110 lines
3.9 KiB
C++
110 lines
3.9 KiB
C++
/*
|
|
Open Asset Import Library (ASSIMP)
|
|
----------------------------------------------------------------------
|
|
|
|
Copyright (c) 2006-2008, ASSIMP Development 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 Development 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.
|
|
|
|
----------------------------------------------------------------------
|
|
*/
|
|
|
|
|
|
/** @file Defines a post processing step to calculate tangents and
|
|
bitangents on all imported meshes.*/
|
|
#ifndef AI_CALCTANGENTSPROCESS_H_INC
|
|
#define AI_CALCTANGENTSPROCESS_H_INC
|
|
|
|
#include "BaseProcess.h"
|
|
|
|
struct aiMesh;
|
|
|
|
namespace Assimp
|
|
{
|
|
|
|
// ---------------------------------------------------------------------------
|
|
/** The CalcTangentsProcess calculates the tangent and bitangent for any vertex
|
|
* of all meshes. It is expected to be run before the JoinVerticesProcess runs
|
|
* because the joining of vertices also considers tangents and bitangents for
|
|
* uniqueness.
|
|
*/
|
|
class CalcTangentsProcess : public BaseProcess
|
|
{
|
|
friend class Importer;
|
|
|
|
protected:
|
|
/** Constructor to be privately used by Importer */
|
|
CalcTangentsProcess();
|
|
|
|
/** Destructor, private as well */
|
|
~CalcTangentsProcess();
|
|
|
|
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:
|
|
|
|
// -------------------------------------------------------------------
|
|
/** Calculates tangents and bitangents for a specific mesh.
|
|
* @param pMesh The mesh to process.
|
|
*/
|
|
bool ProcessMesh( aiMesh* pMesh);
|
|
|
|
// -------------------------------------------------------------------
|
|
/** Executes the post processing step on the given imported data.
|
|
* @param pScene The imported data to work at.
|
|
*/
|
|
void Execute( aiScene* pScene);
|
|
|
|
private:
|
|
|
|
/** Configuration option: maximum smoothing angle, in radians*/
|
|
float configMaxAngle;
|
|
};
|
|
|
|
} // end of namespace Assimp
|
|
|
|
#endif // AI_CALCTANGENTSPROCESS_H_INC
|