raytracer/include/lighting.h

#pragma once

#include <glm/glm.hpp>

namespace lighting {
    inline float point_light(const glm::vec3 pos, const glm::vec3 light, const glm::vec3 normal) {
        const glm::vec3 dir = glm::normalize(light - pos);
        const float n_dot_l = glm::max(glm::dot(normal, dir), 0.0f);

        return n_dot_l;
    }
}; // namespace lighting