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OGRE
14.2
Object-Oriented Graphics Rendering Engine
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Level of detail strategy based on distance from camera. More...
#include <OgreDistanceLodStrategy.h>
Public Member Functions | |
DistanceLodStrategyBase (const String &name) | |
Default constructor. More... | |
Real | getBaseValue () const override |
Get the value of the first (highest) level of detail. More... | |
ushort | getIndex (Real value, const Material::LodValueList &materialLodValueList) const override |
Get the index of the LOD usage which applies to a given value. More... | |
ushort | getIndex (Real value, const Mesh::MeshLodUsageList &meshLodUsageList) const override |
Get the index of the LOD usage which applies to a given value. More... | |
virtual Real | getSquaredDepth (const MovableObject *movableObject, const Ogre::Camera *camera) const =0 |
Get the squared distance between the camera and the LOD object. More... | |
bool | isReferenceViewEnabled () const |
Determine if use of the reference view is enabled. More... | |
bool | isSorted (const Mesh::LodValueList &values) const override |
Determine if the LOD values are sorted from greatest detail to least detail. More... | |
void | setReferenceView (Real viewportWidth, Real viewportHeight, Radian fovY) |
Sets the reference view upon which the distances were based. More... | |
void | setReferenceViewEnabled (bool value) |
Enables to disables use of the reference view. More... | |
void | sort (Mesh::MeshLodUsageList &meshLodUsageList) const override |
Sort mesh LOD usage list from greatest to least detail. More... | |
Real | transformBias (Real factor) const override |
Transform LOD bias so it only needs to be multiplied by the LOD value. More... | |
Real | transformUserValue (Real userValue) const override |
Transform user supplied value to internal value. More... | |
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LodStrategy (const String &name) | |
Constructor accepting name. More... | |
virtual | ~LodStrategy () |
Virtual destructor. More... | |
void | assertSorted (const Mesh::LodValueList &values) const |
Assert that the LOD values are sorted from greatest detail to least detail. More... | |
const String & | getName () const |
Get the name of this strategy. More... | |
Real | getValue (const MovableObject *movableObject, const Camera *camera) const |
Compute the LOD value for a given movable object relative to a given camera. More... | |
Level of detail strategy based on distance from camera.
This is an abstract base class for DistanceLodBoxStrategy and DistanceLodSphereStrategy.
The purpose of the reference view is to ensure a consistent experience for all users. Monitors of different resolutions and aspect ratios will each have different results for the distance queries.
Ogre::DistanceLodStrategyBase::DistanceLodStrategyBase | ( | const String & | name | ) |
Default constructor.
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overridevirtual |
Get the value of the first (highest) level of detail.
Implements Ogre::LodStrategy.
Transform LOD bias so it only needs to be multiplied by the LOD value.
Implements Ogre::LodStrategy.
Transform user supplied value to internal value.
By default, performs no transformation.
Do not throw exceptions for invalid values here, as the LOD strategy may be changed such that the values become valid.
Reimplemented from Ogre::LodStrategy.
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overridevirtual |
Get the index of the LOD usage which applies to a given value.
Implements Ogre::LodStrategy.
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overridevirtual |
Get the index of the LOD usage which applies to a given value.
Implements Ogre::LodStrategy.
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overridevirtual |
Sort mesh LOD usage list from greatest to least detail.
Implements Ogre::LodStrategy.
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overridevirtual |
Determine if the LOD values are sorted from greatest detail to least detail.
Implements Ogre::LodStrategy.
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pure virtual |
Get the squared distance between the camera and the LOD object.
Implemented in Ogre::DistanceLodBoxStrategy, and Ogre::DistanceLodSphereStrategy.
void Ogre::DistanceLodStrategyBase::setReferenceView | ( | Real | viewportWidth, |
Real | viewportHeight, | ||
Radian | fovY | ||
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Sets the reference view upon which the distances were based.
void Ogre::DistanceLodStrategyBase::setReferenceViewEnabled | ( | bool | value | ) |
Enables to disables use of the reference view.
bool Ogre::DistanceLodStrategyBase::isReferenceViewEnabled | ( | ) | const |
Determine if use of the reference view is enabled.