AdvancedLightManager Class Reference


getLightBinManager()

Will return the lightBinManager for this light manager.



Syntax

getLightBinManager();

Returns
  • AdvancedLightBinManager *: The lightBinManager member variable in AdvancedLightManager.

Examples
lightmgr->getLightBinManager()

isCompatible()

Checks to make sure that the graphics card is compatible with the current pixel shader version that is needed. Currently at least 3.0 is needed.



Syntax

isCompatible();

Returns

No return value.


Examples
// Make sure its valid... else fail!
if ( !lm->isCompatible() )
    return false;

activate( SceneGraph *)

In addition to calling its base classes active(SceneGraph*), it will activate the Shadow Manager and create the AdvancedLightBinManager. It will also setup the Render Prepass Manager and register the feature as an AdvancedLightingFeature.



Syntax

activate( SceneGraph *sceneManager);
  • SceneGraph*: The SceneGraph to activate lighting for.

Returns
  • SceneGraph *: The SceneGraph that will be used to create lighting features.

Examples
// From the engine function "resetLightManager"
 LIGHTMGR->activate( LIGHTMGR->getSceneManager()); 

deactivate()

Will remove all the objects from the AdvancedLightBinManager and the PrePassRenderBin, then set them to NULL. It will deactivate the Shadow Manager, unregister all the advanced lighting features and then finally send a trigger to let everyone know the LightManager has been deactivated.



Syntax

deactivate()

Returns

No return value.


Examples
if (mLightManager)
   mLightManager->deactivate();  

registerGlobalLight( LightInfo *, SimObject * )

In addition to calling LightManager::registerGlobalLight, it will add the light to the AdvancedLightBinManager member variable if the AdvancedLightBinManager is created and the light type is a LightInfo::Point or LightInfo::Spot.



Syntax

registerGlobalLight(LightInfo *light, SimObject *obj )
  • type: The light to be registered to mRegisteredLights.
  • light: Not used.

Returns

No return value.


Examples
// From inside of Item::registerLights
lightManager->registerGlobalLight( mLight, this );

unregisterAllLights()

In addition to calling LightManager::unregisterAllLights, it will clear the AdvancedLightBinManager if it has been created.



Syntax

unregisterAllLights()

Returns

No return value.


Examples
// Unregister all the lights in the light manager.
LIGHTMGR->unregisterAllLights();

setLightInfo( ProcessedMaterial *, const Material *, const SceneGraphData &, const SceneState *, U32, GFXShaderConstBuffer * )

Will check to make sure that the SceneGraphData is not PrePassBin, if it is then it will return out immediately. If it is not, then it will update the constants for the GFXShaderConstBuffer passed in.



Syntax

setLightInfo(ProcessedMaterial *pmat, Material *mat, const SceneGraphData &sgData, SceneState *state, U32 pass, GFXShaderConstBuffer *shaderConsts )
  • pmat: Not used.
  • mat: Not used.
  • sgData: Will be used to ensure rendering is not being done from the PrePassBin and also to update light constants by a call to _update4LightConsts(...).
  • state: While setting information to "shaderConsts" it will be used to obtain the camera's transform.
  • pass: Not used.
  • shaderConsts: Will be used to obtain the LightingShaderConstants and to the call to _update4LightConsts(...). It will also have its "set" function called to set the shader constant for "ViewToLightProj".

Returns

No return value.


Examples
// From inside of ProcessedShaderMaterial::setSceneInfo
LIGHTMGR->setLightInfo( this, mMaterial, sgData, state, pass, shaderConsts );

setTextureStage( const SceneGraphData &sgData, const U32 currTexFlag, const U32 textureSlot, GFXShaderConstBuffer *shaderConsts, ShaderConstHandles *handles )

Will assign a Shadowmap if it exists. It will grab the ShadowMap via the LightingShaderContants obtained via the shaderConsts passed in.



Syntax

setTextureStage(const SceneGraphData &sgData, const U32 currTexFlag, const U32 textureSlot, GFXShaderConstBuffer *shaderConsts, ShaderConstHandles *handles )
  • sgData: Used to obtain ShadowMapParams.
  • currTexFlag: Depending on the currTexFlag the texture will be set differently to the GFXDevice.
  • textureSlot: Not Used.
  • shaderConsts: Used to obtain the LightingShaderConstants via getLightingShaderConstants(...).
  • handles: Not used.

Returns

No return value.


Examples
// From inside of ProcessedCustomMaterial::setTextureStages
lm->setTextureStage(sgData, currTexFlag, i, shaderConsts, handles )

getSphereMesh( U32 &, GFXPrimitiveBuffer *& )

Will return a vertex buffer handled filled out by a SphereMesh (mSphereGeometry), along with set the variables passed in. If the SphereMesh (mSphereGeometry) is not created by the time this function is called, it will create the sphere mesh (mSphereGeometry) in addition to returning it.



Syntax

getSphereMesh(U32 outNumPrimitives, GFXPrimitiveBuffer *&outPrimitives )
  • outNumPrimitives: Will be set to the number of polygons for the SphereMesh.
  • outPrimitives: Will always be set to NULL.

Returns
  • GFXVertexBufferHandle<AdvancedLightManager::LightVertex>: Used for the vertex buffer, typically for a LightBinEntry.

Examples
// From inside AdvancedLightBinManager::addLight
AdvancedLightBinEntry::LightBinEntry lEntry.vertBuffer = mLightManager->
    getSphereMesh( lEntry.numPrims, lEntry.primBuffer );

getConeMesh( U32 &, GFXPrimitiveBuffer *& )

Will return a vertex buffer handled filled out by information for a cone, along with set the variables passed in. If the cone geomtery (mConeGeometry) is not created by the time this function is called, it will create the cone geometry (mConeGeometry) in addition to returning it.



Syntax

getConeMesh(U32 outNumPrimitives, GFXPrimitiveBuffer *&outPrimitives )
  • outNumPrimitives: Will be set to the number of polygons for the SphereMesh.
  • outPrimitives: Will always be set to NULL.

Returns
  • GFXVertexBufferHandle<AdvancedLightManager::LightVertex>: Used for the vertex buffer, typically for a LightBinEntry.

Examples
// From inside AdvancedLightBinManager::addLight
AdvancedLightBinEntry::LightBinEntry lEntry.vertBuffer = mLightManager->
    getConeMesh( lEntry.numPrims, lEntry.primBuffer );

findShadowMapForObject( SimObject * )

Will take in a SimObject*, then cast it to a ISceneLight*. If the converted variable is valid (meaning you passed in a valid ISceneLight), then it would get the shadow map available for the light.



Syntax

findShadowMapForObject(SimObject *object)
  • object: The SimObject to be converted to a ISceneLight* to find the ShadowMap.

Returns
  • LightShadowMap *: The found shadow map from the ISceneLight casted "object" variable.

Examples
LightShadowMap *lightShadowMap = lm->findShadowMapForObject( object );