Examples of javax.media.j3d.RenderingAttributes

javax.media.j3d.RenderingAttributes
The RenderingAttributes object defines common rendering attributes for all primitive types. The rendering attributes are:
- Depth test function - used to compare the incoming (source) depth of each pixel with depth of the pixel stored in frame buffer. If the test passes, the pixel is written, otherwise the pixel is not written. The depth test function is set with the setDepthTestFunction method. By default, LESS_OR_EQUAL is the function used. The depth test function is one of the following:
- Alpha test function - used to compare the incoming (source) alpha value of each pixel with the alpha test value. If the test passes, the pixel is written, otherwise the pixel is not written. The alpha test function is set with the setAlphaTestFunction method. The alpha test function is one of the following:
- Alpha test value - the test value used by the alpha test function. This value is compared to the alpha value of each rendered pixel. The alpha test value is set with the setAlphaTestValue method. The default alpha test value is 0.0.
- Raster operation - the raster operation function for this RenderingAttributes component object. The raster operation is set with the setRasterOp method. The raster operation is enabled or disabled with the setRasterOpEnable method. The raster operation is one of the following:
- Vertex colors - vertex colors can be ignored for this RenderingAttributes object. This capability is set with the setIgnoreVertexColors method. If ignoreVertexColors is false, per-vertex colors are used, when present in the associated geometry objects, taking precedence over the ColoringAttributes color and the specified Material color(s). If ignoreVertexColors is true, per-vertex colors are ignored. In this case, if lighting is enabled, the Material diffuse color will be used as the object color. if lighting is disabled, the ColoringAttributes color is used. The default value is false.
- Visibility flag - when set, invisible objects are not rendered (subject to the visibility policy for the current view), but they can be picked or collided with. This flag is set with the setVisible method. By default, the visibility flag is true.
- Depth buffer - can be enabled or disabled for this RenderingAttributes component object. The setDepthBufferEnable method enables or disabled the depth buffer. The setDepthBufferWriteEnable method enables or disables writing the depth buffer for this object. During the transparent rendering pass, this attribute can be overridden by the depthBufferFreezeTransparent attribute in the View object. Transparent objects include BLENDED transparent and antialiased lines and points. Transparent objects do not include opaque objects or primitives rendered with SCREEN_DOOR transparency. By default, the depth buffer is enabled and the depth buffer write is enabled.
- Stencil buffer - can be enabled or disabled for this RenderingAttributes component object using the setStencilEnable method. If the stencil buffer is disabled, the stencil operation and function are ignored. If a scene graph is rendered on a Canvas3D that does not have a stencil buffer, the stencil buffer will be implicitly disabled for that canvas.
- Stencil write mask - mask that controls which bits of the stencil buffer are written when the stencil buffer is enabled. The default value is ~0 (all ones).
- Stencil operation - a set of three stencil operations performed when: 1) the stencil test fails; 2) the stencil test passes, but the depth test fails; or 3) both the stencil test and depth test pass. The stencil operations are set with the setStencilOp method. The stencil operation is one of the following:
- Stencil test function - used to compare the stencil reference value with the per-pixel stencil value stored in the frame buffer. If the test passes, the pixel is written, otherwise the pixel is not written. The stencil test function, reference value, and comparison mask are set with the setStencilFunction method. The stencil comparison mask is bitwise-ANDed with both the stencil reference value and the stored stencil value prior to doing the comparison. The default value for the reference value is 0. The default value for the comparison mask is ~0 (all ones). The stencil test function is one of the following:
Note: the alpha test, depth test, and stencil functions all use the same enums.
@see Appearance

    TransparencyAttributes transparencyAttributes = new TransparencyAttributes();
    transparencyAttributes.setCapability(TransparencyAttributes.ALLOW_VALUE_WRITE);
    transparencyAttributes.setCapability(TransparencyAttributes.ALLOW_MODE_WRITE);
    wallAppearance.setTransparencyAttributes(transparencyAttributes);
    wallAppearance.setCapability(Appearance.ALLOW_RENDERING_ATTRIBUTES_READ);
    RenderingAttributes renderingAttributes = new RenderingAttributes();
    renderingAttributes.setCapability(RenderingAttributes.ALLOW_VISIBLE_WRITE);
    wallAppearance.setRenderingAttributes(renderingAttributes);
    
    if (outline) {
      wallAppearance.setColoringAttributes(Object3DBranch.OUTLINE_COLORING_ATTRIBUTES);
      wallAppearance.setPolygonAttributes(Object3DBranch.OUTLINE_POLYGON_ATTRIBUTES);

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    // If walls alpha is equal to zero, turn off transparency to get better results 
    transparencyAttributes.setTransparencyMode(wallsAlpha == 0 
        ? TransparencyAttributes.NONE 
        : TransparencyAttributes.NICEST);      
    // Update wall side visibility
    RenderingAttributes renderingAttributes = wallSideAppearance.getRenderingAttributes();
    HomeEnvironment.DrawingMode drawingMode = this.home.getEnvironment().getDrawingMode();
    renderingAttributes.setVisible(drawingMode == null
        || drawingMode == HomeEnvironment.DrawingMode.FILL 
        || drawingMode == HomeEnvironment.DrawingMode.FILL_AND_OUTLINE);
  }

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  /**
   * Sets outline wall side visibility.
   */
  private void updateOutlineWallSideAppearance(final Appearance wallSideAppearance) {
    // Update wall side visibility
    RenderingAttributes renderingAttributes = wallSideAppearance.getRenderingAttributes();
    HomeEnvironment.DrawingMode drawingMode = this.home.getEnvironment().getDrawingMode();
    renderingAttributes.setVisible(drawingMode == HomeEnvironment.DrawingMode.OUTLINE 
        || drawingMode == HomeEnvironment.DrawingMode.FILL_AND_OUTLINE);
  }

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    } else if (node instanceof Link) {
      writeNode(((Link)node).getSharedGroup(), nodeName, parentTransformations);
    } else if (node instanceof Shape3D) {
      Shape3D shape = (Shape3D)node;
      Appearance appearance = shape.getAppearance();
      RenderingAttributes renderingAttributes = appearance != null 
          ? appearance.getRenderingAttributes() : null;
      if (renderingAttributes == null
          || renderingAttributes.getVisible()) {
        // Build a unique human readable object name
        String objectName = "";
        if (accept(nodeName)) {
          objectName = nodeName + "_";
        }

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    } else if (node instanceof Link) {
      count = getVertexCount(((Link)node).getSharedGroup());
    } else if (node instanceof Shape3D) {
      Shape3D shape = (Shape3D)node;
      Appearance appearance = shape.getAppearance();
      RenderingAttributes renderingAttributes = appearance != null 
          ? appearance.getRenderingAttributes() : null;
      if (renderingAttributes == null
          || renderingAttributes.getVisible()) {
        for (int i = 0, n = shape.numGeometries(); i < n; i++) {
          Geometry geometry = shape.getGeometry(i);
          if (geometry instanceof GeometryArray) {
            count += ((GeometryArray)geometry).getVertexCount();
          }

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    } else if (node instanceof Link) {
      computeVerticesOnFloor(((Link)node).getSharedGroup(), vertices, parentTransformations);
    } else if (node instanceof Shape3D) {
      Shape3D shape = (Shape3D)node;
      Appearance appearance = shape.getAppearance();
      RenderingAttributes renderingAttributes = appearance != null 
          ? appearance.getRenderingAttributes() : null;
      TransparencyAttributes transparencyAttributes = appearance != null 
          ? appearance.getTransparencyAttributes() : null;
      if ((renderingAttributes == null
            || renderingAttributes.getVisible())
          && (transparencyAttributes == null
              || transparencyAttributes.getTransparency() < 1)) {
        // Compute shape geometries area
        for (int i = 0, n = shape.numGeometries(); i < n; i++) {
          Geometry geometry = shape.getGeometry(i);

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    } else if (node instanceof Link) {
      computeAreaOnFloor(((Link)node).getSharedGroup(), nodeArea, parentTransformations);
    } else if (node instanceof Shape3D) {
      Shape3D shape = (Shape3D)node;
      Appearance appearance = shape.getAppearance();
      RenderingAttributes renderingAttributes = appearance != null 
          ? appearance.getRenderingAttributes() : null;
      TransparencyAttributes transparencyAttributes = appearance != null 
          ? appearance.getTransparencyAttributes() : null;
      if ((renderingAttributes == null
            || renderingAttributes.getVisible())
          && (transparencyAttributes == null
              || transparencyAttributes.getTransparency() < 1)) {
        // Compute shape geometries area
        for (int i = 0, n = shape.numGeometries(); i < n; i++) {
          computeGeometryAreaOnFloor(shape.getGeometry(i), parentTransformations, nodeArea);

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      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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      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
          && (getUserData() instanceof Light)
          && shapeName.startsWith(ModelManager.LIGHT_SHAPE_PREFIX)
          && this.home != null
          && !isSelected(this.home.getSelectedItems())) {
        // Don't display light sources shapes of unselected lights
        visible = false;
      }
      // Change visibility
      renderingAttributes.setVisible(visible);
    }
  }

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    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);

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