mirror of
https://github.com/orange-cpp/omath.git
synced 2026-02-13 15:03:27 +00:00
38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
//
|
|
// Created by Orange on 12/4/2024.
|
|
//
|
|
#include "omath/engines/source_engine/camera.hpp"
|
|
#include "omath/engines/source_engine/formulas.hpp"
|
|
|
|
|
|
namespace omath::source_engine
|
|
{
|
|
|
|
Camera::Camera(const Vector3<float>& position, const ViewAngles& viewAngles, const projection::ViewPort& viewPort,
|
|
const projection::FieldOfView& fov, const float near, const float far) :
|
|
projection::Camera<Mat4x4, ViewAngles>(position, viewAngles, viewPort, fov, near, far)
|
|
{
|
|
}
|
|
void Camera::LookAt(const Vector3<float>& target)
|
|
{
|
|
const float distance = m_origin.DistTo(target);
|
|
const auto delta = target - m_origin;
|
|
|
|
|
|
m_viewAngles.pitch = PitchAngle::FromRadians(std::asin(delta.z / distance));
|
|
m_viewAngles.yaw = -YawAngle::FromRadians(std::atan2(delta.y, delta.x));
|
|
m_viewAngles.roll = RollAngle::FromRadians(0.f);
|
|
}
|
|
|
|
Mat4x4 Camera::CalcViewMatrix() const
|
|
{
|
|
return source_engine::CalcViewMatrix(m_viewAngles, m_origin);
|
|
}
|
|
|
|
Mat4x4 Camera::CalcProjectionMatrix() const
|
|
{
|
|
return CalcPerspectiveProjectionMatrix(m_fieldOfView.AsDegrees(), m_viewPort.AspectRatio(), m_nearPlaneDistance,
|
|
m_farPlaneDistance);
|
|
}
|
|
} // namespace omath::source
|