Added mirror reflections.
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@@ -11,6 +11,7 @@ using glm::vec3;
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class Figure {
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public:
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vec3 color;
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float rho;
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virtual ~Figure() { }
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10
main.cpp
10
main.cpp
@@ -18,8 +18,6 @@
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using namespace std;
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using namespace glm;
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#define MAX_RECURSION 9
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static const char * OUT_FILE = "output.ppm";
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static char * input_file;
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@@ -110,24 +108,28 @@ int main(int argc, char ** argv) {
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s->set_color(1.0f, 1.0f, 0.0f);
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figures.push_back(static_cast<Figure *>(s));
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p = new Plane(vec3(0.0f, -1.0f, 0.0f), vec3(0.0f, 1.0f, 0.0f));
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p = new Plane(vec3(0.0f, -1.5f, 0.0f), vec3(0.0f, 1.0f, 0.0f));
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p->set_color(1.0f, 0.5f, 0.4f);
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figures.push_back(static_cast<Figure *>(p));
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s = new Sphere(0.0f, 0.0f, -1.0f, 0.25f);
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s->set_color(1.0f, 1.0f, 1.0f);
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s->rho = 0.1f;
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figures.push_back(static_cast<Figure *>(s));
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s = new Sphere(-1.5f, 0.0f, -2.0f, 0.5f);
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s->set_color(1.0f, 1.0f, 1.0f);
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s->rho = 0.3f;
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figures.push_back(static_cast<Figure *>(s));
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s = new Sphere(1.5f, 0.0f, -2.0f, 0.5f);
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s->set_color(1.0f, 1.0f, 1.0f);
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s->rho = 0.08f;
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figures.push_back(static_cast<Figure *>(s));
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s = new Sphere(0.0f, 1.5f, -2.0f, 0.5f);
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s->set_color(1.0f, 1.0f, 1.0f);
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s->rho = 0.5f;
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figures.push_back(static_cast<Figure *>(s));
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l = new Light();
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@@ -155,7 +157,7 @@ int main(int argc, char ** argv) {
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for (int k = 0; k < g_samples; k++) {
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sample = tracer.sample_pixel(i, j);
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r = Ray(normalize(vec3(sample, -1.0f) - vec3(0.0f, 0.0f, 0.0f)), vec3(0.0f, 0.0f, 0.0f));
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image[i][j] += tracer.trace_ray(r, figures, lights, MAX_RECURSION);
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image[i][j] += tracer.trace_ray(r, figures, lights, 0);
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#pragma omp critical
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{
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current++;
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7235
output.ppm
7235
output.ppm
File diff suppressed because one or more lines are too long
12
plane.hpp
12
plane.hpp
@@ -14,11 +14,17 @@ public:
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vec3 m_point;
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vec3 m_normal;
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Plane(): m_point(vec3(0.0f)), m_normal(0.0f, 0.0f, 1.0f) { }
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Plane(): m_point(vec3(0.0f)), m_normal(0.0f, 0.0f, 1.0f) {
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rho = 0.0f;
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}
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Plane(float x, float y, float z, float nx, float ny, float nz): m_point(vec3(x, y, z)), m_normal(normalize(vec3(nx, ny, nz))) { }
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Plane(float x, float y, float z, float nx, float ny, float nz): m_point(vec3(x, y, z)), m_normal(normalize(vec3(nx, ny, nz))) {
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rho = 0.0f;
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}
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Plane(vec3 _p, vec3 _n): m_point(_p), m_normal(normalize(_n)) { }
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Plane(vec3 _p, vec3 _n): m_point(_p), m_normal(normalize(_n)) {
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rho = 0.0f;
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}
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virtual ~Plane() { }
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@@ -13,9 +13,13 @@ public:
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vec3 m_center;
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float m_radius;
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Sphere(): m_center(vec3(0.0f)), m_radius(0.5f) { }
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Sphere(): m_center(vec3(0.0f)), m_radius(0.5f) {
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rho = 0.0f;
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}
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Sphere(float x, float y, float z, float r): m_center(vec3(x, y, z)), m_radius(r) { }
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Sphere(float x, float y, float z, float r): m_center(vec3(x, y, z)), m_radius(r) {
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rho = 0.0f;
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}
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Sphere(vec3 _c, float r): m_center(_c), m_radius(r) { }
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12
tracer.cpp
12
tracer.cpp
@@ -9,6 +9,8 @@
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#define PI 3.14159265358979f
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#define SHININESS 89.0f
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#define MAX_RECURSION 9
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#define BIAS 0.000001f
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using namespace std;
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@@ -54,7 +56,7 @@ vec3 Tracer::trace_ray(Ray & r, vector<Figure *> & vf, vector<Light *> & vl, uns
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float t, _t, n_dot_l;
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Figure * _f;
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vec3 n, color, i_pos, ref;
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Ray sr;
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Ray sr, rr;
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bool vis;
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t = numeric_limits<float>::max();
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@@ -72,6 +74,12 @@ vec3 Tracer::trace_ray(Ray & r, vector<Figure *> & vf, vector<Light *> & vl, uns
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i_pos = r.m_origin + (t * r.m_direction);
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n = _f->normal_at_int(r, t);
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if (vis && _f->rho > 0.0f && rec_level < MAX_RECURSION) {
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rr = Ray(reflect(r.m_direction, n), i_pos + n * BIAS);
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color = _f->rho * trace_ray(rr, vf, vl, rec_level + 1);
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} else if (rec_level >= MAX_RECURSION)
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return vec3(BCKG_COLOR);
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for (size_t l = 0; l < vl.size(); l++) {
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vis = true;
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sr = Ray(vl[l]->m_position, i_pos);
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@@ -83,6 +91,8 @@ vec3 Tracer::trace_ray(Ray & r, vector<Figure *> & vf, vector<Light *> & vl, uns
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}
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}
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color += 0.08f * BCKG_COLOR;
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n_dot_l = max(dot(n, vl[l]->m_position), 0.0);
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color += (vis ? 1.0f : 0.0f) * (_f->color / PI) * vl[l]->m_diffuse * n_dot_l;
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