# Ogre::TerrainQuadTreeNode Class Reference
[Terrain]

A node in a quad tree used to store a patch of terrain. More...

`#include <OgreTerrainQuadTreeNode.h>`

Inheritance diagram for Ogre::TerrainQuadTreeNode:
[legend]

List of all members.

## Classes

struct | LodLevel
class | Movable
| MovableObject implementation to provide the hook to the scene. More...
class | Rend
| Hook to the render queue. More...
struct | VertexDataRecord

## Public Types

typedef vector< LodLevel * >::type | LodLevelList

## Public Member Functions

| TerrainQuadTreeNode (Terrain *terrain, TerrainQuadTreeNode *parent, uint16 xoff, uint16 yoff, uint16 size, uint16 lod, uint16 depth, uint16 quadrant)
| Constructor.
virtual | ~TerrainQuadTreeNode ()
uint16 | getXOffset () const
| Get the horizontal offset into the main terrain data of this node.
uint16 | getYOffset () const
| Get the vertical offset into the main terrain data of this node.
bool | isLeaf () const
| Is this a leaf node (no children).
uint16 | getBaseLod () const
| Get the base LOD level this node starts at (the highest LOD it handles).
uint16 | getLodCount () const
| Get the number of LOD levels this node can represent itself (only > 1 for leaf nodes).
TerrainQuadTreeNode * | getChild (unsigned short child) const
| Get child node.
TerrainQuadTreeNode * | getParent () const
| Get parent node.
Terrain * | getTerrain () const
| Get ultimate parent terrain.
void | prepare ()
| Prepare node and children (perform CPU tasks, may be background thread).
void | prepare (StreamSerialiser &stream)
| Prepare node from a stream.
void | load ()
| Load node and children (perform GPU tasks, will be render thread).
void | unload ()
| Unload node and children (perform GPU tasks, will be render thread).
void | unprepare ()
| Unprepare node and children (perform CPU tasks, may be background thread).
void | save (StreamSerialiser &stream)
| Save node to a stream.
const LodLevel * | getLodLevel (uint16 lod)
| Get the LodLevel information for a given lod.
void | preDeltaCalculation (const Rect &rect)
| Notify the node (and children) that deltas are going to be calculated for a given range.
void | notifyDelta (uint16 x, uint16 y, uint16 lod, Real delta)
| Notify the node (and children) of a height delta value.
void | postDeltaCalculation (const Rect &rect)
| Notify the node (and children) that deltas have finished being calculated.
void | finaliseDeltaValues (const Rect &rect)
| Promote the delta values calculated to the runtime ones (this must be called in the main thread).
void | assignVertexData (uint16 treeDepthStart, uint16 treeDepthEnd, uint16 resolution, uint sz)
| Assign vertex data to the tree, from a depth and at a given resolution.
void | useAncestorVertexData (TerrainQuadTreeNode *owner, uint16 treeDepthEnd, uint16 resolution)
| Tell a node that it should use an anscestor's vertex data.
void | updateVertexData (bool positions, bool deltas, const Rect &rect, bool cpuData)
| Tell the node to update its vertex data for a given region.
void | mergeIntoBounds (long x, long y, const Vector3 &pos)
| Merge a point (relative to terrain node) into the local bounds, and that of children if applicable.
void | resetBounds (const Rect &rect)
| Reset the bounds of this node and all its children for the region given.
bool | rectIntersectsNode (const Rect &rect)
| Returns true if the given rectangle overlaps the terrain area that this node references.
bool | rectContainsNode (const Rect &rect)
| Returns true if the given rectangle completely contains the terrain area that this node references.
bool | pointIntersectsNode (long x, long y)
| Returns true if the given point is in the terrain area that this node references.
const AxisAlignedBox & | getAABB () const
| Get the AABB (local coords) of this node.
Real | getBoundingRadius () const
| Get the bounding radius of this node.
const Vector3 & | getLocalCentre () const
| Get the local centre of this node, relative to parent terrain centre.
Real | getMinHeight () const
| Get the minimum height of the node.
Real | getMaxHeight () const
| Get the maximum height of the node.
bool | calculateCurrentLod (const Camera *cam, Real cFactor)
| Calculate appropriate LOD for this node and children.
int | getCurrentLod () const
| Get the current LOD index (only valid after calculateCurrentLod).
bool | isRenderedAtCurrentLod () const
| Returns whether this node is rendering itself at the current LOD level.
bool | isSelfOrChildRenderedAtCurrentLod () const
| Returns whether this node or its children are being rendered at the current LOD level.
void | setCurrentLod (int lod)
| Manually set the current LOD, intended for internal use only.
float | getLodTransition () const
| Get the transition state between the current LOD and the next lower one (only valid after calculateCurrentLod).
void | setLodTransition (float t)
| Manually set the current LOD transition state, intended for internal use only.
void * | operator new (size_t sz, const char *file, int line, const char *func)
| operator new, with debug line info
void * | operator new (size_t sz)
void * | operator new (size_t sz, void *ptr)
| placement operator new
void * | operator new[] (size_t sz, const char *file, int line, const char *func)
| array operator new, with debug line info
void * | operator new[] (size_t sz)
void | operator delete (void *ptr)
void | operator delete (void *ptr, void *)
void | operator delete (void *ptr, const char *, int, const char *)
void | operator delete[] (void *ptr)
void | operator delete[] (void *ptr, const char *, int, const char *)

## Static Public Attributes

static unsigned short | POSITION_BUFFER
| Buffer binding used for holding positions.
static unsigned short | DELTA_BUFFER
| Buffer binding used for holding delta values.

## Protected Member Functions

void | updateRenderQueue (RenderQueue *queue)
void | visitRenderables (Renderable::Visitor *visitor, bool debugRenderables=false)
const MaterialPtr & | getMaterial (void) const
Technique * | getTechnique (void) const
void | getRenderOperation (RenderOperation &op)
void | getWorldTransforms (Matrix4 *xform) const
Real | getSquaredViewDepth (const Camera *cam) const
const LightList & | getLights (void) const
bool | getCastsShadows (void) const
const VertexDataRecord * | getVertexDataRecord () const
void | createCpuVertexData ()
void | updateVertexBuffer (HardwareVertexBufferSharedPtr &posbuf, HardwareVertexBufferSharedPtr &deltabuf, const Rect &rect)
void | destroyCpuVertexData ()
void | createGpuVertexData ()
void | destroyGpuVertexData ()
void | updateGpuVertexData ()
void | createGpuIndexData ()
void | destroyGpuIndexData ()
void | populateIndexData (uint16 batchSize, IndexData *destData)
uint16 | calcSkirtVertexIndex (uint16 mainIndex, bool isCol)

## Protected Attributes

Terrain * | mTerrain
TerrainQuadTreeNode * | mParent
TerrainQuadTreeNode * | mChildren [4]
LodLevelList | mLodLevels
uint16 | mOffsetX
uint16 | mOffsetY
uint16 | mBoundaryX
uint16 | mBoundaryY
uint16 | mSize
| the number of vertices at the original terrain resolution this node encompasses
uint16 | mBaseLod
uint16 | mDepth
uint16 | mQuadrant
Vector3 | mLocalCentre
AxisAlignedBox | mAABB
Real | mBoundingRadius
int | mCurrentLod
unsigned short | mMaterialLodIndex
float | mLodTransition
TerrainQuadTreeNode * | mChildWithMaxHeightDelta
| The child with the largest height delta.
bool | mSelfOrChildRendered
TerrainQuadTreeNode * | mNodeWithVertexData
VertexDataRecord * | mVertexDataRecord
Movable * | mMovable
SceneNode * | mLocalNode
Rend * | mRend

## Friends

class | Movable
class | Rend

## Detailed Description

A node in a quad tree used to store a patch of terrain.

Remarks:
  Algorithm overview:

  Our goal is to perform traditional chunked LOD with geomorphing. But, instead of just dividing the terrain into tiles, we will divide them into a hierarchy of tiles, a quadtree, where any level of the quadtree can be a rendered tile (to the exclusion of its children). The idea is to collect together children into a larger batch with their siblings as LOD decreases, to improve performance.

  The minBatchSize and maxBatchSize parameters on Terrain a key to defining this behaviour. Both values are expressed in vertices down one axis. maxBatchSize determines the number of tiles on one side of the terrain, which is numTiles = (terrainSize-1) / (maxBatchSize-1). This in turn determines the depth of the quad tree, which is sqrt(numTiles). The minBatchSize determines the 'floor' of how low the number of vertices can go in a tile before it has to be grouped together with its siblings to drop any lower. We also do not group a tile with its siblings unless all of them are at this minimum batch size, rather than trying to group them when they all end up on the same 'middle' LOD; this is for several reasons; firstly, tiles hitting the same 'middle' LOD is less likely and more transient if they have different levels of 'roughness', and secondly since we're sharing a vertex / index pool between all tiles, only grouping at the min level means that the number of combinations of buffer sizes for any one tile is greatly simplified, making it easier to pool data. To be more specific, any tile / quadtree node can only have log2(maxBatchSize-1) - log2(minBatchSize-1) + 1 LOD levels (and if you set them to the same value, LOD can only change by going up/down the quadtree). The numbers of vertices / indices in each of these levels is constant for the same (relative) LOD index no matter where you are in the tree, therefore buffers can potentially be reused more easily.

Definition at line 85 of file OgreTerrainQuadTreeNode.h.

## Member Typedef Documentation

typedef vector<LodLevel*>::type Ogre::TerrainQuadTreeNode::LodLevelList

Definition at line 149 of file OgreTerrainQuadTreeNode.h.

## Constructor & Destructor Documentation

Ogre::TerrainQuadTreeNode::TerrainQuadTreeNode | ( | Terrain * | terrain,
|  | TerrainQuadTreeNode * | parent,
|  | uint16 | xoff,
|  | uint16 | yoff,
|  | uint16 | size,
|  | uint16 | lod,
|  | uint16 | depth,
|  | uint16 | quadrant |
| ) |  |  |

Constructor.

Parameters:

  | terrain | The ultimate parent terrain
  | parent | Optional parent node (in which case xoff, yoff are 0 and size must be entire terrain)
  | xoff,off | Offsets from the start of the terrain data in 2D
  | size | The size of the node in vertices at the highest LOD
  | lod | The base LOD level
  | depth | The depth that this node is at in the tree (or convenience)
  | quadrant | The index of the quadrant (0, 1, 2, 3)

virtual Ogre::TerrainQuadTreeNode::~TerrainQuadTreeNode | ( |  | ) | `[virtual]`

## Member Function Documentation

void Ogre::TerrainQuadTreeNode::assignVertexData | ( | uint16 | treeDepthStart,
|  | uint16 | treeDepthEnd,
|  | uint16 | resolution,
|  | uint | sz |
| ) |  |  |

Assign vertex data to the tree, from a depth and at a given resolution.

Parameters:

  | treeDepthStart | The first depth of tree that should use this data, owns the data
  | treeDepthEnd | The end of the depth that should use this data (exclusive)
  | resolution | The resolution of the data to use (compared to full terrain)
  | sz | The size of the data along one edge

uint16 Ogre::TerrainQuadTreeNode::calcSkirtVertexIndex | ( | uint16 | mainIndex,
|  | bool | isCol |
| ) |  |  | `[protected]`

bool Ogre::TerrainQuadTreeNode::calculateCurrentLod | ( | const Camera * | cam,
|  | Real | cFactor |
| ) |  |  |

Calculate appropriate LOD for this node and children.

Parameters:

  | cam | The camera to be used (this should already be the LOD camera)
  | cFactor | The cFactor which incorporates the viewport size, max pixel error and lod bias

Returns:
  true if this node or any of its children were selected for rendering

void Ogre::TerrainQuadTreeNode::createCpuVertexData | ( |  | ) | `[protected]`

void Ogre::TerrainQuadTreeNode::createGpuIndexData | ( |  | ) | `[protected]`

void Ogre::TerrainQuadTreeNode::createGpuVertexData | ( |  | ) | `[protected]`

void Ogre::TerrainQuadTreeNode::destroyCpuVertexData | ( |  | ) | `[protected]`

void Ogre::TerrainQuadTreeNode::destroyGpuIndexData | ( |  | ) | `[protected]`

void Ogre::TerrainQuadTreeNode::destroyGpuVertexData | ( |  | ) | `[protected]`

void Ogre::TerrainQuadTreeNode::finaliseDeltaValues | ( | const Rect & | rect | ) |

Promote the delta values calculated to the runtime ones (this must be called in the main thread).

const AxisAlignedBox& Ogre::TerrainQuadTreeNode::getAABB | ( |  | ) | const

Get the AABB (local coords) of this node.

uint16 Ogre::TerrainQuadTreeNode::getBaseLod | ( |  | ) | const

Get the base LOD level this node starts at (the highest LOD it handles).

Definition at line 108 of file OgreTerrainQuadTreeNode.h.

Real Ogre::TerrainQuadTreeNode::getBoundingRadius | ( |  | ) | const

Get the bounding radius of this node.

bool Ogre::TerrainQuadTreeNode::getCastsShadows | ( | void |  | ) | const`[protected]`

TerrainQuadTreeNode* Ogre::TerrainQuadTreeNode::getChild | ( | unsigned short | child | ) | const

Get child node.

int Ogre::TerrainQuadTreeNode::getCurrentLod | ( |  | ) | const

Get the current LOD index (only valid after calculateCurrentLod).

Definition at line 243 of file OgreTerrainQuadTreeNode.h.

const LightList& Ogre::TerrainQuadTreeNode::getLights | ( | void |  | ) | const`[protected]`

const Vector3& Ogre::TerrainQuadTreeNode::getLocalCentre | ( |  | ) | const

Get the local centre of this node, relative to parent terrain centre.

Definition at line 229 of file OgreTerrainQuadTreeNode.h.

uint16 Ogre::TerrainQuadTreeNode::getLodCount | ( |  | ) | const

Get the number of LOD levels this node can represent itself (only > 1 for leaf nodes).

const LodLevel* Ogre::TerrainQuadTreeNode::getLodLevel | ( | uint16 | lod | ) |

Get the LodLevel information for a given lod.

Parameters:

  | lod | The lod level index relative to this classes own list; if you want to use a global lod level, subtract getBaseLod() first. Higher LOD levels are lower detail.

float Ogre::TerrainQuadTreeNode::getLodTransition | ( |  | ) | const

Get the transition state between the current LOD and the next lower one (only valid after calculateCurrentLod).

Definition at line 251 of file OgreTerrainQuadTreeNode.h.

const MaterialPtr& Ogre::TerrainQuadTreeNode::getMaterial | ( | void |  | ) | const`[protected]`

Real Ogre::TerrainQuadTreeNode::getMaxHeight | ( |  | ) | const

Get the maximum height of the node.

Real Ogre::TerrainQuadTreeNode::getMinHeight | ( |  | ) | const

Get the minimum height of the node.

TerrainQuadTreeNode* Ogre::TerrainQuadTreeNode::getParent | ( |  | ) | const

Get parent node.

void Ogre::TerrainQuadTreeNode::getRenderOperation | ( | RenderOperation & | op | ) | `[protected]`

Real Ogre::TerrainQuadTreeNode::getSquaredViewDepth | ( | const Camera * | cam | ) | const`[protected]`

Technique* Ogre::TerrainQuadTreeNode::getTechnique | ( | void |  | ) | const`[protected]`

Terrain* Ogre::TerrainQuadTreeNode::getTerrain | ( |  | ) | const

Get ultimate parent terrain.

const VertexDataRecord* Ogre::TerrainQuadTreeNode::getVertexDataRecord | ( |  | ) | const`[protected]`

void Ogre::TerrainQuadTreeNode::getWorldTransforms | ( | Matrix4 * | xform | ) | const`[protected]`

uint16 Ogre::TerrainQuadTreeNode::getXOffset | ( |  | ) | const

Get the horizontal offset into the main terrain data of this node.

Definition at line 102 of file OgreTerrainQuadTreeNode.h.

uint16 Ogre::TerrainQuadTreeNode::getYOffset | ( |  | ) | const

Get the vertical offset into the main terrain data of this node.

Definition at line 104 of file OgreTerrainQuadTreeNode.h.

bool Ogre::TerrainQuadTreeNode::isLeaf | ( |  | ) | const

Is this a leaf node (no children).

bool Ogre::TerrainQuadTreeNode::isRenderedAtCurrentLod | ( |  | ) | const

Returns whether this node is rendering itself at the current LOD level.

bool Ogre::TerrainQuadTreeNode::isSelfOrChildRenderedAtCurrentLod | ( |  | ) | const

Returns whether this node or its children are being rendered at the current LOD level.

void Ogre::TerrainQuadTreeNode::load | ( |  | ) |

Load node and children (perform GPU tasks, will be render thread).

void Ogre::TerrainQuadTreeNode::mergeIntoBounds | ( | long | x,
|  | long | y,
|  | const Vector3 & | pos |
| ) |  |  |

Merge a point (relative to terrain node) into the local bounds, and that of children if applicable.

Parameters:

  | x,y | The point on the terrain to which this position corresponds (affects which nodes update their bounds)
  | pos | The position relative to the terrain centre

void Ogre::TerrainQuadTreeNode::notifyDelta | ( | uint16 | x,
|  | uint16 | y,
|  | uint16 | lod,
|  | Real | delta |
| ) |  |  |

Notify the node (and children) of a height delta value.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr | ) | `[inherited]`

Definition at line 95 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr,
|  | void * |  |
| ) |  |  | `[inherited]`

Definition at line 101 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr,
|  | const char * | ,
|  | int | ,
|  | const char * |  |
| ) |  |  | `[inherited]`

Definition at line 107 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] | ( | void * | ptr | ) | `[inherited]`

Definition at line 112 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] | ( | void * | ptr,
|  | const char * | ,
|  | int | ,
|  | const char * |  |
| ) |  |  | `[inherited]`

Definition at line 118 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz,
|  | const char * | file,
|  | int | line,
|  | const char * | func |
| ) |  |  | `[inherited]`

operator new, with debug line info

Definition at line 67 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz,
|  | void * | ptr |
| ) |  |  | `[inherited]`

placement operator new

Definition at line 78 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz | ) | `[inherited]`

Definition at line 72 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[] | ( | size_t | sz,
|  | const char * | file,
|  | int | line,
|  | const char * | func |
| ) |  |  | `[inherited]`

array operator new, with debug line info

Definition at line 85 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[] | ( | size_t | sz | ) | `[inherited]`

Definition at line 90 of file OgreMemoryAllocatedObject.h.

bool Ogre::TerrainQuadTreeNode::pointIntersectsNode | ( | long | x,
|  | long | y |
| ) |  |  |

Returns true if the given point is in the terrain area that this node references.

Parameters:

  | x,y | The point in top-level terrain coords

void Ogre::TerrainQuadTreeNode::populateIndexData | ( | uint16 | batchSize,
|  | IndexData * | destData |
| ) |  |  | `[protected]`

void Ogre::TerrainQuadTreeNode::postDeltaCalculation | ( | const Rect & | rect | ) |

Notify the node (and children) that deltas have finished being calculated.

void Ogre::TerrainQuadTreeNode::preDeltaCalculation | ( | const Rect & | rect | ) |

Notify the node (and children) that deltas are going to be calculated for a given range.

Remarks:
  Based on this call, we can know whether or not to reset the max height.

void Ogre::TerrainQuadTreeNode::prepare | ( |  | ) |

Prepare node and children (perform CPU tasks, may be background thread).

void Ogre::TerrainQuadTreeNode::prepare | ( | StreamSerialiser & | stream | ) |

Prepare node from a stream.

bool Ogre::TerrainQuadTreeNode::rectContainsNode | ( | const Rect & | rect | ) |

Returns true if the given rectangle completely contains the terrain area that this node references.

Parameters:

  | rect | The region in top-level terrain coords

bool Ogre::TerrainQuadTreeNode::rectIntersectsNode | ( | const Rect & | rect | ) |

Returns true if the given rectangle overlaps the terrain area that this node references.

Parameters:

  | rect | The region in top-level terrain coords

void Ogre::TerrainQuadTreeNode::resetBounds | ( | const Rect & | rect | ) |

Reset the bounds of this node and all its children for the region given.

Parameters:

  | rect | The region for which bounds should be reset, in top-level terrain coords

void Ogre::TerrainQuadTreeNode::save | ( | StreamSerialiser & | stream | ) |

Save node to a stream.

void Ogre::TerrainQuadTreeNode::setCurrentLod | ( | int | lod | ) |

Manually set the current LOD, intended for internal use only.

void Ogre::TerrainQuadTreeNode::setLodTransition | ( | float | t | ) |

Manually set the current LOD transition state, intended for internal use only.

void Ogre::TerrainQuadTreeNode::unload | ( |  | ) |

Unload node and children (perform GPU tasks, will be render thread).

void Ogre::TerrainQuadTreeNode::unprepare | ( |  | ) |

Unprepare node and children (perform CPU tasks, may be background thread).

void Ogre::TerrainQuadTreeNode::updateGpuVertexData | ( |  | ) | `[protected]`

void Ogre::TerrainQuadTreeNode::updateRenderQueue | ( | RenderQueue * | queue | ) | `[protected]`

void Ogre::TerrainQuadTreeNode::updateVertexBuffer | ( | HardwareVertexBufferSharedPtr & | posbuf,
|  | HardwareVertexBufferSharedPtr & | deltabuf,
|  | const Rect & | rect |
| ) |  |  | `[protected]`

void Ogre::TerrainQuadTreeNode::updateVertexData | ( | bool | positions,
|  | bool | deltas,
|  | const Rect & | rect,
|  | bool | cpuData |
| ) |  |  |

Tell the node to update its vertex data for a given region.

void Ogre::TerrainQuadTreeNode::useAncestorVertexData | ( | TerrainQuadTreeNode * | owner,
|  | uint16 | treeDepthEnd,
|  | uint16 | resolution |
| ) |  |  |

Tell a node that it should use an anscestor's vertex data.

Parameters:

  | treeDepthEnd | The end of the depth that should use this data (exclusive)
  | resolution | The resolution of the data to use

void Ogre::TerrainQuadTreeNode::visitRenderables | ( | Renderable::Visitor * | visitor,
|  | bool | debugRenderables = `false` |
| ) |  |  | `[protected]`

## Friends And Related Function Documentation

friend class Movable `[friend]`

Definition at line 349 of file OgreTerrainQuadTreeNode.h.

friend class Rend `[friend]`

Definition at line 371 of file OgreTerrainQuadTreeNode.h.

## Member Data Documentation

unsigned short Ogre::TerrainQuadTreeNode::DELTA_BUFFER `[static]`

Buffer binding used for holding delta values.

Definition at line 258 of file OgreTerrainQuadTreeNode.h.

AxisAlignedBox Ogre::TerrainQuadTreeNode::mAABB `[protected]`

Definition at line 275 of file OgreTerrainQuadTreeNode.h.

uint16 Ogre::TerrainQuadTreeNode::mBaseLod `[protected]`

Definition at line 271 of file OgreTerrainQuadTreeNode.h.

uint16 Ogre::TerrainQuadTreeNode::mBoundaryX `[protected]`

Definition at line 268 of file OgreTerrainQuadTreeNode.h.

uint16 Ogre::TerrainQuadTreeNode::mBoundaryY `[protected]`

Definition at line 268 of file OgreTerrainQuadTreeNode.h.

Real Ogre::TerrainQuadTreeNode::mBoundingRadius `[protected]`

Definition at line 276 of file OgreTerrainQuadTreeNode.h.

TerrainQuadTreeNode* Ogre::TerrainQuadTreeNode::mChildren[4]`[protected]`

Definition at line 264 of file OgreTerrainQuadTreeNode.h.

TerrainQuadTreeNode* Ogre::TerrainQuadTreeNode::mChildWithMaxHeightDelta `[protected]`

The child with the largest height delta.

Definition at line 281 of file OgreTerrainQuadTreeNode.h.

int Ogre::TerrainQuadTreeNode::mCurrentLod `[protected]`

Definition at line 277 of file OgreTerrainQuadTreeNode.h.

uint16 Ogre::TerrainQuadTreeNode::mDepth `[protected]`

Definition at line 272 of file OgreTerrainQuadTreeNode.h.

Vector3 Ogre::TerrainQuadTreeNode::mLocalCentre `[protected]`

Definition at line 274 of file OgreTerrainQuadTreeNode.h.

SceneNode* Ogre::TerrainQuadTreeNode::mLocalNode `[protected]`

Definition at line 350 of file OgreTerrainQuadTreeNode.h.

LodLevelList Ogre::TerrainQuadTreeNode::mLodLevels `[protected]`

Definition at line 265 of file OgreTerrainQuadTreeNode.h.

float Ogre::TerrainQuadTreeNode::mLodTransition `[protected]`

Definition at line 279 of file OgreTerrainQuadTreeNode.h.

unsigned short Ogre::TerrainQuadTreeNode::mMaterialLodIndex `[protected]`

Definition at line 278 of file OgreTerrainQuadTreeNode.h.

Movable* Ogre::TerrainQuadTreeNode::mMovable `[protected]`

Definition at line 348 of file OgreTerrainQuadTreeNode.h.

TerrainQuadTreeNode* Ogre::TerrainQuadTreeNode::mNodeWithVertexData `[protected]`

Definition at line 306 of file OgreTerrainQuadTreeNode.h.

uint16 Ogre::TerrainQuadTreeNode::mOffsetX `[protected]`

Definition at line 267 of file OgreTerrainQuadTreeNode.h.

uint16 Ogre::TerrainQuadTreeNode::mOffsetY `[protected]`

Definition at line 267 of file OgreTerrainQuadTreeNode.h.

TerrainQuadTreeNode* Ogre::TerrainQuadTreeNode::mParent `[protected]`

Definition at line 263 of file OgreTerrainQuadTreeNode.h.

uint16 Ogre::TerrainQuadTreeNode::mQuadrant `[protected]`

Definition at line 273 of file OgreTerrainQuadTreeNode.h.

Rend* Ogre::TerrainQuadTreeNode::mRend `[protected]`

Definition at line 370 of file OgreTerrainQuadTreeNode.h.

bool Ogre::TerrainQuadTreeNode::mSelfOrChildRendered `[protected]`

Definition at line 282 of file OgreTerrainQuadTreeNode.h.

uint16 Ogre::TerrainQuadTreeNode::mSize `[protected]`

the number of vertices at the original terrain resolution this node encompasses

Definition at line 270 of file OgreTerrainQuadTreeNode.h.

Terrain* Ogre::TerrainQuadTreeNode::mTerrain `[protected]`

Definition at line 262 of file OgreTerrainQuadTreeNode.h.

VertexDataRecord* Ogre::TerrainQuadTreeNode::mVertexDataRecord `[protected]`

Definition at line 307 of file OgreTerrainQuadTreeNode.h.

unsigned short Ogre::TerrainQuadTreeNode::POSITION_BUFFER `[static]`

Buffer binding used for holding positions.

Definition at line 256 of file OgreTerrainQuadTreeNode.h.

The documentation for this class was generated from the following file:

- OgreTerrainQuadTreeNode.h

Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Wed Nov 3 2010 19:25:05