binaries/assimp-3.1.1/code/DeboneProcess.h

				   /*
Open Asset Import Library (assimp)
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*/

/** Defines a post processing step to limit the number of bones affecting a single vertex. */
#ifndef AI_DEBONEPROCESS_H_INC
#define AI_DEBONEPROCESS_H_INC

#include <vector>
#include <utility>
#include "BaseProcess.h"

#include "../include/assimp/mesh.h"
#include "../include/assimp/scene.h"

class DeboneTest;

namespace Assimp
{

#if (!defined AI_DEBONE_THRESHOLD)
#	define AI_DEBONE_THRESHOLD	1.0f
#endif // !! AI_DEBONE_THRESHOLD

// ---------------------------------------------------------------------------
/** This post processing step removes bones nearly losslessly or according to 
* a configured threshold. In order to remove the bone, the primitives affected by
* the bone are split from the mesh. The split off (new) mesh is boneless. At any 
* point in time, bones without affect upon a given mesh are to be removed.
*/
class DeboneProcess : public BaseProcess
{
public:

	DeboneProcess();
	~DeboneProcess();

public:
	// -------------------------------------------------------------------
	/** Returns whether the processing step is present in the given flag.
	* @param pFlags The processing flags the importer was called with. 
	*   A bitwise combination of #aiPostProcessSteps.
	* @return true if the process is present in this flag fields, 
	*   false if not.
	*/
	bool IsActive( unsigned int pFlags) const;

	// -------------------------------------------------------------------
	/** Called prior to ExecuteOnScene().
	* The function is a request to the process to update its configuration
	* basing on the Importer's configuration property list.
	*/
	void SetupProperties(const Importer* pImp);

protected:
		
	// -------------------------------------------------------------------
	/** Executes the post processing step on the given imported data.
	* At the moment a process is not supposed to fail.
	* @param pScene The imported data to work at.
	*/
	void Execute( aiScene* pScene);

	// -------------------------------------------------------------------
	/** Counts bones total/removable in a given mesh.
	* @param pMesh The mesh to process.
	*/
	bool ConsiderMesh( const aiMesh* pMesh);

	/// Splits the given mesh by bone count.
	/// @param pMesh the Mesh to split. Is not changed at all, but might be superfluous in case it was split.
	/// @param poNewMeshes Array of submeshes created in the process. Empty if splitting was not necessary.
	void SplitMesh(const aiMesh* pMesh, std::vector< std::pair< aiMesh*,const aiBone* > >& poNewMeshes) const;

	/// Recursively updates the node's mesh list to account for the changed mesh list
	void UpdateNode(aiNode* pNode) const;

	// -------------------------------------------------------------------
	// Apply transformation to a mesh 
	void ApplyTransform(aiMesh* mesh, const aiMatrix4x4& mat)const;

public:
	/** Number of bones present in the scene. */
	unsigned int mNumBones;
	unsigned int mNumBonesCanDoWithout;

	float mThreshold;
	bool mAllOrNone;

	/// Per mesh index: Array of indices of the new submeshes.
	std::vector< std::vector< std::pair< unsigned int,aiNode* > > > mSubMeshIndices;
};

} // end of namespace Assimp

#endif // AI_DEBONEPROCESS_H_INC