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Refraction seems to work. Still need to do a nice scene.

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Godzil
2020-02-21 22:50:12 +00:00
parent df52cb36db
commit 3db0aaaeac
9 changed files with 274 additions and 16 deletions
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21
tests/intersect_test.cpp
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@@ -205,7 +205,6 @@ TEST(IntersectTest, Precomputing_the_reflection_vector)
TEST(IntersectTest, Finding_n1_and_n2_at_various_intersections)
{
#if 0
int i;
double n1_res[6] = { 1.0, 1.5, 2.0, 2.5, 2.5, 1.5 };
double n2_res[6] = { 1.5, 2.0, 2.5, 2.5, 1.5, 1.0 };
@@ -233,9 +232,25 @@ TEST(IntersectTest, Finding_n1_and_n2_at_various_intersections)
for(i = 0; i < xs.count(); i++)
{
Computation comps = xs[i].prepareComputation(r, &xs);
Intersection inter = xs[i];
Computation comps = inter.prepareComputation(r, &xs);
ASSERT_EQ(comps.n1, n1_res[i]);
ASSERT_EQ(comps.n2, n2_res[i]);
}
#endif
}
TEST(IntersectTest, The_under_point_is_offset_below_the_surface)
{
Ray r = Ray(Point(0, 0, -5), Vector(0, 0, 1));
GlassSphere shape = GlassSphere();
shape.setTransform(translation(0, 0, 1));
Intersection i = Intersection(5, &shape);
Intersect xs = Intersect();
xs.add(i);
Computation comps = i.prepareComputation(r, &xs);
ASSERT_TRUE(double_equal(comps.underHitPoint.z, getEpsilon() / 2));
ASSERT_LT(comps.hitPoint.z, comps.underHitPoint.z);
}