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Value FBM

Multi-octave Value noise. The cheap, blockier alternative to Perlin FBM.

Value FBM node

The Value FBM node

When to use it

Multi-octave Value noise. The cheap, blockier alternative to Perlin FBM.

Worth choosing when the look is deliberately stylised or the evaluation budget is genuinely tight. Otherwise the cell structure shows through, worst of all at low octave counts.

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.