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added more tests

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Orange
2026-05-14 02:30:21 +03:00
parent 7a2ac25e8d
commit bdef596f16
6 changed files with 166 additions and 6 deletions
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include/omath/engines/cry_engine/constants.hpp
+1 -1
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@@ -15,7 +15,7 @@ namespace omath::cry_engine
constexpr Vector3<float> k_abs_forward = {0, 1, 0};
using Mat4X4 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat3X3 = Mat<4, 4, float, MatStoreType::ROW_MAJOR>;
using Mat3X3 = Mat<3, 3, float, MatStoreType::ROW_MAJOR>;
using Mat1X3 = Mat<1, 3, float, MatStoreType::ROW_MAJOR>;
using PitchAngle = Angle<float, -90.f, 90.f, AngleFlags::Clamped>;
using YawAngle = Angle<float, -180.f, 180.f, AngleFlags::Normalized>;
include/omath/engines/cry_engine/formulas.hpp
+1 -1
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@@ -23,7 +23,7 @@ namespace omath::cry_engine
[[nodiscard]]
Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far,
NDCDepthRange ndc_depth_range = NDCDepthRange::NEGATIVE_ONE_TO_ONE) noexcept;
NDCDepthRange ndc_depth_range = NDCDepthRange::ZERO_TO_ONE) noexcept;
template<class FloatingType>
requires std::is_floating_point_v<FloatingType>
source/engines/cry_engine/formulas.cpp
+1 -1
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@@ -46,4 +46,4 @@ namespace omath::cry_engine
field_of_view, aspect_ratio, near, far);
std::unreachable();
}
} // namespace omath::unity_engine
} // namespace omath::cry_engine
source/engines/cry_engine/traits/camera_trait.cpp
+1 -1
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@@ -24,4 +24,4 @@ namespace omath::cry_engine
return calc_perspective_projection_matrix(fov.as_degrees(), view_port.aspect_ratio(), near, far,
ndc_depth_range);
}
} // namespace omath::unity_engine
} // namespace omath::cry_engine
tests/engines/unit_test_cry_engine.cpp
+2 -2
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@@ -29,11 +29,11 @@ TEST(unit_test_cry_engine, look_at_right)
}
TEST(unit_test_cry_engine, look_at_up)
{
const auto angles = cry_engine::CameraTrait::calc_look_at_angle({}, cry_engine::k_abs_right);
const auto angles = cry_engine::CameraTrait::calc_look_at_angle({}, cry_engine::k_abs_up);
// ReSharper disable once CppTooWideScopeInitStatement
const auto dir_vector = cry_engine::forward_vector(angles);
for (const auto& [result, etalon] : std::views::zip(dir_vector.as_array(), cry_engine::k_abs_right.as_array()))
for (const auto& [result, etalon] : std::views::zip(dir_vector.as_array(), cry_engine::k_abs_up.as_array()))
EXPECT_NEAR(result, etalon, 0.0001f);
}
tests/general/unit_test_mat.cpp
+160
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@@ -1,6 +1,7 @@
// UnitTestMat.cpp
#include "omath/linear_algebra/mat.hpp"
#include "omath/linear_algebra/vector3.hpp"
#include "omath/trigonometry/angles.hpp"
#include <gtest/gtest.h>
using namespace omath;
@@ -306,6 +307,165 @@ TEST(UnitTestMatStandalone, MatPerspectiveNegativeOneToOneRange)
EXPECT_NEAR(far_pt.at(2, 0), 1.0f, 1e-3f);
}
TEST(UnitTestMatStandalone, MatPerspectiveRightHandedNegOneToOne)
{
const auto proj = mat_perspective_right_handed_vertical_fov<float, MatStoreType::ROW_MAJOR,
NDCDepthRange::NEGATIVE_ONE_TO_ONE>(90.f, 16.f / 9.f, 0.1f, 1000.f);
// Near plane (negative z for RH) should map to z ~ -1
auto near_pt = proj * mat_column_from_vector<float>({0, 0, -0.1f});
near_pt /= near_pt.at(3, 0);
EXPECT_NEAR(near_pt.at(2, 0), -1.0f, 1e-3f);
// Far plane should map to z ~ 1
auto far_pt = proj * mat_column_from_vector<float>({0, 0, -1000.f});
far_pt /= far_pt.at(3, 0);
EXPECT_NEAR(far_pt.at(2, 0), 1.0f, 1e-3f);
// Mid-range point should be in (-1, 1)
auto mid_pt = proj * mat_column_from_vector<float>({0, 0, -500.f});
mid_pt /= mid_pt.at(3, 0);
EXPECT_GT(mid_pt.at(2, 0), -1.0f);
EXPECT_LT(mid_pt.at(2, 0), 1.0f);
}
TEST(UnitTestMatStandalone, MatPerspectiveLeftHandedHorizontalFovZeroToOne)
{
// hfov=90 deg, aspect=16/9 => tan(hfov/2)=1, so x_axis=1 and y_axis=aspect
const auto proj = mat_perspective_left_handed_horizontal_fov<float, MatStoreType::ROW_MAJOR,
NDCDepthRange::ZERO_TO_ONE>(90.f, 16.f / 9.f, 0.1f, 1000.f);
// Near plane should map to z ~ 0
auto near_pt = proj * mat_column_from_vector<float>({0, 0, 0.1f});
near_pt /= near_pt.at(3, 0);
EXPECT_NEAR(near_pt.at(2, 0), 0.0f, 1e-4f);
// Far plane should map to z ~ 1
auto far_pt = proj * mat_column_from_vector<float>({0, 0, 1000.f});
far_pt /= far_pt.at(3, 0);
EXPECT_NEAR(far_pt.at(2, 0), 1.0f, 1e-4f);
// Right edge of horizontal frustum at near plane (view_x = tan(hfov/2)*near = 0.1)
auto right_edge = proj * mat_column_from_vector<float>({0.1f, 0, 0.1f});
right_edge /= right_edge.at(3, 0);
EXPECT_NEAR(right_edge.at(0, 0), 1.0f, 1e-4f);
}
TEST(UnitTestMatStandalone, MatPerspectiveLeftHandedHorizontalFovNegOneToOne)
{
const auto proj = mat_perspective_left_handed_horizontal_fov<float, MatStoreType::ROW_MAJOR,
NDCDepthRange::NEGATIVE_ONE_TO_ONE>(90.f, 16.f / 9.f, 0.1f, 1000.f);
auto near_pt = proj * mat_column_from_vector<float>({0, 0, 0.1f});
near_pt /= near_pt.at(3, 0);
EXPECT_NEAR(near_pt.at(2, 0), -1.0f, 1e-3f);
auto far_pt = proj * mat_column_from_vector<float>({0, 0, 1000.f});
far_pt /= far_pt.at(3, 0);
EXPECT_NEAR(far_pt.at(2, 0), 1.0f, 1e-3f);
auto right_edge = proj * mat_column_from_vector<float>({0.1f, 0, 0.1f});
right_edge /= right_edge.at(3, 0);
EXPECT_NEAR(right_edge.at(0, 0), 1.0f, 1e-4f);
}
TEST(UnitTestMatStandalone, MatPerspectiveRightHandedHorizontalFovZeroToOne)
{
const auto proj = mat_perspective_right_handed_horizontal_fov<float, MatStoreType::ROW_MAJOR,
NDCDepthRange::ZERO_TO_ONE>(90.f, 16.f / 9.f, 0.1f, 1000.f);
auto near_pt = proj * mat_column_from_vector<float>({0, 0, -0.1f});
near_pt /= near_pt.at(3, 0);
EXPECT_NEAR(near_pt.at(2, 0), 0.0f, 1e-4f);
auto far_pt = proj * mat_column_from_vector<float>({0, 0, -1000.f});
far_pt /= far_pt.at(3, 0);
EXPECT_NEAR(far_pt.at(2, 0), 1.0f, 1e-4f);
auto right_edge = proj * mat_column_from_vector<float>({0.1f, 0, -0.1f});
right_edge /= right_edge.at(3, 0);
EXPECT_NEAR(right_edge.at(0, 0), 1.0f, 1e-4f);
}
TEST(UnitTestMatStandalone, MatPerspectiveRightHandedHorizontalFovNegOneToOne)
{
const auto proj = mat_perspective_right_handed_horizontal_fov<float, MatStoreType::ROW_MAJOR,
NDCDepthRange::NEGATIVE_ONE_TO_ONE>(90.f, 16.f / 9.f, 0.1f, 1000.f);
auto near_pt = proj * mat_column_from_vector<float>({0, 0, -0.1f});
near_pt /= near_pt.at(3, 0);
EXPECT_NEAR(near_pt.at(2, 0), -1.0f, 1e-3f);
auto far_pt = proj * mat_column_from_vector<float>({0, 0, -1000.f});
far_pt /= far_pt.at(3, 0);
EXPECT_NEAR(far_pt.at(2, 0), 1.0f, 1e-3f);
auto right_edge = proj * mat_column_from_vector<float>({0.1f, 0, -0.1f});
right_edge /= right_edge.at(3, 0);
EXPECT_NEAR(right_edge.at(0, 0), 1.0f, 1e-4f);
}
TEST(UnitTestMatStandalone, MatPerspectiveHorizontalVsVerticalFovEquivalence)
{
constexpr float hfov_deg = 90.f;
constexpr float aspect = 16.f / 9.f;
const float vfov_deg = angles::horizontal_fov_to_vertical(hfov_deg, aspect);
const auto proj_h = mat_perspective_left_handed_horizontal_fov(hfov_deg, aspect, 0.1f, 1000.f);
const auto proj_v = mat_perspective_left_handed_vertical_fov(vfov_deg, aspect, 0.1f, 1000.f);
for (size_t i = 0; i < 4; ++i)
for (size_t j = 0; j < 4; ++j)
EXPECT_NEAR(proj_h.at(i, j), proj_v.at(i, j), 1e-4f);
}
// Handedness contract: clip_w sign tells front-of-camera vs behind.
// LH: +z view-space is in front (clip_w > 0), -z is behind (clip_w < 0).
// RH: -z view-space is in front (clip_w > 0), +z is behind (clip_w < 0).
TEST(UnitTestMatStandalone, MatPerspectiveLeftHandedVerticalFovHandedness)
{
const auto proj = mat_perspective_left_handed_vertical_fov(90.f, 16.f / 9.f, 0.1f, 1000.f);
const auto in_front = proj * mat_column_from_vector<float>({0, 0, 1.f});
const auto behind = proj * mat_column_from_vector<float>({0, 0, -1.f});
EXPECT_GT(in_front.at(3, 0), 0.0f);
EXPECT_LT(behind.at(3, 0), 0.0f);
}
TEST(UnitTestMatStandalone, MatPerspectiveRightHandedVerticalFovHandedness)
{
const auto proj = mat_perspective_right_handed_vertical_fov(90.f, 16.f / 9.f, 0.1f, 1000.f);
const auto in_front = proj * mat_column_from_vector<float>({0, 0, -1.f});
const auto behind = proj * mat_column_from_vector<float>({0, 0, 1.f});
EXPECT_GT(in_front.at(3, 0), 0.0f);
EXPECT_LT(behind.at(3, 0), 0.0f);
}
TEST(UnitTestMatStandalone, MatPerspectiveLeftHandedHorizontalFovHandedness)
{
const auto proj = mat_perspective_left_handed_horizontal_fov(90.f, 16.f / 9.f, 0.1f, 1000.f);
const auto in_front = proj * mat_column_from_vector<float>({0, 0, 1.f});
const auto behind = proj * mat_column_from_vector<float>({0, 0, -1.f});
EXPECT_GT(in_front.at(3, 0), 0.0f);
EXPECT_LT(behind.at(3, 0), 0.0f);
}
TEST(UnitTestMatStandalone, MatPerspectiveRightHandedHorizontalFovHandedness)
{
const auto proj = mat_perspective_right_handed_horizontal_fov(90.f, 16.f / 9.f, 0.1f, 1000.f);
const auto in_front = proj * mat_column_from_vector<float>({0, 0, -1.f});
const auto behind = proj * mat_column_from_vector<float>({0, 0, 1.f});
EXPECT_GT(in_front.at(3, 0), 0.0f);
EXPECT_LT(behind.at(3, 0), 0.0f);
}
TEST(UnitTestMatStandalone, MatPerspectiveZeroToOneEquanity)
{
// LH and RH should produce same NDC for mirrored z