Cortex  10.0.0-a4
Public Member Functions | Static Public Member Functions | List of all members
IECore::MeshPrimitive Class Reference

#include <MeshPrimitive.h>

+ Inheritance diagram for IECore::MeshPrimitive:

Public Member Functions

 IE_CORE_DECLAREOBJECT (MeshPrimitive, Primitive)
 
 MeshPrimitive ()
 Construct a MeshPrimitive with no faces.
 
 MeshPrimitive (ConstIntVectorDataPtr verticesPerFace, ConstIntVectorDataPtr vertexIds, const std::string &interpolation="linear", V3fVectorDataPtr p=nullptr)
 
size_t variableSize (PrimitiveVariable::Interpolation interpolation) const override
 
void render (Renderer *renderer) const override
 Render the mesh.
 
void topologyHash (MurmurHash &h) const override
 Hash representing the topology only.
 
Topology access

These functions allow access to get and set topology after construction.

size_t numFaces () const
 
const IntVectorData * verticesPerFace () const
 
int minVerticesPerFace () const
 
int maxVerticesPerFace () const
 
const IntVectorData * vertexIds () const
 
const std::string & interpolation () const
 
void setTopology (ConstIntVectorDataPtr verticesPerFace, ConstIntVectorDataPtr vertexIds, const std::string &interpolation="linear")
 
void setTopologyUnchecked (ConstIntVectorDataPtr verticesPerFace, ConstIntVectorDataPtr vertexIds, size_t numVertices, const std::string &interpolation="linear")
 
void setInterpolation (const std::string &interpolation)
 
PolygonIterator faceBegin ()
 
PolygonIterator faceEnd ()
 
- Public Member Functions inherited from IECore::Primitive
 IE_CORE_DECLAREABSTRACTOBJECT (Primitive, VisibleRenderable)
 
template<typename T >
T * variableData (const std::string &name, PrimitiveVariable::Interpolation requiredInterpolation=PrimitiveVariable::Invalid)
 
template<typename T >
const T * variableData (const std::string &name, PrimitiveVariable::Interpolation requiredInterpolation=PrimitiveVariable::Invalid) const
 
template<typename T >
T::Ptr expandedVariableData (const std::string &name, PrimitiveVariable::Interpolation requiredInterpolation=PrimitiveVariable::Invalid) const
 
bool isPrimitiveVariableValid (const PrimitiveVariable &pv) const
 Returns true if the given primitive variable has the correct size for its interpolation type.
 
bool arePrimitiveVariablesValid () const
 Returns true if all primitive variables have the correct size for their interpolation type.
 
PrimitiveVariable::Interpolation inferInterpolation (size_t numElements) const
 
PrimitiveVariable::Interpolation inferInterpolation (const Data *data) const
 
Imath::Box3f bound () const override
 
- Public Member Functions inherited from IECore::VisibleRenderable
 IE_CORE_DECLAREABSTRACTOBJECT (VisibleRenderable, Renderable)
 
- Public Member Functions inherited from IECore::Renderable
 IE_CORE_DECLAREABSTRACTOBJECT (Renderable, BlindDataHolder)
 
- Public Member Functions inherited from IECore::BlindDataHolder
 BlindDataHolder (CompoundDataPtr data)
 
 IE_CORE_DECLAREOBJECT (BlindDataHolder, Object)
 
CompoundDatablindData ()
 Return the blind data for modification.
 
const CompoundDatablindData () const
 
- Public Member Functions inherited from IECore::Object
 IE_CORE_DECLARERUNTIMETYPED (Object, RunTimeTyped)
 
ObjectPtr copy () const
 
void copyFrom (const Object *other)
 
void save (IndexedIOPtr ioInterface, const IndexedIO::EntryID &name) const
 
virtual bool isEqualTo (const Object *other) const =0
 
virtual bool isNotEqualTo (const Object *other) const
 
bool operator== (const Object &other) const
 Calls isEqualTo() for people who prefer to use the operator syntax.
 
bool operator!= (const Object &other) const
 Calls isNotEqualTo() for people who prefer to use the operator syntax.
 
size_t memoryUsage () const
 Returns the number of bytes this instance occupies in memory.
 
MurmurHash hash () const
 
virtual void hash (MurmurHash &h) const =0
 
- Public Member Functions inherited from IECore::RunTimeTyped
 IE_CORE_DECLAREMEMBERPTR (RunTimeTyped)
 
virtual TypeId typeId () const
 
virtual const char * typeName () const
 
virtual bool isInstanceOf (TypeId typeId) const
 
virtual bool isInstanceOf (const char *typeName) const
 
- Public Member Functions inherited from IECore::RefCounted
 IE_CORE_DECLAREMEMBERPTR (RefCounted)
 
void addRef () const
 Add a reference to the current object.
 
void removeRef () const
 Remove a reference from the current object.
 
RefCount refCount () const
 Returns the current reference count.
 

Static Public Member Functions

static MeshPrimitivePtr createBox (const Imath::Box3f &b)
 
static MeshPrimitivePtr createPlane (const Imath::Box2f &b, const Imath::V2i &divisions=Imath::V2i(1))
 Creates a plane at z=0, with the geometric normal facing down positive z.
 
static MeshPrimitivePtr createSphere (float radius, float zMin=-1.0f, float zMax=1.0f, float thetaMax=360.0f, const Imath::V2i &divisions=Imath::V2i(20, 40))
 Creates a sphere.
 
- Static Public Member Functions inherited from IECore::Primitive
static PrimitiveVariableMap loadPrimitiveVariables (const IndexedIO *ioInterface, const IndexedIO::EntryID &name, const IndexedIO::EntryIDList &primVarNames)
 
- Static Public Member Functions inherited from IECore::Object
static void registerType (TypeId typeId, const std::string &typeName, CreatorFn creator, void *data=nullptr)
 Register a new Object-derived type with the system. The specified void* data is passed into the creator function.
 
static bool isType (TypeId typeId)
 Returns true if typeId is a valid registered Object type.
 
static bool isType (const std::string &typeName)
 Returns true if typeName is a valid registered Object type.
 
static bool isAbstractType (TypeId typeId)
 
static bool isAbstractType (const std::string &typeName)
 As above but taking a type name.
 
static ObjectPtr create (TypeId typeId)
 
static ObjectPtr create (const std::string &typeName)
 
static ObjectPtr load (ConstIndexedIOPtr ioInterface, const IndexedIO::EntryID &name)
 
- Static Public Member Functions inherited from IECore::RunTimeTyped
static TypeId staticTypeId ()
 Returns the TypeId for this class, without needing an instance.
 
static const char * staticTypeName ()
 Returns the type name for this class, without needing an instance.
 
static TypeId baseTypeId ()
 
static const char * baseTypeName ()
 
static bool inheritsFrom (TypeId typeId)
 Returns true if this class inherits from the specified type.
 
static bool inheritsFrom (const char *typeName)
 Returns true if this class inherits from the specified type.
 
static bool inheritsFrom (TypeId type, TypeId baseType)
 Returns true if type inherits from baseType.
 
static bool inheritsFrom (const char *typeName, const char *baseTypeName)
 Returns true if typeName inherits from baseTypeName.
 
static TypeId baseTypeId (TypeId typeId)
 Returns the base type of the given type, or InvalidTypeId if no such base exists.
 
static const std::vector< TypeId > & baseTypeIds (TypeId typeId)
 
static const std::set< TypeId > & derivedTypeIds (TypeId typeId)
 
static TypeId typeIdFromTypeName (const char *typeName)
 
static const char * typeNameFromTypeId (TypeId typeId)
 
static void registerType (TypeId derivedTypeId, const char *derivedTypeName, TypeId baseTypeId)
 Allows external modules to register their own type ids.
 

Additional Inherited Members

- Public Types inherited from IECore::Object
typedef ObjectPtr(* CreatorFn) (void *data)
 
- Public Types inherited from IECore::RunTimeTyped
typedef RefCounted BaseClass
 A typedef for the class this class derives from. All RunTimeTyped classes define this typedef.
 
- Public Types inherited from IECore::RefCounted
typedef size_t RefCount
 
- Public Attributes inherited from IECore::Primitive
PrimitiveVariableMap variables
 Variables a stored as a public map for easy manipulation.
 
- Protected Types inherited from IECore::RunTimeTyped
typedef std::map< TypeId, TypeIdBaseTypeRegistryMap
 
typedef std::map< TypeId, std::vector< TypeId > > BaseTypesRegistryMap
 
typedef std::map< TypeId, std::set< TypeId > > DerivedTypesRegistryMap
 
typedef tbb::spin_rw_mutex Mutex
 
typedef std::map< TypeId, std::string > TypeIdsToTypeNamesMap
 
typedef std::map< std::string, TypeIdTypeNamesToTypeIdsMap
 
- Protected Member Functions inherited from IECore::Object
virtual void copyFrom (const Object *other, CopyContext *context)=0
 
 IE_CORE_DECLAREPTR (LoadContext)
 
virtual void save (SaveContext *context) const =0
 
virtual void load (LoadContextPtr context)=0
 
virtual void memoryUsage (MemoryAccumulator &accumulator) const =0
 
- Static Protected Member Functions inherited from IECore::RunTimeTyped
static BaseTypeRegistryMap & baseTypeRegistry ()
 
static DerivedTypesRegistryMap & derivedTypesRegistry ()
 
static BaseTypesRegistryMap & completeBaseTypesRegistry ()
 
static DerivedTypesRegistryMap & completeDerivedTypesRegistry ()
 
static void derivedTypeIdsWalk (TypeId typeId, std::set< TypeId > &)
 
static TypeIdsToTypeNamesMap & typeIdsToTypeNames ()
 
static TypeNamesToTypeIdsMap & typeNamesToTypeIds ()
 
- Static Protected Attributes inherited from IECore::RunTimeTyped
static Mutex g_baseTypeIdsMutex
 
static Mutex g_derivedTypeIdsMutex
 

Detailed Description

The MeshPrimitive represents a collection of polygonal faces. The faces should be planar and may not have holes, but can have concavities. By default a polygon is considered frontfacing if it's vertices wind in an anticlockwise direction from the point of view of the camera - this can be changed at the point of rendering by setting attributes in the Renderer. This definition of winding order is the same as the OpenGL and Maya conventions but the opposite of RenderMan's.

Constructor & Destructor Documentation

IECore::MeshPrimitive::MeshPrimitive ( ConstIntVectorDataPtr  verticesPerFace,
ConstIntVectorDataPtr  vertexIds,
const std::string &  interpolation = "linear",
V3fVectorDataPtr  p = nullptr 
)

Construct a MeshPrimitive. The number of faces specified by verticesPerFace->readable()->size(). Copies of the IntVectorData objects are taken rather than references to the initial data.

Member Function Documentation

static MeshPrimitivePtr IECore::MeshPrimitive::createBox ( const Imath::Box3f &  b)
static

Creates a box mesh.

Todo:
Add subdivisions and texture coordinates.
size_t IECore::MeshPrimitive::variableSize ( PrimitiveVariable::Interpolation  interpolation) const
overridevirtual

Returns the number of values a piece of data must provide for the given interpolation type. Must be implemented in all derived classes.

Implements IECore::Primitive.


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