raytracing/raytracer_challenge
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[FEAT] refraction tips7 is now working

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NADAL Jean-Baptiste
2024-03-12 16:15:53 +01:00
parent 668a51c4f7
commit 6f55253ffd
4 changed files with 17 additions and 10 deletions
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3
raytracing/src/core/intersection.cpp
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@@ -189,9 +189,10 @@ IntersectionData Intersection::prepare_computations(const Ray &a_ray, Intersecti
the_data.set_point(a_ray.position(m_distance_t));
the_data.set_eyev(-a_ray.direction());
the_data.set_normalv(m_shape->normal_at(the_data.point()));
the_data.set_inside();
the_data.set_over_point(the_data.point() + the_data.normalv() * kEpsilon);
the_data.set_under_point(the_data.point() - the_data.normalv() * kEpsilon);
the_data.set_inside();
the_data.set_reflectv(a_ray.direction().reflect(the_data.normalv()));
if (a_collection == nullptr)

2
raytracing/src/renderer/world.cpp
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@@ -234,7 +234,7 @@ Color World::refracted_color(const IntersectionData &an_intersection_data, uint3
// Find the color of the refracted ray, making sure to multiply by the transparency value
// to account for any opacity
the_color = color_at(the_refracted_ray, a_remaining - 1) * an_intersection_data.object()->material().transparency();
the_color = color_at(the_refracted_ray, a_remaining - 1) * the_transparency;
return the_color;
}

16
raytracing/src/shapes/sphere.cpp
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@@ -54,8 +54,20 @@ Intersections Sphere::local_intersect(const Ray &a_ray)
if (discriminant >= 0)
{
double the_sqrt = std::sqrt(discriminant);
the_intersections.add(Intersection((-the_b - the_sqrt) / (2 * the_a), this));
the_intersections.add(Intersection((-the_b + the_sqrt) / (2 * the_a), this));
double t1, t2;
t1 = (-the_b - the_sqrt) / (2 * the_a);
t2 = (-the_b + the_sqrt) / (2 * the_a);
if (t1 < t2)
{
the_intersections.add(Intersection(t1, this));
the_intersections.add(Intersection(t2, this));
}
else
{
the_intersections.add(Intersection(t2, this));
the_intersections.add(Intersection(t1, this));
}
}
return the_intersections;

6
tests/07_making_scene.cpp
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@@ -296,16 +296,10 @@ SCENARIO("Shading an intersection from the inside", "[features/world.feature]")
AND_WHEN("c <- shade_hit(w, comps)")
{
Color c = w.shade_hit(comps);
#if 0 // Not working anymore with shadow.
THEN("c = color(0.90498, 0.90498, 0.90498)")
{
REQUIRE(c == Color(0.90498, 0.90498, 0.90498));
}
#endif
THEN("c = color(0.1, 0.1, 0.1)")
{
REQUIRE(c == Color(0.1, 0.1, 0.1));
}
}
}
}