vtCamera Class Reference
[Scene Graph]

Inheritance diagram for vtCamera:

[legend]List of all members.

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Detailed Description

A Camera is analogous to a physical camera: it description the location of a point from which the scene is rendered. It can either be a perspective or orthographic camera, and it very easy to control since it inherits all the methods of a transform (vtTransform).

Although the camera is a node, this is purely for convenience. You do not have to place the camera node in your scene graph. You may, however, tell your scene (vtScene) which camera to use. The scene produces a default camera which is used unless you tell it otherwise.

Public Member Functions
void	SetHither (float f)
float	GetHither () const
void	SetYon (float f)
float	GetYon () const
void	SetFOV (float f)
float	GetFOV () const
float	GetVertFOV () const
void	SetOrtho (bool bOrtho)
bool	IsOrtho () const
void	SetWidth (float f)
float	GetWidth () const
void	ZoomToSphere (const FSphere &sphere, float fPitch=0.0f)

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Member Function Documentation

float vtCamera::GetFOV (   )  const

Return the camera's horizontal field of view (FOV) in radians.

float vtCamera::GetHither (   )  const

Get the hither (near) clipping plane distance.

float vtCamera::GetVertFOV (   )  const

Return the camera's vertical field of view (FOV) in radians.

float vtCamera::GetWidth (   )  const

Get the view width of an orthographic camera.

float vtCamera::GetYon (   )  const

Get the yon (far) clipping plane distance.

bool vtCamera::IsOrtho (   )  const

Return true if the camera is orthographic.

void vtCamera::SetFOV (  float  fov_x  )

Set the camera's horizontal field of view (FOV) in radians.

void vtCamera::SetHither (  float  f  )

Set the hither (near) clipping plane distance.

void vtCamera::SetOrtho (  bool  bOrtho  )

Set this camera to use an orthographic view. An orthographic view has no FOV angle, so Set/GetFOV have no affect. Instead, use Get/SetWidth to control the width of the orthogonal view.

void vtCamera::SetWidth (  float  fWidth  )

Set the view width of an orthographic camera.

void vtCamera::SetYon (  float  f  )

Set the yon (far) clipping plane distance.

void vtCamera::ZoomToSphere (  const FSphere &  sphere, float  fPitch = 0.0f )

Zoom (move) the camera to a sphere, generally the bounding sphere of something you want to look at. The camera will be pointing directly down the -Z axis at the center of the sphere. Parameters: sphere  The sphere to look at. fPitch  An optional pitch angle to look, in radians. For example, a pitch of -PIf/10 would be looking down at a mild angle.

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