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Made bounding volume handing part of SceneNodes

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Former-commit-id: d09d06ac4515ce09aa16fd92dd045c2a06730a99
This commit is contained in:
Lynix
2015-01-20 20:35:16 +01:00
parent bce3cadfd5
commit 8a3c410d60
19 changed files with 127 additions and 229 deletions
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93
src/Nazara/Graphics/Light.cpp
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@@ -14,11 +14,11 @@
#include <Nazara/Graphics/Debug.hpp>
///TODO: Utilisation des UBOs
///TODO: Scale ?
NzLight::NzLight(nzLightType type) :
m_type(type),
m_color(NzColor::White),
m_boundingVolumeUpdated(false),
m_ambientFactor((type == nzLightType_Directional) ? 0.2f : 0.f),
m_attenuation(0.9f),
m_diffuseFactor(1.f),
@@ -31,9 +31,7 @@ m_radius(5.f)
NzLight::NzLight(const NzLight& light) :
NzSceneNode(light),
m_type(light.m_type),
m_boundingVolume(light.m_boundingVolume),
m_color(light.m_color),
m_boundingVolumeUpdated(light.m_boundingVolumeUpdated),
m_ambientFactor(light.m_ambientFactor),
m_attenuation(light.m_attenuation),
m_diffuseFactor(light.m_diffuseFactor),
@@ -112,14 +110,6 @@ float NzLight::GetAttenuation() const
return m_attenuation;
}
const NzBoundingVolumef& NzLight::GetBoundingVolume() const
{
if (!m_boundingVolumeUpdated)
UpdateBoundingVolume();
return m_boundingVolume;
}
NzColor NzLight::GetColor() const
{
return m_color;
@@ -251,11 +241,45 @@ bool NzLight::FrustumCull(const NzFrustumf& frustum) const
return false;
}
void NzLight::InvalidateNode()
void NzLight::MakeBoundingVolume() const
{
NzSceneNode::InvalidateNode();
switch (m_type)
{
case nzLightType_Directional:
m_boundingVolume.MakeInfinite();
break;
m_boundingVolumeUpdated = false;
case nzLightType_Point:
{
NzVector3f radius(m_radius);
m_boundingVolume.Set(-radius, radius);
break;
}
case nzLightType_Spot:
{
// On forme une boite sur l'origine
NzBoxf box(NzVector3f::Zero());
// On calcule le reste des points
NzVector3f base(NzVector3f::Forward()*m_radius);
// Il nous faut maintenant le rayon du cercle projeté à cette distance
// Tangente = Opposé/Adjaçent <=> Opposé = Adjaçent*Tangente
float radius = m_radius*std::tan(NzDegreeToRadian(m_outerAngle));
NzVector3f lExtend = NzVector3f::Left()*radius;
NzVector3f uExtend = NzVector3f::Up()*radius;
// Et on ajoute ensuite les quatres extrémités de la pyramide
box.ExtendTo(base + lExtend + uExtend);
box.ExtendTo(base + lExtend - uExtend);
box.ExtendTo(base - lExtend + uExtend);
box.ExtendTo(base - lExtend - uExtend);
m_boundingVolume.Set(box);
break;
}
}
}
void NzLight::Register()
@@ -269,46 +293,7 @@ void NzLight::Unregister()
void NzLight::UpdateBoundingVolume() const
{
if (m_boundingVolume.IsNull())
{
switch (m_type)
{
case nzLightType_Directional:
m_boundingVolume.MakeInfinite();
m_boundingVolumeUpdated = true;
return; // Rien d'autre à faire
case nzLightType_Point:
{
NzVector3f radius(m_radius);
m_boundingVolume.Set(-radius, radius);
break;
}
case nzLightType_Spot:
{
// On forme une boite sur l'origine
NzBoxf box(NzVector3f::Zero());
// On calcule le reste des points
NzVector3f base(NzVector3f::Forward()*m_radius);
// Il nous faut maintenant le rayon du cercle projeté à cette distance
// Tangente = Opposé/Adjaçent <=> Opposé = Adjaçent*Tangente
float radius = m_radius*std::tan(NzDegreeToRadian(m_outerAngle));
NzVector3f lExtend = NzVector3f::Left()*radius;
NzVector3f uExtend = NzVector3f::Up()*radius;
// Et on ajoute ensuite les quatres extrémités de la pyramide
box.ExtendTo(base + lExtend + uExtend);
box.ExtendTo(base + lExtend - uExtend);
box.ExtendTo(base - lExtend + uExtend);
box.ExtendTo(base - lExtend - uExtend);
m_boundingVolume.Set(box);
break;
}
}
}
MakeBoundingVolume();
switch (m_type)
{