Developer Documentation
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Properties Friends Macros Modules Pages
ACG::DrawMeshT< Mesh > Class Template Reference

Mesh Drawing Class. More...

#include <ACG/GL/DrawMesh.hh>

Inheritance diagram for ACG::DrawMeshT< Mesh >:
ACG::DrawMeshBase

Classes

struct  Subset
 
struct  VertexProperty
 

Public Types

enum  PropertySource { PROPERTY_SOURCE_VERTEX = 0, PROPERTY_SOURCE_HALFEDGE, PROPERTY_SOURCE_FACE }
 

Public Member Functions

 DrawMeshT (Mesh &_mesh)
 
void disableColors ()
 
void usePerVertexColors ()
 
void usePerFaceColors ()
 
void setFlatShading ()
 
void setSmoothShading ()
 
void usePerVertexTexcoords ()
 
void usePerHalfedgeTexcoords ()
 
void usePerVertexNormals ()
 
void usePerHalfedgeNormals ()
 
void bindBuffers ()
 eventually rebuilds buffers used for rendering and binds index and vertex buffer
 
GLuint getVBO ()
 get opengl vertex buffer id
 
GLuint getIBO ()
 get opengl index buffer id
 
VertexDeclarationgetVertexDeclaration ()
 get vertex declaration of the current vbo layout
 
unsigned int mapVertexToVBOIndex (unsigned int _v)
 map from vertex index of the original mesh point buffer to the corresponding vertex index inside the VBO. More...
 
void bindBuffersToRenderObject (RenderObject *_obj)
 eventually rebuilds buffers used for rendering and binds index and vertex buffer
 
void unbindBuffers ()
 disables vertex, normal, texcoord and color pointers in OpenGL
 
void draw (std::map< int, GLuint > *_textureMap)
 binds index and vertex buffer and executes draw calls More...
 
void addTriRenderObjects (IRenderer *_renderer, const RenderObject *_baseObj, std::map< int, GLuint > *_textureMap)
 adds RenderObjects to a deferred draw call renderer More...
 
void drawLines ()
 render the mesh in wireframe mode
 
void addLineRenderObjects (IRenderer *_renderer, const RenderObject *_baseObj)
 render the mesh in wireframe mode, deferred draw call
 
void drawVertices ()
 render vertices only
 
void addPointRenderObjects (IRenderer *_renderer, const RenderObject *_baseObj)
 render vertices only, deferred draw call
 
unsigned int getMemoryUsage (bool _printReport=false)
 measures the size in bytes of allocated memory. eventually prints a report to std::cout
 
void updateTopology ()
 request an update for the mesh topology
 
void updateGeometry ()
 request an update for the mesh vertices
 
void updateTextures ()
 request an update for the textures
 
void updateFull ()
 request a full rebuild of the mesh More...
 
unsigned int getNumTextures ()
 returns the number of used textured of this mesh More...
 
void setTextureIndexPropertyName (std::string _indexPropertyName)
 set the name of the property used for texture index specification More...
 
const std::string & getTextureIndexPropertyName () const
 get the name of the texture index property More...
 
void setPerFaceTextureCoordinatePropertyName (std::string _perFaceTextureCoordinatePropertyName)
 set the name of the property used for texture coordinate More...
 
int perFaceTextureCoordinateAvailable ()
 Check if per Face Texture coordinates are available. More...
 
int perFaceTextureIndexAvailable ()
 Check if texture indices are available. More...
 
void addVertexElement (const std::string &_propertyName, PropertySource _source=PROPERTY_SOURCE_VERTEX)
 Add custom elements to the vertex layout. More...
 
bool scanVertexShaderForInput (const std::string &_vertexShaderFile)
 Scan vertex layout from vertex shader. More...
 
void updatePickingVertices (ACG::GLState &_state, uint _offset=0)
 
ACG::Vec4ucpickVertexColorBuffer ()
 get a pointer to the per vertex picking color buffer More...
 
ACG::Vec3fpickVertexBuffer ()
 get a pointer to the per vertex picking vertex buffer More...
 
void drawPickingVertices_opt (const GLMatrixf &_mvp, int _pickOffset)
 Optimized rendering of vertex picking ids with a shader. More...
 
bool supportsPickingVertices_opt ()
 Check if optimized vertex picking is supported. More...
 
void updatePickingVertices_opt (ACG::GLState &_state)
 Update color picking array for the shader implementation. More...
 
void updatePickingEdges (ACG::GLState &_state, uint _offset=0)
 Update color picking array for edges. More...
 
ACG::Vec4ucpickEdgeColorBuffer ()
 get a pointer to the per edge picking color buffer More...
 
void drawPickingEdges_opt (const GLMatrixf &_mvp, int _pickOffset)
 Optimized rendering of edge picking ids with a shader. More...
 
bool supportsPickingEdges_opt ()
 Check if optimized face picking is supported. More...
 
void updatePickingEdges_opt (ACG::GLState &_state)
 Update color picking array for the shader implementation. More...
 
void updatePickingFaces (ACG::GLState &_state)
 Update color picking array for faces. More...
 
ACG::Vec4ucpickFaceColorBuffer ()
 get a pointer to the per face picking color buffer More...
 
ACG::Vec3fpickFaceVertexBuffer ()
 get a pointer to the per vertex picking color buffer More...
 
void drawPickingFaces_opt (const GLMatrixf &_mvp, int _pickOffset)
 Optimized rendering of face picking ids with a shader. More...
 
bool supportsPickingFaces_opt ()
 Check if optimized face picking is supported. More...
 
void updatePickingFaces_opt (ACG::GLState &_state)
 Update color picking array for the shader implementation. More...
 
void updatePickingAny (ACG::GLState &_state)
 Call this function to update the color picking array. More...
 
ACG::Vec4ucpickAnyFaceColorBuffer ()
 get a pointer to the any picking color buffer More...
 
ACG::Vec4ucpickAnyEdgeColorBuffer ()
 get a pointer to the any picking color buffer More...
 
ACG::Vec4ucpickAnyVertexColorBuffer ()
 get a pointer to the any picking color buffer More...
 
void drawPickingAny_opt (const GLMatrixf &_mvp, int _pickOffset)
 Optimized rendering of any picking ids with a shader. More...
 
bool supportsPickingAny_opt ()
 Check if optimized any picking is supported. More...
 
void updatePickingAny_opt (ACG::GLState &_state)
 Update color picking array for the shader implementation. More...
 
void dumpObj (const char *_filename) const
 dump current vertex/index buffer to wavefront obj More...
 
void invalidatePerEdgeBuffers ()
 Update of the buffers. More...
 
void updatePerEdgeBuffers ()
 Update all per edge drawing buffers. More...
 
ACG::Vec3fperEdgeVertexBuffer ()
 get a pointer to the per edge vertex buffer More...
 
ACG::Vec4fperEdgeColorBuffer ()
 get a pointer to the per edge color buffer More...
 
void invalidatePerHalfedgeBuffers ()
 Update of the buffers. More...
 
template<typename Mesh::Normal(DrawMeshT::*)(typename Mesh::FaceHandle) NormalLookup>
void updatePerHalfedgeBuffers ()
 Update all per edge drawing buffer n The updated buffers are: per edge vertex buffer ( 2 vertices per edge )
 
ACG::Vec3fperHalfedgeVertexBuffer ()
 get a pointer to the per edge vertex buffer More...
 
ACG::Vec4fperHalfedgeColorBuffer ()
 get a pointer to the per edge color buffer More...
 
void updateEdgeHalfedgeVertexDeclarations ()
 updates per edge and halfedge vertex declarations
 
const VertexDeclarationgetEdgeColoredVertexDeclaration () const
 getter for vertex declarations
 
const VertexDeclarationgetHalfedgeVertexDeclaration () const
 getter for vertex declarations
 
const VertexDeclarationgetHalfedgeColoredVertexDeclaration () const
 getter for vertex declarations
 
- Public Member Functions inherited from ACG::DrawMeshBase
unsigned int getNumTris () const
 
unsigned int getNumVerts () const
 
MeshCompilergetMeshCompiler ()
 get mesh compiler used to create the draw mesh
 
unsigned int getNumSubsets () const
 
GLenum getIndexType () const
 get index type of index buffer
 
GLuint pickVertexIBO_opt ()
 get an index buffer mapping from openmesh vertices to drawmesh vbo vertices More...
 

Private Types

enum  REBUILD_TYPE {
  REBUILD_NONE = 0, REBUILD_FULL = 1, REBUILD_GEOMETRY = 2, REBUILD_TOPOLOGY = 4,
  REBUILD_TEXTURES = 8
}
 

Private Member Functions

void rebuild ()
 draw_mesh updater More...
 
void readVertex (unsigned int _vertex, const typename Mesh::VertexHandle _vh, const typename Mesh::HalfedgeHandle _hh, const typename Mesh::FaceHandle _fh)
 reads a vertex from mesh_ and write it to vertex buffer More...
 
unsigned int getVertexColor (const typename Mesh::VertexHandle _vh)
 return a vertex color from mesh More...
 
unsigned int getFaceColor (const typename Mesh::FaceHandle _fh)
 return a face color from mesh More...
 
void updateGPUBuffers ()
 eventually update vertex and index buffers More...
 
void createVBO ()
 stores the vertex buffer on the gpu More...
 
void createIBO ()
 stores the index buffer on the gpu More...
 
void createVertexDeclaration ()
 creates all vertex declarations needed for deferred draw call renderer More...
 
unsigned int countTris (unsigned int *_pOutMaxPolyVerts=0, unsigned int *_pOutNumIndices=0)
 Number of triangles after triangulation of the mesh. More...
 
int getTextureIDofTri (unsigned int _tri)
 get the texture index of a triangle More...
 
int getTextureIDofFace (unsigned int _face)
 get the texture index of a face More...
 
const void * getMeshPropertyType (OpenMesh::BaseProperty *_prop, GLuint *_outType, unsigned int *_outSize) const
 get the data type of a mesh property More...
 
template<class T >
const void * testMeshPropertyTypeT (const OpenMesh::BaseProperty *_prop, unsigned int *_outSize) const
 test mesh property for type T More...
 
void writeVertexElement (void *_dstBuf, unsigned int _vertex, unsigned int _stride, unsigned int _elementOffset, unsigned int _elementSize, const void *_elementData)
 
void writePosition (unsigned int _vertex, const ACG::Vec3d &_p)
 
void writeNormal (unsigned int _vertex, const ACG::Vec3d &_n)
 
void writeTexcoord (unsigned int _vertex, const ACG::Vec2f &_uv)
 
void writeColor (unsigned int _vertex, unsigned int _color)
 
void writeVertexProperty (unsigned int _vertex, const VertexElement *_elementDesc, const ACG::Vec4f &_propf)
 
void writeVertexProperty (unsigned int _vertex, const VertexElement *_elementDesc, const ACG::Vec4d &_propd)
 
template<typename Mesh::Normal(DrawMeshT::*)(typename Mesh::FaceHandle) NormalLookup>
Mesh::Point halfedge_point (const typename Mesh::HalfedgeHandle _heh)
 compute halfedge point compute visualization point for halfedge (shifted to interior of face) More...
 
Mesh::Normal cachedNormalLookup (typename Mesh::FaceHandle fh)
 
Mesh::Normal computedTriMeshNormal (typename Mesh::FaceHandle fh)
 
Mesh::Normal computedNormal (typename Mesh::FaceHandle fh)
 
Mesh::HalfedgeHandle mapToHalfedgeHandle (int _vertexId)
 

Private Attributes

std::vector< ACG::Vec3fpickVertBuf_
 The vertex buffer used for vertex picking.
 
std::vector< ACG::Vec4ucpickVertColBuf_
 The color buffer used for vertex picking.
 
GLSL::ProgrampickVertexShader_
 
int pickVertexMethod_
 
std::vector< ACG::Vec4ucpickEdgeBuf_
 
GLSL::ProgrampickEdgeShader_
 
std::vector< ACG::Vec3fpickFaceVertexBuf_
 
std::vector< ACG::Vec4ucpickFaceColBuf_
 
GLSL::ProgrampickFaceShader_
 optimized face picking shader
 
std::vector< ACG::Vec4ucpickAnyFaceColBuf_
 
std::vector< ACG::Vec4ucpickAnyEdgeColBuf_
 
std::vector< ACG::Vec4ucpickAnyVertexColBuf_
 
Meshmesh_
 OpenMesh object to be rendered.
 
unsigned int * indices_
 final index buffer used for rendering
 
unsigned int rebuild_
 hint on what to rebuild
 
size_t prevNumFaces_
 
size_t prevNumVerts_
 
int colorMode_
 Color Mode: 0: none, 1: per vertex, else: per face.
 
int curVBOColorMode_
 Color Mode of vbo.
 
int flatMode_
 flat / smooth shade mode toggle
 
int bVBOinFlatMode_
 normals in VBO currently in flat / smooth mode
 
int textureMode_
 per vertex / halfedge texture mode toggle: 0: per vertex, 1: per halfedge
 
int bVBOinHalfedgeTexMode_
 texcoords in VBO currently in per vertex / halfedge mode toggle
 
int halfedgeNormalMode_
 per vertex / halfedge normals mode toggle: 0: per vertex, 1: per halfedge
 
int bVBOinHalfedgeNormalMode_
 normals in VBO currently in per vertex / halfedge mode toggle
 
unsigned int * invVertexMap_
 
const size_t offsetPos_
 fixed vertex elements:
 
const size_t offsetNormal_
 
const size_t offsetTexc_
 
const size_t offsetColor_
 
std::vector< VertexPropertyadditionalElements_
 additional optional elements
 
std::string textureIndexPropertyName_
 Property for the per face texture index. More...
 
std::string perFaceTextureCoordinatePropertyName_
 Property for the per face texture coordinates. More...
 
int updatePerEdgeBuffers_
 
std::vector< ACG::Vec3fperEdgeVertexBuf_
 
std::vector< ACG::Vec4fperEdgeColorBuf_
 
int updatePerHalfedgeBuffers_
 
std::vector< ACG::Vec3fperHalfedgeVertexBuf_
 
std::vector< ACG::Vec4fperHalfedgeColorBuf_
 

Additional Inherited Members

- Protected Member Functions inherited from ACG::DrawMeshBase
void deleteIbo ()
 
void bindVbo ()
 
void bindIbo ()
 
void bindLineIbo ()
 
void bindPickVertexIbo ()
 
void createIndexBuffer ()
 
void fillLineBuffer (size_t n_edges, void *data)
 
void fillVertexBuffer ()
 
void fillInvVertexMap (size_t n_vertices, void *data)
 
- Protected Attributes inherited from ACG::DrawMeshBase
GLuint vbo_
 
GLuint ibo_
 
size_t numTris_
 
size_t numVerts_
 
MeshCompilermeshComp_
 
GLuint lineIBO_
 index buffer used in Wireframe / Hiddenline mode
 
GLenum indexType_
 support for 2 and 4 byte unsigned integers
 
std::vector< char > vertices_
 
VertexDeclarationvertexDecl_
 vertex buffer layout declaration with per vertex colors
 
VertexDeclarationvertexDeclEdgeCol_
 vertex buffer layout declaration with per edge colors
 
VertexDeclarationvertexDeclHalfedgeCol_
 vertex buffer layout declaration with per halfedge colors
 
VertexDeclarationvertexDeclHalfedgePos_
 vertex buffer layout declaration with halfedge positions only
 
GLuint pickVertexIBO_
 map from openmesh vertex to vbo vertex id
 

Detailed Description

template<class Mesh>
class ACG::DrawMeshT< Mesh >

Mesh Drawing Class.

This class creates a new mesh for efficient rendering based on an OpenMesh object. DrawMesh also supports optimized picking and toggling between vertex/halfedge/face normals and vertex/halfedge texcoords.

It is not recommended to use this class if the input mesh does not implement an OpenMesh kernel. Instead, MeshCompiler can be used directly to build the vertex and index buffer.

Definition at line 165 of file DrawMesh.hh.

Member Function Documentation

template<class Mesh >
void ACG::DrawMeshT< Mesh >::addTriRenderObjects ( IRenderer _renderer,
const RenderObject _baseObj,
std::map< int, GLuint > *  _textureMap 
)

adds RenderObjects to a deferred draw call renderer

Parameters
_rendererrenderobjects are added to this renderer
_baseObjaddress of the base renderobject with information about shader generation, gl states, matrices ..
_textureMapmaps from internally texture-id to OpenGL texture id may be null to disable textured rendering

Definition at line 1387 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::addVertexElement ( const std::string &  _propertyName,
PropertySource  _source = PROPERTY_SOURCE_VERTEX 
)

Add custom elements to the vertex layout.

Parameters
_propertyNamename id of property in OpenMesh
_sourcesource of property, ie per vertex, per face or per halfedge

Definition at line 2496 of file DrawMeshT.cc.

template<class Mesh >
unsigned int ACG::DrawMeshT< Mesh >::countTris ( unsigned int *  _pOutMaxPolyVerts = 0,
unsigned int *  _pOutNumIndices = 0 
)
private

Number of triangles after triangulation of the mesh.

returns the number of tris after triangulation of this mesh if needed, also returns the highest number of vertices of a face

Parameters
_pOutMaxPolyVertsmax face size
_pOutNumIndicestotal number of indices
Returns
number of triangles

Definition at line 1504 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::createIBO ( )
private

stores the index buffer on the gpu

Definition at line 1095 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::createVBO ( )
private

stores the vertex buffer on the gpu

Definition at line 891 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::createVertexDeclaration ( )
private

creates all vertex declarations needed for deferred draw call renderer

Definition at line 2333 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::draw ( std::map< int, GLuint > *  _textureMap)

binds index and vertex buffer and executes draw calls

Parameters
_textureMapmaps from internally texture-id to OpenGL texture id may be null to disable textured rendering

Definition at line 1349 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::drawPickingAny_opt ( const GLMatrixf _mvp,
int  _pickOffset 
)

Optimized rendering of any picking ids with a shader.

Parameters
_mvpmodel view projection transformation
_pickOffsetbase picking id of the first element

Definition at line 2219 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::drawPickingEdges_opt ( const GLMatrixf _mvp,
int  _pickOffset 
)

Optimized rendering of edge picking ids with a shader.

Parameters
_mvpmodel view projection transformation
_pickOffsetbase picking id of the first edge

Definition at line 1924 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::drawPickingFaces_opt ( const GLMatrixf _mvp,
int  _pickOffset 
)

Optimized rendering of face picking ids with a shader.

Parameters
_mvpmodel view projection transformation
_pickOffsetbase picking id of the first face

Definition at line 2055 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::drawPickingVertices_opt ( const GLMatrixf _mvp,
int  _pickOffset 
)

Optimized rendering of vertex picking ids with a shader.

Parameters
_mvpmodel view projection transformation
_pickOffsetbase picking id of the first vertex

Definition at line 1653 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::dumpObj ( const char *  _filename) const

dump current vertex/index buffer to wavefront obj

Parameters
_filenamefile name of obj file

Definition at line 2640 of file DrawMeshT.cc.

template<class Mesh >
unsigned int ACG::DrawMeshT< Mesh >::getFaceColor ( const typename Mesh::FaceHandle  _fh)
private

return a face color from mesh

Parameters
_fhmesh face handle

Definition at line 847 of file DrawMeshT.cc.

template<class Mesh >
const void * ACG::DrawMeshT< Mesh >::getMeshPropertyType ( OpenMesh::BaseProperty _prop,
GLuint *  _outType,
unsigned int *  _outSize 
) const
private

get the data type of a mesh property

Parameters
_propmesh property
_outType[out] data type i.e. GL_FLOAT, GL_DOUBLE
_outSize[out] number of atoms in range 1..4
Returns
address of property data

Definition at line 154 of file DrawMeshT.cc.

template<class Mesh >
unsigned int ACG::DrawMeshT< Mesh >::getNumTextures ( )

returns the number of used textured of this mesh

Returns
Number of different textures used in the mesh

Definition at line 2287 of file DrawMeshT.cc.

template<class Mesh >
int ACG::DrawMeshT< Mesh >::getTextureIDofFace ( unsigned int  _face)
private

get the texture index of a face

Parameters
_faceFace index
Returns
Face Texture id of face

Definition at line 869 of file DrawMeshT.cc.

template<class Mesh >
int ACG::DrawMeshT< Mesh >::getTextureIDofTri ( unsigned int  _tri)
private

get the texture index of a triangle

Parameters
_triTriangle index (-1 if not available)
Returns
Texture index of a triangle

Definition at line 883 of file DrawMeshT.cc.

template<class Mesh>
const std::string& ACG::DrawMeshT< Mesh >::getTextureIndexPropertyName ( ) const
inline

get the name of the texture index property

Returns
name of the texture index property

Definition at line 308 of file DrawMesh.hh.

template<class Mesh >
unsigned int ACG::DrawMeshT< Mesh >::getVertexColor ( const typename Mesh::VertexHandle  _vh)
private

return a vertex color from mesh

Parameters
_vhmesh vertex handle

Definition at line 825 of file DrawMeshT.cc.

template<class Mesh >
template<typename Mesh::Normal(DrawMeshT< Mesh >::*)(typename Mesh::FaceHandle) NormalLookup>
Mesh::Point ACG::DrawMeshT< Mesh >::halfedge_point ( const typename Mesh::HalfedgeHandle  _heh)
private

compute halfedge point compute visualization point for halfedge (shifted to interior of face)

Parameters
_heh
Returns

Definition at line 1812 of file DrawMeshT.cc.

template<class Mesh>
void ACG::DrawMeshT< Mesh >::invalidatePerEdgeBuffers ( )
inline

Update of the buffers.

This function will set all per edge buffers to invalid and will force an update whe they are requested

Definition at line 948 of file DrawMesh.hh.

template<class Mesh>
void ACG::DrawMeshT< Mesh >::invalidatePerHalfedgeBuffers ( )
inline

Update of the buffers.

This function will set all per edge buffers to invalid and will force an update whe they are requested

Definition at line 973 of file DrawMesh.hh.

template<class Mesh >
unsigned int ACG::DrawMeshT< Mesh >::mapVertexToVBOIndex ( unsigned int  _v)

map from vertex index of the original mesh point buffer to the corresponding vertex index inside the VBO.

Parameters
_vvertex index into mesh points
Returns
vertex index into VBO

Definition at line 1277 of file DrawMeshT.cc.

template<class Mesh >
ACG::Vec4f * ACG::DrawMeshT< Mesh >::perEdgeColorBuffer ( )

get a pointer to the per edge color buffer

This function will return a pointer to the first element of the color buffer.

Definition at line 1546 of file DrawMeshT.cc.

template<class Mesh >
ACG::Vec3f * ACG::DrawMeshT< Mesh >::perEdgeVertexBuffer ( )

get a pointer to the per edge vertex buffer

This function will return a pointer to the first element of the vertex buffer.

Definition at line 1537 of file DrawMeshT.cc.

template<class Mesh >
int ACG::DrawMeshT< Mesh >::perFaceTextureCoordinateAvailable ( )

Check if per Face Texture coordinates are available.

If this function returns true, a per face per vertex texture array is available

Returns
zero if not available, nonzero otherwise

Definition at line 2299 of file DrawMeshT.cc.

template<class Mesh >
int ACG::DrawMeshT< Mesh >::perFaceTextureIndexAvailable ( )

Check if texture indices are available.

If this function returns true, the strip processor will respect textures during strip generation. Each returned strip has than an index that has to be used as a texture index during strip rendering.

Returns
zero if not available, nonzero otherwise

Definition at line 2315 of file DrawMeshT.cc.

template<class Mesh >
ACG::Vec4f * ACG::DrawMeshT< Mesh >::perHalfedgeColorBuffer ( )

get a pointer to the per edge color buffer

This function will return a pointer to the first element of the color buffer.

Definition at line 1856 of file DrawMeshT.cc.

template<class Mesh >
ACG::Vec3f * ACG::DrawMeshT< Mesh >::perHalfedgeVertexBuffer ( )

get a pointer to the per edge vertex buffer

This function will return a pointer to the first element of the vertex buffer.

Definition at line 1841 of file DrawMeshT.cc.

template<class Mesh>
ACG::Vec4uc* ACG::DrawMeshT< Mesh >::pickAnyEdgeColorBuffer ( )
inline

get a pointer to the any picking color buffer

This function will return a pointer to the first element of the picking buffer. Use updatePickingAny to update the buffer before you render it via ACG::GLState::colorPointer.

Returns
Pointer to the first element of the picking buffer

Definition at line 698 of file DrawMesh.hh.

template<class Mesh>
ACG::Vec4uc* ACG::DrawMeshT< Mesh >::pickAnyFaceColorBuffer ( )
inline

get a pointer to the any picking color buffer

This function will return a pointer to the first element of the picking buffer. Use updatePickingAny to update the buffer before you render it via ACG::GLState::colorPointer.

Returns
Pointer to the first element of the picking buffer

Definition at line 681 of file DrawMesh.hh.

template<class Mesh>
ACG::Vec4uc* ACG::DrawMeshT< Mesh >::pickAnyVertexColorBuffer ( )
inline

get a pointer to the any picking color buffer

This function will return a pointer to the first element of the picking buffer. Use updatePickingAny to update the buffer before you render it via ACG::GLState::colorPointer.

Returns
Pointer to the first element of the picking buffer

Definition at line 715 of file DrawMesh.hh.

template<class Mesh>
ACG::Vec4uc* ACG::DrawMeshT< Mesh >::pickEdgeColorBuffer ( )
inline

get a pointer to the per edge picking color buffer

This function will return a pointer to the first element of the picking buffer. Use updatePickingEdges to update the buffer before you render it via ACG::GLState::colorPointer.

Returns
pointer to the first element of the picking buffer

Definition at line 539 of file DrawMesh.hh.

template<class Mesh>
ACG::Vec4uc* ACG::DrawMeshT< Mesh >::pickFaceColorBuffer ( )
inline

get a pointer to the per face picking color buffer

This function will return a pointer to the first element of the picking buffer. Use updatePickingFaces to update the buffer before you render it via ACG::GLState::colorPointer.

Returns
pointer to the per face picking color buffer

Definition at line 592 of file DrawMesh.hh.

template<class Mesh>
ACG::Vec3f* ACG::DrawMeshT< Mesh >::pickFaceVertexBuffer ( )
inline

get a pointer to the per vertex picking color buffer

This function will return a pointer to the first element of the picking buffer. Use updatePickingFaces to update the buffer before you render it via ACG::GLState::colorPointer.

Returns
pointer to the first element of the picking buffer

Definition at line 609 of file DrawMesh.hh.

template<class Mesh>
ACG::Vec3f* ACG::DrawMeshT< Mesh >::pickVertexBuffer ( )
inline

get a pointer to the per vertex picking vertex buffer

This function will return a pointer to the first element of the picking buffer. Use updatePickingVertices to update the buffer before you render it via ACG::GLState::vertexPointer.

Returns
pointer to the first element of the picking buffer

Definition at line 454 of file DrawMesh.hh.

template<class Mesh>
ACG::Vec4uc* ACG::DrawMeshT< Mesh >::pickVertexColorBuffer ( )
inline

get a pointer to the per vertex picking color buffer

This function will return a pointer to the first element of the picking buffer. Use updatePickingVertices to update the buffer before you render it via ACG::GLState::colorPointer.

Returns
pointer to the first element of the picking buffer

Definition at line 437 of file DrawMesh.hh.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::readVertex ( unsigned int  _vertex,
const typename Mesh::VertexHandle  _vh,
const typename Mesh::HalfedgeHandle  _hh,
const typename Mesh::FaceHandle  _fh 
)
private

reads a vertex from mesh_ and write it to vertex buffer

Parameters
_vertextarget vertex id in vbo
_vhmesh vertex handle to read from
_hhcorresponding halfedge handle of this vertex
_fhcorresponding face handle of this vertex

Definition at line 746 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::rebuild ( )
private

draw_mesh updater

Definition at line 399 of file DrawMeshT.cc.

template<class Mesh >
bool ACG::DrawMeshT< Mesh >::scanVertexShaderForInput ( const std::string &  _vertexShaderFile)

Scan vertex layout from vertex shader.

Scans a vertex shader for inputs and tries to get the matching properties from OpenMesh. The name of the input attribute in the shader has to match the property name in OpenMesh. Per halfedge properties are preferred over per vertex properties when available. Per face properties are used if the attribute is qualified as "flat" in the shader.

Parameters
_vertexShaderFilefilename of vertex shader (or vertex shader template)
Returns
true if all requested properties are available, false otherwise

Definition at line 2526 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::setPerFaceTextureCoordinatePropertyName ( std::string  _perFaceTextureCoordinatePropertyName)

set the name of the property used for texture coordinate

The given property name will define per face Texture coordinates. This property has to be a halfedge property. The coordinate on each edge is the texture coordinate of the to vertex. If this property is not available, textures will not be processed by the strip processor.

Parameters
_perFaceTextureCoordinatePropertyName

Definition at line 2267 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::setTextureIndexPropertyName ( std::string  _indexPropertyName)

set the name of the property used for texture index specification

The given property name will define a texture index. The strip processor checks this property and generates strips which contain only the same index. If the property is not found, strips will be independent of this property

Parameters
_indexPropertyName

Definition at line 2243 of file DrawMeshT.cc.

template<class Mesh >
bool ACG::DrawMeshT< Mesh >::supportsPickingAny_opt ( )

Check if optimized any picking is supported.

Definition at line 2212 of file DrawMeshT.cc.

template<class Mesh >
bool ACG::DrawMeshT< Mesh >::supportsPickingEdges_opt ( )

Check if optimized face picking is supported.

Definition at line 1913 of file DrawMeshT.cc.

template<class Mesh >
bool ACG::DrawMeshT< Mesh >::supportsPickingFaces_opt ( )

Check if optimized face picking is supported.

Definition at line 2041 of file DrawMeshT.cc.

template<class Mesh >
bool ACG::DrawMeshT< Mesh >::supportsPickingVertices_opt ( )

Check if optimized vertex picking is supported.

Definition at line 1628 of file DrawMeshT.cc.

template<class Mesh >
template<class T >
const void * ACG::DrawMeshT< Mesh >::testMeshPropertyTypeT ( const OpenMesh::BaseProperty _prop,
unsigned int *  _outSize 
) const
private

test mesh property for type T

Test whether property is of type T (eg float) or is a vector of type T. Property vectors up to size 4 are supported (native vertex properties).

Parameters
_propmesh property
_outSize[out] number of atoms in range 1..4, set to 0 if test failed
Returns
address of property data, 0 if test failed

Definition at line 102 of file DrawMeshT.cc.

template<class Mesh>
void ACG::DrawMeshT< Mesh >::updateFull ( )
inline

request a full rebuild of the mesh

Definition at line 286 of file DrawMesh.hh.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::updateGPUBuffers ( )
private

eventually update vertex and index buffers

Definition at line 1238 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::updatePerEdgeBuffers ( )

Update all per edge drawing buffers.

The updated buffers are: vertex buffer ( 2 vertices per edge ), color buffer

Definition at line 1725 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::updatePickingAny ( ACG::GLState _state)

Call this function to update the color picking array.

This function calls the updatePickingVertices, updatePickingEdges, updatePickingVertices functions with an appropriate offset so that the standard arrays will be updated.

Parameters
_stateOpenGL state

Definition at line 2126 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::updatePickingAny_opt ( ACG::GLState _state)

Update color picking array for the shader implementation.

Parameters
_state

Definition at line 2202 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::updatePickingEdges ( ACG::GLState _state,
uint  _offset = 0 
)

Update color picking array for edges.

Call this function to update the color picking array The _offsett value can be used to shift the color in the resulting arrays. pick Any uses the offset to generate arrays for picking everything.

Parameters
_state
_offset

Definition at line 1874 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::updatePickingEdges_opt ( ACG::GLState _state)

Update color picking array for the shader implementation.

Parameters
_state

Definition at line 1899 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::updatePickingFaces ( ACG::GLState _state)

Update color picking array for faces.

Parameters
_state

Definition at line 1975 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::updatePickingFaces_opt ( ACG::GLState _state)

Update color picking array for the shader implementation.

Parameters
_state

Definition at line 2020 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::updatePickingVertices ( ACG::GLState _state,
uint  _offset = 0 
)

Call this function to update the color picking array The _offsett value can be used to shift the color in the resulting arrays. pick Any uses the offset to generate arrays for picking everything.

Parameters
_state
_offset

Definition at line 1556 of file DrawMeshT.cc.

template<class Mesh >
void ACG::DrawMeshT< Mesh >::updatePickingVertices_opt ( ACG::GLState _state)

Update color picking array for the shader implementation.

Parameters
_state

Definition at line 1576 of file DrawMeshT.cc.

Member Data Documentation

template<class Mesh>
unsigned int* ACG::DrawMeshT< Mesh >::invVertexMap_
private

inverse vertex map: original OpenMesh vertex index -> one vertex index in vbo this map is ambiguous and only useful for per vertex attributes rendering i.e. lines!

Definition at line 857 of file DrawMesh.hh.

template<class Mesh>
std::string ACG::DrawMeshT< Mesh >::perFaceTextureCoordinatePropertyName_
private

Property for the per face texture coordinates.

This property is used by the mesh for texture coordinate specification. If this is invalid, then the strip processor will ignore per face textures during processing.

Definition at line 917 of file DrawMesh.hh.

template<class Mesh>
size_t ACG::DrawMeshT< Mesh >::prevNumFaces_
private

used to track mesh changes, that require a full rebuild values directly taken from Mesh template

Definition at line 826 of file DrawMesh.hh.

template<class Mesh>
std::string ACG::DrawMeshT< Mesh >::textureIndexPropertyName_
private

Property for the per face texture index.

This property is used by the mesh for texture index specification. If this is invalid, then it is assumed that there is one or no active texture. This means that the generated strips will be independent of texture information.

Definition at line 910 of file DrawMesh.hh.


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