65 lines
2.8 KiB
C++
65 lines
2.8 KiB
C++
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/*
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* ICE / OPCODE - Optimized Collision Detection
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* http://www.codercorner.com/Opcode.htm
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*
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* Copyright (c) 2001-2008 Pierre Terdiman, pierre@codercorner.com
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Contains code for 3x3 matrices.
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* \file IceMatrix3x3.cpp
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* \author Pierre Terdiman
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* \date April, 4, 2000
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*/
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* 3x3 matrix.
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* DirectX-compliant, ie row-column order, ie m[Row][Col].
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* Same as:
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* m11 m12 m13 first row.
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* m21 m22 m23 second row.
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* m31 m32 m33 third row.
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* Stored in memory as m11 m12 m13 m21...
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*
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* Multiplication rules:
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*
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* [x'y'z'] = [xyz][M]
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*
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* x' = x*m11 + y*m21 + z*m31
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* y' = x*m12 + y*m22 + z*m32
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* z' = x*m13 + y*m23 + z*m33
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*
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* \class Matrix3x3
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* \author Pierre Terdiman
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* \version 1.0
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*/
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Precompiled Header
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#include "Stdafx.h"
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using namespace Opcode;
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// Cast operator
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Matrix3x3::operator Matrix4x4() const
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{
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return Matrix4x4(
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m[0][0], m[0][1], m[0][2], 0.0f,
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m[1][0], m[1][1], m[1][2], 0.0f,
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m[2][0], m[2][1], m[2][2], 0.0f,
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0.0f, 0.0f, 0.0f, 1.0f);
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}
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