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Overview

The RIB Archive group of attributes offer additional options to fine tune the output of RIB archives. Refer to the Section 5.3 [RIB Archives Guidelines], page 110 for more details about the purpose of a RIB Archive. The following attributes are only relevant when the Render Mode is set to Export RIB Archive Only. Refer to Render Engine.

 

The RIB Archives group



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Generate RIB Archives

When this option is off, it will be assumed that the required RIB archive file have been created previously. By default, this attribute is on.

Ignore Archived Objects

If this attribute is on, the objects defined in the Render Sets section of all RIB archive nodes that are in this render pass’ render sets will be removed from the list of objects to render, leaving only the archive to be read. Turn this option off if you want to see both the objects and the archive that they are contained in. By default this option is on.

 



Info
The following attributes are only available if the Render Mode is set to Export RIB Archive Only (see Render Engine)
:

Archive Lighting

Specifies how lighting information is outputted in the RIB archive file. The following options are available:

OptionDescription

No Lighting

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No lighting information will be written in the RIB archive file. This option is useful . Use this when the desired lighting will change from one scene to another; it will allow objects in the archive to . When reading the produced RIB archive with a RIB Archive Node, the archived objects will be lit by the light sources linked to the RIB archive node used to insert this archive in a given scenelights that are illuminating that RIB Archive node.
Light LinkingThe light linking information will be written in the RIB archive file, but not the light sources themselves. This setting allows light sources parameters (such as position, intensity, light color, etc.) to be changed after the RIB archive file has been written and still see these changes reflected in the archive content. However, the light source names must remain un- changed unchanged in the scene where the RIB archive is read back. If a RIB archive RIB archive node is used to read the archive file back in a scene, it should be linked to all of the light sources whose light linking information is archived to allow proper handling of the light linking information the archive contains. Refer to The RIB Archive Node.
Light Source & Light LinkingThe light sources and light linking information is stored in the RIB archive file. When reading the produced RIB archive with a RIB Archive Node, the archived objects will be lit independently of the lights illuminating the RIB Archive Node. This is the default.

Archive Write Mode

Controls when the RIB Archive file is written. The available values are:

OptionDescription

Reuse Existing Archive

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When this value is selected, 3Delight For Maya will check if 3Delight For Maya will look for the archive file specified in the RIB filename attribute  rendering attribute (see Render Engine). If the file exists, the only things thing done for each frame is to execute the "'Pre Frame MEL"' and the "'Post Frame MEL"' scripts. Refer to MEL Scripts.
Overwrite Existing ArchiveWhen this value is selected, the The file specified in the "RIB filename" at- tribute  rendering attribute (see Render Engine) will be overwritten every time a rendering is requested.

Archive Transforms

This attribute controls Controls whether or not the object transforms are output to the RIB archive or not. It is on by default.

Concatenate Geo Transforms

If When this attribute is on, the transforms for geometric objects are output as relative transforms. Turn this option off to output absolute transforms, in which case will force the archived objects will always to be positioned placed at their archived positionpositions, regardless of the placement of the RIB archive node Node used to read the archive back in a scene. This option is on by default.

Concatenate Lights Transforms

If this attribute is on, the transforms for light sources are output as relative transforms. Turn this option off to output absolute transforms, in which case the archived light sources will always be positioned whichwill force the archived light sources to be placed at their archived positionpositions, regardless of the placement of the RIB archive node Node used to read the archive back in a scene. This option is on by default.

Archive Geometry Shaders

When this attribute is on, the shaders of geometric objects are archived. Turning this option off will prevent the shaders from being archived, which will force the archived objects to use the shaders assigned to the RIB Archive Node used to read the produced archive. This option is on by default.

Archive Geometry Attributes

When this attribute is on, the attributes specified in a geometry attribute node attached to any archived object will be output in the RIB archive file. Turn it off to avoid outputting these attributes in the archive, which will force the archived objects to use the geometry attribute node attached to the RIB Archive Node used to read the produced RIB archive. This option is on by default.

Info
The attributes inside the 'Geometry' group of a Geometry Attribute Node have a direct effect on how the objects in Maya are translated to RenderMan primitives. For this reason, they have no effect when set on a RIB Archive Node, regardlessof the 'Archive Geometry Attributes' option.

 

* Available only with the 3Delight Studio Pro package.