39 lines
640 B
C++
39 lines
640 B
C++
#pragma once
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#ifndef FIGURE_HPP
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#define FIGURE_HPP
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#include <glm/vec3.hpp>
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#include "ray.hpp"
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#include "material.hpp"
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using glm::vec3;
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class Figure {
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public:
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Material * m_mat;
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Figure(Material * mat = NULL): m_inv_area(0.0f) {
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m_mat = mat == NULL ? new Material() : mat;
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}
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virtual ~Figure() {
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delete m_mat;
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}
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virtual float pdf() const {
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return m_inv_area;
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}
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virtual bool intersect(Ray & r, float & t) const = 0;
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virtual vec3 normal_at_int(Ray & r, float & t) const = 0;
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virtual vec3 sample_at_surface() const = 0;
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protected:
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float m_inv_area;
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virtual void calculate_inv_area() = 0;
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};
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#endif
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