The Perlin Noise 2D node
When to use it
Perlin sampled in the XY plane only, so the same value comes back at every height.
That is exactly what a heightmap wants and exactly wrong for caves or overhangs, which need the value to change as you go up.
Build terrain as height minus Z with the 2D family. Switch to the 3D family the moment you need real volume. The 2D version is cheaper too, which is another reason to choose deliberately.
Pins
| Pin | Type | Description |
|---|---|---|
Frequency |
Number | How tight the pattern is. Higher numbers give you finer, busier detail. |
OffsetX |
Number | Slide the pattern along X. |
OffsetY |
Number | Slide the pattern along Y. |
Seed |
Whole Number | Change this for a different pattern at the same settings. The same seed always gives you the same noise. |
| Pin | Type | Description |
|---|---|---|
Result |
Number | The noise here. Roughly -1 to 1, and the same at every height. |
Available in Mesh Morpher Graph and Mesh Morpher Studio.