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added new mat function

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more tests
This commit is contained in:
Orange
2025-09-20 02:09:59 +03:00
parent bfd399e631
commit 792db7a673
15 changed files with 362 additions and 40 deletions
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2
include/omath/engines/iw_engine/traits/camera_trait.hpp
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@@ -12,7 +12,7 @@ namespace omath::iw_engine
{
public:
[[nodiscard]]
static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
static Mat4X4 calc_look_at_mat(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
[[nodiscard]]
static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;

2
include/omath/engines/opengl_engine/traits/camera_trait.hpp
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@@ -12,7 +12,7 @@ namespace omath::opengl_engine
{
public:
[[nodiscard]]
static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
static Mat4X4 calc_look_at_mat(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
[[nodiscard]]
static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;

2
include/omath/engines/source_engine/traits/camera_trait.hpp
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@@ -12,7 +12,7 @@ namespace omath::source_engine
{
public:
[[nodiscard]]
static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
static Mat4X4 calc_look_at_mat(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
[[nodiscard]]
static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;

2
include/omath/engines/unity_engine/traits/camera_trait.hpp
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@@ -12,7 +12,7 @@ namespace omath::unity_engine
{
public:
[[nodiscard]]
static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
static Mat4X4 calc_look_at_mat(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
[[nodiscard]]
static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;

2
include/omath/engines/unreal_engine/traits/camera_trait.hpp
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@@ -12,7 +12,7 @@ namespace omath::unreal_engine
{
public:
[[nodiscard]]
static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
static Mat4X4 calc_look_at_mat(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
[[nodiscard]]
static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;

17
include/omath/linear_algebra/mat.hpp
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@@ -675,6 +675,23 @@ namespace omath
{ 0.f, 0.f, 0.f, 1.f }
};
}
template<class T = float, MatStoreType St = MatStoreType::COLUMN_MAJOR>
Mat<4, 4, T, St> mat_look_at_left_handed(const Vector3<T>& eye, const Vector3<T>& center, const Vector3<T>& up)
{
const Vector3<T> f = (center - eye).normalized();
const Vector3<T> s = f.cross(up).normalized();
const Vector3<T> u = s.cross(f);
return mat_camera_view<T, St>(f, s, u, eye);
}
template<class T = float, MatStoreType St = MatStoreType::COLUMN_MAJOR>
Mat<4, 4, T, St>mat_look_at_right_handed(const Vector3<T>& eye, const Vector3<T>& center, const Vector3<T>& up)
{
const Vector3<T> f = (center - eye).normalized();
const Vector3<T> s = f.cross(up).normalized();
const Vector3<T> u = s.cross(f);
return mat_camera_view<T, St>(-f, s, u, eye);
}
} // namespace omath

9
include/omath/projection/camera.hpp
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@@ -36,12 +36,12 @@ namespace omath::projection
requires(const Vector3<float>& cam_origin, const Vector3<float>& look_at, const ViewAnglesType& angles,
const FieldOfView& fov, const ViewPort& viewport, float znear, float zfar) {
// Presence + return types
{ T::calc_look_at_angle(cam_origin, look_at) } -> std::same_as<ViewAnglesType>;
{ T::calc_look_at_mat(cam_origin, look_at) } -> std::same_as<MatType>;
{ T::calc_view_matrix(angles, cam_origin) } -> std::same_as<MatType>;
{ T::calc_projection_matrix(fov, viewport, znear, zfar) } -> std::same_as<MatType>;
// Enforce noexcept as in the trait declaration
requires noexcept(T::calc_look_at_angle(cam_origin, look_at));
requires noexcept(T::calc_look_at_mat(cam_origin, look_at));
requires noexcept(T::calc_view_matrix(angles, cam_origin));
requires noexcept(T::calc_projection_matrix(fov, viewport, znear, zfar));
};
@@ -64,8 +64,9 @@ namespace omath::projection
void look_at(const Vector3<float>& target)
{
m_view_angles = TraitClass::calc_look_at_angle(m_origin, target);
m_view_projection_matrix = std::nullopt;
m_view_projection_matrix = TraitClass::calc_projection_matrix(m_field_of_view, m_view_port,
m_near_plane_distance, m_far_plane_distance)
* TraitClass::calc_look_at_mat(m_origin, target);
}
protected: