graphics
Class CCamera

class CCamera

m_FarPlane

private float m_FarPlane;

m_FOV

private float m_FOV;

m_NearPlane

private float m_NearPlane;

m_Orientation

public CMatrix3D m_Orientation;

m_ProjMat

public CMatrix3D m_ProjMat;

m_ViewFrustum

private CFrustum m_ViewFrustum;

m_ViewPort

private SViewPort m_ViewPort;

CCamera

public CCamera();

========================================================================= File : Camera.cpp Project : 0 A.D. Description : CCamera holds a view and a projection matrix. It also has a frustum which can be used to cull objects for rendering. =========================================================================

~CCamera

public ~CCamera();

BuildCameraRay

public void BuildCameraRay( CVector3D& origin, CVector3D& dir );

BuildCameraRay

public void BuildCameraRay( int px, int py, CVector3D& origin, CVector3D& dir );

GetCameraPlanePoints

public void GetCameraPlanePoints( float dist, CVector3D pts[ 4] ) const;

BuildCameraRay: calculate origin and ray direction of a ray through the pixel (px,py) on the screen

GetFarPlane

public float GetFarPlane() const;

GetFocus

public CVector3D GetFocus();

GetFOV

public float GetFOV() const;

GetFrustum

public CFrustum GetFrustum();

GetFrustumPoints

public void GetFrustumPoints( CVector3D pts[ 8] ) const;

GetNearPlane

public float GetNearPlane() const;

GetProjection

public const CMatrix3D& GetProjection() const;

GetScreenCoordinates

public void GetScreenCoordinates( const CVector3D& world, float& x, float& y ) const;

GetViewPort

public const SViewPort& GetViewPort() const;

GetWorldCoordinates

public CVector3D GetWorldCoordinates( bool aboveWater = false );

GetWorldCoordinates

public CVector3D GetWorldCoordinates( int px, int py, float h );

GetWorldCoordinates

public CVector3D GetWorldCoordinates( int px, int py, bool aboveWater = false );

LookAlong

public void LookAlong( CVector3D camera, CVector3D orientation, CVector3D up );

Render the camera's frustum

LookAt

public void LookAt( const CVector3D& camera, const CVector3D& orientation, const CVector3D& up );

Render

public void Render( uint intermediates = 0 ) const;

Render: Renders the camera's frustum in world space. The caller should set the color using glColorXy before calling Render.

Parameters:

intermediates - determines how many intermediate distance planes should be hinted at between the near and far planes

SetProjection

public void SetProjection( float nearp, float farp, float fov );

SetProjection

public void SetProjection( CMatrix3D* proj );

SetProjectionTile

public void SetProjectionTile( int tiles, int tile_x, int tile_y );

SetViewPort

public void SetViewPort( SViewPort* viewport );

GetCameraPlanePoints: return four points in camera space at given distance from camera

UpdateFrustum

public void UpdateFrustum();