132 lines
4.9 KiB
C++
132 lines
4.9 KiB
C++
/*
|
|
Open Asset Import Library (assimp)
|
|
----------------------------------------------------------------------
|
|
|
|
Copyright (c) 2006-2021, assimp team
|
|
|
|
|
|
All rights reserved.
|
|
|
|
Redistribution and use of this software in source and binary forms,
|
|
with or without modification, are permitted provided that the
|
|
following conditions are met:
|
|
|
|
* Redistributions of source code must retain the above
|
|
copyright notice, this list of conditions and the
|
|
following disclaimer.
|
|
|
|
* Redistributions in binary form must reproduce the above
|
|
copyright notice, this list of conditions and the
|
|
following disclaimer in the documentation and/or other
|
|
materials provided with the distribution.
|
|
|
|
* Neither the name of the assimp team, nor the names of its
|
|
contributors may be used to endorse or promote products
|
|
derived from this software without specific prior
|
|
written permission of the assimp team.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
----------------------------------------------------------------------
|
|
*/
|
|
|
|
/** 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 "Common/BaseProcess.h"
|
|
|
|
#include <assimp/mesh.h>
|
|
#include <assimp/scene.h>
|
|
|
|
#include <vector>
|
|
#include <utility>
|
|
|
|
#// Forward declarations
|
|
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();
|
|
|
|
// -------------------------------------------------------------------
|
|
/** 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
|