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How to limit the scope of a light E-mail
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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.


Image

BranchGroup createScene(){

    ...
    
    // Create a Group node that should be lit
    TransformGroup lightTG = new TransformGroup();
    
    
    // Create a light object
    PointLight lampLight = new PointLight();
    lampLight.setPosition(0.1f0.5f, -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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