#include <OgreTangentSpaceCalc.h>
Public Types | |
typedef std::pair< size_t, size_t > | VertexSplit |
typedef std::list< IndexRemap > | IndexRemapList |
List of indexes that were remapped (split vertices). | |
typedef std::list< VertexSplit > | VertexSplits |
Public Member Functions | |
TangentSpaceCalc () | |
virtual | ~TangentSpaceCalc () |
void | clear () |
Reset the calculation object. | |
void | setVertexData (VertexData *v_in) |
Set the incoming vertex data (which will be modified). | |
void | addIndexData (IndexData *i_in, RenderOperation::OperationType opType=RenderOperation::OT_TRIANGLE_LIST) |
Add a set of index data that references the vertex data. | |
void | setStoreParityInW (bool enabled) |
Sets whether to store tangent space parity in the W of a 4-component tangent or not. | |
bool | getStoreParityInW () const |
Gets whether to store tangent space parity in the W of a 4-component tangent or not. | |
void | setSplitMirrored (bool split) |
Sets whether or not to split vertices when a mirrored tangent space transition is detected (matrix parity differs). | |
bool | getSplitMirrored () const |
Gets whether or not to split vertices when a mirrored tangent space transition is detected. | |
void | setSplitRotated (bool split) |
Sets whether or not to split vertices when tangent space rotates more than 90 degrees around a vertex. | |
bool | getSplitRotated () const |
Sets whether or not to split vertices when tangent space rotates more than 90 degrees around a vertex. | |
Result | build (VertexElementSemantic targetSemantic=VES_TANGENT, unsigned short sourceTexCoordSet=0, unsigned short index=1) |
Build a tangent space basis from the provided data. | |
Protected Types | |
typedef std::vector< IndexData * > | IndexDataList |
typedef std::vector < RenderOperation::OperationType > | OpTypeList |
typedef std::vector< VertexInfo > | VertexInfoArray |
Protected Member Functions | |
void | extendBuffers (VertexSplits &splits) |
void | insertTangents (Result &res, VertexElementSemantic targetSemantic, unsigned short sourceTexCoordSet, unsigned short index) |
void | populateVertexArray (unsigned short sourceTexCoordSet) |
void | processFaces (Result &result) |
void | calculateFaceTangentSpace (const size_t *vertInd, Vector3 &tsU, Vector3 &tsV, Vector3 &tsN) |
Calculate face tangent space, U and V are weighted by UV area, N is normalised. | |
Real | calculateAngleWeight (size_t v0, size_t v1, size_t v2) |
int | calculateParity (const Vector3 &u, const Vector3 &v, const Vector3 &n) |
void | addFaceTangentSpaceToVertices (size_t indexSet, size_t faceIndex, size_t *localVertInd, const Vector3 &faceTsU, const Vector3 &faceTsV, const Vector3 &faceNorm, Result &result) |
void | normaliseVertices () |
void | remapIndexes (Result &res) |
template<typename T> | |
void | remapIndexes (T *ibuf, size_t indexSet, Result &res) |
Protected Attributes | |
VertexData * | mVData |
IndexDataList | mIDataList |
OpTypeList | mOpTypes |
bool | mSplitMirrored |
bool | mSplitRotated |
bool | mStoreParityInW |
VertexInfoArray | mVertexArray |
Classes | |
struct | IndexRemap |
Information about a remapped index. More... | |
struct | Result |
The result of having built a tangent space basis. More... | |
struct | VertexInfo |
Definition at line 43 of file OgreTangentSpaceCalc.h.
typedef std::pair<size_t, size_t> Ogre::TangentSpaceCalc::VertexSplit |
Definition at line 49 of file OgreTangentSpaceCalc.h.
typedef std::list<IndexRemap> Ogre::TangentSpaceCalc::IndexRemapList |
List of indexes that were remapped (split vertices).
Definition at line 65 of file OgreTangentSpaceCalc.h.
typedef std::list<VertexSplit> Ogre::TangentSpaceCalc::VertexSplits |
Definition at line 67 of file OgreTangentSpaceCalc.h.
typedef std::vector<IndexData*> Ogre::TangentSpaceCalc::IndexDataList [protected] |
Definition at line 180 of file OgreTangentSpaceCalc.h.
typedef std::vector<RenderOperation::OperationType> Ogre::TangentSpaceCalc::OpTypeList [protected] |
Definition at line 181 of file OgreTangentSpaceCalc.h.
typedef std::vector<VertexInfo> Ogre::TangentSpaceCalc::VertexInfoArray [protected] |
Definition at line 204 of file OgreTangentSpaceCalc.h.
Ogre::TangentSpaceCalc::TangentSpaceCalc | ( | ) |
virtual Ogre::TangentSpaceCalc::~TangentSpaceCalc | ( | ) | [virtual] |
void Ogre::TangentSpaceCalc::clear | ( | ) |
Reset the calculation object.
void Ogre::TangentSpaceCalc::setVertexData | ( | VertexData * | v_in | ) |
Set the incoming vertex data (which will be modified).
void Ogre::TangentSpaceCalc::addIndexData | ( | IndexData * | i_in, | |
RenderOperation::OperationType | opType = RenderOperation::OT_TRIANGLE_LIST | |||
) |
Add a set of index data that references the vertex data.
This might be modified if there are vertex splits.
void Ogre::TangentSpaceCalc::setStoreParityInW | ( | bool | enabled | ) |
Sets whether to store tangent space parity in the W of a 4-component tangent or not.
enable | true to enable 4-component tangents (default false). If you enable this, you will probably also want to enable mirror splitting (see setSplitMirrored), and your shader must understand how to deal with the parity. |
Definition at line 105 of file OgreTangentSpaceCalc.h.
bool Ogre::TangentSpaceCalc::getStoreParityInW | ( | ) | const |
Gets whether to store tangent space parity in the W of a 4-component tangent or not.
Definition at line 108 of file OgreTangentSpaceCalc.h.
void Ogre::TangentSpaceCalc::setSplitMirrored | ( | bool | split | ) |
Sets whether or not to split vertices when a mirrored tangent space transition is detected (matrix parity differs).
Definition at line 124 of file OgreTangentSpaceCalc.h.
bool Ogre::TangentSpaceCalc::getSplitMirrored | ( | ) | const |
Gets whether or not to split vertices when a mirrored tangent space transition is detected.
Definition at line 129 of file OgreTangentSpaceCalc.h.
void Ogre::TangentSpaceCalc::setSplitRotated | ( | bool | split | ) |
Sets whether or not to split vertices when tangent space rotates more than 90 degrees around a vertex.
Definition at line 145 of file OgreTangentSpaceCalc.h.
bool Ogre::TangentSpaceCalc::getSplitRotated | ( | ) | const |
Sets whether or not to split vertices when tangent space rotates more than 90 degrees around a vertex.
Definition at line 149 of file OgreTangentSpaceCalc.h.
Result Ogre::TangentSpaceCalc::build | ( | VertexElementSemantic | targetSemantic = VES_TANGENT , |
|
unsigned short | sourceTexCoordSet = 0 , |
|||
unsigned short | index = 1 | |||
) |
Build a tangent space basis from the provided data.
targetSemantic | The semantic to store the tangents in. Defaults to the explicit tangent binding, but note that this is only usable on more modern hardware (Shader Model 2), so if you need portability with older cards you should change this to a texture coordinate binding instead. | |
sourceTexCoordSet | The texture coordinate index which should be used as the source of 2D texture coordinates, with which to calculate the tangents. | |
index | The element index, ie the texture coordinate set which should be used to store the 3D coordinates representing a tangent vector per vertex, if targetSemantic is VES_TEXTURE_COORDINATES. If this already exists, it will be overwritten. |
void Ogre::TangentSpaceCalc::extendBuffers | ( | VertexSplits & | splits | ) | [protected] |
void Ogre::TangentSpaceCalc::insertTangents | ( | Result & | res, | |
VertexElementSemantic | targetSemantic, | |||
unsigned short | sourceTexCoordSet, | |||
unsigned short | index | |||
) | [protected] |
void Ogre::TangentSpaceCalc::populateVertexArray | ( | unsigned short | sourceTexCoordSet | ) | [protected] |
void Ogre::TangentSpaceCalc::processFaces | ( | Result & | result | ) | [protected] |
void Ogre::TangentSpaceCalc::calculateFaceTangentSpace | ( | const size_t * | vertInd, | |
Vector3 & | tsU, | |||
Vector3 & | tsV, | |||
Vector3 & | tsN | |||
) | [protected] |
Calculate face tangent space, U and V are weighted by UV area, N is normalised.
Real Ogre::TangentSpaceCalc::calculateAngleWeight | ( | size_t | v0, | |
size_t | v1, | |||
size_t | v2 | |||
) | [protected] |
int Ogre::TangentSpaceCalc::calculateParity | ( | const Vector3 & | u, | |
const Vector3 & | v, | |||
const Vector3 & | n | |||
) | [protected] |
void Ogre::TangentSpaceCalc::addFaceTangentSpaceToVertices | ( | size_t | indexSet, | |
size_t | faceIndex, | |||
size_t * | localVertInd, | |||
const Vector3 & | faceTsU, | |||
const Vector3 & | faceTsV, | |||
const Vector3 & | faceNorm, | |||
Result & | result | |||
) | [protected] |
void Ogre::TangentSpaceCalc::normaliseVertices | ( | ) | [protected] |
void Ogre::TangentSpaceCalc::remapIndexes | ( | Result & | res | ) | [protected] |
void Ogre::TangentSpaceCalc::remapIndexes | ( | T * | ibuf, | |
size_t | indexSet, | |||
Result & | res | |||
) | [protected] |
Definition at line 223 of file OgreTangentSpaceCalc.h.
References Ogre::TangentSpaceCalc::IndexRemap::faceIndex, Ogre::TangentSpaceCalc::Result::indexesRemapped, Ogre::TangentSpaceCalc::IndexRemap::indexSet, and Ogre::TangentSpaceCalc::IndexRemap::splitVertex.
VertexData* Ogre::TangentSpaceCalc::mVData [protected] |
Definition at line 179 of file OgreTangentSpaceCalc.h.
IndexDataList Ogre::TangentSpaceCalc::mIDataList [protected] |
Definition at line 182 of file OgreTangentSpaceCalc.h.
OpTypeList Ogre::TangentSpaceCalc::mOpTypes [protected] |
Definition at line 183 of file OgreTangentSpaceCalc.h.
bool Ogre::TangentSpaceCalc::mSplitMirrored [protected] |
Definition at line 184 of file OgreTangentSpaceCalc.h.
bool Ogre::TangentSpaceCalc::mSplitRotated [protected] |
Definition at line 185 of file OgreTangentSpaceCalc.h.
bool Ogre::TangentSpaceCalc::mStoreParityInW [protected] |
Definition at line 186 of file OgreTangentSpaceCalc.h.
VertexInfoArray Ogre::TangentSpaceCalc::mVertexArray [protected] |
Definition at line 205 of file OgreTangentSpaceCalc.h.
Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Sep 27 22:07:49 2009