Point Light Attenuation

Point light rays are attenuated:

• As distance increases, light brightness decreases

• Attenuation is controlled by three coefficients:

• constant, linear, and quadratic

void setPosition( Point3f pos ) 

0.0, 0.0, 0.0 

void setAttenuation( Point3f atten )

 1.0, 0.0, 0.0 

TransformGroup group = new TransformGroup( );
. . .
PointLight light = new PointLight( );
light.setEnable( true );
light.setColor( new Color3f( 1.0f, 1.0f, 1.0f ) );
light.setPosition( new Point3f( 0.0f, 1.0f, 0.0f ) );
light.setAttenuation( new Point3f( 1.0f, 0.0f, 0.0f ) );
. . .
light.setInfluencingBounds( bounds );
group.addChild( light );