From c568f0a8c9f0aef00c770b494ee1ff3a89ab48de Mon Sep 17 00:00:00 2001
From: rtk0c <mail.tianyig@gmail.com>
Date: Sun, 22 May 2022 01:08:24 -0700
Subject: Changeset: 35 Fix missing sources in git submodules after migration
 to PlasticSCM

---
 .../source/test/ext/ext_quaternion_transform.cpp   | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 3rdparty/glm/source/test/ext/ext_quaternion_transform.cpp

(limited to '3rdparty/glm/source/test/ext/ext_quaternion_transform.cpp')

diff --git a/3rdparty/glm/source/test/ext/ext_quaternion_transform.cpp b/3rdparty/glm/source/test/ext/ext_quaternion_transform.cpp
new file mode 100644
index 0000000..fefe88e
--- /dev/null
+++ b/3rdparty/glm/source/test/ext/ext_quaternion_transform.cpp
@@ -0,0 +1,45 @@
+#include <glm/ext/quaternion_transform.hpp>
+#include <glm/ext/quaternion_float.hpp>
+#include <glm/ext/vector_relational.hpp>
+#include <glm/ext/scalar_constants.hpp>
+
+#define GLM_ENABLE_EXPERIMENTAL
+#include <glm/gtx/quaternion.hpp>
+
+static int test_lookAt()
+{
+	int Error(0);
+
+	glm::vec3 eye(0.0f);
+	glm::vec3 center(1.1f, -2.0f, 3.1416f);
+	glm::vec3 up(-0.17f, 7.23f, -1.744f);
+
+	glm::quat test_quat = glm::quatLookAt(glm::normalize(center - eye), up);
+	glm::quat test_mat = glm::conjugate(glm::quat_cast(glm::lookAt(eye, center, up)));
+
+	Error += static_cast<int>(glm::abs(glm::length(test_quat) - 1.0f) > glm::epsilon<float>());
+	Error += static_cast<int>(glm::min(glm::length(test_quat + (-test_mat)), glm::length(test_quat + test_mat)) > glm::epsilon<float>());
+
+	// Test left-handed implementation
+	glm::quat test_quatLH = glm::quatLookAtLH(glm::normalize(center - eye), up);
+	glm::quat test_matLH = glm::conjugate(glm::quat_cast(glm::lookAtLH(eye, center, up)));
+	Error += static_cast<int>(glm::abs(glm::length(test_quatLH) - 1.0f) > glm::epsilon<float>());
+	Error += static_cast<int>(glm::min(glm::length(test_quatLH - test_matLH), glm::length(test_quatLH + test_matLH)) > glm::epsilon<float>());
+ 
+	// Test right-handed implementation
+	glm::quat test_quatRH = glm::quatLookAtRH(glm::normalize(center - eye), up);
+	glm::quat test_matRH = glm::conjugate(glm::quat_cast(glm::lookAtRH(eye, center, up)));
+	Error += static_cast<int>(glm::abs(glm::length(test_quatRH) - 1.0f) > glm::epsilon<float>());
+	Error += static_cast<int>(glm::min(glm::length(test_quatRH - test_matRH), glm::length(test_quatRH + test_matRH)) > glm::epsilon<float>());
+
+	return Error;
+}
+
+int main()
+{
+	int Error = 0;
+
+	Error += test_lookAt();
+
+	return Error;
+}
-- 
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