texture(t);
  for (int i = 0; i < sDetail; i++) {
    v2 = voff + i;
    vertex(sphereX[v2]*r, sphereY[v2]*r, sphereZ[v2]*r, u, v);
    vertex(0, r, 0,u,v+iv);    
    u+=iu;
  }
  vertex(sphereX[voff]*r, sphereY[voff]*r, sphereZ[voff]*r, u, v);
  endShape();
}

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galaxy

milky way

space

733 views

December 12, 2011

collection: Math, Programming and Art, California College of the Arts (Fall '11)

This sketch is running as Java applet, exported from Processing.

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Maximilian Uriarte

The Milky Way

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An enhanced version of my midterm that includes the Milky Way galaxy and more in-depth looks at each planet of our solar system! Click the planets!

Maximilian Uriarte
12 Dec 2011

I can never get Open GL stuff to work! It looks awesome, I promise; but it doesn't appear to want to load here.

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