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Orange
2024-12-01 04:10:25 +03:00
parent 46b4eb9151
commit 339dbade7e
2 changed files with 12 additions and 7 deletions
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11
include/omath/projection/Camera.hpp
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@@ -52,13 +52,18 @@ namespace omath::projection
return CreateProjectionMatrix(m_fieldOfView.AsDegrees(), m_viewPort.AspectRatio(), m_nearPlaneDistance, m_farPlaneDistance);
}
[[nodiscard]] auto GetViewProjectionMatrix() const
{
return GetProjectionMatrix() * GetViewMatrix().Transposed();
}
[[nodiscard]] std::expected<Vector3, Error> WorldToScreen([[maybe_unused]] const Vector3& worldPosition) const
{
using mat = std::invoke_result_t<ViewMatFunc, const ViewAnglesType&, const Vector3&>;
const auto vecAsMatrix = MatColumnFromVector<float, mat::GetStoreOrdering()>(worldPosition);
const auto projected = GetViewMatrix().Transposed() * vecAsMatrix;
Mat<4, 1> projected = GetViewProjectionMatrix() * MatColumnFromVector<float, mat::GetStoreOrdering()>(worldPosition);
if (projected.At(3, 0) == 0.0f)
return std::unexpected(Error::WORLD_POSITION_IS_OUT_OF_SCREEN_BOUNDS);
projected /= projected.At(3, 0);
return Vector3{projected.At(0,0), projected.At(1,0), projected.At(2,0)};
}