YiPerspectiveCameraSceneNode.h

Go to the documentation of this file.

// © You i Labs Inc. 2000-2017. All rights reserved.
#ifndef _YI_PERSPECTIVE_CAMERA_SCENE_NODE_H_
#define _YI_PERSPECTIVE_CAMERA_SCENE_NODE_H_

#include "scenetree/YiAbstractCameraSceneNode.h"

class CYIPerspectiveCameraSceneNode : public CYIAbstractCameraSceneNode
{
public:
    static const float DEFAULT_FRUSTUM_DISTANCE;

    CYIPerspectiveCameraSceneNode();
    virtual ~CYIPerspectiveCameraSceneNode();

    static std::unique_ptr<CYIPerspectiveCameraSceneNode> BuildDefaultCamera(const CYIString &name, float fRegionOfInterestDistance, float fRegionOfInterestWidth, float fRegionOfInterestHeight);

    static void ConfigurePerspective(CYIPerspectiveCameraSceneNode *pCamera, float fRegionOfInterestDistance, float fRegionOfInterestWidth, float fRegionOfInterestHeight);

    void SetNearPlane(float fNearZ);

    float GetNearPlane() const;

    void SetFarPlane(float fFarZ);

    float GetFarPlane() const;

    void SetAspectRatio(float fAspectRatio);

    float GetAspectRatio() const;

    void SetFOV(float fFovYDegrees);

    float GetFOV() const;

    bool IsInViewVolume(CYISceneNode *pCandidate) const;

protected:
    virtual void TransformUpdated() override;

    virtual glm::mat4 CalculateProjectionMatrix() const override;

    virtual CYIString GetDumpTreeString() const override;

private:

    //Positions relating to the camera's frustum all in world space
    glm::vec3 m_nearPlaneNormal;
    glm::vec3 m_farPlaneNormal;
    glm::vec3 m_topPlaneNormal;
    glm::vec3 m_bottomPlaneNormal;
    glm::vec3 m_rightPlaneNormal;
    glm::vec3 m_leftPlaneNormal;
    glm::vec3 m_worldPosition;
    glm::vec3 m_farPlaneCenter;
    glm::vec3 m_nearPlaneCenter;

    float m_fNearPlane;
    float m_fFarPlane;
    float m_fAspectRatio;
    float m_fFovY; // in degrees

    CYIAABB m_frustumBoundingBox;

    YI_TYPE_BASES(CYIPerspectiveCameraSceneNode, CYIAbstractCameraSceneNode)
};

#endif // _YI_PERSPECTIVE_CAMERA_SCENE_NODE_H_