com.jme3.shadow

Class DirectionalLightShadowFilterVR

java.lang.Object

com.jme3.post.Filter

com.jme3.shadow.AbstractShadowFilterVR<DirectionalLightShadowRendererVR>

com.jme3.shadow.DirectionalLightShadowFilterVR

All Implemented Interfaces:

Savable

Direct Known Subclasses:

InstancedDirectionalShadowFilter

public class DirectionalLightShadowFilterVR
extends AbstractShadowFilterVR<DirectionalLightShadowRendererVR>

This Filter does basically the same as a DirectionalLightShadowRenderer except it renders the post shadow pass as a fullscreen quad pass instead of a geometry pass. It's mostly faster than PssmShadowRenderer as long as you have more than about ten shadow receiving objects. The expense is the drawback that the shadow Receive mode set on spatial is ignored. So basically all and only objects that render depth in the scene receive shadows. See this post for more details http://jmonkeyengine.org/groups/general-2/forum/topic/silly-question-about-shadow-rendering/#post-191599 API is basically the same as the PssmShadowRenderer;

Nested Class Summary

Nested classes/interfaces inherited from class com.jme3.post.Filter

Filter.Pass

Field Summary

Fields inherited from class com.jme3.shadow.AbstractShadowFilterVR

shadowRenderer, viewPort

Fields inherited from class com.jme3.post.Filter

defaultPass, enabled, material, postRenderPasses, processor

Constructor Summary

Constructors

Constructor and Description
DirectionalLightShadowFilterVR(AssetManager assetManager, int shadowMapSize, int nbSplits) Creates a DirectionalLightShadowFilter Shadow Filter More info on the technique at http://http.developer.nvidia.com/GPUGems3/gpugems3_ch10.html
DirectionalLightShadowFilterVR(AssetManager assetManager, int shadowMapSize, int nbSplits, java.lang.String useMatDef) Creates a DirectionalLight shadow filter.

Method Summary

Modifier and Type	Method and Description
float	getLambda() returns the lambda parameter
DirectionalLight	getLight() return the light used to cast shadows
boolean	isEnabledStabilization() Check if stabilization is enabled.
void	read(JmeImporter im) Override this method if you want to load extra properties when the filter is loaded else only basic properties of the filter will be loaded This method should always begin by super.read(im);
void	setEnabledStabilization(boolean stabilize) Enables the stabilization of the shadow's edges.
void	setLambda(float lambda) Adjusts the partition of the shadow extend into shadow maps.
void	setLight(DirectionalLight light) Sets the light to use to cast shadows
void	write(JmeExporter ex) Override this method if you want to save extra properties when the filter is saved else only basic properties of the filter will be saved This method should always begin by super.write(ex);

Methods inherited from class com.jme3.shadow.AbstractShadowFilterVR

getEdgeFilteringMode, getEdgesThickness, getMaterial, getPreShadowForcedRenderState, getShadowCompareMode, getShadowIntensity, getShadowMaterial, getShadowZExtend, getShadowZFadeLength, initFilter, isFlushQueues, isRenderBackFacesShadows, isRequiresDepthTexture, postFrame, postQueue, preFrame, setEdgeFilteringMode, setEdgesThickness, setRenderBackFacesShadows, setShadowCompareMode, setShadowIntensity, setShadowZExtend, setShadowZFadeLength

Methods inherited from class com.jme3.post.Filter

cleanup, cleanUpFilter, getDefaultPassDepthFormat, getDefaultPassTextureFormat, getName, getPostRenderPasses, getRenderedTexture, getRenderFrameBuffer, init, isEnabled, isRequiresBilinear, isRequiresSceneTexture, postFilter, setDepthTexture, setEnabled, setName, setProcessor, setRenderedTexture, setRenderFrameBuffer

Methods inherited from class java.lang.Object

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

Constructor Detail

DirectionalLightShadowFilterVR

public DirectionalLightShadowFilterVR(AssetManager assetManager,
                                      int shadowMapSize,
                                      int nbSplits)

Creates a DirectionalLightShadowFilter Shadow Filter More info on the technique at http://http.developer.nvidia.com/GPUGems3/gpugems3_ch10.html

Parameters:

assetManager - the application asset manager

shadowMapSize - the size of the rendered shadowmaps (512, 1024, 2048, etcetera)

nbSplits - the number of shadow maps rendered (More shadow maps yield better quality, fewer fps.)

DirectionalLightShadowFilterVR

public DirectionalLightShadowFilterVR(AssetManager assetManager,
                                      int shadowMapSize,
                                      int nbSplits,
                                      java.lang.String useMatDef)

Creates a DirectionalLight shadow filter. More info on the technique at http://http.developer.nvidia.com/GPUGems3/gpugems3_ch10.html.

Parameters:

assetManager - the application's asset manager

shadowMapSize - the size of the rendered shadowmaps (512, 1024, 2048, etc...)

nbSplits - the number of shadow maps rendered (More shadow maps yield better quality, fewer fps.)

useMatDef - the material to attach to this filter.

Method Detail

getLight

public DirectionalLight getLight()

return the light used to cast shadows

Returns:

the DirectionalLight

setLight

public void setLight(DirectionalLight light)

Sets the light to use to cast shadows

Parameters:

light - a DirectionalLight

getLambda

public float getLambda()

returns the lambda parameter

Returns:

lambda

See Also:

setLambda(float lambda)

setLambda

public void setLambda(float lambda)

Adjusts the partition of the shadow extend into shadow maps. Lambda is usually between 0 and 1. A low value gives a more linear partition, resulting in consistent shadow quality over the extend, but near shadows could look very jagged. A high value gives a more logarithmic partition, resulting in high quality for near shadows, but quality decreases rapidly with distance. The default value is 0.65 (the theoretical optimum).

Parameters:

lambda - the lambda value.

isEnabledStabilization

public boolean isEnabledStabilization()

Check if stabilization is enabled.

Returns:

true if the stabilization is enabled and false otherwise.

See Also:

setEnabledStabilization(boolean)

setEnabledStabilization

public void setEnabledStabilization(boolean stabilize)

Enables the stabilization of the shadow's edges. (default is true) This prevents shadow edges from flickering when the camera moves. However, it can lead to some loss of shadow quality in particular scenes.

Parameters:

stabilize - true if the stabilization has to be enabled and false otherwise.

See Also:

isEnabledStabilization()

write

public void write(JmeExporter ex)
           throws java.io.IOException

Description copied from class: Filter

Override this method if you want to save extra properties when the filter is saved else only basic properties of the filter will be saved This method should always begin by super.write(ex);

Specified by:

write in interface Savable

Overrides:

write in class AbstractShadowFilterVR<DirectionalLightShadowRendererVR>

Parameters:

ex - the exporter (not null)

Throws:

java.io.IOException - from the exporter

read

public void read(JmeImporter im)
          throws java.io.IOException

Description copied from class: Filter

Override this method if you want to load extra properties when the filter is loaded else only basic properties of the filter will be loaded This method should always begin by super.read(im);

Specified by:

read in interface Savable

Overrides:

read in class AbstractShadowFilterVR<DirectionalLightShadowRendererVR>

Throws:

java.io.IOException