Merge/Blend Images
Combine two images using blend modes
Merge/Blend Images
Combine two images using blend modes
Overview
The Merge node combines a foreground image with a background image using various blending modes. Position the foreground anywhere on the background. The output size matches the background image.
Usage Tips
- “Blend” mode uses alpha transparency for standard compositing
- “Multiply” darkens - great for shadows and vignettes
- “Screen” lightens - good for light leaks and glows
- Use position to place foreground elements precisely
Common Pairings
- Solid Canvas - Create a background for transparent foregrounds
- Text - Add text overlays to images
- Resize - Scale foreground before merging
Gotchas
- Output size is determined by background, not foreground
- Foreground positioned outside background bounds is cropped
- For more than 2 layers, chain multiple Merge nodes or use Composite
Technical Reference
Inputs
| Name | Type | Required | Description |
|---|---|---|---|
fg_input | Image | Yes | Foreground image |
bg_input | Image | Yes | Background image |
Outputs
| Name | Type | Description |
|---|---|---|
output | Image | Blended result image (same size as background) |
Parameters
| Name | Type | Default | Description |
|---|---|---|---|
params | text | Blend | Blend mode: Blend, Add, Multiply, Screen, Overlay, Darken, Lighten, etc. |
params_position | size | map[height:0 width:0] | Position (x, y) to place foreground on background |