Edit Bezier anchors and handles, turn curves into swept or filled geometry, animate a path drawing on, and move objects/cameras along it.
Where: 3D editor → Add → Path; select the path → Path inspector
Key ideas
- Bezier editing: Anchors and handles define the curve; open and closed paths support different geometry/fill behaviors.
- Path geometry: Open curves can sweep round, square, or ribbon profiles with thickness, taper, twist, caps, and trim. Closed paths can create flat or extruded filled shapes, including holes.
- Motion: Trim start/end/offset animates the visible draw; Follow Path attaches an object/camera with position and alignment controls.
Steps
- Add a Path and edit its anchors/handles into the intended curve.
- Choose an open sweep profile or close the path and configure fill/extrusion.
- Set taper/twist/caps and use trim start/end/offset for a drawn-on effect.
- Attach an object or camera with Follow Path and animate its normalized position from 0 to 1.
- Choose the camera framing, inspect existing keys, apply a named move with duration and amount, and scrub before rendering. Use the detailed cinematic guide for preset names, rail behavior, and backdrop boundaries.
Cinematic camera and motion workflow
Camera Lens presets and Focal length express the existing field of view in millimetres. The motion library writes real editable cinematic keyframes relative to the camera or object’s current pose. Guide paths support camera rails without adding a visible swept tube. The image backdrop is a modeling aid that stays out of cinematic playback and delivered output.
- Inspect animation before changing existing motion. keyframe_scene and apply_motion_preset replace the channels they touch by default; choose merge only deliberately.
- Camera presets require cameraId; object presets require nodeId. These are internal scene IDs, not the Flowgen node ID or HTML element ID.
- For MCP, open the node editor, select the Scene3D host element, and enumerate document tools. The selected or sole scene is pinned by the bridge; a caller cannot redirect the operation with an id argument.
- inspect_scene reads current scene values and animation without writing; animate_scene_field controls exposed fields via scroll, mouse, hover, or load instead of cinematic time.
Tips
- Use fewer, well-placed anchors for a smoother curve.
- For camera motion, preview orientation/banking before animating the full path.
Limitations and important notes
- Open paths use swept geometry; closed filled/extruded shapes require a valid non-self-intersecting contour.