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How to specify the material of a visual object |
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The material properties of a visual object are specified in the Material object of
an appearance bundle. The Material object specifies ambient, diffuse, specular, and
emissive colors and a shininess value. Each of the first three colors are used in the
lighting model to calculate the corresponding reflection. The emissive color allows
visual objects to "glow in the dark". The shininess value is only used in calculating
specular reflections.
public BranchGroup createSceneGraph() {
BranchGroup objRoot = new BranchGroup();
// Create a Appearance object for the visual object
Appearance appear=new Appearance();
// Create a Material object
Material material=new Material();
// Config it!
material.setAmbientColor(new Color3f(1.0f,0.0f,0.0f));
// Apply the material to the Appearance
appear.setMaterial(material);
Sphere sphere=new Sphere(0.1f,appear);
objRoot.addChild(sphere);
BoundingSphere bounds=new BoundingSphere();
AmbientLight ambientLight=new AmbientLight();
ambientLight.setInfluencingBounds(bounds);
objRoot.addChild(ambientLight);
return objRoot;
}
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