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added additional method

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Orange
2026-06-22 06:07:56 +03:00
parent 2ee485297f
commit 8ccc9459d4
3 changed files with 60 additions and 1 deletions
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VERSION
+1 -1
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@@ -1 +1 @@
5.3.0
5.4.0
include/omath/projection/camera.hpp
+17
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@@ -466,6 +466,23 @@ namespace omath::projection
return false;
}
[[nodiscard("You must view camera space coordinates")]]
constexpr Vector3<NumericType> world_to_view_coordinates(const Vector3<NumericType>& world_coordinates) const noexcept
{
if consteval
{
const auto view_coordinates =
calc_view_matrix()
* mat_column_from_vector<NumericType, Mat4X4Type::get_store_ordering()>(world_coordinates);
return {view_coordinates.at(0, 0), view_coordinates.at(1, 0), view_coordinates.at(2, 0)};
}
const auto view_coordinates =
get_view_matrix()
* mat_column_from_vector<NumericType, Mat4X4Type::get_store_ordering()>(world_coordinates);
return {view_coordinates.at(0, 0), view_coordinates.at(1, 0), view_coordinates.at(2, 0)};
}
[[nodiscard("You must use view port position")]] constexpr std::expected<Vector3<NumericType>, Error>
world_to_view_port(const Vector3<NumericType>& world_position,
const ViewPortClipping& clipping = ViewPortClipping::AUTO) const noexcept
tests/general/unit_test_projection.cpp
+42
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@@ -580,6 +580,48 @@ TEST(UnitTestProjection, AabbUnityEngineStraddlesNearNotCulled)
EXPECT_FALSE(cam.is_aabb_culled_by_frustum(aabb));
}
TEST(UnitTestProjection, WorldToViewCoordinates_TranslatedSourceCamera)
{
constexpr float k_eps = 1e-4f;
constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
auto cam = omath::source_engine::Camera({10.f, 20.f, 30.f}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
const auto view_coordinates = cam.world_to_view_coordinates({15.f, 12.f, 37.f});
EXPECT_NEAR(view_coordinates.x, 8.f, k_eps);
EXPECT_NEAR(view_coordinates.y, 7.f, k_eps);
EXPECT_NEAR(view_coordinates.z, 5.f, k_eps);
}
TEST(UnitTestProjection, WorldToViewCoordinates_RotatedSourceCamera)
{
constexpr float k_eps = 1e-4f;
constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
const omath::source_engine::ViewAngles angles{omath::source_engine::PitchAngle::from_degrees(0.f),
omath::source_engine::YawAngle::from_degrees(90.f),
omath::source_engine::RollAngle::from_degrees(0.f)};
auto cam = omath::source_engine::Camera({10.f, 20.f, 30.f}, angles, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
const auto view_coordinates = cam.world_to_view_coordinates({14.f, 26.f, 38.f});
EXPECT_NEAR(view_coordinates.x, 4.f, k_eps);
EXPECT_NEAR(view_coordinates.y, 8.f, k_eps);
EXPECT_NEAR(view_coordinates.z, 6.f, k_eps);
}
TEST(UnitTestProjection, WorldToViewCoordinates_ColumnMajorOpenGlCamera)
{
constexpr float k_eps = 1e-4f;
constexpr auto fov = omath::projection::FieldOfView::from_degrees(90.f);
auto cam = omath::opengl_engine::Camera({10.f, 20.f, 30.f}, {}, {1920.f, 1080.f}, fov, 0.01f, 1000.f);
const auto view_coordinates = cam.world_to_view_coordinates({14.f, 26.f, 22.f});
EXPECT_NEAR(view_coordinates.x, 4.f, k_eps);
EXPECT_NEAR(view_coordinates.y, 6.f, k_eps);
EXPECT_NEAR(view_coordinates.z, -8.f, k_eps);
}
TEST(UnitTestProjection, CalcViewAnglesFromViewMatrix_LookingForward)
{
constexpr float k_eps = 1e-4f;