This page explains how Substance 3D Designer can publish packages as Substance 3D asset files, a special file format with the SBSAR extension, used within the Substance ecosystem as well as in other applications supporting it.
It's usually better to use a Substance 3D asset instead of bitmaps, as it is a lot more flexible and lightweight. If you are using them in Substance 3D Painter, Sampler or Player, it is faster to use the Send To functionality.
it is good to keep the following in mind when publishing a Substance graph:
Publishing takes some more preparation than Exporting Bitmaps. That's because your published Substance 3D assets are dynamic tools, not just a static snapshot of the current state of your textures. Specifically, you want to keep the following in mind:
Make sure graph resolutions (Output Size) are set to the Relative To parent inheritance method, which means they are dynamic and can be changed on the fly.
Once you are ready to publish, there are two ways to access the Publishing Dialog, both are through the Explorer Window.
In the Explorer window, Right-clicking on the package and choosing 
Publish .sbsar file..., alternative Hotkey Ctrl + P.
After Publishing with dialog once, you can also use 
Publish .sbsar file as previous to repeat the publishing process without seeing the dialogs, immediately publishing with the same settings.
In the Explorer window, by clicking the Publish button in the top toolbar.
After Publishing with dialog once, you can also use the Publish as previous button to repeat the publishing process without seeing the dialogs, immediately publishing with the same settings.
Before the Asset Publish Options appear, you will be prompted to save the Substance 3D file (SBS) if this has not been done, and you will be prompted where to save the Substance 3D asset. To avoid seeing the file prompts and dialog and getting your file out faster, use Publish as previous methods described above.
The following options are available:
The Random Seed exposure settings are no longer available in the Publish dialog. Instead, set your graph's random seed attribute to Absolute instead of relative to avoid it becoming available.
Some graphs in your package might not be intended for usage outside. These sub-graphs are usually meant as part of a larger whole, a subroutine of a master material.
To exclude a graph from becoming visible or usable inside an Substance 3D asset file, access that graph's properties (double click empty area in graph View or single-click the graph in the Explorer), then open the Attributes rollout. Set Exposed in SBSAR to No to hide it when published.
The Publish dialog sometimes gives warnings in yellow. Common ones are listed below, with an explanation and solution.
While the Substance 3D asset is the most powerful and most dynamic format in the Substance Ecosystem, there are some small, technical limitations to be aware of.
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