PlayCanvas has released SuperSplat Editor v3.7.0, which registers 24 native WebMCP tools that let an AI agent inspect and edit gaussian splats in the open editor tab.
The tools run through window.editor, a typed API also new in v3.7.0 that sends scripted commands through the same serialized command queue as the editor's own controls. Each successful data edit commits in one queue slot as one undo entry, and undo and redo step through a single shared history that includes the user's edits. PlayCanvas states there is no separate server, network listener, MCP bridge, or arbitrary JavaScript execution tool.
Inspection covers get_scene, get_layer, and get_histogram. Selection works by world space box, sphere, or ellipsoid, by viewport rectangle, or by numeric property range, and editing covers delete, hide, restore, duplicate, separate, transform, and color adjustments. The import_url tool adds a CORS accessible PLY, SPLAT, SOG, SPZ, or KSPLAT file as an undoable layer, and export_scene writes PLY, compressed PLY, SPLAT, SOG, SPZ, or a standalone HTML or ZIP viewer. Publishing, timeline authoring, and local file pickers are outside the tool set.
Region and property selections can be previewed before they change anything, and transform and color commands require an explicit selection or layer scope. Rectangle selection and point picking require a view token, so a moved camera returns a stale_view error instead of an edit made from outdated screen coordinates. An agent cropping a scan can preview the splats outside a box, select them, and delete them, and a person at the keyboard can undo each step.
StorySplat 2.5 exposed its Scene Agent's editor tools over WebMCP, with a confirmation click required before saving, publishing, or exporting. SuperSplat Editor's export_scene requires an explicit filename, format, and scope, and the browser's download settings decide whether the file is saved. PlayCanvas describes WebMCP as experimental, with availability tied to the browser version.
Sort Mode, a new preference under Rendering, orders splats by Radial distance from the camera or by Depth along the view direction. Radial is now the default, which PlayCanvas says keeps the order stable when the camera turns in place, and orthographic views always sort by depth. The release follows SuperSplat 3.6, which added two-point vertical alignment, and also adds right-click copy and paste of transform and color panel values as plain JSON, with a transform paste recorded as one undo step.
SuperSplat Editor v3.7.0 is available now on GitHub.
