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Editor/Util/AffineParts.h

@@ -0,0 +1,41 @@
+////////////////////////////////////////////////////////////////////////////
+//
+//  Crytek Engine Source File.
+//  Copyright (C), Crytek Studios, 2002.
+// -------------------------------------------------------------------------
+//  File name:   affineparts.h
+//  Version:     v1.00
+//  Created:     19/8/2002 by Timur.
+//  Compilers:   Visual Studio.NET
+//  Description: 
+// -------------------------------------------------------------------------
+//  History:
+//
+////////////////////////////////////////////////////////////////////////////
+
+#ifndef __affineparts_h__
+#define __affineparts_h__
+
+#if _MSC_VER > 1000
+#pragma once
+#endif
+
+struct AffineParts
+{
+	Vec3 pos;				//!< Translation components
+  Quat rot;				//!< Essential rotation.
+  Quat rotScale;	//!< Stretch rotation.
+  Vec3 scale;			//!< Stretch factors.
+	float fDet;			//!< Sign of determinant.
+
+	/** Decompose matrix to its affnie parts.
+	*/
+	void Decompose( const Matrix44 &mat );
+	
+	/** Decompose matrix to its affnie parts.
+			Assume there`s no stretch rotation.
+	*/
+	void SpectralDecompose( const Matrix44 &mat );
+};
+
+#endif // __affineparts_h__