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ACG::MeshCompiler Class Reference

Classes

struct  AdjacencyList
 
struct  Subset
 
struct  VertexElementInput
 
struct  VertexSplitter
 
struct  WeldList
 
struct  WeldListEntry
 

Public Member Functions

 MeshCompiler (const VertexDeclaration &_decl)
 
void dbgdump (const char *_filename) const
 dump mesh info to text file
 
void dbgdumpObj (const char *_filename) const
 dump mesh in wavefront obj format
 
void dbgdumpInputBin (const char *_filename, bool _seperateFiles=false) const
 dump input mesh to binary file format
 
void dbgdumpInputObj (const char *_filename) const
 dump input mesh to wavefront obj format
 
void dbgdumpAdjList (const char *_filename) const
 dump adjacency list to text file
 
bool dbgVerify (const char *_filename) const
 test correctness of input <-> output id mappings, unshared per face vertex.. logs errors in file
 
std::string vertexToString (const void *v) const
 interpret vertex data according declaration and write to string
 
size_t getMemoryUsage (bool _printConsole=true) const
 
std::string checkInputData () const
 check for errors in input data
 
Vertex Data Input
void setVertices (int _num, const void *_data, int _stride=0, bool _internalCopy=false, GLuint _fmt=0, int _elementSize=-1)
 
void setNormals (int _num, const void *_data, int _stride=0, bool _internalCopy=false, GLuint _fmt=0, int _elementSize=-1)
 
void setTexCoords (int _num, const void *_data, int _stride=0, bool _internalCopy=false, GLuint _fmt=0, int _elementSize=-1)
 
void setAttribVec (int _attrIdx, int _num, const void *_data, int _stride=0, bool _internalCopy=false, GLuint _fmt=0, int _elementSize=-1)
 
void setAttrib (int _attrIdx, int _v, const void *_data)
 
int getNumInputAttributes (int _attrIdx) const
 
Flexible Face Data Input
void setFaceInput (MeshCompilerFaceInput *_faceInput)
 
Default Face Data Input
void setNumFaces (const int _numFaces, const int _numIndices)
 Set number of faces and indices if known by user. More...
 
void setIndexBufferInterleaved (int _numTris, int _indexSize, const void *_indices)
 Set index buffer for a triangle mesh. More...
 
void setFaceVerts (int _i, int _v0, int _v1, int _v2)
 Set vertex ids per triangle. More...
 
void setFaceVerts (int _i, int _faceSize, int *_v)
 Set vertex ids per face. More...
 
void setFaceNormals (int _i, int _v0, int _v1, int _v2)
 Set normal ids per triangle. More...
 
void setFaceNormals (int _i, int _faceSize, int *_v)
 Set normal ids per face. More...
 
void setFaceTexCoords (int _i, int _v0, int _v1, int _v2)
 Set texcoord ids per triangle. More...
 
void setFaceTexCoords (int _i, int _faceSize, int *_v)
 Set texcoord ids per face. More...
 
void setFaceAttrib (int _i, int _v0, int _v1, int _v2, int _attrID)
 Set attribute ids per triangle. More...
 
void setFaceAttrib (int _i, int _faceSize, int *_v, int _attrID)
 Set attribute ids per face. More...
 
Face Grouping and Subsets
void setFaceGroup (int _i, short _groupID)
 Specify face groups. More...
 
int findGroupSubset (int _groupID)
 get subset ID of a group More...
 
int getFaceGroup (int _faceID) const
 Get Face Group of the given face. More...
 
int getTriGroup (int _triID) const
 Get Group Id of the triangle. More...
 
int getNumSubsets () const
 Get the number of subsets. More...
 
const SubsetgetSubset (int _i) const
 get a specific subset More...
 
Mesh Compilation
void build (bool _weldVertices=false, bool _optimizeVCache=true, bool _needPerFaceAttribute=false, bool _keepIsolatedVertices=false)
 Build vertex + index buffer. More...
 
int getNumVertices () const
 
void setProvokingVertex (int _v)
 
int getProvokingVertex () const
 
void getVertexBuffer (void *_dst, const int _offset=0, const int _range=-1)
 Get vertex buffer ready for rendering. More...
 
int * getIndexBuffer () const
 
void getIndexAdjBuffer (void *_dst, const int _borderIndex=-1)
 Get index buffer with adjacency information ready for rendering. More...
 
void getIndexAdjBuffer_BruteForce (void *_dst, const int _borderIndex=-1)
 Slow brute-force version of getIndexAdjBuffer. More...
 
int getNumTriangles () const
 
int getNumFaces () const
 
int getFaceSize (const int _i) const
 Get size of input face. More...
 
const VertexDeclarationgetVertexDeclaration () const
 
void getVertex (int _id, void *_out) const
 
int getIndex (int _i) const
 
Input/Output ID mapping
int mapToOriginalVertexID (const int _i, int &_faceID, int &_cornerID) const
 
int mapToOriginalFaceID (const int _triID) const
 
const int * mapToOriginalFaceIDPtr () const
 
int mapToDrawVertexID (const int _faceID, const int _cornerID) const
 
int mapToDrawTriID (const int _faceID, const int _k=0, int *_numTrisOut=0) const
 
Triangulation properties
bool isTriangleMesh () const
 
bool isFaceEdge (const int _triID, const int _edge) const
 

Private Member Functions

void computeAdjacency ()
 
void splitVertices ()
 
void getInputFaceVertex (const int _face, const int _corner, int *_out) const
 
void getInputFaceVertex_Welded (const int _face, const int _corner, int *_out) const
 
void getInputFaceVertexData (const int _face, const int _corner, void *_out) const
 
int getInputIndex (const int &_face, const int &_corner, const int &_attrId) const
 
int getAdjVertexFaceCount (int _vertexID) const
 
int getAdjVertexFace (int _vertexID, int _k) const
 
int getInputIndexSplit (const int _face, const int _corner) const
 
void setInputIndexSplit (const int _face, const int _corner, const int _val)
 
int mapTriToInputFace (const int _tri) const
 
int getInputIndexOffset (const int _face, const int _corner, const bool _rotation=true) const
 
int getInputFaceOffset (const int _face) const
 
void prepareData ()
 build() preparation
 
void findIsolatedVertices ()
 
void forceUnsharedFaceVertex ()
 
void weldVertices ()
 
void fixWeldMap ()
 
void triangulate ()
 
void sortFacesByGroup ()
 
void optimize ()
 
void createVertexMap (bool _keepIsolatedVerts)
 
void createFaceMap ()
 
void getIndexAdjBuffer_MT (void *_dst, const int _borderIndex=-1)
 Multi-threaded version of getIndexAdjBuffer. More...
 

Private Attributes

VertexElementInput input_ [16]
 
int inputIDPos_
 
int inputIDNorm_
 
int inputIDTexC_
 
int numAttributes_
 
VertexDeclaration decl_
 
int numFaces_
 
int numIndices_
 
std::vector< int > faceStart_
 
std::vector< unsigned char > faceSize_
 
std::vector< int > faceData_
 
size_t maxFaceSize_
 
bool constantFaceSize_
 
std::vector< short > faceGroupIDs_
 
int curFaceInputPos_
 
MeshCompilerFaceInputfaceInput_
 
bool deleteFaceInputeData_
 
std::vector< int > faceBufSplit_
 
std::vector< unsigned char > faceRotCount_
 
std::vector< int > faceSortMap_
 
int provokingVertex_
 
bool provokingVertexSetByUser_
 
int numTris_
 
std::vector< int > triIndexBuffer_
 
std::vector< int > isolatedVertices_
 
int numSubsets_
 
std::vector< Subsetsubsets_
 
std::map< int, int > subsetIDMap_
 
AdjacencyList adjacencyVert_
 
MeshCompilerVertexComparevertexCompare_
 
std::vector< int > vertexWeldMapFace_
 
std::vector< unsigned char > vertexWeldMapCorner_
 
VertexSplittersplitter_
 
std::vector< int > triToSortFaceMap_
 maps from triangle ID to sorted face ID
 
std::vector< int > triOptMap_
 maps from optimized tri ID to unoptimized tri ID
 
std::vector< int > vertexMapFace_
 vertex index in vbo -> input (face id, corner id) pair , also inverse of faceBufSplit_
 
std::vector< unsigned char > vertexMapCorner_
 
std::vector< int > faceToTriMap_
 input face index -> output tri index
 
std::vector< int > faceToTriMapOffset_
 
std::vector< int > triToFaceMap_
 output tri index -> input face index
 
int numDrawVerts_
 

vertices in vbo


 
int numIsolatedVerts_
 

isolated vertices


 
int * indices_
 index buffer
 

Static Private Attributes

static MeshCompilerVertexCompare defaultVertexCompare
 

Detailed Description

Definition at line 235 of file MeshCompiler.hh.

Member Function Documentation

void ACG::MeshCompiler::build ( bool  _weldVertices = false,
bool  _optimizeVCache = true,
bool  _needPerFaceAttribute = false,
bool  _keepIsolatedVertices = false 
)

Build vertex + index buffer.

Parameters
_weldVerticesCompare vertices and attempt to eliminate duplicates. High computation cost
_optimizeVCacheReorder faces for optimized vcache usage. High computation cost
_needPerFaceAttributeUser wants to set per-face attributes in draw vertex buffer. Per-face data can be stored in the provoking vertex of each face. Low computation cost
_keepIsolatedVerticesIsolated vertices should not be discarded in the output vertex buffer

Definition at line 1406 of file MeshCompiler.cc.

int ACG::MeshCompiler::findGroupSubset ( int  _groupID)

get subset ID of a group

Parameters
_groupIDId of the group
Returns
Subset Id

Definition at line 1646 of file MeshCompiler.cc.

int ACG::MeshCompiler::getFaceGroup ( int  _faceID) const

Get Face Group of the given face.

Parameters
_faceIDId of the face
Returns
Group Id

Definition at line 1638 of file MeshCompiler.cc.

int ACG::MeshCompiler::getFaceSize ( const int  _i) const
inline

Get size of input face.

Parameters
_iIndex
Returns
Size

Definition at line 593 of file MeshCompiler.hh.

int ACG::MeshCompiler::getIndex ( int  _i) const

Get index in final draw index buffer.

Definition at line 2650 of file MeshCompiler.cc.

void ACG::MeshCompiler::getIndexAdjBuffer ( void *  _dst,
const int  _borderIndex = -1 
)

Get index buffer with adjacency information ready for rendering.

This index buffer can be used to render in GL_TRIANGLES_ADJACENCY mode. For each triangle, it contains the 3 neighboring triangles with a shared edge in addition to the triangle vertices. Each triangle stores 6 indices: 0 - first vertex of triangle 1 - opposite vertex to first edge of adjacent triangle 2 - second vertex of triangle 3 - opposite vertex to second edge of adjacent triangle 4 - third vertex of triangle 5 - opposite vertex to third edge of adjacent triangle

5___4___3 \ /\ / \/__\/ 0\ /2 \/ 1

Parameters
_dst[out] Pointer to memory address where the 32bit index buffer should be copied to. Must have size of at least 6 * numTris * 4 bytes
_borderIndexindex to use for border edges (missing adjacent triangles)

Definition at line 2870 of file MeshCompiler.cc.

void ACG::MeshCompiler::getIndexAdjBuffer_BruteForce ( void *  _dst,
const int  _borderIndex = -1 
)

Slow brute-force version of getIndexAdjBuffer.

Computes index buffer with adjacency information, but uses a much simpler algorithm. Runtime = O(n^2), but this can be used to verify the result of getIndexAdjBuffer. Results from brute-force and optimized algorithm must be equal for meshes where no edge is shared by more than two triangles.

Parameters
_dst[out] Pointer to memory address where the 32bit index buffer should be copied to. Must have size of at least 6 * numTris * 4 bytes
_borderIndexindex to use for border edges (missing adjacent triangles)

Definition at line 3191 of file MeshCompiler.cc.

void ACG::MeshCompiler::getIndexAdjBuffer_MT ( void *  _dst,
const int  _borderIndex = -1 
)
private

Multi-threaded version of getIndexAdjBuffer.

Uses a multi-threaded method based on the vertex-triangle adjacency list to compute the index buffer with adjacency.

Parameters
_dst[out] Pointer to memory address where the 32bit index buffer should be copied to. Must have size of at least 6 * numTris * 4 bytes
_borderIndexindex to use for border edges (missing adjacent triangles)

Definition at line 3055 of file MeshCompiler.cc.

int* ACG::MeshCompiler::getIndexBuffer ( ) const
inline

Get index buffer ready for rendering.

Definition at line 540 of file MeshCompiler.hh.

void ACG::MeshCompiler::getInputFaceVertex ( const int  _face,
const int  _corner,
int *  _out 
) const
private

i: face index j: corner index _out: output vertex (index for each attribute)

Definition at line 827 of file MeshCompiler.cc.

void ACG::MeshCompiler::getInputFaceVertex_Welded ( const int  _face,
const int  _corner,
int *  _out 
) const
private

i: face index j: corner index _out: output vertex (index for each attribute) post welding operation

Definition at line 833 of file MeshCompiler.cc.

void ACG::MeshCompiler::getInputFaceVertexData ( const int  _face,
const int  _corner,
void *  _out 
) const
private

i: face index j: corner index _out: output vertex address (vertex data)

Definition at line 851 of file MeshCompiler.cc.

size_t ACG::MeshCompiler::getMemoryUsage ( bool  _printConsole = true) const

return memory consumption in bytes

Parameters
_printConsoleprint detailed memory costs to command console

Definition at line 3340 of file MeshCompiler.cc.

int ACG::MeshCompiler::getNumFaces ( ) const

Get number of input faces.

Definition at line 3621 of file MeshCompiler.cc.

int ACG::MeshCompiler::getNumInputAttributes ( int  _attrIdx) const

Get number of attributes in an input buffer

Parameters
_attrIdxAttribute id from VertexDeclaration

Definition at line 1613 of file MeshCompiler.cc.

int ACG::MeshCompiler::getNumSubsets ( ) const
inline

Get the number of subsets.

Returns
Number of subsets

Definition at line 478 of file MeshCompiler.hh.

int ACG::MeshCompiler::getNumTriangles ( ) const
inline

Get number of triangles in final buffer.

Definition at line 582 of file MeshCompiler.hh.

int ACG::MeshCompiler::getNumVertices ( ) const
inline

Get number of vertices in final buffer.

Definition at line 507 of file MeshCompiler.hh.

int ACG::MeshCompiler::getProvokingVertex ( ) const
inline

See glProvokingVertex()

Returns
provoking vertex id

Definition at line 525 of file MeshCompiler.hh.

const MeshCompiler::Subset * ACG::MeshCompiler::getSubset ( int  _i) const

get a specific subset

Parameters
_iId of the subset
Returns
The subset

Definition at line 1651 of file MeshCompiler.cc.

int ACG::MeshCompiler::getTriGroup ( int  _triID) const

Get Group Id of the triangle.

Parameters
_triIDId of the triangle
Returns
Group of the triangle
void ACG::MeshCompiler::getVertex ( int  _id,
void *  _out 
) const

Get vertex in final draw vertex buffer.

Definition at line 2621 of file MeshCompiler.cc.

void ACG::MeshCompiler::getVertexBuffer ( void *  _dst,
const int  _offset = 0,
const int  _range = -1 
)

Get vertex buffer ready for rendering.

Query final vertex buffer data. Support vertex buffer batch uploads.

Parameters
_dst[out] Pointer to memory address where the vertex buffer should be copied to
_offsetBegin of vertex buffer batch
_rangeSize of vertex buffer batch. Copies rest of buffer if _range < 0.

Definition at line 2812 of file MeshCompiler.cc.

const VertexDeclaration* ACG::MeshCompiler::getVertexDeclaration ( ) const
inline

Get Vertex declaration.

Definition at line 600 of file MeshCompiler.hh.

bool ACG::MeshCompiler::isFaceEdge ( const int  _triID,
const int  _edge 
) const

Test if a triangle edge is a face edge from the input buffer.

When a convex n-poly is subdivided into (n-2) triangles, new edges are created which do not exist in the input mesh. This function identifies if an edge was already existant in the input mesh or added during triangulation.

Parameters
_triIDtriangle ID in draw buffer
_edgeedge of triangle, edge ordering: v0-v1, v1-v2, v2-v0
Returns
true if the edge is an edge from an input face, false otherwise

Definition at line 3647 of file MeshCompiler.cc.

bool ACG::MeshCompiler::isTriangleMesh ( ) const

Test if the input mesh consists of triangles only.

Definition at line 3642 of file MeshCompiler.cc.

int ACG::MeshCompiler::mapToDrawTriID ( const int  _faceID,
const int  _k = 0,
int *  _numTrisOut = 0 
) const

Mapping from input Face id -> draw vertex id

Parameters
_faceIDFace ID in input data
_ktriangle no. associated to face, offset 0
_numTrisOut[out] Number of triangles associated to face (if input face was n-poly)
Returns
Draw Triangle ID in output vertex buffer

Definition at line 3327 of file MeshCompiler.cc.

int ACG::MeshCompiler::mapToDrawVertexID ( const int  _faceID,
const int  _cornerID 
) const

Mapping from input vertex id -> draw vertex id

Parameters
_faceIDFace ID in input data
_cornerIDCorner of face
Returns
Draw Vertex ID in output vertex buffer

Definition at line 3315 of file MeshCompiler.cc.

int ACG::MeshCompiler::mapToOriginalFaceID ( const int  _triID) const

Mapping from draw tri id -> input face id

Parameters
_triIDTriangle ID in draw index buffer
Returns
Input Face ID

Definition at line 3260 of file MeshCompiler.cc.

const int * ACG::MeshCompiler::mapToOriginalFaceIDPtr ( ) const

Get pointer to the lookup table mapping from tri id -> input face id

Returns
ptr to address of lookup table with size getNumTriangles()

Definition at line 3277 of file MeshCompiler.cc.

int ACG::MeshCompiler::mapToOriginalVertexID ( const int  _i,
int &  _faceID,
int &  _cornerID 
) const

Mapping from draw vertex id -> input vertex id

Parameters
_iVertex ID in draw buffer
_faceID[out] Face ID in face input buffer
_cornerID[out] Corner of face corresponding to vertex.
Returns
Position ID in input buffer

Definition at line 3286 of file MeshCompiler.cc.

void ACG::MeshCompiler::setAttrib ( int  _attrIdx,
int  _v,
const void *  _data 
)

Set single custom input attributes.

An internal buffer for the requested attribute must be allocated before using this function. See setAttribVec()

Parameters
_attrIdxAttribute id from VertexDeclaration
_vBuffer id of the single attribute
_dataattribute data

Definition at line 1598 of file MeshCompiler.cc.

void ACG::MeshCompiler::setAttribVec ( int  _attrIdx,
int  _num,
const void *  _data,
int  _stride = 0,
bool  _internalCopy = false,
GLuint  _fmt = 0,
int  _elementSize = -1 
)

Set custom input attribute.

Alternatively allocates an internal buffer only, such that data can be provided via setAttrib().

Parameters
_attrIdxAttribute id from VertexDeclaration
_numNumber of attributes
_dataInput data buffer, may be null to only allocate an internal buffer
_strideOffset difference in bytes to the next attribute in _data. Default value 0 indicates no data alignment/memory packing.
_internalCopyCreate an internal buffer and make a copy _data
_fmtdata format of one element (must be set if input data does not match vertex declaration)
_elementSizenumber of elements per attribute (i.e. 3 for vec3 .., -1 if unknown)

Definition at line 272 of file MeshCompiler.cc.

void ACG::MeshCompiler::setFaceAttrib ( int  _i,
int  _v0,
int  _v1,
int  _v2,
int  _attrID 
)

Set attribute ids per triangle.

Parameters
_iFace id
_v01st element id
_v12nd element id
_v23rd element id
_attrIDWhich attribute: index of VertexDeclaration element array

Definition at line 1005 of file MeshCompiler.cc.

void ACG::MeshCompiler::setFaceAttrib ( int  _i,
int  _faceSize,
int *  _v,
int  _attrID 
)

Set attribute ids per face.

Parameters
_iFace id
_faceSizeSize of face, ie. number of vertices of face
_vElement ids
_attrIDWhich attribute: index of VertexDeclaration element array

Definition at line 991 of file MeshCompiler.cc.

void ACG::MeshCompiler::setFaceGroup ( int  _i,
short  _groupID 
)

Specify face groups.

Faces with the same group ID will be chunked together in the sorting process. This feature may be used for material/texture subsets.

Parameters
_iFace ID
_groupIDCustom group ID

Definition at line 2804 of file MeshCompiler.cc.

void ACG::MeshCompiler::setFaceInput ( MeshCompilerFaceInput _faceInput)

Set Face data input

Making use of the MeshCompilerFaceInput interface completly overrides the default input behavior. Any subsequent call to default input data functions such as setNumFaces(), setFaceVerts() etc. will be ignored

Parameters
_faceInputuser defined face input (no internal copy made, do not delete while using MeshCompiler)

Definition at line 3587 of file MeshCompiler.cc.

void ACG::MeshCompiler::setFaceNormals ( int  _i,
int  _v0,
int  _v1,
int  _v2 
)

Set normal ids per triangle.

Parameters
_iFace ID
_v01st normal id
_v12nd normal id
_v23rd normal id

Definition at line 2603 of file MeshCompiler.cc.

void ACG::MeshCompiler::setFaceNormals ( int  _i,
int  _faceSize,
int *  _v 
)

Set normal ids per face.

Parameters
_iFace id
_faceSizeSize of face, ie. number of vertices of face
_vNormal ids

Definition at line 2598 of file MeshCompiler.cc.

void ACG::MeshCompiler::setFaceTexCoords ( int  _i,
int  _v0,
int  _v1,
int  _v2 
)

Set texcoord ids per triangle.

Parameters
_iFace ID
_v01st texcoord id
_v12nd texcoord id
_v23rd texcoord id

Definition at line 2615 of file MeshCompiler.cc.

void ACG::MeshCompiler::setFaceTexCoords ( int  _i,
int  _faceSize,
int *  _v 
)

Set texcoord ids per face.

Parameters
_iFace id
_faceSizeSize of face, ie. number of vertices of face
_vTexcoord ids

Definition at line 2610 of file MeshCompiler.cc.

void ACG::MeshCompiler::setFaceVerts ( int  _i,
int  _v0,
int  _v1,
int  _v2 
)

Set vertex ids per triangle.

Parameters
_iFace ID
_v01st vertex id
_v12nd vertex id
_v23rd vertex id

Definition at line 2592 of file MeshCompiler.cc.

void ACG::MeshCompiler::setFaceVerts ( int  _i,
int  _faceSize,
int *  _v 
)

Set vertex ids per face.

Parameters
_iFace id
_faceSizeSize of face, ie. number of vertices of face
_vVertex ids

Definition at line 2587 of file MeshCompiler.cc.

void ACG::MeshCompiler::setIndexBufferInterleaved ( int  _numTris,
int  _indexSize,
const void *  _indices 
)

Set index buffer for a triangle mesh.

This should only be used if the input vertex buffer is interleaved already.

Parameters
_numTrisNumber of triangles.
_indexSizeSize in bytes of one index.
_indicesPointer to a buffer containing the index data.

Definition at line 3592 of file MeshCompiler.cc.

void ACG::MeshCompiler::setNormals ( int  _num,
const void *  _data,
int  _stride = 0,
bool  _internalCopy = false,
GLuint  _fmt = 0,
int  _elementSize = -1 
)

set input normals

Parameters
_numNumber of normals
_dataPointer to normals data
_strideDifference in bytes between two normals positions in _data. Default value 0 indicates a tight float3 position array without any other data or memory alignment.
_internalCopyMemory optimization flag: select true if the provided data address is only temporarily valid. Otherwise an internal copy must be made.
_fmtdata format of one element (must be set if input data does not match vertex declaration)
_elementSizenumber of elements per attribute (i.e. 3 for vec3 .., -1 if unknown)

Definition at line 261 of file MeshCompiler.cc.

void ACG::MeshCompiler::setNumFaces ( const int  _numFaces,
const int  _numIndices 
)

Set number of faces and indices if known by user.

User may give a rough estimate of face/index count. A more accurate estimation improves efficiency: too low numbers result in performance hit, too high numbers in memory consumption

Parameters
_numFacesNumber of faces. Value 0 accepted at cost of performance
_numIndicesNumber of indices, i.e. 3 * numFaces for triangle meshes. Value 0 accepted at cost of performance

Definition at line 976 of file MeshCompiler.cc.

void ACG::MeshCompiler::setProvokingVertex ( int  _v)

See glProvokingVertex()

Specifiy the vertex to be used as the source of data for flat shading. The default value is 2, meaning that the last vertex of each triangle will be used. setProvokingVertex() must be called prior to build(), if a different provoking vertex is desired. Additionally build() has to set its _needPerFaceAttribute parameter to true to enable provoking vertices. The provoking vertex of a face is a vertex, which is not shared with any other face in the mesh.

Parameters
_vtriangle vertex where the provoking vertex should be stored [0, 1, 2]

Definition at line 3626 of file MeshCompiler.cc.

void ACG::MeshCompiler::setTexCoords ( int  _num,
const void *  _data,
int  _stride = 0,
bool  _internalCopy = false,
GLuint  _fmt = 0,
int  _elementSize = -1 
)

set input texture coords

Parameters
_numNumber of texture coords
_dataPointer to texture coord data
_strideDifference in bytes between two texture coordinate positions in _data. Default value 0 indicates a tight float3 position array without any other data or memory alignment.
_internalCopyMemory optimization flag: select true if the provided data address is only temporarily valid. Otherwise an internal copy must be made.
_fmtdata format of one element (must be set if input data does not match vertex declaration)
_elementSizenumber of elements per attribute (i.e. 3 for vec3 .., -1 if unknown)

Definition at line 266 of file MeshCompiler.cc.

void ACG::MeshCompiler::setVertices ( int  _num,
const void *  _data,
int  _stride = 0,
bool  _internalCopy = false,
GLuint  _fmt = 0,
int  _elementSize = -1 
)

set input vertex positions

Parameters
_numNumber of vertex positions
_dataPointer to vertex data
_strideDifference in bytes between two vertex positions in _data. Default value 0 indicates a tight float3 position array without any other data or memory alignment.
_internalCopyMemory optimization flag: select true if the provided data address is only temporarily valid. Otherwise an internal copy must be made.
_fmtdata format of one element (must be set if input data does not match vertex declaration)
_elementSizenumber of elements per attribute (i.e. 3 for vec3 .., -1 if unknown)

Definition at line 256 of file MeshCompiler.cc.


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