PlayCanvas Opens SuperSplat to Third Party Tools With a REST Publishing API
Michael Rubloff
PlayCanvas has released a publishing API for SuperSplat, a REST interface that lets any capture or training application upload gaussian splats straight to superspl.at. Getting a scene onto the platform previously meant exporting a file from whatever tool trained it and re-uploading it by hand through the browser, a multi gigabyte round trip on a large capture.
Authentication uses a PlayCanvas access token sent as a bearer header, generated once from the API Tokens section of the account page. Uploads are multipart and resumable. A client opens a session at POST /v1/splats/uploads with a source format and optional metadata, requests signed URLs for the part numbers it is ready to send, PUTs those parts directly to storage, then commits the upload with the returned part ETags.
Accepted source formats are ply, sog, ssog, and lcc. Scenes arrive unlisted and can sit in a processing state while PlayCanvas prepares the viewer assets. Title and description travel with the upload, alongside a softwareTools array of up to six catalogue IDs recording which tools made the scene, and an optional uploadClient object identifying the integration performing the transfer. GET /v1/splats returns a paginated list of the scenes a caller owns.
Three integrations are live at launch. Teleport by Varjo, which added direct Insta360 file upload for 360 camera capture, takes an access token under Settings and Integrations and then offers a Publish capture option on every capture. XGRIDS LCC Studio publishes from its My Models list with LCC2 (SOG) as the recommended format, returning a live viewer link when the transfer completes, and SuperSplat has read the native .lcc format since version 2.12.
The SuperSplat plugin for LichtFeld Studio is written and maintained by PlayCanvas, MIT licensed, and doubles as the reference implementation of the API. It adds a SuperSplat tab beside the Rendering and Training tabs, exports PLY or SOG, reports progress during transfer and resumes after a dropped connection.
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