Nodes · Color
Clamp
Colorv1coreConcat: Pointwise
Overview
Limits values to a range — kill negative pixels or super-whites before an op that can't handle them.
How to
How-to
- Set
lowandhigh; values outside are clipped. - Turn on
clamp_alphato clip alpha too. - Put it before an op that cannot handle negatives or super-whites.
Inputs
| Input | What it takes |
|---|---|
| in | the image this node works on |
| mask | limits the effect to this matte — the engine's universal mask slot, applied for every node that declares it |
Outputs
| Output | Type |
|---|---|
| out | Image |
Parameters
| Parameter | Type | Default | What it does |
|---|---|---|---|
| channels | Choice | rgba | Which channels this node writes: rgba, rgb (alpha passes through untouched), alpha only, all, or none (bypass). Everything unselected comes straight from the input — same as Nuke. allrgbargbalphanone |
| low | Float | 0.0 | The floor: nothing below this leaves the node. |
| high | Float | 1.0 | The ceiling. |
| clamp_alpha | Bool | false | Clamp alpha too, not only colour. |
| 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). |