Grain

Synthetic film grain.

raw .mdPress ? for keys

Node	Grain
Menu	Draw › Grain
Names in each format
.oink comp (JSON)	`"type": "OC_N_grain"`
.nk script	`Grain2` (how .nk import works)
Python	`nuke.createNode("Grain2")`
Assistant (MCP)	`create_node(type="Grain")`
Tab search	`grain`

Grain properties

Inputs and outputs

Port	Name	Type
input 0	Image	image
output 0	Image	image

Knobs

Panel tab Grain, in panel order.

Knob	Label	Type	Default	Range / values	.nk knob	Description
`seed`	seed	float	`134`	-1000 to 1000 (integer)	`seed`
`presets`	presets	menu	`Kodak 5248`	Kodak 5248, other	`presets`
`red_size`	red	float	`3.3`	0 to 100	`red_size`
`green_size`	green	float	`2.9`	0 to 100	`green_size`
`blue_size`	blue	float	`2.5`	0 to 100	`blue_size`
`red_i`	red	float	`0.6`	0 to 1	`red_i`
`green_i`	green	float	`0.6`	0 to 1	`green_i`
`blue_i`	blue	float	`0.6`	0 to 1	`blue_i`
`red_m`	red	float	`0.416`	0 to 1	`red_m`
`green_m`	green	float	`0.46`	0 to 1	`green_m`
`blue_m`	blue	float	`0.85`	0 to 1	`blue_m`
`black`	black	float	`0`	0 to 0.1	`black`
`minimum`	minimum rgb	colour ×3	`0, 0, 0`	0 to 1	`minimum`
`maskgrain`	Apply only through alpha	bool	`true`		`maskgrain`
`invert_mask`	Invert alpha	bool	`false`		`invert_mask`
`match_from`	grain from	text
`match_shot`	Match shot	button (panel only)
`match_info`		info

Other knobs (Python, .nk and the assistant; not on the panel)

Knob	Label	Type	Default	Range / values	.nk 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

Noise

Fractal Perlin noise.

AIRoto

Click on the plate in the Viewer to add an object (Shift/Alt+click removes, drag draws a box); the mask shows at once.

On this page

Inputs and outputs Knobs Other knobs (Python, .nk and the assistant; not on the panel)