Solidly documentation
Solidly is a macOS application for working with 3D asset files. It opens glTF, GLB, FBX, OBJ, STL, PLY, and USD files, describes their contents in the vocabulary of the format they were authored in, allows a defined set of edits, and writes the result back to disk. It also renders images of a model, either interactively through Photo Mode or from the command line.
This documentation covers feature sets. Where a capability depends on the file format, the page says so, and Format support collects those differences into a single table.
Start here
Install Solidly
System requirements, the two distributions, and where the application places its files.
Open your first model
Load a file, navigate the viewport, and find your way to the panels that describe it.
The Solidly window
The sidebar, the viewport, the inspector, the toolbar, and the animation player.
Work with files
Opening files and folders
Single files, model folders, sibling assets, and recent documents.
Supported formats
What Solidly reads from each format and what it can write back.
Saving and exporting
In-place saves, self-contained copies, and what each writer preserves.
Compressing glTF
Draco, Meshopt, quantization, KTX2, and WebP output.
Examine and change a model
Viewport navigation
Orbit, pan, zoom, framing, and the projection controls.
The inspector
Five tabs describing the model, the selected node, its materials, its resources, and how it is drawn.
Editing the hierarchy
Add, rename, reparent, duplicate, and delete scene nodes.
Editing materials
PBR factors, texture bindings, glTF material extensions, and variants.
Formats with their own model
USD
Stages, layers, prims, variants, purposes, payloads, and subdivision.
Animation and audio
Clips, tracks, the transport, and USD spatial audio.