CamObs.cpp

#include "CamObs.h"
#include <limits>

namespace cam {
cam::CamObs::CamObs(const util::Mat4& mat, float theta, int width, int height)
    : mat(mat)
    , theta(theta)
    , width(width)
    , height(height)
{
}

Ray cam::CamObs::create(float x, float y) const
{
    util::Vec3 d(x - width / 2, height / 2 - y, -(width / 2) / (tan(theta / 2)));
    d = mat.transformDir(d);

    return Ray(mat.position(), d, 0, std::numeric_limits<float>::infinity(), true);
}
}