net.java.joglutils.msg.nodes
Class PerspectiveCamera

java.lang.Object
  net.java.joglutils.msg.nodes.Node
      net.java.joglutils.msg.nodes.Camera
          net.java.joglutils.msg.nodes.PerspectiveCamera

public class PerspectiveCamera
extends Camera

Represents a camera utilizing a perspective projection.

The default height angle is Math.PI / 4 radians (45 degrees), meaning that the camera has a total vertical field of view of 90 degrees.

Field Summary

Fields inherited from class net.java.joglutils.msg.nodes.Camera

projDirty, projMatrix, viewDirty, viewMatrix

Constructor Summary

PerspectiveCamera()

Method Summary

float	getHeightAngle() Returns the height angle, in radians, of this perspective camera.
Mat4f	getProjectionMatrix() Returns the projection matrix associated with this camera's parameters.
protected Vec3f	getRayStartPoint(Vec2f point, Vec3f unprojectedPoint) Computes the start point of a ray for picking, given a point in normalized screen coordinates ((0, 0) to (1, 1)) and a 3D point which that point unprojects to.
float	getWidthAngle() Returns the width angle, in radians, of this perspective camera, assuming the camera's currently-set aspect ratio.
float	getWidthAngle(float aspectRatio) Returns the width angle, in radians, of this perspective camera, assuming the passed-in aspect ratio.
void	render(GLRenderAction action) Support for the built-in GLRenderAction.
void	setHeightAngle(float heightAngle) Sets the height angle, in radians, of this perspective camera.

Methods inherited from class net.java.joglutils.msg.nodes.Camera

doAction, getAspectRatio, getFarDistance, getFocalDistance, getNearDistance, getOrientation, getPosition, getViewingMatrix, rayPick, setAspectRatio, setFarDistance, setFocalDistance, setNearDistance, setOrientation, setPosition, unproject, unproject

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PerspectiveCamera

public PerspectiveCamera()

Method Detail

getProjectionMatrix

public Mat4f getProjectionMatrix()

Description copied from class: Camera

Returns the projection matrix associated with this camera's parameters.

Specified by:

getProjectionMatrix in class Camera

setHeightAngle

public void setHeightAngle(float heightAngle)

Sets the height angle, in radians, of this perspective camera. The default height angle is Math.PI / 4 radians, or 45 degrees.

getHeightAngle

public float getHeightAngle()

Returns the height angle, in radians, of this perspective camera.

getWidthAngle

public float getWidthAngle(float aspectRatio)

Returns the width angle, in radians, of this perspective camera, assuming the passed-in aspect ratio.

getWidthAngle

public float getWidthAngle()

Returns the width angle, in radians, of this perspective camera, assuming the camera's currently-set aspect ratio.

getRayStartPoint

protected Vec3f getRayStartPoint(Vec2f point,
                                 Vec3f unprojectedPoint)

Description copied from class: Camera

Computes the start point of a ray for picking, given a point in normalized screen coordinates ((0, 0) to (1, 1)) and a 3D point which that point unprojects to.

Specified by:

getRayStartPoint in class Camera

render

public void render(GLRenderAction action)

Description copied from class: Node

Support for the built-in GLRenderAction. Note that supplying virtual methods in Node subclasses to support various actions is not required due to the framework supporting action methods, but for built-in actions it may make it simpler.

Overrides:

render in class Node