/*
Open Asset Import Library (assimp)
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  following disclaimer.

* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the
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* Neither the name of the assimp team, nor the names of its
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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*/

/** @file Defines a post processing step to compute face normals for all loaded faces*/
#ifndef AI_GENFACENORMALPROCESS_H_INC
#define AI_GENFACENORMALPROCESS_H_INC

#include "BaseProcess.h"
#include <assimp/mesh.h>

namespace Assimp
{

// ---------------------------------------------------------------------------
/** The GenFaceNormalsProcess computes face normals for all faces of all meshes
*/
class ASSIMP_API_WINONLY GenFaceNormalsProcess : public BaseProcess
{
public:

    GenFaceNormalsProcess();
    ~GenFaceNormalsProcess();

public:
    // -------------------------------------------------------------------
    /** Returns whether the processing step is present in the given flag field.
    * @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;

    // -------------------------------------------------------------------
    /** 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);


private:
    bool GenMeshFaceNormals (aiMesh* pcMesh);
};

} // end of namespace Assimp

#endif // !!AI_GENFACENORMALPROCESS_H_INC