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How to limit the scope of a light |
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A bounding region, whether a Bounds or a BoundingLeaf object, specifies the region
of influence of a light object. A specified scope can further limit the influence
of a light to a portion of the scene graph. By default, all lights have the scope
of the virtual world in which it resides. Adding a scope specification further reduces
the influence of a light to the visual objects in the scene graph below the group(s)
specified.
BranchGroup createScene(){
...
// Create a Group node that should be lit
TransformGroup lightTG = new TransformGroup();
// Create a light object
PointLight lampLight = new PointLight();
lampLight.setPosition(0.1f, 0.5f, -0.1f);
lampLight.setColor(new Color3f(1.0f,0.0f,0.0f));
lampLight.setInfluencingBounds(new BoundingSphere());
// Limit the scope of the light
lampLight.addScope(lightTG);
// Add the light to the group node
lightTG.addChild(lampLight);
...
}
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