155 lines
3.7 KiB
C++
155 lines
3.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////////////////////////
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// OpenGL Mathematics Copyright (c) 2005 - 2012 G-Truc Creation (www.g-truc.net)
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Created : 2005-02-28
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// Updated : 2005-04-23
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// Licence : This source is under MIT License
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// File : glm/gtx/transform2.inl
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///////////////////////////////////////////////////////////////////////////////////////////////////
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namespace glm
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{
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tmat3x3<T> shearX2D(
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const detail::tmat3x3<T>& m,
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T s)
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{
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detail::tmat3x3<T> r(1);
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r[0][1] = s;
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return m * r;
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tmat3x3<T> shearY2D(
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const detail::tmat3x3<T>& m,
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T s)
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{
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detail::tmat3x3<T> r(1);
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r[1][0] = s;
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return m * r;
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tmat4x4<T> shearX3D(
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const detail::tmat4x4<T>& m,
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T s,
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T t)
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{
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detail::tmat4x4<T> r(1);
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r[1][0] = s;
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r[2][0] = t;
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return m * r;
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tmat4x4<T> shearY3D(
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const detail::tmat4x4<T>& m,
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T s,
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T t)
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{
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detail::tmat4x4<T> r(1);
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r[0][1] = s;
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r[2][1] = t;
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return m * r;
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tmat4x4<T> shearZ3D(
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const detail::tmat4x4<T>& m,
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T s,
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T t)
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{
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detail::tmat4x4<T> r(1);
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r[0][2] = s;
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r[1][2] = t;
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return m * r;
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tmat3x3<T> reflect2D(
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const detail::tmat3x3<T>& m,
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const detail::tvec3<T>& normal)
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{
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detail::tmat3x3<T> r(1);
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r[0][0] = 1 - 2 * normal.x * normal.x;
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r[0][1] = -2 * normal.x * normal.y;
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r[1][0] = -2 * normal.x * normal.y;
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r[1][1] = 1 - 2 * normal.y * normal.y;
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return m * r;
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tmat4x4<T> reflect3D(
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const detail::tmat4x4<T>& m,
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const detail::tvec3<T>& normal)
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{
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detail::tmat4x4<T> r(1);
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r[0][0] = 1 - 2 * normal.x * normal.x;
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r[0][1] = -2 * normal.x * normal.y;
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r[0][2] = -2 * normal.x * normal.z;
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r[1][0] = -2 * normal.x * normal.y;
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r[1][1] = 1 - 2 * normal.y * normal.y;
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r[1][2] = -2 * normal.y * normal.z;
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r[2][0] = -2 * normal.x * normal.z;
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r[2][1] = -2 * normal.y * normal.z;
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r[2][2] = 1 - 2 * normal.z * normal.z;
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return m * r;
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tmat3x3<T> proj2D(
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const detail::tmat3x3<T>& m,
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const detail::tvec3<T>& normal)
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{
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detail::tmat3x3<T> r(1);
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r[0][0] = 1 - normal.x * normal.x;
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r[0][1] = - normal.x * normal.y;
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r[1][0] = - normal.x * normal.y;
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r[1][1] = 1 - normal.y * normal.y;
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return m * r;
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tmat4x4<T> proj3D(
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const detail::tmat4x4<T>& m,
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const detail::tvec3<T>& normal)
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{
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detail::tmat4x4<T> r(1);
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r[0][0] = 1 - normal.x * normal.x;
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r[0][1] = - normal.x * normal.y;
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r[0][2] = - normal.x * normal.z;
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r[1][0] = - normal.x * normal.y;
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r[1][1] = 1 - normal.y * normal.y;
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r[1][2] = - normal.y * normal.z;
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r[2][0] = - normal.x * normal.z;
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r[2][1] = - normal.y * normal.z;
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r[2][2] = 1 - normal.z * normal.z;
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return m * r;
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tmat4x4<T> scaleBias(
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T scale,
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T bias)
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{
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detail::tmat4x4<T> result;
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result[3] = detail::tvec4<T>(detail::tvec3<T>(bias), T(1));
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result[0][0] = scale;
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result[1][1] = scale;
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result[2][2] = scale;
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return result;
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}
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template <typename T>
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GLM_FUNC_QUALIFIER detail::tmat4x4<T> scaleBias(
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const detail::tmat4x4<T>& m,
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T scale,
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T bias)
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{
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return m * scaleBias(scale, bias);
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}
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}//namespace glm
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