# ScanlineRender

> ScanlineRender node.

| Node | ScanlineRender |
|---|---|
| Menu | 3D › ScanlineRender |
| **Names in each format** | |
| .oink comp (JSON) | `"type": "OC_N_scanlinerender"` |
| .nk script | `ScanlineRender`, also imports `ScanlineRender2` ([how .nk import works](/docs/nuke-users/nk-import)) |
| Python | `nuke.createNode("ScanlineRender")` |
| Assistant (MCP) | `create_node(type="ScanlineRender")` |
| Tab search | `scanlinerender`, or its initials `sr` |

![ScanlineRender properties](/shots/nodes/scanlinerender@2x.webp)

## Inputs and outputs

| Port | Name | Type |
|---|---|---|
| input 0 | bg | image |
| input 1 | obj/scn | scene |
| input 2 | cam | scene |
| output 0 | Image | image |

## Knobs

Panel tab **Scanlinerender**, in panel order.

| Knob | Label | Type | Default | Range / values | .nk knob | Description |
|---|---|---|---|---|---|---|
| `camera_sample_mode` | camera samples | menu | `1` | 1, 4, 9, 16, 32, 64, custom | `camera_sample_mode` |  |
| `camera_samples_custom` | custom size | float | `1` | 1 to 256 (integer) | `camera_samples_custom` |  |
| `shutter` | shutter | float | `0.5` | 0 to 2 | `shutter` |  |
| `shutteroffset` | shutter offset | menu | `start` | start, centred, end | `shutteroffset` |  |
| `camera_motion_blur` | camera xform blur | bool | `true` |  | `camera_motion_blur` |  |
| `object_motion_blur` | object xform blur | bool | `true` |  | `object_motion_blur` |  |
| `lighting_enable_mode` | lighting | menu | `auto` | auto, on, off | `lighting_enable_mode` |  |
| `ambient` | ambient | float | `0` | 0 to 1 | `ambient` |  |
| `one_over_z` | 1/Z depth | bool | `true` |  | `one_over_z` |  |
| `motion_vectors_type` | motion vectors | menu | `distance` | off, distance | `motion_vectors_type` |  |
| `output_position` | position (P) | bool | `false` |  | `output_position` |  |
| `output_normal` | normal (N) | bool | `false` |  | `output_normal` |  |

### 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 |  |  |  |  |

## Examples

Open these from **Help › Examples…**, or from the **?** menu in this node's Properties panel.

- **Relight from rendered normals and depth** (`examples/3d/relight_normals.oink`): ScanlineRender writes normals (N) and depth; Relight adds a point light using them, the way you relight a CG pass in comp. Move the light's position knob to see the shading follow the shapes.
- **ScanlineRender: a textured card and a camera** (`examples/3d/scanline_card_camera.oink`): The classic Nuke 3D setup: a photo textures a Card, the Scene gathers geometry, a Camera looks at it and ScanlineRender draws it over a background. Move the Camera or the Card to see the perspective change.


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Sources: opencomp_core/nodes/three_d/render_nodes.py, opencomp_electron/src/components/properties/knobSchema.ts, opencomp_core/nk/mapping.py