Nodes · Keying
KeyerScreenClean
Keyingv1core
Overview
Image-based keying: uses a clean plate of the empty screen to key uneven backings — the tool for badly lit screens.
How to
How-to
- Wire the plate and a clean plate of the empty screen (from CleanScreen).
- The key is the difference between them — the tool for badly lit screens.
Inputs
| Input | What it takes |
|---|---|
| in | the image this node works on |
| clean | — |
| insideMask | — |
| outsideMask | — |
Outputs
| Output | Type |
|---|---|
| out | Image |
Parameters
| Parameter | Type | Default | What it does |
|---|---|---|---|
| screen | Choice | green | The screen colour to key: green or blue. greenblue |
| screen_gain | Float | 1.0 | How hard the key pulls: raise it to clean thin screen, lower it to keep fine edge detail. |
| screen_balance | Float | 0.5 | Which of the two non-screen channels the key measures against (0 = one, 1 = the other, 0.5 = both). Slide it toward the side that reads cleaner on this plate. |
| clip_black | Float | 0.0 | Matte values below this become 0 — cleans noise out of the screen area. |
| clip_white | Float | 1.0 | Matte values above this become 1 — solidifies the foreground core. |
| despill | Bool | true | Pull the screen colour out of the foreground's edges and fine detail after keying, so hair and glass stop glowing green. |
| view | Choice | result | What the viewer shows: the result, the matte, a status map (core / edge / screen), the overlay, or the despill alone. resultmattestatusoverlaydespill |
| disabled | Bool | false | Bypass: the node passes its first input through untouched (D in the graph). The knobs keep their values for when it comes back. |
| label | Text | A note shown under the node in the graph — what this node is FOR. Never affects the render or the cache. | |
| hide_input | Bool | false | Draw the node without its input wire — a tidy graph for a node whose source is obvious (a Dot, a viewer tap). |