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Feature/more constexpr (#125)

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* added constexpr

* fix

* improved stuff

* added const

* improvement

* fix

* fix

* patch
This commit is contained in:
Orange++
2025-12-24 02:32:14 +03:00
committed by GitHub
parent 897484bea1
commit d935caf1a4
36 changed files with 543 additions and 399 deletions
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34
tests/general/unit_test_line_tracer_more.cpp
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@@ -11,53 +11,53 @@ using Triangle3 = omath::Triangle<Vector3<float>>;
TEST(LineTracerMore, ParallelRayReturnsEnd)
{
// Ray parallel to triangle plane: construct triangle in XY plane and ray along X axis
Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
constexpr Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
Ray ray; ray.start = {0.f,0.f,1.f}; ray.end = {1.f,0.f,1.f};
auto hit = LineTracer::get_ray_hit_point(ray, tri);
const auto hit = LineTracer::get_ray_hit_point(ray, tri);
EXPECT_EQ(hit, ray.end);
}
TEST(LineTracerMore, UOutOfRangeReturnsEnd)
{
// Construct a ray that misses due to u < 0
Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
constexpr Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
Ray ray; ray.start = {-1.f,-1.f,-1.f}; ray.end = {-0.5f,-1.f,1.f};
auto hit = LineTracer::get_ray_hit_point(ray, tri);
const auto hit = LineTracer::get_ray_hit_point(ray, tri);
EXPECT_EQ(hit, ray.end);
}
TEST(LineTracerMore, VOutOfRangeReturnsEnd)
{
// Construct ray that has v < 0
Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
constexpr Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
Ray ray; ray.start = {2.f,2.f,-1.f}; ray.end = {2.f,2.f,1.f};
auto hit = LineTracer::get_ray_hit_point(ray, tri);
const auto hit = LineTracer::get_ray_hit_point(ray, tri);
EXPECT_EQ(hit, ray.end);
}
TEST(LineTracerMore, THitTooSmallReturnsEnd)
{
Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
constexpr Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
Ray ray; ray.start = {0.f,0.f,0.0000000001f}; ray.end = {0.f,0.f,1.f};
auto hit = LineTracer::get_ray_hit_point(ray, tri);
const auto hit = LineTracer::get_ray_hit_point(ray, tri);
EXPECT_EQ(hit, ray.end);
}
TEST(LineTracerMore, THitGreaterThanOneReturnsEnd)
{
Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
constexpr Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
// Choose a ray and compute t_hit locally to assert consistency
Ray ray; ray.start = {0.f,0.f,-1.f}; ray.end = {0.f,0.f,-0.5f};
auto hit = LineTracer::get_ray_hit_point(ray, tri);
const auto hit = LineTracer::get_ray_hit_point(ray, tri);
const float k_epsilon = std::numeric_limits<float>::epsilon();
const auto side_a = tri.side_a_vector();
const auto side_b = tri.side_b_vector();
constexpr float k_epsilon = std::numeric_limits<float>::epsilon();
constexpr auto side_a = tri.side_a_vector();
constexpr auto side_b = tri.side_b_vector();
const auto ray_dir = ray.direction_vector();
const auto p = ray_dir.cross(side_b);
const auto det = side_a.dot(p);
@@ -82,21 +82,21 @@ TEST(LineTracerMore, THitGreaterThanOneReturnsEnd)
TEST(LineTracerMore, InfiniteLengthWithSmallTHitReturnsEnd)
{
Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
Triangle3 tri2(Vector3<float>{0.f,0.f,-1e-8f}, Vector3<float>{1.f,0.f,-1e-8f}, Vector3<float>{0.f,1.f,-1e-8f});
constexpr Triangle3 tri2(Vector3<float>{0.f,0.f,-1e-8f}, Vector3<float>{1.f,0.f,-1e-8f}, Vector3<float>{0.f,1.f,-1e-8f});
Ray ray; ray.start = {0.f,0.f,0.f}; ray.end = {0.f,0.f,1.f}; ray.infinite_length = true;
// Create triangle slightly behind so t_hit <= eps
tri = tri2;
auto hit = LineTracer::get_ray_hit_point(ray, tri);
const auto hit = LineTracer::get_ray_hit_point(ray, tri);
EXPECT_EQ(hit, ray.end);
}
TEST(LineTracerMore, SuccessfulHitReturnsPoint)
{
Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
constexpr Triangle3 tri(Vector3<float>{0.f,0.f,0.f}, Vector3<float>{1.f,0.f,0.f}, Vector3<float>{0.f,1.f,0.f});
Ray ray; ray.start = {0.1f,0.1f,-1.f}; ray.end = {0.1f,0.1f,1.f};
auto hit = LineTracer::get_ray_hit_point(ray, tri);
const auto hit = LineTracer::get_ray_hit_point(ray, tri);
EXPECT_NE(hit, ray.end);
// Hit should be on plane z=0 and near x=0.1,y=0.1
EXPECT_NEAR(hit.z, 0.f, 1e-6f);