Video Combiner Node
The Video Combiner node merges multiple video clips and audio tracks into a single output video. It functions as the final assembly stage in video production workflows, providing trimming, speed control, transitions, and audio management.
What It Does
This node accepts multiple video inputs and optional audio inputs, then combines them into one video with configurable order, trimming, transitions, and audio mixing. You can adjust per-clip settings like speed, volume, and trim points using the built-in timeline editor.
Inputs
| Handle | Color | Description |
|---|---|---|
| Video Input | Orange | Accepts one or more video clip connections |
| Audio Input | Green | Accepts audio track connections from Audio Generator nodes |
Configuration
Clip Settings
| Parameter | Description | Range |
|---|---|---|
| Clip Order | Drag-and-drop sequence of video clips | Reorderable |
| Trim | Start and end time for each clip | Per-clip |
| Speed | Playback speed per clip | 0.25x – 4x |
| Volume | Audio level per clip | 0 – 1 |
Transitions
| Parameter | Description | Options |
|---|---|---|
| Transition | Effect between clips | none, crossfade |
| Duration | Length of the transition | 0.1 – 2.0 seconds |
Output Settings
| Parameter | Description | Options |
|---|---|---|
| Aspect Ratio | Target ratio with auto letterboxing/cropping | 16:9, 9:16, 1:1, 4:3 |
| Resize Mode | How source clips scale to fit | fit, fill |
| Quality | Output compression level | high, medium, low |
Audio Track Management
Each connected audio track can be independently configured:
| Parameter | Description |
|---|---|
| Offset | Where the audio starts relative to the video timeline |
| Trim | Start and end trim points for the audio |
| Volume | Per-track volume level (0 – 1) |
| Mute | Toggle audio on/off without removing it |
| Loop | Repeat the track to fill the video duration |
Watermark
| Parameter | Description |
|---|---|
| Image | Overlay image URL |
| Position | Placement on a 9-point grid |
| Opacity | Transparency level (0 – 1) |
Credits
| Component | Cost |
|---|---|
| Base | 10 credits + 1 credit per second of output |
| Audio merge | Additional 10 credits + 1 credit per second |
Usage
- Drag a Video Combiner node onto the canvas.
- Connect one or more Video Generator or Asset nodes to the orange video input.
- Optionally connect Audio Generator nodes to the green audio input.
- Open the timeline editor to reorder clips, set trim points, and adjust speed.
- Configure transitions, aspect ratio, and quality in the settings panel.
- Execute the node to produce your combined video.
tip
Use the timeline zoom controls for frame-accurate trim editing. You can preview the combined output before executing to verify clip order and audio sync.
Related Nodes
- Video Generator Node -- generate the video clips to combine.
- Audio Generator Node -- create voice, music, or SFX tracks.
- Asset Node -- source existing video clips or audio files.