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Math/Frustum: Fix Contains(Box) and Intersect(points, n)

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This commit is contained in:
SirLynix
2023-06-25 09:50:10 +02:00
parent 4494249dc1
commit 161c4f6aca
2 changed files with 50 additions and 21 deletions
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38
tests/UnitTests/Engine/Math/FrustumTest.cpp
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@@ -10,12 +10,42 @@ SCENARIO("Frustum", "[MATH][FRUSTUM]")
WHEN("We ask for intersection with objects outside the frustum")
{
GIVEN("Bounding volumes")
{
Nz::BoundingVolumef bv(Nz::Boxf(Nz::Vector3f::Zero(), Nz::Vector3f::Unit() * 10.f));
bv.Update(Nz::Matrix4f::Identity());
CHECK_FALSE(frustum.Contains(bv));
CHECK(frustum.Intersect(bv) == Nz::IntersectionSide::Intersecting);
bv.Update(Nz::Matrix4f::Translate(Nz::Vector3f::UnitX() * -50.f));
CHECK_FALSE(frustum.Contains(bv));
CHECK(frustum.Intersect(bv) == Nz::IntersectionSide::Outside);
bv.Update(Nz::Matrix4f::Translate(Nz::Vector3f::UnitX() * 50.f));
CHECK(frustum.Contains(bv));
CHECK(frustum.Intersect(bv) == Nz::IntersectionSide::Inside);
}
GIVEN("Boxes")
{
Nz::Boxf insideBox(Nz::Vector3f::UnitX() * 50.f, Nz::Vector3f::Unit() * 10.f);
Nz::Boxf intersectingBox(Nz::Vector3f::Zero(), Nz::Vector3f::Unit() * 10.f);
Nz::Boxf outsideBox(Nz::Vector3f::UnitX() * -50.f, Nz::Vector3f::Unit() * 10.f);
CHECK(frustum.Contains(insideBox));
CHECK_FALSE(frustum.Contains(intersectingBox));
CHECK_FALSE(frustum.Contains(outsideBox));
CHECK(frustum.Intersect(insideBox) == Nz::IntersectionSide::Inside);
CHECK(frustum.Intersect(intersectingBox) == Nz::IntersectionSide::Intersecting);
CHECK(frustum.Intersect(outsideBox) == Nz::IntersectionSide::Outside);
}
THEN("These results are expected")
{
Nz::BoundingVolumef bv(Nz::Boxf(Nz::Vector3f::Zero(), Nz::Vector3f::Unit()));
bv.Update(Nz::Matrix4f::Identity());
REQUIRE(Nz::IntersectionSide::Outside == frustum.Intersect(bv));
REQUIRE(Nz::IntersectionSide::Outside == frustum.Intersect(Nz::Boxf(Nz::Vector3f::Zero(), Nz::Vector3f::Unit() * 0.9f)));
Nz::OrientedBoxf obb(Nz::Boxf(Nz::Vector3f::Zero(), Nz::Vector3f::Unit() * 0.9f));
obb.Update(Nz::Matrix4f::Identity());
REQUIRE(Nz::IntersectionSide::Outside == frustum.Intersect(obb));