Examples of javax.media.j3d.Appearance

javax.media.j3d.Appearance
The Appearance object defines all rendering state that can be set as a component object of a Shape3D node. The rendering state consists of the following:
- Coloring attributes - defines attributes used in color selection and shading. These attributes are defined in a ColoringAttributes object.
- Line attributes - defines attributes used to define lines, including the pattern, width, and whether antialiasing is to be used. These attributes are defined in a LineAttributes object.
- Point attributes - defines attributes used to define points, including the size and whether antialiasing is to be used. These attributes are defined in a PointAttributes object.
- Polygon attributes - defines the attributes used to define polygons, including culling, rasterization mode (filled, lines, or points), constant offset, offset factor, and whether back back facing normals are flipped. These attributes are defined in a PolygonAttributes object.
- Rendering attributes - defines rendering operations, including the alpha test function and test value, the raster operation, whether vertex colors are ignored, whether invisible objects are rendered, and whether the depth buffer is enabled. These attributes are defined in a RenderingAttributes object.
- Transparency attributes - defines the attributes that affect transparency of the object, such as the transparency mode (blended, screen-door), blending function (used in transparency and antialiasing operations), and a blend value that defines the amount of transparency to be applied to this Appearance component object.
- Material - defines the appearance of an object under illumination, such as the ambient color, diffuse color, specular color, emissive color, and shininess. These attributes are defined in a Material object.
- Texture - defines the texture image and filtering parameters used when texture mapping is enabled. These attributes are defined in a Texture object.
- Texture attributes - defines the attributes that apply to texture mapping, such as the texture mode, texture transform, blend color, and perspective correction mode. These attributes are defined in a TextureAttributes object.
- Texture coordinate generation - defines the attributes that apply to texture coordinate generation, such as whether texture coordinate generation is enabled, coordinate format (2D or 3D coordinates), coordinate generation mode (object linear, eye linear, or spherical reflection mapping), and the R, S, and T coordinate plane equations. These attributes are defined in a TexCoordGeneration object.
- Texture unit state - array that defines texture state for each of N separate texture units. This allows multiple textures to be applied to geometry. Each TextureUnitState object contains a Texture object, TextureAttributes, and TexCoordGeneration object for one texture unit. If the length of the texture unit state array is greater than 0, then the array is used for all texture state; the individual Texture, TextureAttributes, and TexCoordGeneration objects in this Appearance object are not used and and must not be set by an application. If the length of the texture unit state array is 0, the multi-texture is disabled and the Texture, TextureAttributes, and TexCoordGeneration objects in the Appearance object are used. If the application sets the existing Texture, TextureAttributes, and TexCoordGeneration objects to non-null values, they effectively define the state for texture unit 0. If the TextureUnitState array is set to a non-null, non-empty array, the individual TextureUnitState objects define the state for texture units 0 through n -1. If both the old and new values are set, an exception is thrown.
@see ColoringAttributes @see LineAttributes @see PointAttributes @see PolygonAttributes @see RenderingAttributes @see TransparencyAttributes @see Material @see Texture @see TextureAttributes @see TexCoordGeneration @see TextureUnitState

     * describe the same colors, transparency and texture. 
     */
    @Override
    public boolean equals(Object obj) {
      if (obj instanceof ComparableAppearance) {
        Appearance appearance2 = ((ComparableAppearance)obj).appearance;
        // Compare coloring attributes
        ColoringAttributes coloringAttributes1 = this.appearance.getColoringAttributes();
        ColoringAttributes coloringAttributes2 = appearance2.getColoringAttributes();
        if ((coloringAttributes1 == null) ^ (coloringAttributes2 == null)) {
          return false;
        } else if (coloringAttributes1 != coloringAttributes2) {
          Color3f color1 = new Color3f();
          Color3f color2 = new Color3f();
          coloringAttributes1.getColor(color1);
          coloringAttributes2.getColor(color2);
          if (!color1.equals(color2)) {
            return false;
          } 
        }
        // Compare material colors
        Material material1 = this.appearance.getMaterial();
        Material material2 = appearance2.getMaterial();
        if ((material1 == null) ^ (material2 == null)) {
          return false;
        } else if (material1 != material2) {
          Color3f color1 = new Color3f();
          Color3f color2 = new Color3f();
          material1.getAmbientColor(color1);
          material2.getAmbientColor(color2);
          if (!color1.equals(color2)) {
            return false;
          } else {
            material1.getDiffuseColor(color1);
            material2.getDiffuseColor(color2);
            if (!color1.equals(color2)) {
              return false;
            } else {
              material1.getEmissiveColor(color1);
              material2.getEmissiveColor(color2);
              if (!color1.equals(color2)) {
                return false;
              } else {
                material1.getSpecularColor(color1);
                material2.getSpecularColor(color2);
                if (!color1.equals(color2)) {
                  return false;
                } else if (material1.getShininess() != material2.getShininess()) {
                  return false;
                } else if (material1.getClass() != material2.getClass()) {
                  return false;
                } else if (material1.getClass() == OBJMaterial.class) {
                  OBJMaterial objMaterial1 = (OBJMaterial)material1;
                  OBJMaterial objMaterial2 = (OBJMaterial)material2;
                  if (objMaterial1.isOpticalDensitySet() ^ objMaterial2.isOpticalDensitySet()) {
                    return false;
                  } else if (objMaterial1.isOpticalDensitySet() && objMaterial2.isOpticalDensitySet()
                            && objMaterial1.getOpticalDensity() != objMaterial2.getOpticalDensity()) {
                    return false;
                  } else if (objMaterial1.isIlluminationModelSet() ^ objMaterial2.isIlluminationModelSet()) {
                    return false;
                  } else if (objMaterial1.isIlluminationModelSet() && objMaterial2.isIlluminationModelSet()
                            && objMaterial1.getIlluminationModel() != objMaterial2.getIlluminationModel()) {
                    return false;
                  } else if (objMaterial1.isSharpnessSet() ^ objMaterial2.isSharpnessSet()) {
                    return false;
                  } else if (objMaterial1.isSharpnessSet() && objMaterial2.isSharpnessSet()
                            && objMaterial1.getSharpness() != objMaterial2.getSharpness()) {
                    return false;
                  }
                }
              }
            }
          }
        }
        // Compare transparency
        TransparencyAttributes transparency1 = this.appearance.getTransparencyAttributes();
        TransparencyAttributes transparency2 = appearance2.getTransparencyAttributes();
        if ((transparency1 == null) ^ (transparency2 == null)) {
          return false;
        } else if (transparency1 != transparency2) {
          if (transparency1.getTransparency() != transparency2.getTransparency()) {
            return false;
          }
        }
        // Compare texture
        Texture texture1 = this.appearance.getTexture();
        Texture texture2 = appearance2.getTexture();
        if ((texture1 == null) ^ (texture2 == null)) {
          return false;
        } else if (texture1 != texture2) {
          if (texture1.getImage(0) != texture2.getImage(0)) {
            return false;

View Full Code Here

  private Node getModelBox(Color color) {
    Material material = new Material();
    material.setDiffuseColor(new Color3f(color));
    material.setAmbientColor(new Color3f(color.darker()));
    
    Appearance boxAppearance = new Appearance();
    boxAppearance.setMaterial(material);
    return new Box(0.5f, 0.5f, 0.5f, boxAppearance);
  }

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        setOutlineAppearance((Node)enumeration.nextElement());
      }
    } else if (node instanceof Link) {
      setOutlineAppearance(((Link)node).getSharedGroup());
    } else if (node instanceof Shape3D) {        
      Appearance outlineAppearance = new Appearance();
      ((Shape3D)node).setAppearance(outlineAppearance);
      outlineAppearance.setCapability(Appearance.ALLOW_RENDERING_ATTRIBUTES_READ);
      RenderingAttributes renderingAttributes = new RenderingAttributes();
      renderingAttributes.setCapability(RenderingAttributes.ALLOW_VISIBLE_WRITE);
      outlineAppearance.setRenderingAttributes(renderingAttributes);
      outlineAppearance.setColoringAttributes(Object3DBranch.OUTLINE_COLORING_ATTRIBUTES);
      outlineAppearance.setPolygonAttributes(Object3DBranch.OUTLINE_POLYGON_ATTRIBUTES);
      outlineAppearance.setLineAttributes(Object3DBranch.OUTLINE_LINE_ATTRIBUTES);
    }
  }

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    } else if (node instanceof Link) {
      node.setCapability(Link.ALLOW_SHARED_GROUP_READ);
      setModelCapabilities(((Link)node).getSharedGroup());
    } else if (node instanceof Shape3D) {        
      Shape3D shape = (Shape3D)node;
      Appearance appearance = shape.getAppearance();
      if (appearance != null) {
        setAppearanceCapabilities(appearance);
      }
      Enumeration<?> enumeration = shape.getAllGeometries();
      while (enumeration.hasMoreElements()) {

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      final Shape3D shape = (Shape3D)node;
      String shapeName = (String)shape.getUserData();
      // Change material and texture of all shapes that are not window panes 
      if (shapeName == null
          || !shapeName.startsWith(ModelManager.WINDOW_PANE_SHAPE_PREFIX)) {
        Appearance appearance = shape.getAppearance();
        if (appearance == null) {
          appearance = createAppearanceWithChangeCapabilities();
          ((Shape3D)node).setAppearance(appearance);
        }
        
        // Check appearance wasn't already changed
        if (!modifiedAppearances.contains(appearance)) {
          // Use appearance user data to store shape default material
          DefaultMaterialAndTexture defaultMaterialAndTexture = (DefaultMaterialAndTexture)appearance.getUserData();
          if (defaultMaterialAndTexture == null) {
            defaultMaterialAndTexture = new DefaultMaterialAndTexture(appearance);
            appearance.setUserData(defaultMaterialAndTexture);
          }
          float materialShininess = shininess != null
              ? shininess.floatValue()
              : (appearance.getMaterial() != null
                  ? appearance.getMaterial().getShininess() / 128f
                  : 0);
          if (color != null && defaultMaterialAndTexture.getTexture() == null) {
            // Change material if no default texture is displayed on the shape
            // (textures always keep the colors of their image file)
            appearance.setMaterial(getMaterial(color, color, materialShininess));
            appearance.setTransparencyAttributes(defaultMaterialAndTexture.getTransparencyAttributes());
            appearance.setPolygonAttributes(defaultMaterialAndTexture.getPolygonAttributes());
            appearance.setTexCoordGeneration(defaultMaterialAndTexture.getTexCoordGeneration());
            appearance.setTextureAttributes(defaultMaterialAndTexture.getTextureAttributes());
            appearance.setTexture(null);
          } else if (color == null && texture != null) {
            // Change material to white then texture
            appearance.setMaterial(getMaterial(DEFAULT_COLOR, DEFAULT_AMBIENT_COLOR, materialShininess));
            TexCoordGeneration texCoordGeneration = new TexCoordGeneration(TexCoordGeneration.OBJECT_LINEAR,
                TexCoordGeneration.TEXTURE_COORDINATE_2,
                new Vector4f(-pieceSize.x / modelSize.x / texture.getWidth(), 0, 0, 0), 
                new Vector4f(0, pieceSize.y / modelSize.y / texture.getHeight(), pieceSize.z / modelSize.z / texture.getHeight(), 0));
            appearance.setTexCoordGeneration(texCoordGeneration);
            appearance.setTextureAttributes(MODULATE_TEXTURE_ATTRIBUTES);
            TextureManager.getInstance().loadTexture(texture.getImage(), waitTextureLoadingEnd,
                new TextureManager.TextureObserver() {
                    public void textureUpdated(Texture texture) {
                      if (TextureManager.getInstance().isTextureTransparent(texture)) {
                        shape.getAppearance().setTransparencyAttributes(DEFAULT_TEXTURED_SHAPE_TRANSPARENCY_ATTRIBUTES);
                        shape.getAppearance().setPolygonAttributes(DEFAULT_TEXTURED_SHAPE_POLYGON_ATTRIBUTES);
                      }
                      shape.getAppearance().setTexture(texture);
                    }
                  });
          } else {
            // Restore default material and texture
            Material defaultMaterial = defaultMaterialAndTexture.getMaterial();
            if (defaultMaterial != null && shininess != null) {
              defaultMaterial = (Material)defaultMaterial.cloneNodeComponent(true);
              defaultMaterial.setSpecularColor(new Color3f(shininess, shininess, shininess));
              defaultMaterial.setShininess(shininess * 128);
            }
            appearance.setMaterial(defaultMaterial);
            appearance.setTransparencyAttributes(defaultMaterialAndTexture.getTransparencyAttributes());
            appearance.setPolygonAttributes(defaultMaterialAndTexture.getPolygonAttributes());
            appearance.setTexCoordGeneration(defaultMaterialAndTexture.getTexCoordGeneration());
            appearance.setTexture(defaultMaterialAndTexture.getTexture());
            appearance.setTextureAttributes(defaultMaterialAndTexture.getTextureAttributes());
          }
          // Store modified appearances to avoid changing their values more than once
          modifiedAppearances.add(appearance);
        }
      }

View Full Code Here

      }
    } else if (node instanceof Link) {
      setVisible(((Link)node).getSharedGroup(), visible);
    } else if (node instanceof Shape3D) {
      final Shape3D shape = (Shape3D)node;
      Appearance appearance = shape.getAppearance();
      if (appearance == null) {
        appearance = createAppearanceWithChangeCapabilities();
        ((Shape3D)node).setAppearance(appearance);
      }
      RenderingAttributes renderingAttributes = appearance.getRenderingAttributes();
      if (renderingAttributes == null) {
        renderingAttributes = new RenderingAttributes();
        renderingAttributes.setCapability(RenderingAttributes.ALLOW_VISIBLE_WRITE);
        appearance.setRenderingAttributes(renderingAttributes);
      }
      
      String shapeName = (String)shape.getUserData();
      if (visible 
          && shapeName != null

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        setCullFace((Node)enumeration.nextElement(), cullFace);
      }
    } else if (node instanceof Link) {
      setCullFace(((Link)node).getSharedGroup(), cullFace);
    } else if (node instanceof Shape3D) {
      Appearance appearance = ((Shape3D)node).getAppearance();
      if (appearance == null) {
        appearance = createAppearanceWithChangeCapabilities();
        ((Shape3D)node).setAppearance(appearance);
      }
      PolygonAttributes polygonAttributes = appearance.getPolygonAttributes();
      if (polygonAttributes == null) {
        polygonAttributes = createPolygonAttributesWithChangeCapabilities();
        appearance.setPolygonAttributes(polygonAttributes);
      }
      
      // Change cull face 
      if (polygonAttributes.getCullFace() != PolygonAttributes.CULL_NONE) {
        polygonAttributes.setCullFace(cullFace);

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        setBackFaceNormalFlip((Node)enumeration.nextElement(), backFaceNormalFlip);
      }
    } else if (node instanceof Link) {
      setBackFaceNormalFlip(((Link)node).getSharedGroup(), backFaceNormalFlip);
    } else if (node instanceof Shape3D) {
      Appearance appearance = ((Shape3D)node).getAppearance();
      if (appearance == null) {
        appearance = createAppearanceWithChangeCapabilities();
        ((Shape3D)node).setAppearance(appearance);
      }
      PolygonAttributes polygonAttributes = appearance.getPolygonAttributes();
      if (polygonAttributes == null) {
        polygonAttributes = createPolygonAttributesWithChangeCapabilities();
        appearance.setPolygonAttributes(polygonAttributes);
      }
      
      // Change back face normal flip
      polygonAttributes.setBackFaceNormalFlip(backFaceNormalFlip);
    }

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    polygonAttributes.setCapability(PolygonAttributes.ALLOW_NORMAL_FLIP_WRITE);
    return polygonAttributes;
  }


  private Appearance createAppearanceWithChangeCapabilities() {
    Appearance appearance = new Appearance();
    setAppearanceCapabilities(appearance);
    return appearance;
  }

View Full Code Here

    // Allow room shape to change its geometry
    roomShape.setCapability(Shape3D.ALLOW_GEOMETRY_WRITE);
    roomShape.setCapability(Shape3D.ALLOW_GEOMETRY_READ);
    roomShape.setCapability(Shape3D.ALLOW_APPEARANCE_READ);


    Appearance roomAppearance = new Appearance();
    roomShape.setAppearance(roomAppearance);
    roomAppearance.setCapability(Appearance.ALLOW_RENDERING_ATTRIBUTES_READ);
    RenderingAttributes renderingAttributes = new RenderingAttributes();
    renderingAttributes.setCapability(RenderingAttributes.ALLOW_VISIBLE_WRITE);
    roomAppearance.setRenderingAttributes(renderingAttributes);
    roomAppearance.setCapability(Appearance.ALLOW_MATERIAL_WRITE);
    roomAppearance.setMaterial(DEFAULT_MATERIAL);      
    roomAppearance.setCapability(Appearance.ALLOW_TEXTURE_WRITE);
    roomAppearance.setCapability(Appearance.ALLOW_TEXTURE_READ);
    // Mix texture and room color
    roomAppearance.setTextureAttributes(MODULATE_TEXTURE_ATTRIBUTES);
    
    return roomShape;
  }

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