com.jme.util
Class LightStateCreator

java.lang.Object
  com.jme.util.LightStateCreator

public class LightStateCreator

extends java.lang.Object

The LightStateCreator class is used to sort lights in a scene. The utility allows the user to place multiple lights in a single container and the best eight lights (those lights that most directly affect a Spatial) will be applied.

Author:

Badmi

Constructor Summary

LightStateCreator()
Creates a new instance of LightStateCreator

Method Summary

void	addLight(Light l) Adds a light for the controller to sort into a spatial.
LightState	createLightState(Spatial sp) Creates a new LightState for a spatial placing the "best" eight lights currently maintained by the LightStateCreator.
Light	get(int i) Gets the Ith light from the creator.
protected float	getColorValue(Light l)
protected float	getValueFor(Light l, BoundingVolume val)
protected float	max(ColorRGBA a)
int	numberOfLights() Returns the number of lights in the creator.
protected void	quickSort(int minindex, int maxindex, Spatial sp)
void	resortLightsFor(LightState ls, Spatial sp) Gives the LightState the best possible lights for the Spatial.
protected void	swap(int a, int b) Swaps point a and b in the list

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LightStateCreator

public LightStateCreator()

Creates a new instance of LightStateCreator

Method Detail

addLight

public void addLight(Light l)

Adds a light for the controller to sort into a spatial. All the lights must be added before the lights could be sorted.

get

public Light get(int i)

Gets the Ith light from the creator. The placement of the light is subject to change.

numberOfLights

public int numberOfLights()

Returns the number of lights in the creator.

createLightState

public LightState createLightState(Spatial sp)

Creates a new LightState for a spatial placing the "best" eight lights currently maintained by the LightStateCreator.

resortLightsFor

public void resortLightsFor(LightState ls,
                            Spatial sp)

Gives the LightState the best possible lights for the Spatial. The spatial must be using bounding volumes for this process to work properly.

quickSort

protected void quickSort(int minindex,
                         int maxindex,
                         Spatial sp)

swap

protected void swap(int a,
                    int b)

Swaps point a and b in the list

max

protected float max(ColorRGBA a)

getColorValue

protected float getColorValue(Light l)

getValueFor

protected float getValueFor(Light l,
                            BoundingVolume val)