Houdini 20.0 Nodes Geometry nodes

HeightField Scatter geometry node

Scatters points across the surface of a height field.

Since 16.0

This node generates point geometry from a height field.

Warning

The node will only scatter points where the Scatter amount layer is on. If the layer is empty, or the parameter is left blank, the node won’t create any points at all.

Parameters

Scatter Amount Layer

The name of a mask layer specifying which areas of the height field will get scattered points.

Use Exact Point Count

Specify the exact number of points to generate, rather than a density value.

Point Count

When Use exact point count is on, the number of points to generate.

Density

When Use exact point count is off, the number of points per square meter to generate.

Relaxation

Relax Points

Pushes points away from each other as a secondary step, to prevent clumping.

Relax Iterations

When Relax points is on, the number of iterations of relaxation to do. More iterations will more evenly distribute the points, but can be slower, and after a certain number of iterations that evenly distribute the points, more iterations is wasted effort.

Scale Radii By

When Relax points is on, scale point radii by this amount before relaxing. A value less than 1 will increase clumping. A value of 0 does no relaxation. A value greater than 1 may speed up convergence of the relaxation when scattered points are very far apart.

Use Max Relax Radius

Prevent far-flung outlier points from affecting relaxation.

Max Relax Radius

Points this far from other points are not included in relaxation. Decrease this if outlier points in low-density areas are causing problems with relaxation.

Global Seed

Seed for the random number generator. Using the same seed always produces the same scattering. For example, you can change the value to get a different scattering, or set it $F to get a different scattering on every frame.

Max Points

An optional hard limit on the number of points to generate, to prevent accidents where you mistype a value and Houdini tries to generate a ridiculous number of points that locks up the computer.

See also

Geometry nodes