Overview
The DlCameraSettings node provides 3Delight-specific parameters that refine the description of a camera.
The DlCameraSettings parameters.
Object Assignment
The first section allows specification of the camera the DlCameraSettings node will be assigned to. A scene graph location designating a camera is expected.
The object scene graph location can be specified by a few different means: Note that the assigned object should have its scene graph location defined by node placed upstream in the node graph.
Camera Settings
Shutter Opening 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. 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. 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 Type Several projection types are available. The possible values are detailed in the table below. Option Description Cylindrical Fisheye stereopgrahic Auxiliary Field of View Specifies the horizontal field of view, in degrees, of a Cylindrical projection. This attribute is ignored for the other projection types.
Shutter Closing EfficiencyLens Aperture
Projection
Perspective A perspective camera. Othographic An orthographic camera. The vertical axis uses a perspective projection. The horizontal axis uses a spherical projection. The horizontal field of view is specified by Auxiliary Field of View. A stereographic fisheye projection. Maintains angles. Fisheye equidistant An equidistant fisheye projection. Maintains angular distances. Fisheye equisolid An equisolid angle fisheye projection. Maintains surface relations. Fisheye orthographic An orthographic fisheye projection. Maintains planar illuminance. Spherical A latitude/longitude spherical projection. Implies a 360 degree field of view.