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Shutter
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 (this yields maximum motion blur). A value of 180 degrees means half the frame duration will be exposed for rendering (thus reducing the motion blur).
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 instantaneously, and then closes instantaneously, 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 Aperture
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
This is a lens distortion map which makes it easier to match a specific live camera.
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Camera lens distortion is sometimes done in a post-processing step but this necessitates to render images at a larger resolution, which is wasteful. Using the Distortion Map is the most efficient mean to accomplish this effect and also produces better quality. |
F-stop
Specifies the camera aperture.
Focal Length
The len's focal length, in millimeters.
Focal Distance
The distance at which objects in front of the camera will be in focus.
Projection
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
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Description
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fov
interpretation
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Auxiliary Field of View
interpretation
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Cylindrical
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Fisheye stereopgrahic
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The available projection types and their effect on fov and Auxiliary Field of View attributes.
Auxiliary Field of View
Specifies a field of view, in degrees. This is only used for the Cylindrical projection type.