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https://github.com/orange-cpp/omath.git
synced 2026-02-13 15:03:27 +00:00
added check, removed deprecated code
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@@ -7,7 +7,6 @@
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#include <sstream>
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#include <stdexcept>
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#include <utility>
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#include "Angles.hpp"
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#include "Vector3.hpp"
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@@ -317,42 +316,6 @@ namespace omath
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};
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}
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[[nodiscard]]
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constexpr static Mat<4, 4> TranslationMat(const Vector3& diff) noexcept
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{
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return {
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{1, 0, 0, diff.x},
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{0, 1, 0, diff.y},
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{0, 0, 1, diff.z},
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{0, 0, 0, 1},
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};
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}
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[[nodiscard]]
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constexpr static Mat<4, 4> OrientationMat(const Vector3& forward, const Vector3& right,
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const Vector3& up) noexcept
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{
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return {
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{right.x, up.x, forward.x, 0},
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{right.y, up.y, forward.y, 0},
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{right.z, up.z, forward.z, 0},
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{0, 0, 0, 1},
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};
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}
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[[nodiscard]]
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constexpr static Mat<4, 4> ProjectionMat(const Type& fieldOfView, const Type& aspectRatio, const Type& near,
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const Type& far, const Type& lensZoom) noexcept
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{
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const Type& fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2);
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const Type& frustumHeight = far - near;
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return {{-1 / (aspectRatio * fovHalfTan) * lensZoom, 0, 0, 0},
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{0, -1 / fovHalfTan * lensZoom, 0, 0},
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{0, 0, -far / frustumHeight, -1},
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{0, 0, near * far / frustumHeight, 0}};
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}
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private:
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std::array<Type, Rows * Columns> m_data;
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};
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@@ -368,19 +331,19 @@ namespace omath
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[[nodiscard]]
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constexpr static Mat<4, 1, T, St> MatColumnFromVector(const Vector3& vector) noexcept
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{
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return {
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{vector.x}, {vector.y}, {vector.z}, {1}};
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return {{vector.x}, {vector.y}, {vector.z}, {1}};
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}
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template<class T = float, MatStoreType St = MatStoreType::ROW_MAJOR>
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[[nodiscard]]
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constexpr Mat<4, 4, T, St> MatTranslation(const Vector3& diff) noexcept
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{
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return Mat<4, 4, T, St>{
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{1, 0, 0, 0},
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{0, 1, 0, 0},
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{0, 0, 1, 0},
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{diff.x, diff.y, diff.z, 1},
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}.Transposed();
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return
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{
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{1, 0, 0, diff.x},
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{0, 1, 0, diff.y},
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{0, 0, 1, diff.z},
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{0, 0, 0, 1},
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};
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}
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} // namespace omath
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@@ -4,7 +4,7 @@
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#pragma once
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#include "omath/Vector3.hpp"
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#include "omath/Mat.hpp"
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#include "omath/Angle.hpp"
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namespace omath::opengl
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{
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@@ -55,7 +55,7 @@ namespace omath::source
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{
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constexpr auto kMultiplyFactor = Type(0.75);
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const float fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2) * kMultiplyFactor;
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const Type fovHalfTan = std::tan(angles::DegreesToRadians(fieldOfView) / 2) * kMultiplyFactor;
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return {
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{-static_cast<Type>(1) / (aspectRatio * fovHalfTan), 0, 0, 0},
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@@ -31,6 +31,7 @@ namespace omath::projection
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std::invoke_result_t<ProjectionFunc, const float&, const float&, const float&, const float&>>
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class Camera
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{
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public:
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Camera(const Vector3& position, const ViewAnglesType& viewAngles, const ViewPort& viewPort,
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const Angle<float, 0.f, 180.f, AngleFlags::Clamped>& fov, const float near, const float far,
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@@ -56,15 +57,20 @@ namespace omath::projection
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{
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return GetProjectionMatrix() * GetViewMatrix();
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}
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[[nodiscard]] std::expected<Vector3, Error> WorldToScreen([[maybe_unused]] const Vector3& worldPosition) const
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[[nodiscard]] std::expected<Vector3, Error> WorldToScreen(const Vector3& worldPosition) const
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{
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using mat = std::invoke_result_t<ViewMatFunc, const ViewAnglesType&, const Vector3&>;
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Mat<4, 1> projected = GetViewProjectionMatrix() * MatColumnFromVector<float, mat::GetStoreOrdering()>(worldPosition);
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auto projected = GetViewProjectionMatrix() * MatColumnFromVector<float, mat::GetStoreOrdering()>(worldPosition);
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if (projected.At(3, 0) == 0.0f)
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return std::unexpected(Error::WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS);
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projected /= projected.At(3, 0);
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if (IsNdcOutOfBounds(projected))
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return std::unexpected(Error::WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS);
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return Vector3{++projected.At(0,0) / 2 * m_viewPort.m_width , ++projected.At(1,0) / 2 * m_viewPort.m_height, projected.At(2,0)};
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}
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@@ -75,10 +81,19 @@ namespace omath::projection
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float m_nearPlaneDistance;
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private:
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ViewAnglesType m_viewAngles;
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Vector3 m_origin;
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std::function<ViewMatFunc> CreateViewMatrix;
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std::function<ProjectionFunc> CreateProjectionMatrix;
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template<class Type>
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[[nodiscard]]
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constexpr static bool IsNdcOutOfBounds(const Type& ndc)
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{
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return std::ranges::any_of( ndc.RawArray(), [](const auto& val) { return val < -1 || val > 1; });
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}
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};
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} // namespace omath::projection
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