WallyHackenslacker/PhotonMF
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Added image-based lighting with HDR images.

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This commit is contained in:
Miguel Angel Astor Romero
2017-01-17 17:09:25 -04:00
parent 04618e518e
commit 8d341b9a25
12 changed files with 177 additions and 77 deletions
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16
whitted_tracer.cpp
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@@ -9,7 +9,7 @@ using namespace glm;
WhittedTracer::~WhittedTracer() { }
vec3 WhittedTracer::trace_ray(Ray & r, vector<Figure *> & v_figures, vector<Light *> & v_lights, unsigned int rec_level) const {
vec3 WhittedTracer::trace_ray(Ray & r, vector<Figure *> & v_figures, vector<Light *> & v_lights, Environment * e, unsigned int rec_level) const {
float t, _t;
Figure * _f;
vec3 n, color, i_pos, ref, dir_diff_color, dir_spec_color;
@@ -60,7 +60,7 @@ vec3 WhittedTracer::trace_ray(Ray & r, vector<Figure *> & v_figures, vector<Ligh
// Determine the specular reflection color.
if (_f->m_mat->m_rho > 0.0f && rec_level < m_max_depth) {
rr = Ray(normalize(reflect(r.m_direction, n)), i_pos + n * BIAS);
color += _f->m_mat->m_rho * trace_ray(rr, v_figures, v_lights, rec_level + 1);
color += _f->m_mat->m_rho * trace_ray(rr, v_figures, v_lights, e, rec_level + 1);
} else if (_f->m_mat->m_rho > 0.0f && rec_level >= m_max_depth)
return vec3(0.0f);
@@ -71,14 +71,14 @@ vec3 WhittedTracer::trace_ray(Ray & r, vector<Figure *> & v_figures, vector<Ligh
// Determine the specular reflection color.
if (kr > 0.0f && rec_level < m_max_depth) {
rr = Ray(normalize(reflect(r.m_direction, n)), i_pos + n * BIAS);
color += kr * trace_ray(rr, v_figures, v_lights, rec_level + 1);
color += kr * trace_ray(rr, v_figures, v_lights, e, rec_level + 1);
} else if (rec_level >= m_max_depth)
return vec3(0.0f);
// Determine the transmission color.
if (_f->m_mat->m_refract && kr < 1.0f && rec_level < m_max_depth) {
rr = Ray(normalize(refract(r.m_direction, n, r.m_ref_index / _f->m_mat->m_ref_index)), i_pos - n * BIAS, _f->m_mat->m_ref_index);
color += (1.0f - kr) * trace_ray(rr, v_figures, v_lights, rec_level + 1);
color += (1.0f - kr) * trace_ray(rr, v_figures, v_lights, e, rec_level + 1);
} else if (rec_level >= m_max_depth)
return vec3(0.0f);
@@ -87,6 +87,10 @@ vec3 WhittedTracer::trace_ray(Ray & r, vector<Figure *> & v_figures, vector<Ligh
// Return final color.
return color;
} else
return BCKG_COLOR;
} else {
if (e != NULL)
return e->get_color(r);
else
return vec3(0.0f);
}
}