src/o3d/deriv_vertex.hpp


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#ifndef O3D_DERIV_VERTEX_HPP
#define O3D_DERIV_VERTEX_HPP

#include "math/vector.hpp"

namespace engine::o3d {

template<engine::math::VectorTypeConcept VectorType>
struct DerivedVertex {
    VectorType vertex;
    float b0, b1;

    constexpr DerivedVertex() {}

    constexpr DerivedVertex(const VectorType& vertex, float b0, float b1) : vertex { vertex }, b0 { b0 }, b1 { b1 } {}
};

template<>
struct DerivedVertex<engine::math::Vector4> {
    engine::math::Vector4 vertex;
    float b0, b1;

    constexpr DerivedVertex() {}

    constexpr DerivedVertex(const engine::math::Vector4& vertex, float b0, float b1) : vertex { vertex }, b0 { b0 }, b1 { b1 } {}

    constexpr DerivedVertex<engine::math::Vector3> div_by_w() const & {
        return { vertex.div_by_w(), b0, b1 };
    }
};

}

#endif // O3D_DERIV_VERTEX_HPP