org.jpbrt.cameras
Class OrthoCamera

java.lang.Object
  org.jpbrt.core.Camera
      org.jpbrt.core.ProjectiveCamera
          org.jpbrt.cameras.OrthoCamera

public class OrthoCamera
extends ProjectiveCamera

Takes a rectangular region of the scene and projects it onto the front face of the box that defines the region. It does not give the effect of foreshorting, but it does preserve parallel lines and relative distance between objects.

References:

• M. Pharr, G. Humphreys. (2010). Physically Based Rendering, 2nd Edition. Morgan Kaufmann.
  CHAPTER 06.

Version:

1.0 2010-09-09 Created.

Author:

Werner Randelshofer

Field Summary

Fields inherited from class org.jpbrt.core.ProjectiveCamera

cameraToScreen, focalDistance, lensRadius, rasterToCamera, rasterToScreen, screenToRaster

Fields inherited from class org.jpbrt.core.Camera

cameraToWorld, film, shutterClose, shutterOpen

Constructor Summary

OrthoCamera(AnimatedTransform cam2world, float[] screenWindow, float sopen, float sclose, float lensr, float focald, Film f)

Method Summary

float	generateRay(CameraSample sample, Ray ray) page 264.
float	generateRayDifferential(CameraSample sample, RayDifferential ray)

Methods inherited from class org.jpbrt.core.ProjectiveCamera

toString

Methods inherited from class org.jpbrt.core.Camera

getFilm, setFilm

Methods inherited from class java.lang.Object

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

Constructor Detail

OrthoCamera

public OrthoCamera(AnimatedTransform cam2world,
                   float[] screenWindow,
                   float sopen,
                   float sclose,
                   float lensr,
                   float focald,
                   Film f)

Method Detail

generateRay

public float generateRay(CameraSample sample,
                         Ray ray)

page 264.

Specified by:

generateRay in class Camera

Returns:

A weight for the effect that light arriving at the film plane along the generated ray will have on the final image. Most cameras always return a value of one, but cameras that simulate real physical lens systems might need to set this value based on the optics and the geometry of the virtual lens system.

generateRayDifferential

public float generateRayDifferential(CameraSample sample,
                                     RayDifferential ray)

Overrides:

generateRayDifferential in class Camera