Null Layer Type
Null layers don’t have a visual representation. But they share the same transform properties as any other drawable layer.
Null layers are often used to parent other layers to them so they can be used as a detached hierarchy of transformations. Parenting can be recursive and null layers can be parented to other null layers as well.
Another usage of null layers is for holding expressions properties that don’t belong to a specific layer but can be shared among multiple ones.
They don’t have any specific properties but they share others with other layer types (transform, masks, effects, layer styles).
| Definition | Name | Type | Required | Default |
|---|---|---|---|---|
| Type | ty | Layer Types | ✅ | 3 |
| Index | ind | Number | ✅ | |
| Transform | ks | Object | ✅ | |
| Parent | parent | Number | ➖ | |
| In Point | ip | Number | ➖ | |
| Out Point | op | Number | ➖ | |
| Start Point | st | Number | ➖ | |
| Time stretch | sr | Number | ➖ | 1 |
| Masks | masksProperties | Array[Mask Elements] | ➖ | |
| Track Matte Masked Layer | tt | Matte Mask types | ➖ | |
| Track Matte Masking Layer | td | Number | ➖ | |
| Track Matte Masking Layer Index | tp | Number | ➖ | |
| Blend Mode | bm | Blend Mode types | ➖ |