IRenderMeshCache Class Reference

#include <RTMax.h>

Class Description

This class maintains a list of the meshes and RenderMeshes used per instance. It acts as a factory class.

This is useful for Materials where a single material could be applied to multiple nodes, so a cache is needed so the material can pull the correct mesh data

Inheritance diagram for IRenderMeshCache:

Public Member Functions
virtual void	SetMeshType (IRenderMesh::MeshType type)=0
	Set the type of the mesh cache to maintain;. More...
virtual int	SetCachedMNMesh (MNMesh *mnMesh, INode *node, TimeValue time, bool &meshChanged)=0
	Fill up the cache with data from 3ds Max. More...
virtual int	SetCachedMesh (Mesh *mesh, INode *node, TimeValue time, bool &meshChanged)=0
	Fill up the cache with data from 3ds Max. More...
virtual int	GetCacheSize ()=0
	Get the number of cached mesh. More...
virtual IRenderMesh *	GetActiveRenderMesh (int index)=0
	Get the active render mesh. More...
virtual INode *	GetActiveNode (int index)=0
virtual Mesh *	GetActiveMesh (int index)=0
virtual void	SetDirectXVersion (UINT version)=0
virtual	~IRenderMeshCache ()
	default destructor More...
virtual void	Release ()=0
	Used to release any data stored by the cache. More...
virtual void	DeleteRenderMeshCache (INode *node)=0
	Used to delete the cache for a specific node. More...

Static Public Member Functions
static DllExport IRenderMeshCache *	GetRenderMeshCache ()
	Exported function to access the IRenderMeshCache interface. More...
Static Public Member Functions inherited from MaxHeapOperators
static UtilExport void *	operator new (size_t size)
	Standard new operator used to allocate objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e)
	Standard new operator used to allocate objects if there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new (size_t size, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate objects that takes the type of memory, filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new (size_t size, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate arrays of objects. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void	operator delete (void *ptr)
	Standard delete operator used to deallocate an object If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an object If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete (void *ptr, const char *filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, int block_type, const char *filename, int line)
	Delete operator used to deallocate an object that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e, const char *filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete (void *ptr, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, int block_type, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, void *placement_ptr)
	Placement new operator. More...
static UtilExport void	operator delete (void *ptr, void *placement_ptr)
	Placement delete operator. More...

Constructor & Destructor Documentation

virtual ~IRenderMeshCache ( )

inlinevirtual

default destructor

{}

Member Function Documentation

static DllExport IRenderMeshCache* GetRenderMeshCache ( )

static

Exported function to access the IRenderMeshCache interface.

virtual void SetMeshType ( IRenderMesh::MeshType  type )

pure virtual

Set the type of the mesh cache to maintain;.

Parameters

type	Set the type of object to hold. This can be either a mesh or a quad.

virtual int SetCachedMNMesh ( MNMesh *  mnMesh, INode *  node, TimeValue  time, bool &  meshChanged  )

pure virtual

Fill up the cache with data from 3ds Max.

This method needs to be called when the node has actually changed. In 3ds Max 8 and before you could call this method at any time and the method would attempt to cache and maintain the data. However this would not work correctly with a MNMesh type object. Now the method expects to only update itself when the object changes. This is easily achieved by only calling this method when IStdDualVSCallback::InitValid() is called. To simply get the cache position for the node you can call this method with a NULL mnMesh pointer.

Parameters

*mnMesh	The MNMesh to store in the cache. If this is NULL the system will return the cache entry only
*node	The node to store in the cache
time	The time to use in any evaluations
&meshChanged	If the mesh is different to that in the cache, this specifies the case.

Returns

The position in the cache of the mesh/node combo

virtual int SetCachedMesh ( Mesh *  mesh, INode *  node, TimeValue  time, bool &  meshChanged  )

pure virtual

Fill up the cache with data from 3ds Max.

This method needs to be called when the node has actually changed. In 3ds Max 8 and before you could call this method at any time and the method would attempt to cache and maintain the data. However this would not work correctly with a MNMesh type object. Now the method expects to only update itself when the object changes. This is easily achieved by only calling this method when IStdDualVSCallback::InitValid() is called. To simply get the cache position for the node you can call this method with a NULL mesh pointer.

Parameters

*mesh	The mesh to store in the cache. If this is NULL the system will return the cache entry only
*node	The node to store in the cache
time	The time to use in any evaluations
&meshChanged	If the mesh is different to that in the cache, this specifies the case.

Returns

The position in the cache of the mesh/node combo

virtual int GetCacheSize ( )

pure virtual

Get the number of cached mesh.

Returns

The number of cached mesh

virtual IRenderMesh* GetActiveRenderMesh ( int  index )

pure virtual

Get the active render mesh.

Parameters

index

The index of the mesh to retrieve

Returns

The IRenderMesh based on the index provided

virtual INode* GetActiveNode ( int  index )

pure virtual

Parameters

index

Get the node for the current cached object

Returns

The INode for the current cache

virtual Mesh* GetActiveMesh ( int  index )

pure virtual

Parameters

index

Get the mesh for the current cached object

Returns

The INode for the current cache

virtual void SetDirectXVersion ( UINT  version )

pure virtual

virtual void Release ( )

pure virtual

Used to release any data stored by the cache.

virtual void DeleteRenderMeshCache ( INode *  node )

pure virtual

Used to delete the cache for a specific node.