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36 lines
1.3 KiB
C++
36 lines
1.3 KiB
C++
//
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// Created by Orange on 12/23/2024.
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//
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#include "omath/engines/OpenGL/Camera.hpp"
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#include "omath/engines/OpenGL/Formulas.hpp"
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namespace omath::opengl
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{
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Camera::Camera(const Vector3& position, const ViewAngles& viewAngles, const projection::ViewPort& viewPort,
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const Angle<float, 0, 180, AngleFlags::Clamped>& fov, const float near, const float far) :
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projection::Camera<Mat4x4, ViewAngles>(position, viewAngles, viewPort, fov, near, far)
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{
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}
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void Camera::LookAt([[maybe_unused]] const Vector3& target)
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{
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const float distance = m_origin.DistTo(target);
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const auto delta = target - m_origin;
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m_viewAngles.pitch = PitchAngle::FromRadians(std::asin(delta.z / distance));
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m_viewAngles.yaw = -YawAngle::FromRadians(std::atan2(delta.y, delta.x));
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m_viewAngles.roll = RollAngle::FromRadians(0.f);
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}
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Mat4x4 Camera::CalcViewMatrix() const
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{
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return opengl::CalcViewMatrix(m_viewAngles, m_origin);
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}
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Mat4x4 Camera::CalcProjectionMatrix() const
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{
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return CalcPerspectiveProjectionMatrix(m_fieldOfView.AsDegrees(), m_viewPort.AspectRatio(), m_nearPlaneDistance,
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m_farPlaneDistance);
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}
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} // namespace omath::opengl
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