Inheritance diagram for osgUtil::Tesselator:
Public Types | |
enum | WindingType { TESS_WINDING_ODD = GLU_TESS_WINDING_ODD, TESS_WINDING_NONZERO = GLU_TESS_WINDING_NONZERO, TESS_WINDING_POSITIVE = GLU_TESS_WINDING_POSITIVE, TESS_WINDING_NEGATIVE = GLU_TESS_WINDING_NEGATIVE, TESS_WINDING_ABS_GEQ_TWO = GLU_TESS_WINDING_ABS_GEQ_TWO } |
enum | TesselationType { TESS_TYPE_GEOMETRY, TESS_TYPE_DRAWABLE, TESS_TYPE_POLYGONS } |
typedef std::vector< osg::Vec3 * > | VertexPointList |
typedef std::vector< osg::ref_ptr< Prim > > | PrimList |
Public Member Functions | |
Tesselator () | |
~Tesselator () | |
void | setBoundaryOnly (const bool tt) |
const bool | getBoundaryOnly () |
void | setWindingType (const WindingType wt) |
const WindingType | getWindingType () |
void | setTesselationType (const TesselationType tt) |
const TesselationType | getTesselationType () |
void | retesselatePolygons (osg::Geometry &cxgeom) |
void | setTesselationNormal (const osg::Vec3 norm) |
osg::Geometry::PrimitiveSetList | getContours () |
void | beginTesselation () |
void | beginContour () |
void | addVertex (osg::Vec3 *vertex) |
void | endContour () |
void | endTesselation () |
PrimList & | getPrimList () |
void | reset () |
Protected Types | |
typedef std::map< osg::Vec3 *, unsigned int > | VertexPtrToIndexMap |
typedef std::vector< NewVertex > | NewVertexList |
typedef std::vector< Vec3d * > | Vec3dList |
Protected Member Functions | |
void | reduceArray (osg::Array *cold, const unsigned int nnu) |
void | collectTesselation (osg::Geometry &cxgeom, unsigned int originalIndex) |
void | addContour (GLenum mode, unsigned int first, unsigned int last, osg::Vec3Array *vertices) |
void | addContour (osg::PrimitiveSet *primitive, osg::Vec3Array *vertices) |
void | handleNewVertices (osg::Geometry &geom, VertexPtrToIndexMap &vertexPtrToIndexMap) |
void | begin (GLenum mode) |
void | vertex (osg::Vec3 *vertex) |
void | combine (osg::Vec3 *vertex, void *vertex_data[4], GLfloat weight[4]) |
void | end () |
void | error (GLenum errorCode) |
Static Protected Member Functions | |
static void CALLBACK | beginCallback (GLenum which, void *userData) |
static void CALLBACK | vertexCallback (GLvoid *data, void *userData) |
static void CALLBACK | combineCallback (GLdouble coords[3], void *vertex_data[4], GLfloat weight[4], void **outData, void *useData) |
static void CALLBACK | endCallback (void *userData) |
static void CALLBACK | errorCallback (GLenum errorCode, void *userData) |
Protected Attributes | |
GLUtesselator * | _tobj |
PrimList | _primList |
Vec3dList | _coordData |
NewVertexList | _newVertexList |
GLenum | _errorCode |
WindingType | _wtype |
TesselationType | _ttype |
bool | _boundaryOnly |
unsigned int | _numberVerts |
osg::Geometry::PrimitiveSetList | _Contours |
unsigned int | _index |
osg::Vec3 | tessNormal |
unsigned int | _extraPrimitives |
Classes | |
struct | NewVertex |
struct | Prim |
struct | Vec3d |
typedef std::vector<osg::Vec3*> osgUtil::Tesselator::VertexPointList |
typedef std::vector< osg::ref_ptr<Prim> > osgUtil::Tesselator::PrimList |
typedef std::map<osg::Vec3*,unsigned int> osgUtil::Tesselator::VertexPtrToIndexMap [protected] |
typedef std::vector<NewVertex> osgUtil::Tesselator::NewVertexList [protected] |
typedef std::vector<Vec3d*> osgUtil::Tesselator::Vec3dList [protected] |
osgUtil::Tesselator::Tesselator | ( | ) |
osgUtil::Tesselator::~Tesselator | ( | ) |
void osgUtil::Tesselator::setBoundaryOnly | ( | const bool | tt | ) | [inline] |
Set and get tesselation request boundary only on/off
const bool osgUtil::Tesselator::getBoundaryOnly | ( | ) | [inline] |
void osgUtil::Tesselator::setWindingType | ( | const WindingType | wt | ) | [inline] |
Set and get tesselation windong rule
const WindingType osgUtil::Tesselator::getWindingType | ( | ) | [inline] |
void osgUtil::Tesselator::setTesselationType | ( | const TesselationType | tt | ) | [inline] |
Set and get tesselation type
const TesselationType osgUtil::Tesselator::getTesselationType | ( | ) | [inline] |
void osgUtil::Tesselator::retesselatePolygons | ( | osg::Geometry & | cxgeom | ) |
Change the contours lists of the geometry into tesselated primitives (the list of primitives in the original geometry is stored in the tesselator for possible re-use. The name remains retesselatePolygons although it now handles trifans, strips, quads etc. as well as Polygons so as to not break old codes relying on this function name.
void osgUtil::Tesselator::setTesselationNormal | ( | const osg::Vec3 | norm | ) | [inline] |
Define the normal to the tesselated polygon - this provides a hint how to tesselate the contours; see gluTessNormal in red book or man pages. GWM July 2005. Can improve teselation "For example, if you know that all polygons lie in the x-y plane, call gluTessNormal(tess, 0.0, 0.0, 1.0) before rendering any polygons."
osg::Geometry::PrimitiveSetList osgUtil::Tesselator::getContours | ( | ) | [inline] |
void osgUtil::Tesselator::beginTesselation | ( | ) |
void osgUtil::Tesselator::beginContour | ( | ) |
void osgUtil::Tesselator::addVertex | ( | osg::Vec3 * | vertex | ) |
void osgUtil::Tesselator::endContour | ( | ) |
void osgUtil::Tesselator::endTesselation | ( | ) |
PrimList& osgUtil::Tesselator::getPrimList | ( | ) | [inline] |
void osgUtil::Tesselator::reset | ( | ) |
void osgUtil::Tesselator::reduceArray | ( | osg::Array * | cold, | |
const unsigned int | nnu | |||
) | [protected] |
remove unused parts of the array, eg for wehn retesselating tesselation can introduce extra vertices for concave or crossing boundaries, these will leak memory if not removed when retesselating.
void osgUtil::Tesselator::collectTesselation | ( | osg::Geometry & | cxgeom, | |
unsigned int | originalIndex | |||
) | [protected] |
void osgUtil::Tesselator::addContour | ( | GLenum | mode, | |
unsigned int | first, | |||
unsigned int | last, | |||
osg::Vec3Array * | vertices | |||
) | [protected] |
void osgUtil::Tesselator::addContour | ( | osg::PrimitiveSet * | primitive, | |
osg::Vec3Array * | vertices | |||
) | [protected] |
void osgUtil::Tesselator::handleNewVertices | ( | osg::Geometry & | geom, | |
VertexPtrToIndexMap & | vertexPtrToIndexMap | |||
) | [protected] |
void osgUtil::Tesselator::begin | ( | GLenum | mode | ) | [protected] |
void osgUtil::Tesselator::vertex | ( | osg::Vec3 * | vertex | ) | [protected] |
void osgUtil::Tesselator::combine | ( | osg::Vec3 * | vertex, | |
void * | vertex_data[4], | |||
GLfloat | weight[4] | |||
) | [protected] |
void osgUtil::Tesselator::end | ( | ) | [protected] |
void osgUtil::Tesselator::error | ( | GLenum | errorCode | ) | [protected] |
static void CALLBACK osgUtil::Tesselator::beginCallback | ( | GLenum | which, | |
void * | userData | |||
) | [static, protected] |
static void CALLBACK osgUtil::Tesselator::vertexCallback | ( | GLvoid * | data, | |
void * | userData | |||
) | [static, protected] |
static void CALLBACK osgUtil::Tesselator::combineCallback | ( | GLdouble | coords[3], | |
void * | vertex_data[4], | |||
GLfloat | weight[4], | |||
void ** | outData, | |||
void * | useData | |||
) | [static, protected] |
static void CALLBACK osgUtil::Tesselator::endCallback | ( | void * | userData | ) | [static, protected] |
static void CALLBACK osgUtil::Tesselator::errorCallback | ( | GLenum | errorCode, | |
void * | userData | |||
) | [static, protected] |
GLUtesselator* osgUtil::Tesselator::_tobj [protected] |
PrimList osgUtil::Tesselator::_primList [protected] |
Vec3dList osgUtil::Tesselator::_coordData [protected] |
NewVertexList osgUtil::Tesselator::_newVertexList [protected] |
GLenum osgUtil::Tesselator::_errorCode [protected] |
WindingType osgUtil::Tesselator::_wtype [protected] |
winding rule, which parts will become solid
TesselationType osgUtil::Tesselator::_ttype [protected] |
tesselation rule, which parts will become solid
bool osgUtil::Tesselator::_boundaryOnly [protected] |
unsigned int osgUtil::Tesselator::_numberVerts [protected] |
number of vertices that are part of the 'original' set of contours
List of primitives that define the contours
unsigned int osgUtil::Tesselator::_index [protected] |
count number of primitives in a geometry to get right no. of norms/colurs etc for per_primitive attributes.
osg::Vec3 osgUtil::Tesselator::tessNormal [protected] |
the gluTessNormal for tesselation hint
unsigned int osgUtil::Tesselator::_extraPrimitives [protected] |
count of number of extra primitives added