C# Class world3D.Camera

Represents a camera - an imaginary observer of a scene in 3D space. The camera uses perspective projection.

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Méthodes publiques

Méthode	Description
Camera ( float nearPlane, float farPlane, Vector3 pos, Vector3 lookAt, float ratio )	Constructs a new camera with common properties.
getEyeVector ( ) : Vector3	Returns the eye vector. That's a normalized vector pointing from the look-at point towards the camera's position.
getFov ( ) : float	Returns the field of vision of this camera in radians.
getLookAt ( ) : Vector3	Returns the camera's look-at point.
getPosition ( ) : Vector3	Returns the camera's position.
getProjectionMatrix ( ) : Matrix	Returns the projection matrix of this camera.
getViewMatrix ( ) : Matrix	Returns the view matrix of this camera.
getViewProjectionMatrix ( ) : Matrix	Retuns the view matrix multiplied by the projection matrix.
setFov ( float newFov ) : void	Sets the field of vision of the camera in radians.
setLookAt ( Vector3 newLookAt ) : void	Sets the point the camera looks-at.
setPosition ( Vector3 newPosition ) : void	Sets the camera's position.
update ( GameTime time, int horRes, int vertRes ) : void	Used to animate camera movement which is caused by user input. The user can steer the camera with the mouse: By clicking and holding the left mouse button and then dragging the mouse, the camera will rotate around its look-at point. The scroll wheel can be used to zoom in and out of the scene. Note: Scrolling doesn't change the camera's fov, but its distance from its look-at position.

Private Methods

Méthode	Description
updateMatrices ( ) : void	Caches the view, projection and viewProjection matrices after each change to data which they depend on (like position for example).

Method Details

Camera() public méthode

Constructs a new camera with common properties.

public Camera ( float nearPlane, float farPlane, Vector3 pos, Vector3 lookAt, float ratio )
nearPlane	float	Near clipping plane distance.
farPlane	float	Far clipping plane distance.
pos	Vector3	Position of the camera.
lookAt	Vector3	Target the camera is pointing at.
ratio	float	Aspect ratio of the projection (width/height)

getEyeVector() public méthode

Returns the eye vector. That's a normalized vector pointing from the look-at point towards the camera's position.

public getEyeVector ( ) : Vector3
Résultat	Vector3

getFov() public méthode

Returns the field of vision of this camera in radians.

public getFov ( ) : float
Résultat	float

getLookAt() public méthode

Returns the camera's look-at point.

public getLookAt ( ) : Vector3
Résultat	Vector3

getPosition() public méthode

Returns the camera's position.

public getPosition ( ) : Vector3
Résultat	Vector3

getProjectionMatrix() public méthode

Returns the projection matrix of this camera.

public getProjectionMatrix ( ) : Matrix
Résultat	Matrix

getViewMatrix() public méthode

Returns the view matrix of this camera.

public getViewMatrix ( ) : Matrix
Résultat	Matrix

getViewProjectionMatrix() public méthode

Retuns the view matrix multiplied by the projection matrix.

public getViewProjectionMatrix ( ) : Matrix
Résultat	Matrix

setFov() public méthode

Sets the field of vision of the camera in radians.

public setFov ( float newFov ) : void
newFov	float	Field of vision in radians.
Résultat	void

setLookAt() public méthode

Sets the point the camera looks-at.

public setLookAt ( Vector3 newLookAt ) : void
newLookAt	Vector3	The new look-at point.
Résultat	void

setPosition() public méthode

Sets the camera's position.

public setPosition ( Vector3 newPosition ) : void
newPosition	Vector3	The camera's new position.
Résultat	void

update() public méthode

Used to animate camera movement which is caused by user input. The user can steer the camera with the mouse: By clicking and holding the left mouse button and then dragging the mouse, the camera will rotate around its look-at point. The scroll wheel can be used to zoom in and out of the scene. Note: Scrolling doesn't change the camera's fov, but its distance from its look-at position.

public update ( GameTime time, int horRes, int vertRes ) : void
time	GameTime	Elapsed time since last frame.
horRes	int	Horizontal resolution of the screen.
vertRes	int	Vertical resolution of the screen.
Résultat	void