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added ureachable

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Orange
2026-03-24 05:20:36 +03:00
parent 29b7ac6450
commit 8daba25c29
2 changed files with 23 additions and 22 deletions
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16
include/omath/linear_algebra/mat.hpp
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@@ -677,11 +677,13 @@ namespace omath
{0.f, 1.f / fov_half_tan, 0.f, 0.f}, {0.f, 1.f / fov_half_tan, 0.f, 0.f},
{0.f, 0.f, far / (far - near), -(near * far) / (far - near)}, {0.f, 0.f, far / (far - near), -(near * far) / (far - near)},
{0.f, 0.f, 1.f, 0.f}}; {0.f, 0.f, 1.f, 0.f}};
else else if constexpr (DepthRange == NDCDepthRange::NEGATIVE_ONE_TO_ONE)
return {{1.f / (aspect_ratio * fov_half_tan), 0.f, 0.f, 0.f}, return {{1.f / (aspect_ratio * fov_half_tan), 0.f, 0.f, 0.f},
{0.f, 1.f / fov_half_tan, 0.f, 0.f}, {0.f, 1.f / fov_half_tan, 0.f, 0.f},
{0.f, 0.f, (far + near) / (far - near), -(2.f * near * far) / (far - near)}, {0.f, 0.f, (far + near) / (far - near), -(2.f * near * far) / (far - near)},
{0.f, 0.f, 1.f, 0.f}}; {0.f, 0.f, 1.f, 0.f}};
else
std::unreachable();
} }
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR,
@@ -697,11 +699,13 @@ namespace omath
{0.f, 1.f / fov_half_tan, 0.f, 0.f}, {0.f, 1.f / fov_half_tan, 0.f, 0.f},
{0.f, 0.f, -far / (far - near), -(near * far) / (far - near)}, {0.f, 0.f, -far / (far - near), -(near * far) / (far - near)},
{0.f, 0.f, -1.f, 0.f}}; {0.f, 0.f, -1.f, 0.f}};
else else if constexpr (DepthRange == NDCDepthRange::NEGATIVE_ONE_TO_ONE)
return {{1.f / (aspect_ratio * fov_half_tan), 0.f, 0.f, 0.f}, return {{1.f / (aspect_ratio * fov_half_tan), 0.f, 0.f, 0.f},
{0.f, 1.f / fov_half_tan, 0.f, 0.f}, {0.f, 1.f / fov_half_tan, 0.f, 0.f},
{0.f, 0.f, -(far + near) / (far - near), -(2.f * near * far) / (far - near)}, {0.f, 0.f, -(far + near) / (far - near), -(2.f * near * far) / (far - near)},
{0.f, 0.f, -1.f, 0.f}}; {0.f, 0.f, -1.f, 0.f}};
else
std::unreachable();
} }
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR,
NDCDepthRange DepthRange = NDCDepthRange::NEGATIVE_ONE_TO_ONE> NDCDepthRange DepthRange = NDCDepthRange::NEGATIVE_ONE_TO_ONE>
@@ -717,7 +721,7 @@ namespace omath
{ 0.f, 0.f, static_cast<Type>(1) / (far - near), -near / (far - near) }, { 0.f, 0.f, static_cast<Type>(1) / (far - near), -near / (far - near) },
{ 0.f, 0.f, 0.f, 1.f } { 0.f, 0.f, 0.f, 1.f }
}; };
else else if constexpr (DepthRange == NDCDepthRange::NEGATIVE_ONE_TO_ONE)
return return
{ {
{ static_cast<Type>(2) / (right - left), 0.f, 0.f, -(right + left) / (right - left)}, { static_cast<Type>(2) / (right - left), 0.f, 0.f, -(right + left) / (right - left)},
@@ -725,6 +729,8 @@ namespace omath
{ 0.f, 0.f, static_cast<Type>(2) / (far - near), -(far + near) / (far - near) }, { 0.f, 0.f, static_cast<Type>(2) / (far - near), -(far + near) / (far - near) },
{ 0.f, 0.f, 0.f, 1.f } { 0.f, 0.f, 0.f, 1.f }
}; };
else
std::unreachable();
} }
template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR,
NDCDepthRange DepthRange = NDCDepthRange::NEGATIVE_ONE_TO_ONE> NDCDepthRange DepthRange = NDCDepthRange::NEGATIVE_ONE_TO_ONE>
@@ -740,7 +746,7 @@ namespace omath
{ 0.f, 0.f, -static_cast<Type>(1) / (far - near), -near / (far - near) }, { 0.f, 0.f, -static_cast<Type>(1) / (far - near), -near / (far - near) },
{ 0.f, 0.f, 0.f, 1.f } { 0.f, 0.f, 0.f, 1.f }
}; };
else else if constexpr (DepthRange == NDCDepthRange::NEGATIVE_ONE_TO_ONE)
return return
{ {
{ static_cast<Type>(2) / (right - left), 0.f, 0.f, -(right + left) / (right - left)}, { static_cast<Type>(2) / (right - left), 0.f, 0.f, -(right + left) / (right - left)},
@@ -748,6 +754,8 @@ namespace omath
{ 0.f, 0.f, -static_cast<Type>(2) / (far - near), -(far + near) / (far - near) }, { 0.f, 0.f, -static_cast<Type>(2) / (far - near), -(far + near) / (far - near) },
{ 0.f, 0.f, 0.f, 1.f } { 0.f, 0.f, 0.f, 1.f }
}; };
else
std::unreachable();
} }
template<class T = float, MatStoreType St = MatStoreType::COLUMN_MAJOR> 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) Mat<4, 4, T, St> mat_look_at_left_handed(const Vector3<T>& eye, const Vector3<T>& center, const Vector3<T>& up)

29
source/engines/opengl_engine/formulas.cpp
View File

@@ -8,15 +8,15 @@ namespace omath::opengl_engine
Vector3<float> forward_vector(const ViewAngles& angles) noexcept Vector3<float> forward_vector(const ViewAngles& angles) noexcept
{ {
const auto vec const auto vec =
= rotation_matrix(angles) * mat_column_from_vector<float, MatStoreType::COLUMN_MAJOR>(k_abs_forward); rotation_matrix(angles) * mat_column_from_vector<float, MatStoreType::COLUMN_MAJOR>(k_abs_forward);
return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)}; return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
} }
Vector3<float> right_vector(const ViewAngles& angles) noexcept Vector3<float> right_vector(const ViewAngles& angles) noexcept
{ {
const auto vec const auto vec =
= rotation_matrix(angles) * mat_column_from_vector<float, MatStoreType::COLUMN_MAJOR>(k_abs_right); rotation_matrix(angles) * mat_column_from_vector<float, MatStoreType::COLUMN_MAJOR>(k_abs_right);
return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)}; return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
} }
@@ -28,7 +28,7 @@ namespace omath::opengl_engine
} }
Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept
{ {
return mat_look_at_right_handed(cam_origin, cam_origin+forward_vector(angles), up_vector(angles)); return mat_look_at_right_handed(cam_origin, cam_origin + forward_vector(angles), up_vector(angles));
} }
Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept
{ {
@@ -39,21 +39,14 @@ namespace omath::opengl_engine
Mat4X4 calc_perspective_projection_matrix(const float field_of_view, const float aspect_ratio, const float near, Mat4X4 calc_perspective_projection_matrix(const float field_of_view, const float aspect_ratio, const float near,
const float far, const NDCDepthRange ndc_depth_range) noexcept const float far, const NDCDepthRange ndc_depth_range) noexcept
{ {
const float fov_half_tan = std::tan(angles::degrees_to_radians(field_of_view) / 2.f); if (ndc_depth_range == NDCDepthRange::NEGATIVE_ONE_TO_ONE)
return mat_perspective_right_handed<float, MatStoreType::COLUMN_MAJOR, NDCDepthRange::NEGATIVE_ONE_TO_ONE>(
field_of_view, aspect_ratio, near, far);
if (ndc_depth_range == NDCDepthRange::ZERO_TO_ONE) if (ndc_depth_range == NDCDepthRange::ZERO_TO_ONE)
return { return mat_perspective_right_handed<float, MatStoreType::COLUMN_MAJOR, NDCDepthRange::ZERO_TO_ONE>(
{1.f / (aspect_ratio * fov_half_tan), 0, 0, 0}, field_of_view, aspect_ratio, near, far);
{0, 1.f / (fov_half_tan), 0, 0},
{0, 0, -far / (far - near), -(near * far) / (far - near)},
{0, 0, -1, 0},
};
return { std::unreachable();
{1.f / (aspect_ratio * fov_half_tan), 0, 0, 0},
{0, 1.f / (fov_half_tan), 0, 0},
{0, 0, -(far + near) / (far - near), -(2.f * far * near) / (far - near)},
{0, 0, -1, 0},
};
} }
} // namespace omath::opengl_engine } // namespace omath::opengl_engine