void setup()
{
 size(420*2, 297*2,OPENGL);
 frameRate(100);

Planet p = new Planet();

}

void draw(){
 
  background(0);
  p.update();
 
 }
//PImage b;

//b = loadImage("venus.jpg");

//planet(b, 1024);

class Planet {
import processing.opengl.PGraphicsOpenGL;

import javax.media.opengl.GL;

import javax.media.opengl.glu.GLU;

import javax.media.opengl.glu.GLUquadric;

import com.sun.opengl.util.texture.Texture;

import com.sun.opengl.util.texture.TextureIO;

import peasy.PeasyCam;  //peasy camera control

PGraphicsOpenGL pgl;

GL gl;

GLU glu;

GLUquadric mysphere;

Texture earth;

PeasyCam cam;

float rotateearth = 0;

//planet(PImage img, float i ) {
Planet(){
 
  size(screenWidth, screenHeight, OPENGL );

  pgl = (PGraphicsOpenGL) g; 

  gl = pgl.gl; 

  glu = pgl.glu;

  mysphere = glu.gluNewQuadric();

  glu.gluQuadricDrawStyle(mysphere, glu.GLU_FILL);

  glu.gluQuadricNormals(mysphere, glu.GLU_NONE);

  glu.gluQuadricTexture(mysphere, true);

  float fov = PI/3.0;

  float cameraZ = (height/2.0) / tan(fov/2.0);

  perspective(fov, float(width)/float(height), cameraZ/10.0, cameraZ*32.0);

  cam = new PeasyCam(this, width);

  cam.setResetOnDoubleClick(false);

  cam.setMinimumDistance(width/14);

  cam.setMaximumDistance(width*10);

  cam.rotateZ(radians(-90));

  cam.rotateX(radians(105));

 

  try {   

    earth = TextureIO.newTexture(new File(dataPath("venus.jpg")), true);

      /*  http://apod.nasa.gov/apod/image/0203/earthtruecolor_nasa_big.jpg */

  } 

  catch (IOException e) {       

    javax.swing.JOptionPane.showMessageDialog(this, e);

  }

  frameRate(24);

}

void draw() {

  background(0);

  pgl.beginGL();

  gl.glPushMatrix();

  gl.glRotatef(degrees(rotateearth),0.0,0.0,1.0);

  gl.glColor3f(1,1,1);

  earth.enable();

  earth.bind();

  glu.gluSphere(mysphere, 1024/PI, 40, 40);

  earth.disable();

  gl.glPopMatrix();

  pgl.endGL();

  if (rotateearth < 360) {

    rotateearth = rotateearth + .0005;

  }

  else {

    rotateearth = 0;

  }

  println(frameRate);
 
}
}