From c068f22329d5cc722622a2183bbb22eef2093df7 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@gmail.com>
Date: Mon, 24 Aug 2026 11:16:07 +0200
Subject: initial import

---
 src/libraries/glm/gtx/transform2.inl | 154 +++++++++++++++++++++++++++++++++++
 1 file changed, 154 insertions(+)
 create mode 100755 src/libraries/glm/gtx/transform2.inl

(limited to 'src/libraries/glm/gtx/transform2.inl')

diff --git a/src/libraries/glm/gtx/transform2.inl b/src/libraries/glm/gtx/transform2.inl
new file mode 100755
index 0000000..aa1c1ed
--- /dev/null
+++ b/src/libraries/glm/gtx/transform2.inl
@@ -0,0 +1,154 @@
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// OpenGL Mathematics Copyright (c) 2005 - 2012 G-Truc Creation (www.g-truc.net)
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Created : 2005-02-28
+// Updated : 2005-04-23
+// Licence : This source is under MIT License
+// File : glm/gtx/transform2.inl
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace glm
+{
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tmat3x3<T> shearX2D(
+		const detail::tmat3x3<T>& m, 
+		T s)
+	{
+		detail::tmat3x3<T> r(1);
+		r[0][1] = s;
+		return m * r;
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tmat3x3<T> shearY2D(
+		const detail::tmat3x3<T>& m, 
+		T s)
+	{
+		detail::tmat3x3<T> r(1);
+		r[1][0] = s;
+		return m * r;
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tmat4x4<T> shearX3D(
+		const detail::tmat4x4<T>& m, 
+		T s, 
+		T t)
+	{
+		detail::tmat4x4<T> r(1);
+		r[1][0] = s;
+		r[2][0] = t;
+		return m * r;
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tmat4x4<T> shearY3D(
+		const detail::tmat4x4<T>& m, 
+		T s, 
+		T t)
+	{
+		detail::tmat4x4<T> r(1);
+		r[0][1] = s;
+		r[2][1] = t;
+		return m * r;
+	}
+
+	template <typename T>     
+	GLM_FUNC_QUALIFIER detail::tmat4x4<T> shearZ3D(
+		const detail::tmat4x4<T>& m, 
+		T s, 
+		T t)
+	{
+		detail::tmat4x4<T> r(1);
+		r[0][2] = s;
+		r[1][2] = t;
+		return m * r;
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tmat3x3<T> reflect2D(
+		const detail::tmat3x3<T>& m, 
+		const detail::tvec3<T>& normal)
+	{
+		detail::tmat3x3<T> r(1);
+		r[0][0] = 1 - 2 * normal.x * normal.x;
+		r[0][1] = -2 * normal.x * normal.y;
+		r[1][0] = -2 * normal.x * normal.y;
+		r[1][1] = 1 - 2 * normal.y * normal.y;
+		return m * r;
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tmat4x4<T> reflect3D(
+		const detail::tmat4x4<T>& m, 
+		const detail::tvec3<T>& normal)
+	{
+		detail::tmat4x4<T> r(1);
+		r[0][0] = 1 - 2 * normal.x * normal.x;
+		r[0][1] = -2 * normal.x * normal.y;
+		r[0][2] = -2 * normal.x * normal.z;
+
+		r[1][0] = -2 * normal.x * normal.y;
+		r[1][1] = 1 - 2 * normal.y * normal.y;
+		r[1][2] = -2 * normal.y * normal.z;
+
+		r[2][0] = -2 * normal.x * normal.z;
+		r[2][1] = -2 * normal.y * normal.z;
+		r[2][2] = 1 - 2 * normal.z * normal.z;
+		return m * r;
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tmat3x3<T> proj2D(
+		const detail::tmat3x3<T>& m, 
+		const detail::tvec3<T>& normal)
+	{
+		detail::tmat3x3<T> r(1);
+		r[0][0] = 1 - normal.x * normal.x;
+		r[0][1] = - normal.x * normal.y;
+		r[1][0] = - normal.x * normal.y;
+		r[1][1] = 1 - normal.y * normal.y;
+		return m * r;
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tmat4x4<T> proj3D(
+		const detail::tmat4x4<T>& m, 
+		const detail::tvec3<T>& normal)
+	{
+		detail::tmat4x4<T> r(1);
+		r[0][0] = 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] = 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] = 1 - normal.z * normal.z;
+		return m * r;
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tmat4x4<T> scaleBias(
+		T scale, 
+		T bias)
+	{
+		detail::tmat4x4<T> result;
+		result[3] = detail::tvec4<T>(detail::tvec3<T>(bias), T(1));
+		result[0][0] = scale;
+		result[1][1] = scale;
+		result[2][2] = scale;
+		return result;
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tmat4x4<T> scaleBias(
+		const detail::tmat4x4<T>& m, 
+		T scale, 
+		T bias)
+	{
+		return m * scaleBias(scale, bias);
+	}
+}//namespace glm
+
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