mirror of
				https://github.com/OpenMW/openmw.git
				synced 2025-10-31 10:26:41 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			134 lines
		
	
	
	
		
			3.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			134 lines
		
	
	
	
		
			3.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| #ifndef OPENMW_COMPONENTS_SCENEUTIL_LIGHTMANAGER_H
 | |
| #define OPENMW_COMPONENTS_SCENEUTIL_LIGHTMANAGER_H
 | |
| 
 | |
| #include <osg/Light>
 | |
| 
 | |
| #include <osg/Group>
 | |
| #include <osg/NodeVisitor>
 | |
| 
 | |
| namespace SceneUtil
 | |
| {
 | |
| 
 | |
|     // This mask should be included in the Cull and Update visitor's traversal mask if lighting is desired.
 | |
|     const int Mask_Lit = (1<<16);
 | |
| 
 | |
|     /// LightSource managed by a LightManager.
 | |
|     class LightSource : public osg::Node
 | |
|     {
 | |
|         osg::ref_ptr<osg::Light> mLight;
 | |
| 
 | |
|         // The activation radius
 | |
|         float mRadius;
 | |
| 
 | |
|         int mId;
 | |
| 
 | |
|     public:
 | |
| 
 | |
|         META_Node(SceneUtil, SceneUtil::LightSource)
 | |
| 
 | |
|         LightSource();
 | |
| 
 | |
|         LightSource(const LightSource& copy, const osg::CopyOp& copyop);
 | |
| 
 | |
|         float getRadius() const
 | |
|         {
 | |
|             return mRadius;
 | |
|         }
 | |
| 
 | |
|         void setRadius(float radius)
 | |
|         {
 | |
|             mRadius = radius;
 | |
|         }
 | |
| 
 | |
|         osg::Light* getLight()
 | |
|         {
 | |
|             return mLight;
 | |
|         }
 | |
| 
 | |
|         void setLight(osg::Light* light)
 | |
|         {
 | |
|             mLight = light;
 | |
|         }
 | |
| 
 | |
|         int getId()
 | |
|         {
 | |
|             return mId;
 | |
|         }
 | |
|     };
 | |
| 
 | |
|     /// All light sources must be a child of the LightManager node. The LightManager can be anywhere in the scene graph,
 | |
|     /// but would be typically somewhere near the top.
 | |
|     class LightManager : public osg::Group
 | |
|     {
 | |
|     public:
 | |
| 
 | |
|         META_Node(SceneUtil, SceneUtil::LightManager)
 | |
| 
 | |
|         LightManager();
 | |
| 
 | |
|         LightManager(const LightManager& copy, const osg::CopyOp& copyop);
 | |
| 
 | |
|         // Called automatically by the UpdateCallback
 | |
|         void update();
 | |
| 
 | |
|         // Called automatically by the LightSource's UpdateCallback
 | |
|         void addLight(LightSource* lightSource, osg::Matrix worldMat);
 | |
| 
 | |
|         void prepareForCamera(osg::Camera* cam);
 | |
| 
 | |
|         struct LightSourceTransform
 | |
|         {
 | |
|             LightSource* mLightSource;
 | |
|             osg::Matrix mWorldMatrix;
 | |
|             osg::BoundingSphere mViewBound;
 | |
|         };
 | |
| 
 | |
|         const std::vector<LightSourceTransform>& getLights() const;
 | |
| 
 | |
|         typedef std::vector<const LightSourceTransform*> LightList;
 | |
| 
 | |
|         osg::ref_ptr<osg::StateSet> getLightListStateSet(const LightList& lightList);
 | |
| 
 | |
|         /// Set the first light index that should be used by this manager, typically the number of directional lights in the scene.
 | |
|         void setStartLight(int start);
 | |
| 
 | |
|         int getStartLight() const;
 | |
| 
 | |
|     private:
 | |
|         // Lights collected from the scene graph. Only valid during the cull traversal.
 | |
|         std::vector<LightSourceTransform> mLights;
 | |
| 
 | |
|         bool mLightsInViewSpace;
 | |
| 
 | |
|         // < Light list hash , StateSet >
 | |
|         typedef std::map<size_t, osg::ref_ptr<osg::StateSet> > LightStateSetMap;
 | |
|         LightStateSetMap mStateSetCache;
 | |
| 
 | |
|         int mStartLight;
 | |
|     };
 | |
| 
 | |
|     class LightListCallback : public osg::NodeCallback
 | |
|     {
 | |
|     public:
 | |
|         LightListCallback()
 | |
|             : mLightManager(NULL)
 | |
|         {}
 | |
|         LightListCallback(const LightListCallback& copy, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY)
 | |
|             : osg::Object(copy, copyop), osg::NodeCallback(copy, copyop), mLightManager(copy.mLightManager)
 | |
|         {}
 | |
| 
 | |
|         META_Object(NifOsg, LightListCallback)
 | |
| 
 | |
|         void operator()(osg::Node* node, osg::NodeVisitor* nv);
 | |
| 
 | |
|     private:
 | |
|         LightManager* mLightManager;
 | |
|     };
 | |
| 
 | |
|     /// @brief Configures a light's attenuation according to vanilla Morrowind attenuation settings.
 | |
|     void configureLight(osg::Light* light, float radius, bool isExterior, bool outQuadInLin, bool useQuadratic, float quadraticValue,
 | |
|                          float quadraticRadiusMult, bool useLinear, float linearRadiusMult, float linearValue);
 | |
| 
 | |
| }
 | |
| 
 | |
| #endif
 |