bool NzLight::FrustumCull(const NzFrustumf& frustum)
{
switch (m_type)
{
case nzLightType_Directional:
return true; // Toujours visible
case nzLightType_Point:
if (!m_derivedUpdated)
UpdateDerived();
// Un test sphérique est bien plus rapide et précis que celui de la bounding box
return frustum.Contains(NzSpheref(m_derivedPosition, m_radius));
case nzLightType_Spot:
if (!m_boundingVolumeUpdated)
UpdateBoundingVolume();
return frustum.Contains(m_boundingVolume);
}
NazaraError("Invalid light type (0x" + NzString::Number(m_type, 16) + ')');
return false;
}
{
NzFrustumf frustum;
frustum.Build(NzFromDegrees(90.f), 1.f, 1.f, 1000.f, NzVector3f::Zero(), NzVector3f::UnitX());
WHEN("We ask for intersection with objects outside the frustum")
{
THEN("These results are expected")
{
NzBoundingVolumef bv(NzVector3f::Zero(), NzVector3f::Unit());
bv.Update(NzMatrix4f::Identity());
REQUIRE(nzIntersectionSide_Outside == frustum.Intersect(bv));
REQUIRE(nzIntersectionSide_Outside == frustum.Intersect(NzBoxf(NzVector3f::Zero(), NzVector3f::Unit() * 0.9f)));
NzOrientedBoxf obb(NzVector3f::Zero(), NzVector3f::Unit() * 0.9f);
obb.Update(NzMatrix4f::Identity());
REQUIRE(nzIntersectionSide_Outside == frustum.Intersect(obb));
REQUIRE(nzIntersectionSide_Outside == frustum.Intersect(NzSpheref(NzVector3f::Zero(), 0.5f)));
NzVector3f tmp = NzVector3f::Zero();
REQUIRE(nzIntersectionSide_Outside == frustum.Intersect(&tmp, 1));
tmp = NzVector3f::UnitX() * -10.f;
REQUIRE(nzIntersectionSide_Outside == frustum.Intersect(&tmp, 1));
}
}
WHEN("We ask for intersection with objects inside the frustum")
{
THEN("These results are expected")
{
NzBoundingVolumef bv(500.f, -0.5f, -0.5f, 1.f, 1.f, 1.f);
bv.Update(NzMatrix4f::Identity());
REQUIRE(nzIntersectionSide_Inside == frustum.Intersect(bv));
