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Diffstat (limited to 'Project/glm/gtx/transform2.inl')
| -rw-r--r-- | Project/glm/gtx/transform2.inl | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/Project/glm/gtx/transform2.inl b/Project/glm/gtx/transform2.inl new file mode 100644 index 0000000..2b53198 --- /dev/null +++ b/Project/glm/gtx/transform2.inl @@ -0,0 +1,125 @@ +/// @ref gtx_transform2 + +namespace glm +{ + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER mat<3, 3, T, Q> shearX2D(mat<3, 3, T, Q> const& m, T s) + { + mat<3, 3, T, Q> r(1); + r[1][0] = s; + return m * r; + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER mat<3, 3, T, Q> shearY2D(mat<3, 3, T, Q> const& m, T s) + { + mat<3, 3, T, Q> r(1); + r[0][1] = s; + return m * r; + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER mat<4, 4, T, Q> shearX3D(mat<4, 4, T, Q> const& m, T s, T t) + { + mat<4, 4, T, Q> r(1); + r[0][1] = s; + r[0][2] = t; + return m * r; + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER mat<4, 4, T, Q> shearY3D(mat<4, 4, T, Q> const& m, T s, T t) + { + mat<4, 4, T, Q> r(1); + r[1][0] = s; + r[1][2] = t; + return m * r; + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER mat<4, 4, T, Q> shearZ3D(mat<4, 4, T, Q> const& m, T s, T t) + { + mat<4, 4, T, Q> r(1); + r[2][0] = s; + r[2][1] = t; + return m * r; + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER mat<3, 3, T, Q> reflect2D(mat<3, 3, T, Q> const& m, vec<3, T, Q> const& normal) + { + mat<3, 3, T, Q> r(static_cast<T>(1)); + r[0][0] = static_cast<T>(1) - static_cast<T>(2) * normal.x * normal.x; + r[0][1] = -static_cast<T>(2) * normal.x * normal.y; + r[1][0] = -static_cast<T>(2) * normal.x * normal.y; + r[1][1] = static_cast<T>(1) - static_cast<T>(2) * normal.y * normal.y; + return m * r; + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER mat<4, 4, T, Q> reflect3D(mat<4, 4, T, Q> const& m, vec<3, T, Q> const& normal) + { + mat<4, 4, T, Q> r(static_cast<T>(1)); + r[0][0] = static_cast<T>(1) - static_cast<T>(2) * normal.x * normal.x; + r[0][1] = -static_cast<T>(2) * normal.x * normal.y; + r[0][2] = -static_cast<T>(2) * normal.x * normal.z; + + r[1][0] = -static_cast<T>(2) * normal.x * normal.y; + r[1][1] = static_cast<T>(1) - static_cast<T>(2) * normal.y * normal.y; + r[1][2] = -static_cast<T>(2) * normal.y * normal.z; + + r[2][0] = -static_cast<T>(2) * normal.x * normal.z; + r[2][1] = -static_cast<T>(2) * normal.y * normal.z; + r[2][2] = static_cast<T>(1) - static_cast<T>(2) * normal.z * normal.z; + return m * r; + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER mat<3, 3, T, Q> proj2D( + const mat<3, 3, T, Q>& m, + const vec<3, T, Q>& normal) + { + mat<3, 3, T, Q> r(static_cast<T>(1)); + r[0][0] = static_cast<T>(1) - normal.x * normal.x; + r[0][1] = - normal.x * normal.y; + r[1][0] = - normal.x * normal.y; + r[1][1] = static_cast<T>(1) - normal.y * normal.y; + return m * r; + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER mat<4, 4, T, Q> proj3D( + const mat<4, 4, T, Q>& m, + const vec<3, T, Q>& normal) + { + mat<4, 4, T, Q> r(static_cast<T>(1)); + r[0][0] = static_cast<T>(1) - normal.x * normal.x; + r[0][1] = - normal.x * normal.y; + r[0][2] = - normal.x * normal.z; + r[1][0] = - normal.x * normal.y; + r[1][1] = static_cast<T>(1) - normal.y * normal.y; + r[1][2] = - normal.y * normal.z; + r[2][0] = - normal.x * normal.z; + r[2][1] = - normal.y * normal.z; + r[2][2] = static_cast<T>(1) - normal.z * normal.z; + return m * r; + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER mat<4, 4, T, Q> scaleBias(T scale, T bias) + { + mat<4, 4, T, Q> result; + result[3] = vec<4, T, Q>(vec<3, T, Q>(bias), static_cast<T>(1)); + result[0][0] = scale; + result[1][1] = scale; + result[2][2] = scale; + return result; + } + + template<typename T, qualifier Q> + GLM_FUNC_QUALIFIER mat<4, 4, T, Q> scaleBias(mat<4, 4, T, Q> const& m, T scale, T bias) + { + return m * scaleBias(scale, bias); + } +}//namespace glm + |