nodes.md

Nodes

2D Noises

Fast Noise 2D		Generates a value for every X/Z value based on the selected noise function. Good for generating a heightfield. Range of values: -1 to 1
Heightmap		Generates a scaled [0 to 1?] value for X/Z value based on a heightmap texture. Good for generating a heightfield. Range of values: either 0 to 1 or -1 to 1 (needs verification)
Other Noises 2D		Generates a value for every X/Z value based on the selected noise function. Good for generating a heightfield. Range of values: usually -1 to 1, sometimes -2 to 2

3D Noises

Fast Noise 3D		Generates a volume of values based on the selected noise function. Can be used to generates "blobs in space," "floating islands," disassociated pockets of void. Range of values: -1 to 1?
Other Noises 3D		Generates a volume of values based on the selected noise function. Can be used to generates "blobs in space," "floating islands," disassociated pockets of void. Range of values: usually -1 to 1, sometimes -2 to 2

Combiners

Blend: Add		Adds two values. \ \ Weight is multiplied to in and out, so addition is more like a weighted average. Example: if weight = 0.25, input1 = 2, input2 = 1: \ = (2 * 0.25) + (1 + 0.75) \ = .5 + .75 \ = 1.25
Blend: Subtract		Subtracts two values, using weighting as in Add mode (see above).
Blend: Multiply		Multiplies two values.
Blend: Min		Outputs the minimum of two values.
Blend: Max		Outputs the maximum of two values.

Filters

Abs		Return absolute value of input.
Clamp		Return input clamped to min/max range.
Curve		Apply in-range to out-range, using curve, clamped within out-range)
Invert		Invert value
Lerp		Linearly interpolate in-range to out-range, clamped within out-range)
Scale bias		Multiply input by scale, add bias
Terrace		Reduce values to a set of terrace values, of a defined width. Width is dynamic: width (constant width) * input_width

Transformers

To Height		Sets voxel values for current X/Z column that are positive above input * scale, negative below it.
To Slope		Returns steepness at location. \ 0 = level ground, higher numbers = steeper

Final

Biome Selection		Can have multiple of these nodes. The one with the highest weight will define the biome at any X/Y/Z position.
Voxel Type		Can have multiple of these nodes. The one with the highest weight will define the voxel at any X/Y/Z position.
Final		Receives voxel value (distance from surface, negative is underground)

Position

X | Y | Z

Feeds a single dimension of the current location into other nodes.

Constant

Constant

Feeds a constant into other nodes.