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44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
#ifndef SPROUT_DARKROOM_CAMERAS_SIMPLE_CAMERA_HPP
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#define SPROUT_DARKROOM_CAMERAS_SIMPLE_CAMERA_HPP
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#include <sprout/config.hpp>
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#include <sprout/tuple/tuple.hpp>
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#include <sprout/darkroom/coords/vector.hpp>
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namespace sprout {
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namespace darkroom {
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namespace cameras {
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template<typename Unit = double>
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class basic_simple_camera {
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public:
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typedef Unit unit_type;
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typedef sprout::tuples::tuple<unit_type, unit_type, unit_type> position_type;
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typedef sprout::tuples::tuple<position_type, position_type> ray_type;
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private:
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unit_type far_plane_;
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public:
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SPROUT_CONSTEXPR explicit basic_simple_camera(
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unit_type const& far_plane
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)
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: far_plane_(far_plane)
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{}
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SPROUT_CONSTEXPR ray_type operator()(unit_type const& u, unit_type const& v) const {
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return ray_type(
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position_type(0, 0, 0),
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sprout::darkroom::coords::normalize(position_type(u, v, far_plane_))
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);
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}
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};
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//
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// make_simple_camera
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//
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template<typename Unit>
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SPROUT_CONSTEXPR inline sprout::darkroom::cameras::basic_simple_camera<Unit>
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make_simple_camera(Unit const& far_plane) {
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return sprout::darkroom::cameras::basic_simple_camera<Unit>(far_plane);
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}
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} // namespace cameras
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} // namespace darkroom
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} // namespace sprout
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#endif // #ifndef SPROUT_DARKROOM_CAMERAS_SIMPLE_CAMERA_HPP
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