A specific display's Advanced group
The Advanced group, which is collapsed by default, offers the following attributes:
Alternate Camera
This attribute can be used to specify a different camera than the Render Camera (specified in the Scene Elementsgroup) to be used for this display. This allows simultaneous multi-camera angle or stereoscopic rendering. For best performance, it is recommended to keep as many displays as possible set to <render camera>. For instance, when working with a stereoscopic project that has a "left eye" camera and a "right eye" camera, it is preferable to set the Scene Elements' Render Camera to the "left eye" camera, and alter the value of the display's Alternate Cameraonly for the ones needed the "right eye" camera (instead of having all displays overriding the render camera with either the "left eye" or the "right eye" camera). By default, the display will use the Render Camera.
Display Subset
This attribute is used to select one or several Maya sets that is used to narrow down what objects will appear in the display. Set selection is made using the 3Delight Set Selector window which is invoked by clicking on the Sets...button. The "Display Subset" option menu specify how the selected sets will be interpreted and has the following values available:
Option | Description |
|---|---|
| All Objects | All visible objects will appear in the display, disregarding any sets selec- tion made in the 3Delight Set Selector. This is the default. |
| Objects in selected sets | Only visible objects in the selected Maya sets will appear in the display. |
| Objects not in selected sets | Only visible objects that are not in the selected Maya sets will appear in the display. Put differently, all objects in the selected sets will be excluded from the display. |
Light Category
This attribute specifies a light category (see Category); only the lights of this category will appear in the display. This option requires setting the Render Engine attribute to Path Tracer (see Render Engine).
Gain
Specifies the gain. Each rendered pixel’s color will be multiplied by this value. ‘Gamma’ Specifies the gamma. Each rendered pixel’s color, once affected by "Gain", goes through a power function whose exponent is 1 / "Gamma".
Override Pixel Filter
Each display can have its own filter and filter width values. This toggle is off by default, in which case the display will use the values specified in the Quality section of the render pass. When this toggle is on, these values are overridden with the values specified in the following two attributes: ‘Pixel Filter’ ‘Filter Width’ These two attributes are identical to the "Pixel Filter" and "Pixel Filter Width" in Quality - Render Pass.
Use Matte Attribute
When this toggle is off, and if the display’s output variable is set to an arbitrary output variable, any matte attribute set on objects will be ignored. This toggle is on by default. Refer to the matte attribute in Visibility.
Exclusive Output
When this toggle is off, and if the display’s output variable is set to an arbitrary output variable, objects that do not output that variable will be black. Turning this option on will make these objects transparent. This toggle is off by default.
Associate Alpha
When this toggle is off, the color of a pixel is divided by the alpha to produce an image with an unassociated alpha channel. By default, this toggle is on.
Compute Alpha
When this attribute is on and the display’s "Output Variable" is an AOV, an alpha channel is added to the AOV. It is computed based on the existence of the output variable for a given object. This toggle is off by default. Usually, when this toggle is on, it is recommended to turn off Associate Alpha.