A procedural node that is capable of reading USD files.
To export the scene/selection as a .usd file enable .ass/.usd File in Render Setup: Arnold -> Archive.
Path
The path to the USD file.
Object Path
Determines which USD primitive(s) are rendered. When empty (default), it will render the whole USD file.
Frame
The frame number to expand in the procedural.
Clear Controller
By default, the frame parameter is linked against the animation timeline frame. This button unlocks that link.
Namespace
This custom namespace can be used instead of the procedural name, to reference contents through absolute or relative paths.
Debug
Dumps verbose logs about the USD nodes being created.
Up Axis:
The Up Axis for the procedural. Z is the default.
Select Operator
Gives the ability to connect Procedural/Alembic nodes in the Operator Graph Editor.
Choose which Procedural to use
From the Operator Graph Editor, you can list the objects connected to the operator.
In this case, there are three INodes, two of them being 3ds MAX instances of the same Arnold Alembic object.
Viewport
Procedural/Alembic files can be introspected to retrieve geometry and display it in the viewport.
Display Mode
The available viewport display modes are:
- Bounding Box (Fast): Displays the contents as a bounding box. It does not need the full ass file load, it simply looks for "bounds" being present. If it is not, it keeps the previous behavior.
- Bounding Box (Content List): Displays the contents as a bounding box and in the content list.
- Points: Displays the contents as points.
- Wireframe: Displays the contents as a wireframe.
- Shape: Displays as a shape with full shading.
Bounding Box Threshold (ratio of screen size)
Defines how much to extend the bounding box of the object. The default value is 0.02.
Animation Cache Size (in frames)
Animation frames load on demand and are kept in a cache of the size defined in the UI. If the cache is not used, the data is always trashed (same as the cache size is 1).
Content
Shows the contents of the file. The content tree view selection cannot be used for selection. Double-clicking copies the sub-node name (path) and can be pasted in an operator.