Setting Camera Properties

Once you've selected a camera, you can set the properties for each camera in your scene.

To set a camera's properties:

1. In the Schematic view, select the Reaction node.
2. Select the Cameras tab.
3. From the Cameras list, select a camera.
4. In the Cameras tab, you can set the properties for the selected camera.

   Parameter	Description
   Type	Perspective (default) This projection simulates a real physical camera. Orthographic With this projection, all camera rays are parallel, and objects do not appear to change size as they change distance from the camera. Field of view settings and depth of field settings available from the Render tab have no effect with this projection.
   Focal Length	Sets the distance for the camera's focal point. As the focal distance increases, the field of view decreases, and vice versa.
   Near Plane	Sets the minimum viewable distance from the camera. By default, the near clipping plane is close to the camera. Setting the near plane farther back will hide objects very close to the camera.
   Far Plane	Sets the maximum distance from the camera. By default, the far clipping plane is very far away, so that you can see the entire scene. Setting the far plane closer to the camera will hide objects farther away.
   Time Dilation	Modifies the motion blur that affects layers animated in the scene. You can give the layer the appearance of moving at a different speed than is set for Motion Blur in the Render tab.
   Angle of View	Lets you frame the scene, making objects appear larger or smaller in the frame.
   Input Stream	The input stream selector controls which streams of the Reaction sources are used when rendering through the given camera. You can specify an explicit stream index (Manual mode) or let the ordering of the camera in the camera list control the selection of the stream (Match Out).
   Film Back	Film Gate The format of the film gate. Horizontal/Vertical Aperture The height and width of the camera's aperture or film back, measured in inches. The Camera Aperture attribute determines the relationship between the Focal Length attribute and the Angle of View attribute. The default values are 1.417 and 0.945. Film Aspect Ratio When the aspect ratio of the film is modified, the horizontal camera aperture is modified. X = Y multiplied by the aspect ratio. The ratio of the camera aperture width divided by the camera aperture height. When changed, it dynamically adjusts the camera aperture width. Lens Squeeze RatioThe amount the camera's lens compresses the image horizontally. Most cameras do not compress the image they record, and their Lens Squeeze Ratio is 1. Some cameras (for example, anamorphic cameras), however, compress the image horizontally to record a large aspect ratio (wide) image onto a square area on film. The default value is 1. Fit Resolution Gate Controls the size of the resolution gate relative to the film gate. If the resolution gate and the film gate have the same aspect ratio, then the Film Fit setting has no effect. Film Fit Offset Offsets the resolution gate relative to the film gate either vertically (if Film Fit is Horizontal) or horizontally (if Film Fit is Vertical). Film Fit Offset has no effect if Film Fit is Fill or Overscan. Film Fit Offset is measured in inches. The default setting is 0. X & Y Film Offset Vertically and horizontally offsets the resolution gate and the film gate relative to the scene. Changing the X and Y Film Offset produces a two-dimensional track. Film Offset is measured in inches. The default setting is 0.
   Position	Translates the selected camera about the X, Y, or Z axis.
   Rotation	Rotates the selected camera about the selected axis and changes its orientation. Angles of rotation are measured in degrees.
   Pivot	Moves the selected camera's center along the X, Y, or Z axis.

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