49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
#pragma once
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#ifndef TRACER_HPP
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#define TRACER_HPP
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#include <vector>
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#include <glm/glm.hpp>
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#include "figure.hpp"
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#include "light.hpp"
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#include "ray.hpp"
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using std::vector;
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using glm::vec2;
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using glm::vec3;
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extern const float BIAS;
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extern const vec3 BCKG_COLOR;
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class Tracer {
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public:
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int m_h;
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int m_w;
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float m_fov;
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float m_a_ratio;
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unsigned int m_max_depth;
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Tracer(): m_h(480), m_w(640), m_fov(90.0f), m_a_ratio(640.0f / 480.0f), m_max_depth(5) { }
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Tracer(int h, int w, float fov, unsigned int max_depth): m_h(h), m_w(w), m_fov(fov), m_max_depth(max_depth) {
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m_a_ratio = static_cast<float>(w) / static_cast<float>(h);
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};
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virtual ~Tracer() { }
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vec2 sample_pixel(int i, int j) const;
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virtual vec3 trace_ray(Ray & r, vector<Figure *> & v_figures, vector<Light *> & v_lights, unsigned int rec_level) const = 0;
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protected:
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float random01() const;
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float fresnel(const vec3 & i, const vec3 & n, const float ir1, const float ir2) const;
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void create_coords_system(const vec3 &n, vec3 &nt, vec3 &nb) const;
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vec3 sample_hemisphere(const float r1, const float r2) const;
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void rotate_sample(vec3 & sample, const vec3 & n) const;
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};
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#endif
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