Examples of ca.eandb.jmist.framework.SceneElement

ca.eandb.jmist.framework.SceneElement
The basic component of a scene description. A SceneElement:
- Can test visibility between two points, or along a ray.
- Can be queried for ray-intersections along a ray.
- Knows about the light sources within it which have a physical manifestation (i.e. light-emitting geometry, as oposed to point light sources.
- Can generate random SurfacePoints over the geometry they represent (optional operation).
- May apply Materials or Shaders to the Intersections and SurfacePoints generated by its methods.
- Is composed of zero or more "primitives". Many operations may be applied to the individual primitives as well as the SceneElement as a whole.
@author Brad Kimmel

    if (sr == null) {
      return null;
    }
    Scene scene = pathInfo.getScene();
    Ray3 ray = sr.getRay();
    SceneElement root = scene.getRoot();
    Intersection x = NearestIntersectionRecorder
        .computeNearestIntersection(ray, root);
    if (x != null) {
      ShadingContext context = new MinimalShadingContext(Random.DEFAULT);
      x.prepareShadingContext(context);

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    Material matteWhite = new LambertianMaterial(colorModel.getContinuous(white));
    Material matteGreen = new LambertianMaterial(colorModel.getContinuous(green));
    Material matteRed = new LambertianMaterial(colorModel.getContinuous(red));
    Material matteEmissive = new LambertianMaterial(colorModel.getGray(0.78), colorModel.getContinuous(emission));


    SceneElement materialMap = new MaterialMapSceneElement(geometry)
        .addMaterial("white", matteWhite)
        .addMaterial("red", matteRed)
        .addMaterial("green", matteGreen)
        .addMaterial("emissive", matteEmissive)
        .setMaterialRange(0, 4, "white")    // ceiling

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    Material matteWhite = new LambertianMaterial(colorModel.getContinuous(white));
    Material matteGreen = new LambertianMaterial(colorModel.getContinuous(green));
    Material matteRed = new LambertianMaterial(colorModel.getContinuous(red));
    Material matteEmissive = new LambertianMaterial(colorModel.getGray(0.78), colorModel.getContinuous(emission));


    SceneElement materialMap = new MaterialMapSceneElement(geometry)
        .addMaterial("white", matteWhite)
        .addMaterial("red", matteRed)
        .addMaterial("green", matteGreen)
        .addMaterial("emissive", matteEmissive)
        .setMaterialRange(0, 4, "white")    // ceiling

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    matteWhite = new ScatteringAdapterMaterial(matteWhite, strategy, weight);
    matteGreen = new ScatteringAdapterMaterial(matteGreen, strategy, weight);
    matteRed = new ScatteringAdapterMaterial(matteRed, strategy, weight);
    matteEmissive = new ScatteringAdapterMaterial(matteEmissive, strategy, weight);


    SceneElement materialMap = new MaterialMapSceneElement(geometry)
        .addMaterial("white", matteWhite)
        .addMaterial("red", matteRed)
        .addMaterial("green", matteGreen)
        .addMaterial("emissive", matteEmissive)
        .setMaterialRange(0, 4, "white")    // ceiling

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      return;
    }
    DxfReader dxf = new AsciiDxfReader(fr);
    DxfSceneBuilder builder = new DxfSceneBuilder();
    ColorModel cm = RGBColorModel.getInstance();
    SceneElement elem = builder.createScene(cm, dxf);
    System.out.println(elem.toString());
  }

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  /* (non-Javadoc)
   * @see ca.eandb.jmist.framework.SceneElement#intersects(int, ca.eandb.jmist.math.Box3)
   */
  public boolean intersects(int index, Box3 box) {
    SceneElement child = children.get(index);
    int n = child.getNumPrimitives();
    for (int i = 0; i < n; i++) {
      if (child.intersects(i, box)) {
        return true;
      }
    }
    return false;
  }

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   * @see ca.eandb.jmist.framework.SceneElement#getBoundingBox(int)
   */
  public Box3 getBoundingBox(int index) {
    int childIndex = getChildIndex(index);
    int offset = offsets.get(childIndex);
    SceneElement child = children.get(childIndex);
    return child.getBoundingBox(index - offset);
  }

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   * @see ca.eandb.jmist.framework.SceneElement#getBoundingSphere(int)
   */
  public Sphere getBoundingSphere(int index) {
    int childIndex = getChildIndex(index);
    int offset = offsets.get(childIndex);
    SceneElement child = children.get(childIndex);
    return child.getBoundingSphere(index - offset);
  }

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   * @see ca.eandb.jmist.framework.SceneElement#intersect(int, ca.eandb.jmist.math.Ray3, ca.eandb.jmist.framework.IntersectionRecorder)
   */
  public void intersect(int index, Ray3 ray, IntersectionRecorder recorder) {
    int childIndex = getChildIndex(index);
    int offset = offsets.get(childIndex);
    SceneElement child = children.get(childIndex);
    child.intersect(index - offset, ray, recorder);
  }

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Related Classes of ca.eandb.jmist.framework.SceneElement

ca.eandb.jmist.framework.geometry.CompositeGeometry

ca.eandb.jmist.framework.loader.dxf.DxfSceneBuilder

ca.eandb.jmist.framework.path.AbstractPathNode

ca.eandb.jmist.framework.scene.BranchSceneElement

ca.eandb.jmist.framework.scene.CornellBoxScene

ca.eandb.jmist.framework.scene.EmptyCornellBoxScene

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