This class defines the interface that must be implemented by shadow casters.
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#include <OgreShadowCaster.h>
This class defines the interface that must be implemented by shadow casters.
Definition at line 109 of file OgreShadowCaster.h.
| virtual Ogre::ShadowCaster::~ShadowCaster |
( |
| ) |
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inlinevirtual |
Utility method for extruding a bounding box.
- Parameters
-
| box | Original bounding box, will be updated in-place |
| lightPos | 4D light position in object space, when w=0.0f this represents a directional light |
| extrudeDist | The distance to extrude |
Utility method for extruding vertices based on a light.
- Parameters
-
| vertexBuffer | The vertex buffer containing ONLY xyz position values, which must be originalVertexCount * 2 * 3 floats long. |
| originalVertexCount | The count of the original number of vertices, i.e. the number in the mesh, not counting the doubling which has already been done (by VertexData::prepareForShadowVolume) to provide the extruded area of the buffer. |
| lightPos | 4D light position in object space, when w=0.0f this represents a directional light |
| extrudeDist | The distance to extrude |
Generates the indexes required to render a shadow volume into the index buffer which is passed in, and updates shadow renderables to use it.
- Parameters
-
| edgeData | The edge information to use |
| indexBuffer | The buffer into which to write data into; current contents are assumed to be discardable. |
| light | The light, mainly for type info as silhouette calculations should already have been done in updateEdgeListLightFacing |
| shadowRenderables | A list of shadow renderables which has already been constructed but will need populating with details of the index ranges to be used. |
| flags | Additional controller flags, see ShadowRenderableFlags |
| virtual bool Ogre::ShadowCaster::getCastShadows |
( |
void |
| ) |
const |
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pure virtual |
| virtual const AxisAlignedBox& Ogre::ShadowCaster::getDarkCapBounds |
( |
const Light & |
light, |
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Real |
dirLightExtrusionDist |
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) |
| const |
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pure virtual |
Gets the world space bounding box of the dark cap, as extruded using the light provided.
Implemented in Ogre::MovableObject.
| virtual EdgeData* Ogre::ShadowCaster::getEdgeList |
( |
void |
| ) |
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pure virtual |
| Real Ogre::ShadowCaster::getExtrusionDistance |
( |
const Vector3 & |
objectPos, |
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const Light * |
light |
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) |
| const |
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protected |
Helper method for calculating extrusion distance.
| virtual const AxisAlignedBox& Ogre::ShadowCaster::getLightCapBounds |
( |
void |
| ) |
const |
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pure virtual |
| virtual Real Ogre::ShadowCaster::getPointExtrusionDistance |
( |
const Light * |
l | ) |
const |
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pure virtual |
Gets an iterator over the renderables required to render the shadow volume.
- Parameters
-
| shadowTechnique | The technique being used to generate the shadow |
| light | The light to generate the shadow from |
| indexBuffer | The index buffer to build the renderables into, the current contents are assumed to be disposable. |
| extrudeVertices | If true, this means this class should extrude the vertices of the back of the volume in software. If false, it will not be done (a vertex program is assumed). |
| extrusionDistance | The distance to extrude the shadow volume |
| flags | Technique-specific flags, see ShadowRenderableFlags |
Implemented in Ogre::Entity, Ogre::MovableObject, Ogre::StaticGeometry::Region, and Ogre::ManualObject.
| virtual const AxisAlignedBox& Ogre::ShadowCaster::getWorldBoundingBox |
( |
bool |
derive = false | ) |
const |
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pure virtual |
| virtual bool Ogre::ShadowCaster::hasEdgeList |
( |
void |
| ) |
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pure virtual |
| virtual void Ogre::ShadowCaster::updateEdgeListLightFacing |
( |
EdgeData * |
edgeData, |
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const Vector4 & |
lightPos |
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) |
| |
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protectedvirtual |
Tells the caster to perform the tasks necessary to update the edge data's light listing.
Can be overridden if the subclass needs to do additional things.
- Parameters
-
| edgeData | The edge information to update |
| lightPos | 4D vector representing the light, a directional light has w=0.0 |
The documentation for this class was generated from the following file:
Inheritance diagram for Ogre::ShadowCaster:
1.8.7 
