The Perlin Billow node
When to use it
Multi-octave Perlin with puffy rounded features. Clouds, foam, lumpy surfaces.
It is Ridged folded the other way, so it biases the field downward by about as much as Ridged biases it up. Expect to re-tune your offset when swapping between them.
Pins
| Pin | Type | Description |
|---|---|---|
Frequency |
Number | How tight the biggest layer is. Everything else is built on top of it. |
Lacunarity |
Number | How much smaller each layer gets. At 2 every layer is half the size of the one before. |
Gain |
Number | How much quieter each layer gets. Low is crisp, high is rough and grubby. |
OffsetX |
Number | Slide the pattern along X. |
OffsetY |
Number | Slide the pattern along Y. |
OffsetZ |
Number | Slide the pattern along Z. |
Seed |
Whole Number | Change this for a different pattern at the same settings. The same seed always gives you the same noise. |
Octaves |
Whole Number | How many layers to stack. Past about 8 you are paying for detail finer than your voxels can show. |
| Pin | Type | Description |
|---|---|---|
Result |
Number | The noise here. Roughly -1 to 1. |
Available in Mesh Morpher Graph and Mesh Morpher Studio.