added vscode config

Feature/engine units to metric

.vscode/launch.json

@@ -0,0 +1,24 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": " Unit Tests (Debug)",
+            "type": "lldb",
+            "request": "launch",
+            "program": "${workspaceRoot}/out/Debug/unit_tests",
+            "args": [],
+            "cwd": "${workspaceRoot}"
+        },
+        {
+            "name": " Unit Tests (Release)",
+            "type": "lldb",
+            "request": "launch",
+            "program": "${workspaceRoot}/out/Release/unit_tests",
+            "args": [],
+            "cwd": "${workspaceRoot}"
+        }
+    ]
+}

examples/CMakeLists.txt

@@ -29,7 +29,7 @@ set_target_properties(
 find_package(OpenGL)
 find_package(GLEW REQUIRED)
 find_package(glfw3 CONFIG REQUIRED)
-target_link_libraries(example_glfw3 PRIVATE omath::omath GLEW::GLEW glfw OpenGL::OpenGL)
+target_link_libraries(example_glfw3 PRIVATE omath::omath GLEW::GLEW glfw OpenGL::GL)
 
 if(OMATH_ENABLE_VALGRIND)
     omath_setup_valgrind(example_projection_matrix_builder)

include/omath/collision/line_tracer.hpp

@@ -8,43 +8,96 @@
 
 namespace omath::collision
 {
-    class Ray
+    template<class T = Vector3<float>>
+    class Ray final
     {
     public:
-        Vector3<float> start;
-        Vector3<float> end;
+        using VectorType = T;
+        VectorType start;
+        VectorType end;
         bool infinite_length = false;
 
         [[nodiscard]]
-        Vector3<float> direction_vector() const noexcept;
+        constexpr VectorType direction_vector() const noexcept
+        {
+            return end - start;
+        }
 
         [[nodiscard]]
-        Vector3<float> direction_vector_normalized() const noexcept;
+        constexpr VectorType direction_vector_normalized() const noexcept
+        {
+            return direction_vector().normalized();
+        }
     };
-    class LineTracer
+
+    template<class RayType = Ray<>>
+    class LineTracer final
     {
+        using TriangleType = Triangle<typename RayType::VectorType>;
+
     public:
         LineTracer() = delete;
 
         [[nodiscard]]
-        static bool can_trace_line(const Ray& ray, const Triangle<Vector3<float>>& triangle) noexcept;
+        constexpr static bool can_trace_line(const RayType& ray, const TriangleType& triangle) noexcept
+        {
+            return get_ray_hit_point(ray, triangle) == ray.end;
+        }
 
         // Realization of Möller–Trumbore intersection algorithm
         // https://en.wikipedia.org/wiki/M%C3%B6ller%E2%80%93Trumbore_intersection_algorithm
         [[nodiscard]]
-        static Vector3<float> get_ray_hit_point(const Ray& ray, const Triangle<Vector3<float>>& triangle) noexcept;
+        constexpr static auto get_ray_hit_point(const RayType& ray, const TriangleType& triangle) noexcept
+        {
+            constexpr float k_epsilon = std::numeric_limits<float>::epsilon();
+
+            const auto side_a = triangle.side_a_vector();
+            const auto side_b = triangle.side_b_vector();
+
+            const auto ray_dir = ray.direction_vector();
+
+            const auto p = ray_dir.cross(side_b);
+            const auto det = side_a.dot(p);
+
+            if (std::abs(det) < k_epsilon)
+                return ray.end;
+
+            const auto inv_det = 1 / det;
+            const auto t = ray.start - triangle.m_vertex2;
+            const auto u = t.dot(p) * inv_det;
+
+            if ((u < 0 && std::abs(u) > k_epsilon) || (u > 1 && std::abs(u - 1) > k_epsilon))
+                return ray.end;
+
+            const auto q = t.cross(side_a);
+            // ReSharper disable once CppTooWideScopeInitStatement
+            const auto v = ray_dir.dot(q) * inv_det;
+
+            if ((v < 0 && std::abs(v) > k_epsilon) || (u + v > 1 && std::abs(u + v - 1) > k_epsilon))
+                return ray.end;
+
+            const auto t_hit = side_b.dot(q) * inv_det;
+
+            if (ray.infinite_length && t_hit <= k_epsilon)
+                return ray.end;
+
+            if (t_hit <= k_epsilon || t_hit > 1 - k_epsilon)
+                return ray.end;
+
+            return ray.start + ray_dir * t_hit;
+        }
 
         template<class MeshType>
         [[nodiscard]]
-        static Vector3<float> get_ray_hit_point(const Ray& ray, const MeshType& mesh) noexcept
+        constexpr static auto get_ray_hit_point(const RayType& ray, const MeshType& mesh) noexcept
         {
-            Vector3<float> mesh_hit = ray.end;
+            auto mesh_hit = ray.end;
 
-            auto begin = mesh.m_element_buffer_object.cbegin();
-            auto end = mesh.m_element_buffer_object.cend();
+            const auto begin = mesh.m_element_buffer_object.cbegin();
+            const auto end = mesh.m_element_buffer_object.cend();
             for (auto current = begin; current < end; current = std::next(current))
             {
-                auto face = mesh.make_face_in_world_space(current);
+                const auto face = mesh.make_face_in_world_space(current);
 
                 auto ray_stop_point = get_ray_hit_point(ray, face);
                 if (ray_stop_point.distance_to(ray.start) < mesh_hit.distance_to(ray.start))

include/omath/collision/simplex.hpp

@@ -130,7 +130,7 @@ namespace omath::collision
 
         template<class V>
         [[nodiscard]]
-        static constexpr bool near_zero(const V& v, const float eps = 1e-7f)
+        static constexpr bool near_zero(const V& v, const float eps = 1e-7f) noexcept
         {
             return v.dot(v) <= eps * eps;
         }
@@ -146,7 +146,7 @@ namespace omath::collision
         }
 
         [[nodiscard]]
-        constexpr bool handle_line(VectorType& direction)
+        constexpr bool handle_line(VectorType& direction) noexcept
         {
             const auto& a = m_points[0];
             const auto& b = m_points[1];
@@ -158,21 +158,11 @@ namespace omath::collision
             {
                 // ReSharper disable once CppTooWideScopeInitStatement
                 auto n = ab.cross(ao); // Needed to valid handle collision if colliders placed at same origin pos
-                if (near_zero(n))
-                {
-                    // collinear: origin lies on ray AB (often on segment), pick any perp to escape
-                    direction = any_perp(ab);
-                }
-                else
-                {
-                    direction = n.cross(ab);
-                }
-            }
-            else
-            {
-                *this = {a};
-                direction = ao;
+                direction = near_zero(n) ? any_perp(ab) : n.cross(ab);
+                return false;
             }
+            *this = {a};
+            direction = ao;
             return false;
         }
 

include/omath/engines/frostbite_engine/formulas.hpp

@@ -23,4 +23,52 @@ namespace omath::frostbite_engine
 
     [[nodiscard]]
     Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
-} // namespace omath::unity_engine
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_centimeters(const FloatingType& units)
+    {
+        return units / static_cast<FloatingType>(100);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_meters(const FloatingType& units)
+    {
+        return units;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_kilometers(const FloatingType& units)
+    {
+        return units_to_meters(units) / static_cast<FloatingType>(1000);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType centimeters_to_units(const FloatingType& centimeters)
+    {
+        return centimeters * static_cast<FloatingType>(100);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType meters_to_units(const FloatingType& meters)
+    {
+        return meters;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType kilometers_to_units(const FloatingType& kilometers)
+    {
+        return meters_to_units(kilometers * static_cast<FloatingType>(1000));
+    }
+} // namespace omath::frostbite_engine

include/omath/engines/iw_engine/formulas.hpp

@@ -23,4 +23,54 @@ namespace omath::iw_engine
 
     [[nodiscard]]
     Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_centimeters(const FloatingType& units)
+    {
+        constexpr auto centimeter_in_unit = static_cast<FloatingType>(2.54);
+        return units * centimeter_in_unit;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_meters(const FloatingType& units)
+    {
+        return units_to_centimeters(units) / static_cast<FloatingType>(100);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_kilometers(const FloatingType& units)
+    {
+        return units_to_meters(units) / static_cast<FloatingType>(1000);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType centimeters_to_units(const FloatingType& centimeters)
+    {
+        constexpr auto centimeter_in_unit = static_cast<FloatingType>(2.54);
+        return centimeters / centimeter_in_unit;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType meters_to_units(const FloatingType& meters)
+    {
+        return centimeters_to_units(meters * static_cast<FloatingType>(100));
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType kilometers_to_units(const FloatingType& kilometers)
+    {
+        return meters_to_units(kilometers * static_cast<FloatingType>(1000));
+    }
 } // namespace omath::iw_engine

include/omath/engines/opengl_engine/formulas.hpp

@@ -4,7 +4,6 @@
 #pragma once
 #include "omath/engines/opengl_engine/constants.hpp"
 
-
 namespace omath::opengl_engine
 {
     [[nodiscard]]
@@ -23,4 +22,52 @@ namespace omath::opengl_engine
 
     [[nodiscard]]
     Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_centimeters(const FloatingType& units)
+    {
+        return units / static_cast<FloatingType>(100);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_meters(const FloatingType& units)
+    {
+        return units;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_kilometers(const FloatingType& units)
+    {
+        return units_to_meters(units) / static_cast<FloatingType>(1000);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType centimeters_to_units(const FloatingType& centimeters)
+    {
+        return centimeters * static_cast<FloatingType>(100);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType meters_to_units(const FloatingType& meters)
+    {
+        return meters;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType kilometers_to_units(const FloatingType& kilometers)
+    {
+        return meters_to_units(kilometers * static_cast<FloatingType>(1000));
+    }
 } // namespace omath::opengl_engine

include/omath/engines/source_engine/formulas.hpp

@@ -22,4 +22,54 @@ namespace omath::source_engine
 
     [[nodiscard]]
     Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_centimeters(const FloatingType& units)
+    {
+        constexpr auto centimeter_in_unit = static_cast<FloatingType>(2.54);
+        return units * centimeter_in_unit;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_meters(const FloatingType& units)
+    {
+        return units_to_centimeters(units) / static_cast<FloatingType>(100);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_kilometers(const FloatingType& units)
+    {
+        return units_to_meters(units) / static_cast<FloatingType>(1000);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType centimeters_to_units(const FloatingType& centimeters)
+    {
+        constexpr auto centimeter_in_unit = static_cast<FloatingType>(2.54);
+        return centimeters / centimeter_in_unit;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType meters_to_units(const FloatingType& meters)
+    {
+        return centimeters_to_units(meters * static_cast<FloatingType>(100));
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType kilometers_to_units(const FloatingType& kilometers)
+    {
+        return meters_to_units(kilometers * static_cast<FloatingType>(1000));
+    }
 } // namespace omath::source_engine

include/omath/engines/unity_engine/formulas.hpp

@@ -23,4 +23,52 @@ namespace omath::unity_engine
 
     [[nodiscard]]
     Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_centimeters(const FloatingType& units)
+    {
+        return units / static_cast<FloatingType>(100);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_meters(const FloatingType& units)
+    {
+        return units;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_kilometers(const FloatingType& units)
+    {
+        return units_to_meters(units) / static_cast<FloatingType>(1000);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType centimeters_to_units(const FloatingType& centimeters)
+    {
+        return centimeters * static_cast<FloatingType>(100);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType meters_to_units(const FloatingType& meters)
+    {
+        return meters;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType kilometers_to_units(const FloatingType& kilometers)
+    {
+        return meters_to_units(kilometers * static_cast<FloatingType>(1000));
+    }
 } // namespace omath::unity_engine

include/omath/engines/unreal_engine/formulas.hpp

@@ -23,4 +23,52 @@ namespace omath::unreal_engine
 
     [[nodiscard]]
     Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far) noexcept;
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_centimeters(const FloatingType& units)
+    {
+        return units;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_meters(const FloatingType& units)
+    {
+        return units / static_cast<FloatingType>(100);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType units_to_kilometers(const FloatingType& units)
+    {
+        return units_to_meters(units) / static_cast<FloatingType>(1000);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType centimeters_to_units(const FloatingType& centimeters)
+    {
+        return centimeters;
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType meters_to_units(const FloatingType& meters)
+    {
+        return meters * static_cast<FloatingType>(100);
+    }
+
+    template<class FloatingType>
+    requires std::is_floating_point_v<FloatingType>
+    [[nodiscard]]
+    constexpr FloatingType kilometers_to_units(const FloatingType& kilometers)
+    {
+        return meters_to_units(kilometers * static_cast<FloatingType>(1000));
+    }
 } // namespace omath::unreal_engine

source/collision/line_tracer.cpp

@@ -1,61 +0,0 @@
-//
-// Created by Orange on 11/13/2024.
-//
-#include "omath/collision/line_tracer.hpp"
-
-namespace omath::collision
-{
-    bool LineTracer::can_trace_line(const Ray& ray, const Triangle<Vector3<float>>& triangle) noexcept
-    {
-        return get_ray_hit_point(ray, triangle) == ray.end;
-    }
-    Vector3<float> Ray::direction_vector() const noexcept
-    {
-        return end - start;
-    }
-
-    Vector3<float> Ray::direction_vector_normalized() const noexcept
-    {
-        return direction_vector().normalized();
-    }
-
-    Vector3<float> LineTracer::get_ray_hit_point(const Ray& ray, const Triangle<Vector3<float>>& triangle) noexcept
-    {
-        constexpr float k_epsilon = std::numeric_limits<float>::epsilon();
-
-        const auto side_a = triangle.side_a_vector();
-        const auto side_b = triangle.side_b_vector();
-
-        const auto ray_dir = ray.direction_vector();
-
-        const auto p = ray_dir.cross(side_b);
-        const auto det = side_a.dot(p);
-
-        if (std::abs(det) < k_epsilon)
-            return ray.end;
-
-        const auto inv_det = 1.0f / det;
-        const auto t = ray.start - triangle.m_vertex2;
-        const auto u = t.dot(p) * inv_det;
-
-        if ((u < 0 && std::abs(u) > k_epsilon) || (u > 1 && std::abs(u - 1) > k_epsilon))
-            return ray.end;
-
-        const auto q = t.cross(side_a);
-        // ReSharper disable once CppTooWideScopeInitStatement
-        const auto v = ray_dir.dot(q) * inv_det;
-
-        if ((v < 0 && std::abs(v) > k_epsilon) || (u + v > 1 && std::abs(u + v - 1) > k_epsilon))
-            return ray.end;
-
-        const auto t_hit = side_b.dot(q) * inv_det;
-
-        if (ray.infinite_length && t_hit <= k_epsilon)
-            return ray.end;
-
-        if (t_hit <= k_epsilon || t_hit > 1.0f - k_epsilon)
-            return ray.end;
-
-        return ray.start + ray_dir * t_hit;
-    }
-} // namespace omath::collision

tests/engines/unit_test_frostbite_engine.cpp

@@ -8,6 +8,125 @@
 #include <print>
 #include <random>
 
+TEST(unit_test_frostbite_engine, UnitsToCentimeters_BasicValues)
+{
+    EXPECT_FLOAT_EQ(omath::frostbite_engine::units_to_centimeters(0.0f), 0.0f);
+    EXPECT_FLOAT_EQ(omath::frostbite_engine::units_to_centimeters(1.0f), 0.01f);
+    EXPECT_FLOAT_EQ(omath::frostbite_engine::units_to_centimeters(100.0f), 1.0f);
+    EXPECT_FLOAT_EQ(omath::frostbite_engine::units_to_centimeters(-250.0f), -2.5f);
+}
+
+TEST(unit_test_frostbite_engine, UnitsToMeters_BasicValues)
+{
+    EXPECT_DOUBLE_EQ(omath::frostbite_engine::units_to_meters(0.0), 0.0);
+    EXPECT_DOUBLE_EQ(omath::frostbite_engine::units_to_meters(1.0), 1.0);
+    EXPECT_DOUBLE_EQ(omath::frostbite_engine::units_to_meters(123.456), 123.456);
+    EXPECT_DOUBLE_EQ(omath::frostbite_engine::units_to_meters(-42.0), -42.0);
+}
+
+TEST(unit_test_frostbite_engine, UnitsToKilometers_BasicValues)
+{
+    EXPECT_NEAR(omath::frostbite_engine::units_to_kilometers(0.0), 0.0, 1e-15);
+    EXPECT_NEAR(omath::frostbite_engine::units_to_kilometers(1.0), 0.001, 1e-15);
+    EXPECT_NEAR(omath::frostbite_engine::units_to_kilometers(1000.0), 1.0, 1e-12);
+    EXPECT_NEAR(omath::frostbite_engine::units_to_kilometers(-2500.0), -2.5, 1e-12);
+}
+
+TEST(unit_test_frostbite_engine, CentimetersToUnits_BasicValues)
+{
+    EXPECT_FLOAT_EQ(omath::frostbite_engine::centimeters_to_units(0.0f), 0.0f);
+    EXPECT_FLOAT_EQ(omath::frostbite_engine::centimeters_to_units(0.01f), 1.0f);
+    EXPECT_FLOAT_EQ(omath::frostbite_engine::centimeters_to_units(1.0f), 100.0f);
+    EXPECT_FLOAT_EQ(omath::frostbite_engine::centimeters_to_units(-2.5f), -250.0f);
+}
+
+TEST(unit_test_frostbite_engine, MetersToUnits_BasicValues)
+{
+    EXPECT_DOUBLE_EQ(omath::frostbite_engine::meters_to_units(0.0), 0.0);
+    EXPECT_DOUBLE_EQ(omath::frostbite_engine::meters_to_units(1.0), 1.0);
+    EXPECT_DOUBLE_EQ(omath::frostbite_engine::meters_to_units(123.456), 123.456);
+    EXPECT_DOUBLE_EQ(omath::frostbite_engine::meters_to_units(-42.0), -42.0);
+}
+
+TEST(unit_test_frostbite_engine, KilometersToUnits_BasicValues)
+{
+    EXPECT_NEAR(omath::frostbite_engine::kilometers_to_units(0.0), 0.0, 1e-12);
+    EXPECT_NEAR(omath::frostbite_engine::kilometers_to_units(0.001), 1.0, 1e-12);
+    EXPECT_NEAR(omath::frostbite_engine::kilometers_to_units(1.0), 1000.0, 1e-9);
+    EXPECT_NEAR(omath::frostbite_engine::kilometers_to_units(-2.5), -2500.0, 1e-9);
+}
+
+TEST(unit_test_frostbite_engine, RoundTrip_UnitsCentimeters)
+{
+    constexpr float units_f = 12345.678f;
+    const auto cm_f = omath::frostbite_engine::units_to_centimeters(units_f);
+    const auto units_f_back = omath::frostbite_engine::centimeters_to_units(cm_f);
+    EXPECT_NEAR(units_f_back, units_f, 1e-3f);
+
+    constexpr double units_d = -987654.321;
+    const auto cm_d = omath::frostbite_engine::units_to_centimeters(units_d);
+    const auto units_d_back = omath::frostbite_engine::centimeters_to_units(cm_d);
+    EXPECT_NEAR(units_d_back, units_d, 1e-9);
+}
+
+TEST(unit_test_frostbite_engine, RoundTrip_UnitsMeters)
+{
+    constexpr float units_f = 5432.125f;
+    constexpr auto m_f = omath::frostbite_engine::units_to_meters(units_f);
+    constexpr auto units_f_back = omath::frostbite_engine::meters_to_units(m_f);
+    EXPECT_FLOAT_EQ(units_f_back, units_f);
+
+    constexpr double units_d = -123456.789;
+    constexpr auto m_d = omath::frostbite_engine::units_to_meters(units_d);
+    constexpr auto units_d_back = omath::frostbite_engine::meters_to_units(m_d);
+    EXPECT_DOUBLE_EQ(units_d_back, units_d);
+}
+
+TEST(unit_test_frostbite_engine, RoundTrip_UnitsKilometers)
+{
+    constexpr float units_f = 100000.0f;
+    constexpr auto km_f = omath::frostbite_engine::units_to_kilometers(units_f);
+    constexpr auto units_f_back = omath::frostbite_engine::kilometers_to_units(km_f);
+    EXPECT_NEAR(units_f_back, units_f, 1e-2f);
+
+    constexpr double units_d = -7654321.123;
+    constexpr auto km_d = omath::frostbite_engine::units_to_kilometers(units_d);
+    constexpr auto units_d_back = omath::frostbite_engine::kilometers_to_units(km_d);
+    EXPECT_NEAR(units_d_back, units_d, 1e-6);
+}
+
+TEST(unit_test_frostbite_engine, ConversionChainConsistency)
+{
+    const double units = 424242.42;
+
+    const auto cm_direct = omath::frostbite_engine::units_to_centimeters(units);
+    const auto cm_via_units = units / 100.0;
+    EXPECT_NEAR(cm_direct, cm_via_units, 1e-12);
+
+    const auto km_direct = omath::frostbite_engine::units_to_kilometers(units);
+    const auto km_via_meters = omath::frostbite_engine::units_to_meters(units) / 1000.0;
+    EXPECT_NEAR(km_direct, km_via_meters, 1e-12);
+}
+
+TEST(unit_test_frostbite_engine, SupportsFloatAndDouble)
+{
+    static_assert(std::is_same_v<decltype(omath::frostbite_engine::units_to_centimeters(1.0f)), float>);
+    static_assert(std::is_same_v<decltype(omath::frostbite_engine::units_to_centimeters(1.0)), double>);
+    static_assert(std::is_same_v<decltype(omath::frostbite_engine::meters_to_units(1.0f)), float>);
+    static_assert(std::is_same_v<decltype(omath::frostbite_engine::kilometers_to_units(1.0)), double>);
+}
+
+TEST(unit_test_frostbite_engine, ConstexprConversions)
+{
+    constexpr double units = 1000.0;
+    constexpr double cm = omath::frostbite_engine::units_to_centimeters(units);
+    constexpr double m = omath::frostbite_engine::units_to_meters(units);
+    constexpr double km = omath::frostbite_engine::units_to_kilometers(units);
+
+    static_assert(cm == 10.0, "units_to_centimeters constexpr failed");
+    static_assert(m == 1000.0, "units_to_meters constexpr failed");
+    static_assert(km == 1.0, "units_to_kilometers constexpr failed");
+}
 TEST(unit_test_frostbite_engine, ForwardVector)
 {
     const auto forward = omath::frostbite_engine::forward_vector({});

tests/engines/unit_test_open_gl.cpp

@@ -7,6 +7,125 @@
 #include <omath/engines/opengl_engine/formulas.hpp>
 #include <random>
 
+TEST(unit_test_opengl, UnitsToCentimeters_BasicValues)
+{
+    EXPECT_FLOAT_EQ(omath::opengl_engine::units_to_centimeters(0.0f), 0.0f);
+    EXPECT_FLOAT_EQ(omath::opengl_engine::units_to_centimeters(1.0f), 0.01f);
+    EXPECT_FLOAT_EQ(omath::opengl_engine::units_to_centimeters(100.0f), 1.0f);
+    EXPECT_FLOAT_EQ(omath::opengl_engine::units_to_centimeters(-250.0f), -2.5f);
+}
+
+TEST(unit_test_opengl, UnitsToMeters_BasicValues)
+{
+    EXPECT_DOUBLE_EQ(omath::opengl_engine::units_to_meters(0.0), 0.0);
+    EXPECT_DOUBLE_EQ(omath::opengl_engine::units_to_meters(1.0), 1.0);
+    EXPECT_DOUBLE_EQ(omath::opengl_engine::units_to_meters(123.456), 123.456);
+    EXPECT_DOUBLE_EQ(omath::opengl_engine::units_to_meters(-42.0), -42.0);
+}
+
+TEST(unit_test_opengl, UnitsToKilometers_BasicValues)
+{
+    EXPECT_NEAR(omath::opengl_engine::units_to_kilometers(0.0), 0.0, 1e-15);
+    EXPECT_NEAR(omath::opengl_engine::units_to_kilometers(1.0), 0.001, 1e-15);
+    EXPECT_NEAR(omath::opengl_engine::units_to_kilometers(1000.0), 1.0, 1e-12);
+    EXPECT_NEAR(omath::opengl_engine::units_to_kilometers(-2500.0), -2.5, 1e-12);
+}
+
+TEST(unit_test_opengl, CentimetersToUnits_BasicValues)
+{
+    EXPECT_FLOAT_EQ(omath::opengl_engine::centimeters_to_units(0.0f), 0.0f);
+    EXPECT_FLOAT_EQ(omath::opengl_engine::centimeters_to_units(0.01f), 1.0f);
+    EXPECT_FLOAT_EQ(omath::opengl_engine::centimeters_to_units(1.0f), 100.0f);
+    EXPECT_FLOAT_EQ(omath::opengl_engine::centimeters_to_units(-2.5f), -250.0f);
+}
+
+TEST(unit_test_opengl, MetersToUnits_BasicValues)
+{
+    EXPECT_DOUBLE_EQ(omath::opengl_engine::meters_to_units(0.0), 0.0);
+    EXPECT_DOUBLE_EQ(omath::opengl_engine::meters_to_units(1.0), 1.0);
+    EXPECT_DOUBLE_EQ(omath::opengl_engine::meters_to_units(123.456), 123.456);
+    EXPECT_DOUBLE_EQ(omath::opengl_engine::meters_to_units(-42.0), -42.0);
+}
+
+TEST(unit_test_opengl, KilometersToUnits_BasicValues)
+{
+    EXPECT_NEAR(omath::opengl_engine::kilometers_to_units(0.0), 0.0, 1e-12);
+    EXPECT_NEAR(omath::opengl_engine::kilometers_to_units(0.001), 1.0, 1e-12);
+    EXPECT_NEAR(omath::opengl_engine::kilometers_to_units(1.0), 1000.0, 1e-9);
+    EXPECT_NEAR(omath::opengl_engine::kilometers_to_units(-2.5), -2500.0, 1e-9);
+}
+
+TEST(unit_test_opengl, RoundTrip_UnitsCentimeters)
+{
+    constexpr float units_f = 12345.678f;
+    const auto cm_f = omath::opengl_engine::units_to_centimeters(units_f);
+    const auto units_f_back = omath::opengl_engine::centimeters_to_units(cm_f);
+    EXPECT_NEAR(units_f_back, units_f, 1e-3f);
+
+    constexpr double units_d = -987654.321;
+    const auto cm_d = omath::opengl_engine::units_to_centimeters(units_d);
+    const auto units_d_back = omath::opengl_engine::centimeters_to_units(cm_d);
+    EXPECT_NEAR(units_d_back, units_d, 1e-9);
+}
+
+TEST(unit_test_opengl, RoundTrip_UnitsMeters)
+{
+    constexpr float units_f = 5432.125f;
+    const auto m_f = omath::opengl_engine::units_to_meters(units_f);
+    const auto units_f_back = omath::opengl_engine::meters_to_units(m_f);
+    EXPECT_FLOAT_EQ(units_f_back, units_f);
+
+    constexpr double units_d = -123456.789;
+    const auto m_d = omath::opengl_engine::units_to_meters(units_d);
+    const auto units_d_back = omath::opengl_engine::meters_to_units(m_d);
+    EXPECT_DOUBLE_EQ(units_d_back, units_d);
+}
+
+TEST(unit_test_opengl, RoundTrip_UnitsKilometers)
+{
+    constexpr float units_f = 100000.0f;
+    const auto km_f = omath::opengl_engine::units_to_kilometers(units_f);
+    const auto units_f_back = omath::opengl_engine::kilometers_to_units(km_f);
+    EXPECT_NEAR(units_f_back, units_f, 1e-2f);
+
+    constexpr double units_d = -7654321.123;
+    const auto km_d = omath::opengl_engine::units_to_kilometers(units_d);
+    const auto units_d_back = omath::opengl_engine::kilometers_to_units(km_d);
+    EXPECT_NEAR(units_d_back, units_d, 1e-6);
+}
+
+TEST(unit_test_opengl, ConversionChainConsistency)
+{
+    const double units = 424242.42;
+
+    const auto cm_direct = omath::opengl_engine::units_to_centimeters(units);
+    const auto cm_via_units = units / 100.0;
+    EXPECT_NEAR(cm_direct, cm_via_units, 1e-12);
+
+    const auto km_direct = omath::opengl_engine::units_to_kilometers(units);
+    const auto km_via_meters = omath::opengl_engine::units_to_meters(units) / 1000.0;
+    EXPECT_NEAR(km_direct, km_via_meters, 1e-12);
+}
+
+TEST(unit_test_opengl, SupportsFloatAndDouble)
+{
+    static_assert(std::is_same_v<decltype(omath::opengl_engine::units_to_centimeters(1.0f)), float>);
+    static_assert(std::is_same_v<decltype(omath::opengl_engine::units_to_centimeters(1.0)), double>);
+    static_assert(std::is_same_v<decltype(omath::opengl_engine::meters_to_units(1.0f)), float>);
+    static_assert(std::is_same_v<decltype(omath::opengl_engine::kilometers_to_units(1.0)), double>);
+}
+
+TEST(unit_test_opengl, ConstexprConversions)
+{
+    constexpr double units = 1000.0;
+    constexpr double cm = omath::opengl_engine::units_to_centimeters(units);
+    constexpr double m = omath::opengl_engine::units_to_meters(units);
+    constexpr double km = omath::opengl_engine::units_to_kilometers(units);
+
+    static_assert(cm == 10.0, "units_to_centimeters constexpr failed");
+    static_assert(m == 1000.0, "units_to_meters constexpr failed");
+    static_assert(km == 1.0, "units_to_kilometers constexpr failed");
+}
 TEST(unit_test_opengl, ForwardVector)
 {
     const auto forward = omath::opengl_engine::forward_vector({});

tests/engines/unit_test_source_engine.cpp

@@ -7,6 +7,129 @@
 #include <omath/engines/source_engine/formulas.hpp>
 #include <random>
 
+TEST(unit_test_source_engine_units, HammerUnitsToCentimeters_BasicValues)
+{
+    EXPECT_FLOAT_EQ(omath::source_engine::units_to_centimeters(0.0f), 0.0f);
+    EXPECT_FLOAT_EQ(omath::source_engine::units_to_centimeters(1.0f), 2.54f);
+    EXPECT_FLOAT_EQ(omath::source_engine::units_to_centimeters(10.0f), 25.4f);
+    EXPECT_FLOAT_EQ(omath::source_engine::units_to_centimeters(-2.0f), -5.08f);
+}
+
+TEST(unit_test_source_engine_units, HammerUnitsToMeters_BasicValues)
+{
+    EXPECT_NEAR(omath::source_engine::units_to_meters(0.0), 0.0, 1e-12);
+    EXPECT_NEAR(omath::source_engine::units_to_meters(1.0), 0.0254, 1e-12);
+    EXPECT_NEAR(omath::source_engine::units_to_meters(100.0), 2.54, 1e-12);
+    EXPECT_NEAR(omath::source_engine::units_to_meters(-4.0), -0.1016, 1e-12);
+}
+
+TEST(unit_test_source_engine_units, HammerUnitsToKilometers_BasicValues)
+{
+    EXPECT_NEAR(omath::source_engine::units_to_kilometers(0.0), 0.0, 1e-15);
+    EXPECT_NEAR(omath::source_engine::units_to_kilometers(1.0), 0.0000254, 1e-15);
+    EXPECT_NEAR(omath::source_engine::units_to_kilometers(1000.0), 0.0254, 1e-15);
+    EXPECT_NEAR(omath::source_engine::units_to_kilometers(-10.0), -0.000254, 1e-15);
+}
+
+TEST(unit_test_source_engine_units, CentimetersToHammerUnits_BasicValues)
+{
+    EXPECT_FLOAT_EQ(omath::source_engine::centimeters_to_units(0.0f), 0.0f);
+    EXPECT_NEAR(omath::source_engine::centimeters_to_units(2.54f), 1.0f, 1e-6f);
+    EXPECT_NEAR(omath::source_engine::centimeters_to_units(25.4f), 10.0f, 1e-5f);
+    EXPECT_NEAR(omath::source_engine::centimeters_to_units(-5.08f), -2.0f, 1e-6f);
+}
+
+TEST(unit_test_source_engine_units, MetersToHammerUnits_BasicValues)
+{
+    EXPECT_NEAR(omath::source_engine::meters_to_units(0.0), 0.0, 1e-12);
+    EXPECT_NEAR(omath::source_engine::meters_to_units(0.0254), 1.0, 1e-12);
+    EXPECT_NEAR(omath::source_engine::meters_to_units(2.54), 100.0, 1e-10);
+    EXPECT_NEAR(omath::source_engine::meters_to_units(-0.0508), -2.0, 1e-12);
+}
+
+TEST(unit_test_source_engine_units, KilometersToHammerUnits_BasicValues)
+{
+    EXPECT_NEAR(omath::source_engine::kilometers_to_units(0.0), 0.0, 1e-9);
+    EXPECT_NEAR(omath::source_engine::kilometers_to_units(0.0000254), 1.0, 1e-9);
+    EXPECT_NEAR(omath::source_engine::kilometers_to_units(0.00254), 100.0, 1e-7);
+    EXPECT_NEAR(omath::source_engine::kilometers_to_units(-0.0000508), -2.0, 1e-9);
+}
+
+TEST(unit_test_source_engine_units, RoundTrip_HammerToCentimetersToHammer)
+{
+    constexpr float hu_f = 123.456f;
+    constexpr auto cm_f = omath::source_engine::units_to_centimeters(hu_f);
+    constexpr auto hu_f_back = omath::source_engine::centimeters_to_units(cm_f);
+    EXPECT_NEAR(hu_f_back, hu_f, 1e-5f);
+
+    constexpr double hu_d = -98765.4321;
+    constexpr auto cm_d = omath::source_engine::units_to_centimeters(hu_d);
+    constexpr auto hu_d_back = omath::source_engine::centimeters_to_units(cm_d);
+    EXPECT_NEAR(hu_d_back, hu_d, 1e-10);
+}
+
+TEST(unit_test_source_engine_units, RoundTrip_HammerToMetersToHammer)
+{
+    constexpr float hu_f = 2500.25f;
+    constexpr auto m_f = omath::source_engine::units_to_meters(hu_f);
+    constexpr auto hu_f_back = omath::source_engine::meters_to_units(m_f);
+    EXPECT_NEAR(hu_f_back, hu_f, 1e-4f);
+
+    constexpr double hu_d = -42000.125;
+    constexpr auto m_d = omath::source_engine::units_to_meters(hu_d);
+    constexpr auto hu_d_back = omath::source_engine::meters_to_units(m_d);
+    EXPECT_NEAR(hu_d_back, hu_d, 1e-10);
+}
+
+TEST(unit_test_source_engine_units, RoundTrip_HammerToKilometersToHammer)
+{
+    constexpr float hu_f = 100000.0f;
+    constexpr auto km_f = omath::source_engine::units_to_kilometers(hu_f);
+    constexpr auto hu_f_back = omath::source_engine::kilometers_to_units(km_f);
+    EXPECT_NEAR(hu_f_back, hu_f, 1e-2f); // looser due to float scaling
+
+    constexpr double hu_d = -1234567.89;
+    constexpr auto km_d = omath::source_engine::units_to_kilometers(hu_d);
+    constexpr auto hu_d_back = omath::source_engine::kilometers_to_units(km_d);
+    EXPECT_NEAR(hu_d_back, hu_d, 1e-7);
+}
+
+TEST(unit_test_source_engine_units, ConversionChainConsistency)
+{
+    // hu -> cm -> m -> km should match direct helpers
+    constexpr auto hu = 54321.123;
+
+    constexpr auto cm = omath::source_engine::units_to_centimeters(hu);
+    constexpr auto m_via_cm = cm / 100.0;
+    constexpr auto km_via_cm = m_via_cm / 1000.0;
+
+    constexpr auto m_direct = omath::source_engine::units_to_meters(hu);
+    constexpr auto km_direct = omath::source_engine::units_to_kilometers(hu);
+
+    EXPECT_NEAR(m_direct, m_via_cm, 1e-12);
+    EXPECT_NEAR(km_direct, km_via_cm, 1e-15);
+}
+
+TEST(unit_test_source_engine_units, SupportsFloatAndDoubleTypes)
+{
+    static_assert(std::is_same_v<decltype(omath::source_engine::units_to_centimeters(1.0f)), float>);
+    static_assert(std::is_same_v<decltype(omath::source_engine::units_to_centimeters(1.0)), double>);
+    static_assert(std::is_same_v<decltype(omath::source_engine::meters_to_units(1.0f)), float>);
+    static_assert(std::is_same_v<decltype(omath::source_engine::kilometers_to_units(1.0)), double>);
+}
+
+TEST(unit_test_source_engine_units, ConstexprEvaluation)
+{
+    constexpr double hu = 10.0;
+    constexpr double cm = omath::source_engine::units_to_centimeters(hu);
+    constexpr double m = omath::source_engine::units_to_meters(hu);
+    constexpr double km = omath::source_engine::units_to_kilometers(hu);
+
+    static_assert(cm == 25.4, "constexpr hu->cm failed");
+    static_assert(m == 0.254, "constexpr hu->m failed");
+    static_assert(km == 0.000254, "constexpr hu->km failed");
+}
+
 TEST(unit_test_source_engine, ForwardVector)
 {
     const auto forward = omath::source_engine::forward_vector({});

tests/engines/unit_test_unity_engine.cpp

@@ -8,6 +8,126 @@
 #include <print>
 #include <random>
 
+TEST(unit_test_unity_engine, UnitsToCentimeters_BasicValues)
+{
+    EXPECT_FLOAT_EQ(omath::unity_engine::units_to_centimeters(0.0f), 0.0f);
+    EXPECT_FLOAT_EQ(omath::unity_engine::units_to_centimeters(1.0f), 0.01f);
+    EXPECT_FLOAT_EQ(omath::unity_engine::units_to_centimeters(100.0f), 1.0f);
+    EXPECT_FLOAT_EQ(omath::unity_engine::units_to_centimeters(-250.0f), -2.5f);
+}
+
+TEST(unit_test_unity_engine, UnitsToMeters_BasicValues)
+{
+    EXPECT_DOUBLE_EQ(omath::unity_engine::units_to_meters(0.0), 0.0);
+    EXPECT_DOUBLE_EQ(omath::unity_engine::units_to_meters(1.0), 1.0);
+    EXPECT_DOUBLE_EQ(omath::unity_engine::units_to_meters(123.456), 123.456);
+    EXPECT_DOUBLE_EQ(omath::unity_engine::units_to_meters(-42.0), -42.0);
+}
+
+TEST(unit_test_unity_engine, UnitsToKilometers_BasicValues)
+{
+    EXPECT_NEAR(omath::unity_engine::units_to_kilometers(0.0), 0.0, 1e-15);
+    EXPECT_NEAR(omath::unity_engine::units_to_kilometers(1.0), 0.001, 1e-15);
+    EXPECT_NEAR(omath::unity_engine::units_to_kilometers(1000.0), 1.0, 1e-12);
+    EXPECT_NEAR(omath::unity_engine::units_to_kilometers(-2500.0), -2.5, 1e-12);
+}
+
+TEST(unit_test_unity_engine, CentimetersToUnits_BasicValues)
+{
+    EXPECT_FLOAT_EQ(omath::unity_engine::centimeters_to_units(0.0f), 0.0f);
+    EXPECT_FLOAT_EQ(omath::unity_engine::centimeters_to_units(0.01f), 1.0f);
+    EXPECT_FLOAT_EQ(omath::unity_engine::centimeters_to_units(1.0f), 100.0f);
+    EXPECT_FLOAT_EQ(omath::unity_engine::centimeters_to_units(-2.5f), -250.0f);
+}
+
+TEST(unit_test_unity_engine, MetersToUnits_BasicValues)
+{
+    EXPECT_DOUBLE_EQ(omath::unity_engine::meters_to_units(0.0), 0.0);
+    EXPECT_DOUBLE_EQ(omath::unity_engine::meters_to_units(1.0), 1.0);
+    EXPECT_DOUBLE_EQ(omath::unity_engine::meters_to_units(123.456), 123.456);
+    EXPECT_DOUBLE_EQ(omath::unity_engine::meters_to_units(-42.0), -42.0);
+}
+
+TEST(unit_test_unity_engine, KilometersToUnits_BasicValues)
+{
+    EXPECT_NEAR(omath::unity_engine::kilometers_to_units(0.0), 0.0, 1e-12);
+    EXPECT_NEAR(omath::unity_engine::kilometers_to_units(0.001), 1.0, 1e-12);
+    EXPECT_NEAR(omath::unity_engine::kilometers_to_units(1.0), 1000.0, 1e-9);
+    EXPECT_NEAR(omath::unity_engine::kilometers_to_units(-2.5), -2500.0, 1e-9);
+}
+
+TEST(unit_test_unity_engine, RoundTrip_UnitsCentimeters)
+{
+    constexpr float units_f = 12345.678f;
+    constexpr auto cm_f = omath::unity_engine::units_to_centimeters(units_f);
+    constexpr auto units_f_back = omath::unity_engine::centimeters_to_units(cm_f);
+    EXPECT_NEAR(units_f_back, units_f, 1e-3f);
+
+    constexpr double units_d = -987654.321;
+    constexpr auto cm_d = omath::unity_engine::units_to_centimeters(units_d);
+    constexpr auto units_d_back = omath::unity_engine::centimeters_to_units(cm_d);
+    EXPECT_NEAR(units_d_back, units_d, 1e-9);
+}
+
+TEST(unit_test_unity_engine, RoundTrip_UnitsMeters)
+{
+    constexpr float units_f = 5432.125f;
+    constexpr auto m_f = omath::unity_engine::units_to_meters(units_f);
+    constexpr auto units_f_back = omath::unity_engine::meters_to_units(m_f);
+    EXPECT_FLOAT_EQ(units_f_back, units_f);
+
+    constexpr double units_d = -123456.789;
+    constexpr auto m_d = omath::unity_engine::units_to_meters(units_d);
+    constexpr auto units_d_back = omath::unity_engine::meters_to_units(m_d);
+    EXPECT_DOUBLE_EQ(units_d_back, units_d);
+}
+
+TEST(unit_test_unity_engine, RoundTrip_UnitsKilometers)
+{
+    constexpr float units_f = 100000.0f;
+    constexpr auto km_f = omath::unity_engine::units_to_kilometers(units_f);
+    constexpr auto units_f_back = omath::unity_engine::kilometers_to_units(km_f);
+    EXPECT_NEAR(units_f_back, units_f, 1e-2f);
+
+    constexpr double units_d = -7654321.123;
+    constexpr auto km_d = omath::unity_engine::units_to_kilometers(units_d);
+    constexpr auto units_d_back = omath::unity_engine::kilometers_to_units(km_d);
+    EXPECT_NEAR(units_d_back, units_d, 1e-6);
+}
+
+TEST(unit_test_unity_engine, ConversionChainConsistency)
+{
+    constexpr double units = 424242.42;
+
+    constexpr auto cm_direct = omath::unity_engine::units_to_centimeters(units);
+    constexpr auto cm_via_units = units / 100.0;
+    EXPECT_NEAR(cm_direct, cm_via_units, 1e-12);
+
+    constexpr auto km_direct = omath::unity_engine::units_to_kilometers(units);
+    constexpr auto km_via_meters = omath::unity_engine::units_to_meters(units) / 1000.0;
+    EXPECT_NEAR(km_direct, km_via_meters, 1e-12);
+}
+
+TEST(unit_test_unity_engine, SupportsFloatAndDouble)
+{
+    static_assert(std::is_same_v<decltype(omath::unity_engine::units_to_centimeters(1.0f)), float>);
+    static_assert(std::is_same_v<decltype(omath::unity_engine::units_to_centimeters(1.0)), double>);
+    static_assert(std::is_same_v<decltype(omath::unity_engine::meters_to_units(1.0f)), float>);
+    static_assert(std::is_same_v<decltype(omath::unity_engine::kilometers_to_units(1.0)), double>);
+}
+
+TEST(unit_test_unity_engine, ConstexprConversions)
+{
+    constexpr double units = 1000.0;
+    constexpr double cm = omath::unity_engine::units_to_centimeters(units);
+    constexpr double m = omath::unity_engine::units_to_meters(units);
+    constexpr double km = omath::unity_engine::units_to_kilometers(units);
+
+    static_assert(cm == 10.0, "units_to_centimeters constexpr failed");
+    static_assert(m == 1000.0, "units_to_meters constexpr failed");
+    static_assert(km == 1.0, "units_to_kilometers constexpr failed");
+}
+
 TEST(unit_test_unity_engine, ForwardVector)
 {
     const auto forward = omath::unity_engine::forward_vector({});

tests/engines/unit_test_unreal_engine.cpp

@@ -239,3 +239,126 @@ TEST(unit_test_unreal_engine, loook_at_random_z_axis)
     }
     EXPECT_LE(failed_points, 100);
 }
+TEST(unit_test_unreal_engine, UnitsToCentimeters_BasicValues)
+{
+    EXPECT_FLOAT_EQ(omath::unreal_engine::units_to_centimeters(0.0f), 0.0f);
+    EXPECT_FLOAT_EQ(omath::unreal_engine::units_to_centimeters(1.0f), 1.0f);
+    EXPECT_FLOAT_EQ(omath::unreal_engine::units_to_centimeters(250.0f), 250.0f);
+    EXPECT_FLOAT_EQ(omath::unreal_engine::units_to_centimeters(-42.5f), -42.5f);
+}
+
+TEST(unit_test_unreal_engine, UnitsToMeters_BasicValues)
+{
+    EXPECT_NEAR(omath::unreal_engine::units_to_meters(0.0), 0.0, 1e-15);
+    EXPECT_NEAR(omath::unreal_engine::units_to_meters(1.0), 0.01, 1e-15);
+    EXPECT_NEAR(omath::unreal_engine::units_to_meters(100.0), 1.0, 1e-12);
+    EXPECT_NEAR(omath::unreal_engine::units_to_meters(-250.0), -2.5, 1e-12);
+}
+
+TEST(unit_test_unreal_engine, UnitsToKilometers_BasicValues)
+{
+    EXPECT_NEAR(omath::unreal_engine::units_to_kilometers(0.0), 0.0, 1e-18);
+    EXPECT_NEAR(omath::unreal_engine::units_to_kilometers(1.0), 0.00001, 1e-18);
+    EXPECT_NEAR(omath::unreal_engine::units_to_kilometers(100000.0), 1.0, 1e-12);
+    EXPECT_NEAR(omath::unreal_engine::units_to_kilometers(-250000.0), -2.5, 1e-12);
+}
+
+TEST(unit_test_unreal_engine, CentimetersToUnits_BasicValues)
+{
+    EXPECT_FLOAT_EQ(omath::unreal_engine::centimeters_to_units(0.0f), 0.0f);
+    EXPECT_FLOAT_EQ(omath::unreal_engine::centimeters_to_units(1.0f), 1.0f);
+    EXPECT_FLOAT_EQ(omath::unreal_engine::centimeters_to_units(250.0f), 250.0f);
+    EXPECT_FLOAT_EQ(omath::unreal_engine::centimeters_to_units(-42.5f), -42.5f);
+}
+
+TEST(unit_test_unreal_engine, MetersToUnits_BasicValues)
+{
+    EXPECT_NEAR(omath::unreal_engine::meters_to_units(0.0), 0.0, 1e-12);
+    EXPECT_NEAR(omath::unreal_engine::meters_to_units(0.01), 1.0, 1e-12);
+    EXPECT_NEAR(omath::unreal_engine::meters_to_units(1.0), 100.0, 1e-9);
+    EXPECT_NEAR(omath::unreal_engine::meters_to_units(-2.5), -250.0, 1e-9);
+}
+
+TEST(unit_test_unreal_engine, KilometersToUnits_BasicValues)
+{
+    EXPECT_NEAR(omath::unreal_engine::kilometers_to_units(0.0), 0.0, 1e-9);
+    EXPECT_NEAR(omath::unreal_engine::kilometers_to_units(0.00001), 1.0, 1e-9);
+    EXPECT_NEAR(omath::unreal_engine::kilometers_to_units(1.0), 100000.0, 1e-6);
+    EXPECT_NEAR(omath::unreal_engine::kilometers_to_units(-2.5), -250000.0, 1e-3);
+}
+
+TEST(unit_test_unreal_engine, RoundTrip_UnitsCentimeters)
+{
+    constexpr float units_f = 12345.678f;
+    constexpr auto cm_f = omath::unreal_engine::units_to_centimeters(units_f);
+    constexpr auto units_f_back = omath::unreal_engine::centimeters_to_units(cm_f);
+    EXPECT_FLOAT_EQ(units_f_back, units_f);
+
+    constexpr double units_d = -987654.321;
+    constexpr auto cm_d = omath::unreal_engine::units_to_centimeters(units_d);
+    constexpr auto units_d_back = omath::unreal_engine::centimeters_to_units(cm_d);
+    EXPECT_DOUBLE_EQ(units_d_back, units_d);
+}
+
+TEST(unit_test_unreal_engine, RoundTrip_UnitsMeters)
+{
+    constexpr float units_f = 5432.125f;
+    constexpr auto m_f = omath::unreal_engine::units_to_meters(units_f);
+    constexpr auto units_f_back = omath::unreal_engine::meters_to_units(m_f);
+    EXPECT_NEAR(units_f_back, units_f, 1e-3f);
+
+    constexpr double units_d = -123456.789;
+    constexpr auto m_d = omath::unreal_engine::units_to_meters(units_d);
+    constexpr auto units_d_back = omath::unreal_engine::meters_to_units(m_d);
+    EXPECT_NEAR(units_d_back, units_d, 1e-9);
+}
+
+TEST(unit_test_unreal_engine, RoundTrip_UnitsKilometers)
+{
+    constexpr float units_f = 100000.0f;
+    constexpr auto km_f = omath::unreal_engine::units_to_kilometers(units_f);
+    constexpr auto units_f_back = omath::unreal_engine::kilometers_to_units(km_f);
+    EXPECT_NEAR(units_f_back, units_f, 1e-2f);
+
+    constexpr double units_d = -7654321.123;
+    constexpr auto km_d = omath::unreal_engine::units_to_kilometers(units_d);
+    constexpr auto units_d_back = omath::unreal_engine::kilometers_to_units(km_d);
+    EXPECT_NEAR(units_d_back, units_d, 1e-6);
+}
+
+TEST(unit_test_unreal_engine, ConversionChainConsistency)
+{
+    constexpr double units = 424242.42;
+
+    constexpr auto cm_direct = omath::unreal_engine::units_to_centimeters(units);
+    constexpr auto cm_expected = units; // 1 uu == 1 cm
+    EXPECT_NEAR(cm_direct, cm_expected, 1e-12);
+
+    constexpr auto m_direct = omath::unreal_engine::units_to_meters(units);
+    constexpr auto m_via_cm = cm_direct / 100.0;
+    EXPECT_NEAR(m_direct, m_via_cm, 1e-12);
+
+    constexpr auto km_direct = omath::unreal_engine::units_to_kilometers(units);
+    constexpr auto km_via_m = m_direct / 1000.0;
+    EXPECT_NEAR(km_direct, km_via_m, 1e-15);
+}
+
+TEST(unit_test_unreal_engine, SupportsFloatAndDouble)
+{
+    static_assert(std::is_same_v<decltype(omath::unreal_engine::units_to_centimeters(1.0f)), float>);
+    static_assert(std::is_same_v<decltype(omath::unreal_engine::units_to_centimeters(1.0)), double>);
+    static_assert(std::is_same_v<decltype(omath::unreal_engine::meters_to_units(1.0f)), float>);
+    static_assert(std::is_same_v<decltype(omath::unreal_engine::kilometers_to_units(1.0)), double>);
+}
+
+TEST(unit_test_unreal_engine, ConstexprConversions)
+{
+    constexpr double units = 100000.0;
+    constexpr double cm = omath::unreal_engine::units_to_centimeters(units);
+    constexpr double m = omath::unreal_engine::units_to_meters(units);
+    constexpr double km = omath::unreal_engine::units_to_kilometers(units);
+
+    static_assert(cm == 100000.0, "units_to_centimeters constexpr failed");
+    static_assert(m == 1000.0, "units_to_meters constexpr failed");
+    static_assert(km == 1.0, "units_to_kilometers constexpr failed");
+}

tests/general/unit_test_line_trace.cpp

@@ -47,7 +47,7 @@ namespace
     // -----------------------------------------------------------------------------
     struct TraceCase
     {
-        Ray ray;
+        Ray<> ray;
         bool expected_clear; // true => segment does NOT hit the triangle
         friend std::ostream& operator<<(std::ostream& os, const TraceCase& tc)
         {
@@ -66,7 +66,7 @@ namespace
     TEST_P(CanTraceLineParam, VariousRays)
     {
         const auto& [ray, expected_clear] = GetParam();
-        EXPECT_EQ(LineTracer::can_trace_line(ray, triangle), expected_clear);
+        EXPECT_EQ(LineTracer<>::can_trace_line(ray, triangle), expected_clear);
     }
 
     INSTANTIATE_TEST_SUITE_P(
@@ -91,7 +91,7 @@ namespace
         constexpr Ray ray{{0.3f, 0.3f, -1.f}, {0.3f, 0.3f, 1.f}};
         constexpr Vec3 expected{0.3f, 0.3f, 0.f};
 
-        const Vec3 hit = LineTracer::get_ray_hit_point(ray, triangle);
+        const Vec3 hit = LineTracer<>::get_ray_hit_point(ray, triangle);
         ASSERT_FALSE(vec_equal(hit, ray.end));
         EXPECT_TRUE(vec_equal(hit, expected));
     }
@@ -106,7 +106,7 @@ namespace
                                          {1001.f, 1000.f, 1000.f},
                                          {1000.f, 1001.f, 1000.f}};
 
-        EXPECT_TRUE(LineTracer::can_trace_line(short_ray, distant));
+        EXPECT_TRUE(LineTracer<>::can_trace_line(short_ray, distant));
     }
 
     TEST(unit_test_unity_engine, CantHit)
@@ -115,13 +115,13 @@ namespace
 
         constexpr Ray ray{{}, {1.0, 0, 0}, false};
 
-        EXPECT_TRUE(omath::collision::LineTracer::can_trace_line(ray, triangle));
+        EXPECT_TRUE(omath::collision::LineTracer<>::can_trace_line(ray, triangle));
     }
     TEST(unit_test_unity_engine, CanHit)
     {
         constexpr omath::Triangle<Vector3<float>> triangle{{2, 0, 0}, {2, 2, 0}, {2, 2, 2}};
 
         constexpr Ray ray{{}, {2.1, 0, 0}, false};
-        EXPECT_FALSE(omath::collision::LineTracer::can_trace_line(ray, triangle));
+        EXPECT_FALSE(omath::collision::LineTracer<>::can_trace_line(ray, triangle));
     }
 } // namespace

tests/general/unit_test_line_tracer.cpp

@@ -15,9 +15,9 @@ TEST(LineTracerTests, ParallelRayReturnsEnd)
     ray.end = Vector3<float>{1.f,1.f,1.f};
 
     // For a ray parallel to the triangle plane the algorithm should return ray.end
-    const auto hit = omath::collision::LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = omath::collision::LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_TRUE(hit == ray.end);
-    EXPECT_TRUE(omath::collision::LineTracer::can_trace_line(ray, tri));
+    EXPECT_TRUE(omath::collision::LineTracer<>::can_trace_line(ray, tri));
 }
 
 TEST(LineTracerTests, MissesTriangleReturnsEnd)
@@ -27,7 +27,7 @@ TEST(LineTracerTests, MissesTriangleReturnsEnd)
     ray.start = Vector3<float>{2.f,2.f,-1.f};
     ray.end = Vector3<float>{2.f,2.f,1.f}; // passes above the triangle area
 
-    const auto hit = omath::collision::LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = omath::collision::LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_TRUE(hit == ray.end);
 }
 
@@ -38,7 +38,7 @@ TEST(LineTracerTests, HitTriangleReturnsPointInsideSegment)
     ray.start = Vector3<float>{0.25f,0.25f,-1.f};
     ray.end = Vector3<float>{0.25f,0.25f,1.f};
 
-    const auto hit = omath::collision::LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = omath::collision::LineTracer<>::get_ray_hit_point(ray, tri);
     // Should return a point between start and end (z approximately 0)
     EXPECT_NE(hit, ray.end);
     EXPECT_NEAR(hit.z, 0.f, 1e-4f);
@@ -60,6 +60,6 @@ TEST(LineTracerTests, InfiniteLengthEarlyOut)
 
     // If t_hit <= epsilon the algorithm should return ray.end when infinite_length is true.
     // Using start on the triangle plane should produce t_hit <= epsilon.
-    const auto hit = omath::collision::LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = omath::collision::LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_TRUE(hit == ray.end);
 }

tests/general/unit_test_line_tracer_extra.cpp

@@ -10,7 +10,7 @@ TEST(LineTracerExtra, MissParallel)
 {
     constexpr Triangle<Vector3<float>> tri({0,0,0},{1,0,0},{0,1,0});
     constexpr Ray ray{ {0.3f,0.3f,1.f}, {0.3f,0.3f,2.f}, false }; // parallel above triangle
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_EQ(hit, ray.end);
 }
 
@@ -18,7 +18,7 @@ TEST(LineTracerExtra, HitCenter)
 {
     constexpr Triangle<Vector3<float>> tri({0,0,0},{1,0,0},{0,1,0});
     constexpr Ray ray{ {0.3f,0.3f,-1.f}, {0.3f,0.3f,1.f}, false };
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     ASSERT_FALSE(hit == ray.end);
     EXPECT_NEAR(hit.x, 0.3f, 1e-6f);
     EXPECT_NEAR(hit.y, 0.3f, 1e-6f);
@@ -30,7 +30,7 @@ TEST(LineTracerExtra, HitOnEdge)
     constexpr Triangle<Vector3<float>> tri({0,0,0},{1,0,0},{0,1,0});
     constexpr Ray ray{ {0.0f,0.0f,1.f}, {0.0f,0.0f,0.f}, false };
     // hitting exact vertex/edge may be considered miss; ensure function handles without crash
-    if (const auto hit = LineTracer::get_ray_hit_point(ray, tri); hit != ray.end)
+    if (const auto hit = LineTracer<>::get_ray_hit_point(ray, tri); hit != ray.end)
     {
         EXPECT_NEAR(hit.x, 0.0f, 1e-6f);
         EXPECT_NEAR(hit.y, 0.0f, 1e-6f);
@@ -42,6 +42,6 @@ TEST(LineTracerExtra, InfiniteRayIgnoredIfBehind)
     constexpr Triangle<Vector3<float>> tri({0,0,0},{1,0,0},{0,1,0});
     // Ray pointing away but infinite_length true should be ignored
     constexpr Ray ray{ {0.5f,0.5f,-1.f}, {0.5f,0.5f,-2.f}, true };
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_EQ(hit, ray.end);
 }

tests/general/unit_test_line_tracer_more.cpp

@@ -14,7 +14,7 @@ TEST(LineTracerMore, ParallelRayReturnsEnd)
     constexpr Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
     Ray ray; ray.start = {0.f,0.f,1.f}; ray.end = {1.f,0.f,1.f};
 
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_EQ(hit, ray.end);
 }
 
@@ -24,7 +24,7 @@ TEST(LineTracerMore, UOutOfRangeReturnsEnd)
     constexpr Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
     Ray ray; ray.start = {-1.f,-1.f,-1.f}; ray.end = {-0.5f,-1.f,1.f};
 
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_EQ(hit, ray.end);
 }
 
@@ -34,7 +34,7 @@ TEST(LineTracerMore, VOutOfRangeReturnsEnd)
     constexpr Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
     Ray ray; ray.start = {2.f,2.f,-1.f}; ray.end = {2.f,2.f,1.f};
 
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_EQ(hit, ray.end);
 }
 
@@ -43,7 +43,7 @@ TEST(LineTracerMore, THitTooSmallReturnsEnd)
     constexpr Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
     Ray ray; ray.start = {0.f,0.f,0.0000000001f}; ray.end = {0.f,0.f,1.f};
 
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_EQ(hit, ray.end);
 }
 
@@ -53,7 +53,7 @@ TEST(LineTracerMore, THitGreaterThanOneReturnsEnd)
     // Choose a ray and compute t_hit locally to assert consistency
     Ray ray; ray.start = {0.f,0.f,-1.f}; ray.end = {0.f,0.f,-0.5f};
 
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
 
     constexpr float k_epsilon = std::numeric_limits<float>::epsilon();
     constexpr auto side_a = tri.side_a_vector();
@@ -87,7 +87,7 @@ TEST(LineTracerMore, InfiniteLengthWithSmallTHitReturnsEnd)
     // Create triangle slightly behind so t_hit <= eps
     tri = tri2;
 
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_EQ(hit, ray.end);
 }
 
@@ -96,7 +96,7 @@ TEST(LineTracerMore, SuccessfulHitReturnsPoint)
     constexpr Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
     Ray ray; ray.start = {0.1f,0.1f,-1.f}; ray.end = {0.1f,0.1f,1.f};
 
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_NE(hit, ray.end);
     // Hit should be on plane z=0 and near x=0.1,y=0.1
     EXPECT_NEAR(hit.z, 0.f, 1e-6f);

tests/general/unit_test_line_tracer_more2.cpp

@@ -14,7 +14,7 @@ TEST(LineTracerMore2, UGreaterThanOneReturnsEnd)
     // choose ray so barycentric u > 1
     Ray ray; ray.start = {2.f, -1.f, -1.f}; ray.end = {2.f, -1.f, 1.f};
 
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_EQ(hit, ray.end);
 }
 
@@ -24,7 +24,7 @@ TEST(LineTracerMore2, VGreaterThanOneReturnsEnd)
     // choose ray so barycentric v > 1
     Ray ray; ray.start = {-1.f, 2.f, -1.f}; ray.end = {-1.f, 2.f, 1.f};
 
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_EQ(hit, ray.end);
 }
 
@@ -34,7 +34,7 @@ TEST(LineTracerMore2, UPlusVGreaterThanOneReturnsEnd)
     // Ray aimed so u+v > 1 (outside triangle region)
     Ray ray; ray.start = {1.f, 1.f, -1.f}; ray.end = {1.f, 1.f, 1.f};
 
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_EQ(hit, ray.end);
 }
 
@@ -52,6 +52,6 @@ TEST(LineTracerMore2, ZeroLengthRayHandled)
     Ray ray; ray.start = {0.f,0.f,0.f}; ray.end = {0.f,0.f,0.f};
 
     // Zero-length ray: direction length == 0; algorithm should handle without crash
-    const auto hit = LineTracer::get_ray_hit_point(ray, tri);
+    const auto hit = LineTracer<>::get_ray_hit_point(ray, tri);
     EXPECT_EQ(hit, ray.end);
 }

tests/general/unit_test_macho_scanner.cpp

@@ -19,6 +19,8 @@ namespace
     constexpr std::uint32_t lc_segment = 0x1;
     constexpr std::uint32_t lc_segment_64 = 0x19;
 
+    constexpr std::string_view segment_name = "__TEXT";
+    constexpr std::string_view section_name = "__text";
 #pragma pack(push, 1)
     struct MachHeader64
     {
@@ -117,7 +119,6 @@ namespace
         constexpr std::size_t segment_size = sizeof(SegmentCommand64);
         constexpr std::size_t section_size = sizeof(Section64);
         constexpr std::size_t load_cmd_size = segment_size + section_size;
-
         // Section data will start after headers
         const std::size_t section_offset = header_size + load_cmd_size;
 
@@ -138,7 +139,7 @@ namespace
         SegmentCommand64 segment{};
         segment.cmd = lc_segment_64;
         segment.cmdsize = static_cast<std::uint32_t>(load_cmd_size);
-        std::strncpy(segment.segname, "__TEXT", 16);
+        std::ranges::copy(segment_name, segment.segname);
         segment.vmaddr = 0x100000000;
         segment.vmsize = section_bytes.size();
         segment.fileoff = section_offset;
@@ -152,8 +153,8 @@ namespace
 
         // Create section
         Section64 section{};
-        std::strncpy(section.sectname, "__text", 16);
-        std::strncpy(section.segname, "__TEXT", 16);
+        std::ranges::copy(section_name, section.sectname);
+        std::ranges::copy(segment_name, segment.segname);
         section.addr = 0x100000000;
         section.size = section_bytes.size();
         section.offset = static_cast<std::uint32_t>(section_offset);
@@ -188,7 +189,7 @@ namespace
         constexpr std::size_t load_cmd_size = segment_size + section_size;
 
         // Section data will start after headers
-        const std::size_t section_offset = header_size + load_cmd_size;
+        constexpr std::size_t section_offset = header_size + load_cmd_size;
 
         // Create Mach-O header
         MachHeader32 header{};
@@ -206,7 +207,7 @@ namespace
         SegmentCommand32 segment{};
         segment.cmd = lc_segment;
         segment.cmdsize = static_cast<std::uint32_t>(load_cmd_size);
-        std::strncpy(segment.segname, "__TEXT", 16);
+        std::ranges::copy(segment_name, segment.segname);
         segment.vmaddr = 0x1000;
         segment.vmsize = static_cast<std::uint32_t>(section_bytes.size());
         segment.fileoff = static_cast<std::uint32_t>(section_offset);
@@ -220,8 +221,8 @@ namespace
 
         // Create section
         Section32 section{};
-        std::strncpy(section.sectname, "__text", 16);
-        std::strncpy(section.segname, "__TEXT", 16);
+        std::ranges::copy(section_name, section.sectname);
+        std::ranges::copy(segment_name, segment.segname);
         section.addr = 0x1000;
         section.size = static_cast<std::uint32_t>(section_bytes.size());
         section.offset = static_cast<std::uint32_t>(section_offset);

tests/general/unit_test_primitive_box.cpp

@@ -12,5 +12,5 @@ TEST(test, test)
             {0.f, 30.f, 0.f}, {}, omath::opengl_engine::k_abs_forward, omath::opengl_engine::k_abs_right);
 
     omath::collision::Ray ray{.start = {0, 0, 0}, .end = {-100, 0, 0}};
-    std::ignore = omath::collision::LineTracer::get_ray_hit_point(ray, result);
+    std::ignore = omath::collision::LineTracer<>::get_ray_hit_point(ray, result);
 }

vcpkg.json

@@ -27,10 +27,11 @@
       ]
     },
     "examples": {
-      "description": "Build benchmarks",
+      "description": "Build examples",
       "dependencies": [
         "glfw3",
-        "glew"
+        "glew",
+        "opengl"
       ]
     },
     "imgui": {