NeL: NL3D::CInstanceLighter::CPointLightRT struct Reference

Constructor & Destructor Documentation

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NL3D::CInstanceLighter::CPointLightRT::CPointLightRT

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+ +	+ + + + +Definition at line 947 of file instance_lighter.cpp. + +References RefCount. + + 00948 { +00949 RefCount= 0; +00950 } +

Member Function Documentation

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bool NL3D::CInstanceLighter::CPointLightRT::testRaytrace	(	const CVector &	v,
		sint	instanceComputed = -1
	)

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+Tells if a point is visible from this light. NB: test first if in BSphere. If occluded or out of radius, return false, else return true. if instanceComputed>=0, then skip obstacles with InstanceId==instanceComputed. Also Skip if the light is an Ambient, and skip if the light is a spot and if the position is out of the cone +

+Definition at line 954 of file instance_lighter.cpp. +

+References BSphere, NLMISC::CBSphere::Center, NL3D::CPointLight::computeLinearAttenuation(), FaceCubeGrid, NL3D::CInstanceLighter::CTriangle::getPlane(), NL3D::CCubeGrid< const CTriangle * >::getSel(), NL3D::CPointLight::getType(), NLMISC::CBSphere::include(), NL3D::CInstanceLighter::CTriangle::InstanceId, NLMISC::CTriangle::intersect(), NL3D::CCubeGrid< const CTriangle * >::isEndSel(), NL3D::CCubeGrid< const CTriangle * >::nextSel(), PointLight, NL3D::CCubeGrid< const CTriangle * >::select(), sint, NL3D::CInstanceLighter::CTriangle::Triangle, and v. +

+Referenced by NL3D::CInstanceLighter::processIGPointLightRT(). +

00955 {
+00956         CVector dummy;
+00957 
+00958         if(!BSphere.include(v))
+00959                 return false;
+00960 
+00961         // If Ambient light, just skip
+00962         if(PointLight.getType()== CPointLight::AmbientLight)
+00963                 return false;
+00964 
+00965         // If SpotLight verify in angle radius.
+00966         if(PointLight.getType()== CPointLight::SpotLight)
+00967         {
+00968                 float   att= PointLight.computeLinearAttenuation(v);
+00969                 if (att==0)
+00970                         return false;
+00971         }
+00972 
+00973 
+00974         // Select in the cubeGrid
+00975         FaceCubeGrid.select(v);
+00976         // For all faces selected
+00977         while(!FaceCubeGrid.isEndSel())
+00978         {
+00979                 const CTriangle *tri= FaceCubeGrid.getSel();
+00980 
+00981                 // If the triangle is not a triangle of the instance currenlty lighted
+00982                 if( instanceComputed<0 || tri->InstanceId != instanceComputed )
+00983                 {
+00984                         // If intersect, the point is occluded.
+00985                         if( tri->Triangle.intersect(BSphere.Center, v, dummy, tri->getPlane()) )
+00986                                 return false;
+00987                 }
+00988 
+00989                 // next
+00990                 FaceCubeGrid.nextSel();
+00991         }
+00992 
+00993         // Ok the point is visilbe from the light
+00994         return true;
+00995 }
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Public Member Functions
	CPointLightRT ()
bool	testRaytrace (const CVector &v, sint instanceComputed=-1)
Data Fields
NLMISC::CBSphere	BSphere
uint	DstId
CCubeGrid< const CTriangle * >	FaceCubeGrid
float	OODeltaAttenuation
CPointLightNamed	PointLight
uint	RefCount

NL3D::CInstanceLighter::CPointLightRT Struct Reference

Detailed Description

Public Member Functions

Data Fields

Constructor & Destructor Documentation

Member Function Documentation

Field Documentation