Houdini 22.0 Nodes Copernicus nodes

Planar Inflate Copernicus node

Inflates a 2D SDF into a height layer.

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Since 22.0

This node creates a height layer from a 2D signed distance field. It uses the SDF as the boundary of the region to inflate, then solves a smooth height field inside that boundary. You can add wrinkle and mound noise to break up the inflated surface for a base terrain shape or a cushion-like shape.

Parameters

Height Scale

Controls the final height profile of the inflated region. Higher positive values create a fuller, more raised shape. Negative values invert the height direction.

Inflate Features

Pre Scale

The base inflation amount before the height is solved. Higher values increase the strength of the inflation source.

Noise Scale

The amount of wrinkle and mound noise to add to the inflation source.

Use Wrinkle

Adds fine phasor-noise wrinkle detail to the inflated surface.

Wrinkles

Size

The size of the wrinkle pattern. Lower values create smaller, tighter wrinkles.

Boundary Blend

The amount to blend the wrinkle scale near the SDF boundary. Higher values make the wrinkle pattern respond more strongly to the boundary.

Seed

The random seed for the wrinkle pattern.

Use Mounds

Adds broader fractal-noise mound detail to the inflated surface.

Mounds

Size

The size of the mound pattern. Lower values create smaller mounds.

Max Octaves

The number of noise layers to add together for the mound pattern.

Lacunarity

The amount to scale the mound noise frequency for each octave.

Roughness

The amount to scale the amplitude of each successive mound noise octave.

Blur

Scale

The size of the blur applied after adding wrinkle or mound features.

Mask from Boundary

Offsets the SDF boundary used to build the blur mask.

Mask Smoothing

The amount to soften the blur mask boundary.

Iterations

Iterations

The number of Poisson solve iterations to perform. Higher values produce a more converged inflated height, but take longer to compute. Increase this parameter if the resulting height has a flat area.

Inputs

sdf

A Mono layer containing the signed distance field to inflate.

Outputs

height

The generated inflated height layer.

sdf

The signed distance field rebuilt from the inflated height region.

See also

Copernicus nodes