diff options
Diffstat (limited to 'src/include/glm/gtx/transform2.inl')
| -rw-r--r-- | src/include/glm/gtx/transform2.inl | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/src/include/glm/gtx/transform2.inl b/src/include/glm/gtx/transform2.inl new file mode 100644 index 0000000..4664000 --- /dev/null +++ b/src/include/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
+
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