Houdini 20.5 Nodes Geometry nodes

HeightField Crop geometry node

Extracts a square of a certain width/length from a larger height volume, or resizes/moves the boundaries of the height field.

Since 16.0

Parameters

Crop Mode

“Intersect” sets the boundaries to the intersection of the original and the box specified below. “Replace” sets the boundaries to the box specified below. “Union” set the boundaries to the bounding box of the original and the box specified below.

Crop Mask Layer

Crop to the bounding box of this mask layer.

Keep Where Below Crop Value

If Crop Mask Layer is not empty, only consider mask values above a certain minimum when computing the bounding box of the mask.

Crop Value

The minimum mask value to consider when Crop mask layer and Keep where below crop value are one.

Orientation

The orientation of the cropped region. Disabled when Crop mask layer is on.

Size

The width and length of the cropped region. Disabled when Crop mask layer is on.

Center

The center of the tile where the cropping will occur. Disabled when Crop mask layer is on.

Voxel Padding

Number of extra voxels added to the width and height for padding.

Use Point Bounds

Computing the bounds of the second input can be done either by the bounds of the primitives or the bounds of the points. For example, primitive sphere will only enlarge the bounds with its center point when in point mode. On the other hand, if the volume is rotating away from the axes, the point mode will produce a tighter fit.

If there is a pscale attribute on the points, each point will be grown by its pscale attribute when bounds are computed.

Geometry nodes