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			71 lines
		
	
	
	
		
			1.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			71 lines
		
	
	
	
		
			1.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
#ifndef STEREO_FRUSTUM_H
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#define STEREO_FRUSTUM_H
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#include <osg/BoundingBox>
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#include <osg/Camera>
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#include <osg/Matrix>
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#include <osg/StateSet>
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#include <osg/Vec3>
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#include <array>
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#include <map>
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#include <memory>
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namespace osg
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{
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    class FrameBufferObject;
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    class Texture2D;
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    class Texture2DMultisample;
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    class Texture2DArray;
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}
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namespace osgViewer
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{
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    class Viewer;
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}
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namespace usgUtil
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{
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    class CullVisitor;
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}
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namespace SceneUtil
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{
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    class MWShadowTechnique;
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}
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namespace Stereo
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{
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    struct MultiviewFrustumCallback;
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    struct ShadowFrustumCallback;
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    void joinBoundingBoxes(
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        const osg::Matrix& masterProjection, const osg::Matrix& slaveProjection, osg::BoundingBoxd& bb);
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    class StereoFrustumManager
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    {
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    public:
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        StereoFrustumManager(osg::Camera* camera);
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        ~StereoFrustumManager();
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        void update(std::array<osg::Matrix, 2> projections);
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        const osg::BoundingBoxd& boundingBox() const { return mBoundingBox; }
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        void setShadowTechnique(SceneUtil::MWShadowTechnique* shadowTechnique);
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        void customFrustumCallback(
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            osgUtil::CullVisitor& cv, osg::BoundingBoxd& customClipSpace, osgUtil::CullVisitor*& sharedFrustumHint);
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    private:
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        osg::ref_ptr<osg::Camera> mCamera;
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        osg::ref_ptr<SceneUtil::MWShadowTechnique> mShadowTechnique;
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        osg::ref_ptr<ShadowFrustumCallback> mShadowFrustumCallback;
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        std::map<osgUtil::CullVisitor*, osgUtil::CullVisitor*> mSharedFrustums;
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        osg::BoundingBoxd mBoundingBox;
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        std::unique_ptr<MultiviewFrustumCallback> mMultiviewFrustumCallback;
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    };
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}
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#endif
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