gov/nasa/worldwind/Material.java

   1 /*
   2 Copyright (C) 2001, 2006 United States Government
   3 as represented by the Administrator of the
   4 National Aeronautics and Space Administration.
   5 All Rights Reserved.
   6 */
   7 package gov.nasa.worldwind;
   8
   9 import java.awt.Color;
  10
  11 /**
  12  * @author tag
  13  * @version $Id: Material.java 1175 2007-03-07 21:16:55Z tgaskins $
  14  */
  15 public class Material
  16 {
  17     public static final int SPECULAR = 0;
  18     public static final int DIFFUSE = 1;
  19     public static final int AMBIENT = 2;
  20     public static final int EMISSION = 3;
  21
  22     public static final Material WHITE = new Material(new Color(0.9f, 0.9f, 0.9f, 0.0f), new Color(0.8f, 0.8f, 0.8f,
  23         0.0f), new Color(0.2f, 0.2f, 0.2f, 0.0f), new Color(0.0f, 0.0f, 0.0f, 0.0f), 20f);
  24
  25     public static final Material RED = new Material(new Color(0.75f, 0.0f, 0.0f, 0.0f), new Color(0.8f, 0.0f, 0.0f,
  26         0.0f), new Color(0.2f, 0.0f, 0.0f, 0.0f), new Color(0.0f, 0.0f, 0.0f, 0.0f), 20f);
  27
  28     public static final Material GREEN = new Material(new Color(0.0f, 0.75f, 0.0f, 0.0f), new Color(0.0f, 0.8f, 0.0f,
  29         0.0f), new Color(0.0f, 0.2f, 0.0f, 0.0f), new Color(0.0f, 0.0f, 0.0f, 0.0f), 20f);
  30
  31     public static final Material BLUE = new Material(new Color(0.0f, 0.0f, 0.75f, 0.0f), new Color(0.0f, 0.0f, 0.8f,
  32         0.0f), new Color(0.0f, 0.0f, 0.2f, 0.0f), new Color(0.0f, 0.0f, 0.0f, 0.0f), 20f);
  33
  34     public static final Material YELLOW = new Material(new Color(0.75f, 0.75f, 0.55f, 0.0f), new Color(0.8f, 0.8f, 0.0f,
  35         0.0f), new Color(0.2f, 0.2f, 0.01f, 0.0f), new Color(0.0f, 0.0f, 0.0f, 0.0f), 20f);
  36
  37     private final Color specular;
  38     private final Color diffuse;
  39     private final Color ambient;
  40     private final Color emission;
  41     private final float shininess;
  42
  43     /**
  44      * @param specular
  45      * @param diffuse
  46      * @param ambient
  47      * @param emission
  48      * @param shininess
  49      * @throws IllegalArgumentException if <code>specular</code>, <code>diffuse</code>, <code>ambient</code> or
  50      *                                  <code>emission</code> is null
  51      */
  52     public Material(Color specular, Color diffuse, Color ambient, Color emission, float shininess)
  53     {
  54         if (specular == null || diffuse == null || ambient == null || emission == null)
  55         {
  56             String msg = WorldWind.retrieveErrMsg("nullValue.ColorIsNull");
  57             WorldWind.logger().log(java.util.logging.Level.FINE, msg);
  58             throw new IllegalArgumentException(msg);
  59         }
  60
  61         this.specular = specular;
  62         this.diffuse = diffuse;
  63         this.ambient = ambient;
  64         this.emission = emission;
  65         this.shininess = shininess;
  66     }
  67
  68     public Color getSpecular()
  69     {
  70         return this.specular;
  71     }
  72
  73     public Color getDiffuse()
  74     {
  75         return this.diffuse;
  76     }
  77
  78     public Color getAmbient()
  79     {
  80         return this.ambient;
  81     }
  82
  83     public Color getEmission()
  84     {
  85         return this.emission;
  86     }
  87
  88     public float getShininess()
  89     {
  90         return this.shininess;
  91     }
  92
  93     public void apply(javax.media.opengl.GL gl, int face)
  94     {
  95         float[] rgba = new float[4];
  96
  97         gl.glMaterialfv(face, javax.media.opengl.GL.GL_SPECULAR, this.specular.getRGBComponents(rgba), 0);
  98         gl.glMaterialfv(face, javax.media.opengl.GL.GL_DIFFUSE, this.diffuse.getRGBComponents(rgba), 0);
  99         gl.glMaterialfv(face, javax.media.opengl.GL.GL_AMBIENT, this.ambient.getRGBComponents(rgba), 0);
 100         gl.glMaterialf(face, javax.media.opengl.GL.GL_SHININESS, this.shininess);
 101         gl.glMaterialfv(face, javax.media.opengl.GL.GL_EMISSION, this.emission.getRGBComponents(rgba), 0);
 102     }
 103 }