Nodes
CurveTool
CurveTool — analyse frames into keyed knobs.
| Node | CurveTool |
|---|---|
| Type id | OC_N_curvetool |
| Menu | Other › CurveTool |
| Nuke class | CurveTool |
| Code | opencomp_core/nodes/utility/analysis.py |

Inputs and outputs
| Port | Name | Type |
|---|---|---|
| input 0 | Image | image |
| output 0 | Image | image |
Knobs
Panel tab Curvetool, in panel order.
| Knob | Label | Type | Default | Range / values | Nuke knob | Description |
|---|---|---|---|---|---|---|
go_first | first frame (0 = comp) | float | 0 | 0 to 100000 (integer) | Go!: first frame (0 with last 0 = the comp's range) | |
go_last | last frame | float | 0 | 0 to 100000 (integer) | ||
operation | Curve Type | menu | Avg_Intensities | Auto_Crop (Auto Crop), Avg_Intensities (Avg Intensities), Exposure_Difference (Exposure Difference), Max_Luma_Pixel (Max Luma Pixel) | operation | |
channels | channels | text | rgba | channels | ||
ROI | ROI | vector ×4 | 0, 0, 0, 0 | -10000 to 10000 | ROI | |
autocropdata | autocropdata | vector ×4 | 0, 0, 0, 0 | -10000 to 10000 | autocropdata | |
intensitydata | intensitydata | colour ×4 | 0, 0, 0, 0 | 0 to 1 | intensitydata | |
maxlumapixdata | maxlumapixdata | vector ×2 | 0, 0 | -10000 to 10000 | maxlumapixdata | |
maxlumapixvalue | maxlumapixvalue | colour ×3 | 0, 0, 0 | 0 to 1 | maxlumapixvalue | |
minlumapixdata | minlumapixdata | vector ×2 | 0, 0 | -10000 to 10000 | minlumapixdata | |
minlumapixvalue | minlumapixvalue | colour ×3 | 0, 0, 0 | 0 to 1 | minlumapixvalue |
Other knobs (Python, .nk and the assistant; not on the panel)
| Knob | Label | Type | Default | Range / values | Nuke knob | Description |
|---|---|---|---|---|---|---|
gl_color | Viewer Controls Color | float ×3 | 0, 0, 0 | 0 to 1 | ||
postage_stamp_frame | Static Frame | int | 1 | -2147483648 to 2147483647 | ||
lifetimeStart | Lifetime Start | int | 0 | -2147483648 to 2147483647 | ||
lifetimeEnd | Lifetime End | int | 100 | -2147483648 to 2147483647 | ||
useLifetime | Use Lifetime | boolean | false | |||
cached | Cached | boolean | false | |||
bookmark | Bookmark | boolean | false | |||
dope_sheet | Dope Sheet | boolean | false | |||
clone_group | Clone Group | string | ||||
link_source | Link Source | string | ||||
link_overrides | Link Overrides | string | ||||
split_views | Split Views | string | ||||
avgframes | Frames to Average | int | 2 | 0 to 2147483647 | avgframes |
Nuke equivalent
Imports from and exports to Nuke's CurveTool.
Nuke knobs not in this list import as a knob of the same name, or are kept unchanged for export. See .nk import.