Orbit, pan & zoom controls
Updated Oct 25, 2026 · 3 min read
Inspect STL, 3MF, OBJ, FBX, GLB, PLY, STEP, Fusion and Lychee models and G-code in 3D, measure them, and use the viewer toolbar.
Rhino .3dm previews use saved render meshes locally, with partial preview warnings when surfaces have no saved mesh. Curves and points appear only in the viewer. External textures are not fetched; missing textures use fallback materials with warnings. Meshory does not convert NURBS surfaces or offer Rhino files to a slicer.
Open any model into a real 3D viewer right inside Meshory, so there's no need to launch a slicer just to see what something is. It works on STL, 3MF, OBJ, FBX, GLB, PLY and STEP/STP, on Fusion designs (F3D and F3Z) and on Lychee Slicer scenes (LYS): game-asset FBX with textures when they sit beside the file, PLY scans as meshes or point clouds, and CAD parts and assemblies, Fusion's included, without exporting them to a mesh first. Sliced G-code opens there too, to step through layer by layer.
- Orbit: drag with the left mouse button to rotate the model around its center
- Pan: drag with the right or middle mouse button to slide the view
- Zoom: scroll to move closer or further out
The viewer toolbar
- Start spin turns the model on its own, and Stop spin holds it still again.
- Camera view jumps to a fixed angle: Default, Isometric, Front, Back, Left, Right, Top or Bottom. It also switches between Orthographic, the default, and Perspective.
- Measure opens the Measure panel. Click points on the model or on the build plate to measure as many distances as you like, with the angle shown where two lines share a point, and drag a placed point to move it. A file saved without units gets a Source units choice.
- Background sets any color behind the model, or Use theme background, and Hide build plate takes the plate and its shadow away. Meshory remembers both for every model.
- Model color shows the model in its Original colors, or in White, Black, Grey, Red, Orange, Yellow, Blue or Green when a plain color shows the shape better. Meshory remembers the choice for that file.
- Take screenshot saves the current view as a PNG. A save dialog opens with a name like Dragon-screenshot.png, so you choose where it goes.
- Reset view puts the camera back where it started, and Fullscreen gives the model the whole screen.
Lychee scenes are experimental: they preview as loose files only, and some scenes may preview incomplete. A scene inside an archive is listed without a preview.
G-code files
A sliced G-code file opens with a G-code layer slider beside the view. Drag it to step through the print, with the layer number and its height in mm, while supports, skirts and rafts keep their own colors. A Bambu plate file saved with Export plate sliced file shows each plate's toolpaths, with the slider beside the plate rail. The viewer opens G-code files up to 128 MB.
STEP & STP files
STEP describes surfaces rather than a mesh, so Meshory tessellates one into a mesh the first time you open it and caches the result: every open after the first is instant. Assemblies arrive whole, keeping the colors, part names and placement the CAD file was saved with.
STEP viewing arrived in Meshory 1.7.0. Two limits are worth knowing: files above 192 MB are skipped rather than risking a long conversion, and a STEP that keeps its geometry in separate referenced part files can't be previewed, because Meshory only reads the file you opened.
When you've found what you're after, open a printable model straight into your slicer or reveal any file in your file manager in one click, without hunting for it on disk.