Overview
This section presents options that refine the description of the render camera.
The Camera attributes.
Shutter
The Shutter camera attributes.
Shutter Angle
The angle of the opening in a rotary shutter disc, in degrees. A value of 360 degrees means that the whole frame duration is used as the exposure time.
Shutter Opening Efficiency
Shutter Closing Efficiency
Sets how “efficient” the shutter of the camera is, at opening and closing times. ‘1.0’ is maximum efficiency, meaning that the shutter of the camera opens and closes faster than speed of light, which is a non-natural shutter. Lower values, such as the default value of ‘0.75’, will simulate slower opening camera shutter and produces softer motion blurs, closer to what is expected in real life cameras.
Lens
The Lens camera attributes.
Use Finite Number of Blades
Turning this attribute on allows customization of the aperture shape using the following attributes. This attribute is off by default, which produces a perfectly round aperture.
Number of Blades
The aperture is shaped after a regular polygon; this attribute specifies how many sides this polygon has. This can also been seen as the number of blades of the diaphragm that controls the aperture. The minimum number of blades is 3, which produces triangular out-of-focus highlights.
Rotation
The angle of the rotation to apply on the aperture, in degrees.
Distortion Map
Projection
The Projection camera attributes.
Projection Type
Several projection types are available. The possible values are detailed in a table below, along with how the camera's fov attribute and the Auxiliary Field of View attribute are interpreted in each case.
Option |
Description | fov interpretation | Auxiliary Field of View interpretation |
|---|---|---|---|
| Perspective | A perspective camera. | Standard. | Ignored. |
| Othographic | An orthographic camera. | Standard. | Ignored. |
Cylindrical | The vertical axis uses the projection specified by the standard Maya attributes. The horizontal axis uses a spherical projection. | Defines the vertical field of view. | Defines the horizontal field of view. |
Fisheye stereopgrahic | A stereographic fisheye projection. Maintains angles. | Standard. | Ignored. |
| Fisheye equidistant | An equidistant fisheye projection. Maintains angular distances. | Standard. | Ignored. |
| Fisheye equisolid | An equisolid angle fisheye projection. Maintains surface relations. | Standard. | Ignored. |
| Fisheye orthographic | An orthographic fisheye projection. Maintains planar illuminance. | Standard. | Ignored. |
| Spherical | A latitude/longitude spherical projection. Implies a 360 degree field of view. | Ignored. | Ignored. |
The available projection types and their effect on fov and Auxiliary Field of View attributes.
Field of View
Specifies a field of view, in degrees. This is only used for the Cylindrical projection type.