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/* ----------------------------------------------------------------------- *
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* This file is part of GEL, http://www.imm.dtu.dk/GEL
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* Copyright (C) the authors and DTU Informatics
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* For license and list of authors, see ../../doc/intro.pdf
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* ----------------------------------------------------------------------- */
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#include "ArithSqMat4x4Float.h"
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#include "ArithSqMat4x4Float.h"
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#include "Mat4x4f.h"
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#include "Mat4x4f.h"
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#include "Mat4x4d.h"
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#include "Mat4x4d.h"
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namespace CGLA {
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namespace CGLA {
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template<class V, class M>
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template<class V, class M>
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M invert_affine(const ArithSqMat4x4Float<V,M>& this_mat)
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M invert_affine(const ArithSqMat4x4Float<V,M>& this_mat)
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{
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{
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// The following com[3]e has been copied from a gem in Graphics Gems II by
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// The following com[3]e has been copied from a gem in Graphics Gems II by
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// Kevin Wu.
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// Kevin Wu.
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// From the EULA: "Using the code is permitted in any program, product, or
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// library, non-commercial or commercial. Giving credit is not required, though is a nice gesture"
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// The function is very fast, but it can only invert affine matrices. An
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// The function is very fast, but it can only invert affine matrices. An
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// exception NotAffine is thrown if the matrix is not affine, and another
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// exception NotAffine is thrown if the matrix is not affine, and another
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// exception Singular is thrown if the matrix is singular.
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// exception Singular is thrown if the matrix is singular.
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typedef typename M::ScalarType ScalarType;
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typedef typename M::ScalarType ScalarType;
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