Whether to add noise to the scattered point positions before influencing points to be near the constraint points.

When Add scatter noise is on, this controls the influence falloff for each successive noise layer.

When Add scatter noise is on, this is the maximum displacement added to the points by the noise.

When Add scatter noise is on, this is the base feature size of the generated noise.

The number of relax iterations to apply to the points. More iterations are slower but can give better positioning of the points.

Whether to remove points that are too close to one another to preserve spacing constraints.

The minimum amount of overlap allowed, as a fraction of the radius required for a point to be removed.

When this is on, you can specify additional constraint points from the second input in the Constraint Point Group below. The scattered points will be pulled toward or pushed away from these constraint points during relaxation, based on each constraint point’s pscale attribute.

When Avoid constraint points is on, this is the group of points in the second input that repel or attract the scattered points. The pscale attribute on each constraint point controls how strongly the point repels the scattered points (if pscale is positive), or attracts them (if pscale is negative). Leave this blank to use all existing points in the second input. To select points by the tag attribute, use the @tag=‹name› group syntax.

Scales the pscale attribute on the points in the Constraint Point Group above.

Turn on the checkbox next to Emergency Limit to prevent the node from creating more than a certain maximum number of points.

The maximum number of points this node is allowed to generate. If you accidentally set some combination of parameters that causes a huge spike in point density, this can prevent the node from cooking for an extremely long time, or running out of memory. This is especially useful in batch processing where a human is not available to press ⎋ Esc to cancel an over-long cook.

Turn this checkbox on to create an attribute on the scattered points containing the primitive number of the corresponding primitive (polygon face) on the surface.

The name of an attribute to create on the scattered points containing the primitive number of the corresponding primitive (polygon face) on the surface.

Turn this checkbox on to create an attribute on the scattered points containing the corresponding UVW coordinates on the surface.

The name of an attribute to create on the scattered points containing the corresponding UVW coordinates on the surface.

Turn this checkbox on to create an attribute on the scattered points containing the radius of the point (this will affect the object size when you copy/instance onto the points).

The name of an attribute to create on the scattered points containing the point radius (this will affect the object size when you copy/instance onto the points). This is on by default with the name pscale (this is Houdini’s standard instancing attribute for point scale).

Turn this checkbox on to create an attribute on the scattered points containing the orientation matrix of the point (this will affect the object orientation when you copy/instance onto the points).

The name of an attribute to create on the scattered points containing the orientation matrix of the point (this will affect the object orientation when you copy/instance onto the points). This is on by default with the name orient (this is one of Houdini’s standard instancing attributes for orientation).

A space-separated list of point attributes to copy from the surface onto the scattered points. For example, if the surface has point colors, you can specify Cd to transfer the surface color onto the scattered points. The default is *, meaning transfer all point attributes.

A space-separated list of vertex attributes to copy from the surface onto the scattered points. The default is *, meaning transfer all vertex attributes.

A space-separated list of primitive (polygon face) attributes to copy from the surface onto the scattered points. The default is empty, meaning transfer no primitive attributes.

A space-separated list of detail (whole geometry) attributes to copy from the surface onto the scattered points. The default is empty, meaning transfer no detail attributes.

When enabled, groups matching the Surface Point Attributes, Surface Vertex Attributes, and Surface Primitive Attributes patterns will be copied from the surface onto the scattered points.

Randomly re-assign which assets are assigned to the different points/patches. If Mode is Cycle or Random, this will appear to simply re-randomize the points. When Mode is Patches or Noise or VEXpression, this will keep the patches/patterns created by the mode, but randomize which asset goes with each patch/pattern. Note that you can use Offset (below) to change the assets non-randomly.

When Shuffle pieces is on, the random number seed to use for shuffling. Changing this number will give a different “random” outcome. For example, if you want different orderings in each frame, set the seed to $F (the current frame number).

Like Shuffle Pieces (above), but instead of re-assigning assets randomly, it shifts each asset to the next one in order in the working set. (Note that you can use this and Shuffle Pieces at the same time to both shuffle and offset the asset choices.) This can be useful if the order of your working set has meaning (for example, if it goes from big assets to small assets), or if you just want to try some different outcomes to see how they look.

Controls the average size of the patches.

Allows you to control the average height, width, and depth of the patches separately.

Moves the noise field relative to the points.

The strength of distortion to add.

The size of the distortion.

The roughness of the distortion.

An offset added to the center of the distortion map.

The function to use to generate the noise field. The node uses the point positions as the seed for the random number generator.

Controls the size of the noise features.

Allows you to control the height, width, and depth of the noise features separately.

Moves the noise field relative to the points.

The number of combined noise layers.

The influence falloff for each successive noise layer.

Adds “stringiness” or “wiriness” to standard noise.

The frequency of the Lattice Warp.

Widens the peaks or valleys of the noise output.

A ramp used to remap noise values.

The way of specifying the weight that each piece is given.

When Weight Method is not Uniform, this is the seed value for the random number generator that chooses between weighted alternatives.

When Weight Method is Piece Weights, click this button to automatically set up the multiparm based on the pieces in the second input.

A button that will automatically fill out the Number of Assets and Piece parameters such that each unique piece in the geometry is included in the list.

The number of pieces to specify weights for in the multiparm.

The attribute value for this piece.

A value representing how likely this piece is to appear in the chain, relative to other pieces. The weights of all pieces are normalized to add up to 1.0 and then used as probabilities. For example, if three pieces have weights of 1, 1, and 2, the last piece is likely to appear 50% of the time, while the other two are each likely to appear 25% of the time.

When Mode is Weight Attribute, the name of a primitive float attribute on the piece geometry that sets the piece’s random weighting. The weighting for a piece is the average of this attribute’s values across the primitives of the piece.

The number of VEX expressions to test.

Use the checkbox next to each expression to control whether it is used or not.

The name of the piece to assign to points where the expression returns true. If you enter a space-separated list of piece names, the node will choose one randomly.

The VEX expression to run for each point. If the expression evaluates to a non-zero value, it “matches” the point and the corresponding piece will be assigned to the point.

When none of the rules in the multiparm match, use this piece. If you enter a space-separated list of piece names, the node will choose one randomly.

Turn on the checkbox next to Unmatched group to create a group in the output containing any unmatched points.

Turn on the checkbox and enter a group name to create a group in the output containing any unmatched points.

The seed value for the random number generator for when the node chooses between alternatives.