How to use Optical Flow node in Oraphim

Type ID: fusion.opticalflow
Category: Tracking

What this node does

The Optical Flow node is registered in Oraphim's Tracking category and performs the graph operation represented by its sockets and controls below.

The current Oraphim runtime registers 3 sockets and 7 properties for this node. Its main registered inputs are Current, Reference; its main outputs are Output. The tables below are generated from the runtime registry rather than a handwritten approximation.

Inputs

Socket	Key	Type
Current	in_color	Image
Reference	in_reference	Image

Outputs

Socket	Key	Type
Output	out_color	Image

Controls

Control	Key	Type	Group	Registry default
Output	outputMode	String	Flow	Flow Colors
Interpolation Phase	interpolationPhase	Float	Flow	0.5
Quality	quality	String	Quality	Balanced
Smoothness	smoothness	Float	Quality	0.5
Pyramid Levels	pyramidLevels	Int	Advanced	4.0
Solver Iterations	iterations	Int	Advanced	4.0
Advanced Mode	advanced	Bool	Advanced	0.0

How to use it

1. Add Optical Flow from node search. Use fusion.opticalflow when you need the exact registry entry.
2. Connect a compatible Image source to Current. Add the other inputs only when the operation needs them.
3. Start with the registry defaults and adjust Output, Interpolation Phase, Quality first so you can see the node's effect in isolation.
4. Route Output (Image) into a compatible downstream node, viewer, or output path.
5. Preview a representative frame, change one input/control at a time, and save/reopen reusable graphs to verify persistence.

Practical example

Create a small test graph with Optical Flow. Feed a compatible source into Current. Change Output away from its registry default and compare the result. Connect Output to a compatible downstream stage so the result is visible. Keeping this test graph small makes socket-type, context, and parameter mistakes easier to diagnose before the node is used in a production graph.

Troubleshooting

• If a connection is rejected, compare the exact socket data types in the tables above; Oraphim graph connections are typed.
• If the result looks unchanged, confirm this node is on the active path to the viewer/output and that the expected graph/resource is selected.
• If a control is unavailable, check required inputs and whether the property belongs to an internal or mode-dependent group.
• If a saved graph behaves differently later, reopen it and verify node identity, connections, and edited property values before rendering.

Related nodes

• 3D Camera Tracker — fusion.cameratracker
• Advanced Color Correction — fusion.advanced_color_correction
• Audio Generate — fusion.audio_generate
• CC Blobbylize — fusion.blobbylize
• Channel Process — fusion.channel_process

Return to the complete Oraphim node reference.