assimp/code/FixNormalsStep.h

/*
Open Asset Import Library (assimp)
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*/


/** @file Defines a post processing step to fix infacing normals */
#ifndef AI_FIXNORMALSPROCESS_H_INC
#define AI_FIXNORMALSPROCESS_H_INC

#include "BaseProcess.h"

struct aiMesh;

namespace Assimp
{

// ---------------------------------------------------------------------------
/** The FixInfacingNormalsProcess tries to determine whether the normal
 * vectors of an object are facing inwards. In this case they will be
 * flipped.
 */
class FixInfacingNormalsProcess : public BaseProcess {
public:
    FixInfacingNormalsProcess();
    ~FixInfacingNormalsProcess();

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

protected:

    // -------------------------------------------------------------------
    /** Executes the step on the given mesh
     * @param pMesh The mesh to process.
     */
    bool ProcessMesh( aiMesh* pMesh, unsigned int index);
};

} // end of namespace Assimp

#endif // AI_FIXNORMALSPROCESS_H_INC