da, we only need to specify the root layer we want Note that since we authored defaultPrim in USD/extras/usd/examples/usdObj/ for an example file format
#PIXA PRINT CODE#
See theĪbout asset resolvers, and see the code in USD does not require that layers be files on disk. USD supports user-implementable asset path resolver and fileįormat plugins to allow site-specific customization and pipeline The layer identifier passed to () canīe any string that a path resolver plugin can resolve and a sceneĭescription file format plugin would process to populate the actual sceneĭescription. In this example we use a filename to reference the layer.
What makes a USD scene heavy/expensive?Īsset Path Resolver and File Format Plugins. Use binary “.usd” files for geometry and shading caches. Use an allocator optimized for multithreading. Why Can’t I Instance a Leaf Mesh Prim Directly?. What’s the difference between an “over” and a “typeless def” ?. When can you delete a reference (or other deletable thing)?. What happens to “overs” when their underlying prim is moved to a different location in the scenegraph?. I have some layers I want to combine: Should I use SubLayers or References?. Subtler Aspects of Scene Description and Composition. How can I convert USD files between binary and text?. What programming languages are supported?. Basic Proposal for Collection-Based Assignment. 
Generalizing Connectable Nodes Beyond UsdShade. Adapting UsdLux to the Needs of Renderers. Adapting UsdLux to Accommodate Geometry Lights. Packaging Considerations for Streaming and Encapsulation. 
Transformations, Time-sampled Animation, and Layer Offsets.Hello World Redux - Using Generic Prims.Hello World - Creating Your First USD Stage.
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