Grow
The Grow node creates fibres (fur or hair), using the positions of its input points (particles) as the root of each fibre.
For each point, Yeti works out the new fibre's length and direction. Each fibre points in that direction (by default $N, the surface normal) and is divided into Segment Count equal segments.
You can connect a groom or guides to the second input. Yeti samples their length and uses it to scale the length of each fibre. This only sets the length: to shape the fibres or set their direction, use a Comb or Guide node later in the graph.
Inputs
| Input | Accepts | Description |
|---|---|---|
| 0 | Particles | The root positions of the new fibres, usually from a Scatter node. |
| 1 | Strands | Optional. A groom or guides that control the length of the fibres. |
Parameters
| Parameter | Description |
|---|---|
| Direction | The direction of the fibres. Defaults to $N, the surface normal. |
| Minimum Length / Maximum Length | The shortest and longest fibres. These can be scaled by the length of the input strands. |
| Length Multiplier | Scales the overall length of the fibres. |
| Length Bias | Biases the mix of short and long fibres: 0 spreads them evenly, -1 gives mostly short fibres and 1 mostly long fibres. |
| Segment Count | The number of segments in each fibre. |
| Inherit Attributes | A space-separated list of attributes to inherit from the geometry the fibres grow from. |