65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
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/** @file Defines a post processing step to join identical vertices on all imported meshes.*/
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#ifndef AI_JOINVERTICESPROCESS_H_INC
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#define AI_CALCTANGENTSPROCESS_H_INC
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#include "BaseProcess.h"
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#include "../include/aiTypes.h"
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struct aiMesh;
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namespace Assimp
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{
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// ---------------------------------------------------------------------------
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/** The JoinVerticesProcess unites identical vertices in all imported meshes.
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* By default the importer returns meshes where each face addressed its own
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* set of vertices even if that means that identical vertices are stored multiple
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* times. The JoinVerticesProcess finds these identical vertices and
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* erases all but one of the copies. This usually reduces the number of vertices
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* in a mesh by a serious amount and is the standard form to render a mesh.
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*/
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class JoinVerticesProcess : public BaseProcess
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{
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friend class Importer;
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protected:
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/** Constructor to be privately used by Importer */
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JoinVerticesProcess();
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/** Destructor, private as well */
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~JoinVerticesProcess();
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public:
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// -------------------------------------------------------------------
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/** Returns whether the processing step is present in the given flag field.
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* @param pFlags The processing flags the importer was called with. A bitwise
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* combination of #aiPostProcessSteps.
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* @return true if the process is present in this flag fields, false if not.
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*/
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bool IsActive( unsigned int pFlags) const;
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// -------------------------------------------------------------------
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/** Executes the post processing step on the given imported data.
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* At the moment a process is not supposed to fail.
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* @param pScene The imported data to work at.
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*/
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void Execute( aiScene* pScene);
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protected:
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// -------------------------------------------------------------------
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/** Unites identical vertices in the given mesh.
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* @param pMesh The mesh to process.
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*/
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void ProcessMesh( aiMesh* pMesh);
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/** Little helper function to calculate the quadratic difference of two colours. */
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float GetColorDifference( const aiColor4D& pColor1, const aiColor4D& pColor2) const
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{
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aiColor4D c( pColor1.r - pColor2.r, pColor1.g - pColor2.g, pColor1.b - pColor2.b, pColor1.a - pColor2.a);
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return c.r*c.r + c.g*c.g + c.b*c.b + c.a*c.a;
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}
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};
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} // end of namespace Assimp
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#endif // AI_CALCTANGENTSPROCESS_H_INC
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