The Add Geometry node is used to add input geometry to the geometry collection.
The Procedural Geometry input is evaluated before the Geometry input is added. Unique indicates that input geometry is added to a different object in the collection and includes a transform matrix.

If a name is not provided here the bin's name will be the same as the input geometry.

Weld will collapse the input geometry into one object and remove duplicate vertices.

The Add Instance node is used to add input geometry to the Instance collection.
This is intended to be with input scene objects. No geometry is made, It uses the target ItemID from the From Mesh node as the geometry input.
Instancing the ProGeo object itself requires the Instance generator in Object Properties.

The CSG node is used for creating Constructive Solid Geometry using mesh booleans. This is a non-destructive process. You can choose Union, which unifies geometry; Intersection, which purely shows the overlapping parts of the two objects used; or Subtraction, which takes the second object from the first. Objects need to be solid 3D shapes with no holes.

You can save Procedural Geometry objects by adding a cache path into the node flow. If an object is particularly complex to make, or going to be rendered across multiple machines, using a cache is a good idea.

The options are:

• Freeze - This will create purely polygonal mesh transforms for saving
• Save Sequence - Clicking this will start saving every change at each frame for this object. Once your scene has been run through, you can disconnect the original nodes and just leave the cache node connected. This will be faster than having to evaluate all the nodes upstream from the cache
• Save Path - The path upon which the .lwgo format cache files will be saved

This unprepossessing node just has a Geometry input and a Result output. If you double-click the node, you just get a field for naming. As soon as you hook something to the input node, you'll notice you get a new Geometry_1 input. Hook something to that and you'll get another. This node will merely put separate objects into a single one for downstream calculation. There is no Boolean math, they are just stuck together.

The Data node is used for getting mesh data such as point locations, polygon counts, center points and normals from a mesh object.

This node can stop the For Loop operation if the result is not >0 (true).

The Extrude node is used for extruding (keeping the original polygon) or beveling (removing the original polygon). Both can have an inset value and be driven by envelopes and textures. If you use the Select Polygons node upstream, you can specify exactly which polygons get extruded.

• Axis - X, Y, Z or the polygon normal
• Offset - Distance to extrude to. Can be animated through the E button and textured with T
• Inset - The distance to bring newly-extruded polygons from the bounds of the original polygon being extruded. Can be animated and textured
• Keep Selection - Checkbox to keep the polygons selected with the Select Polygon node further downstream in node connections
• New Surface - Dropdown with four choices:
  • New Polygons - Only polygons created with the extrude will get new surfacing. Essentially, the sides of the extrude
  • Original Polygons - Resurfaces the original polygons from which the extrusion was made. Essentially the top of the extrude
  • Both - Surfaces original and extruded polygons the same way
  • None - Has no impact on surfaces

The Filter Geometry node is for selecting specific details you wish to use elsewhere. Procedural Geometry goes in and you can choose what comes out. Double-clicking on the node reveals a dropdown menu of network shapes, but there's a text entry in case the item you want is not on the list. The first output, Result, is used with the corresponding Geometry Filter input on the Info Geometry node. The Item Count output outputs the integer count of how many things have been filtered.

The For Loop node is used for repeating an operation between the start and end values.

For Loop can evaluate the input geometry multiple times with the Add Geometry transform position, rotation and scale. The loop can evaluate the Add Geometry and Add Instance nodes.

The From Mesh node will take existing mesh-based objects and use them in a Proceduaral Geometry context. Objects can be transformed or have additional options like MDD point caches or being categorised as Static.

This node converts Procedural Geometry objects into VDB objects. The output node for this node requires nodes from the OpenVDB group to continue operations before using the VDB Geometry node to continue as Procedural Geometry geometry.

You can control over Voxel Size (basically the resolution of the object) and Inner and Outer Bandwidths for objects that might not have a consistent amount of detail.

Makes a regular grid of x by y cells. You can choose to make the grid visible by using Make Polygons or just have it as a non-rendering base for other objects - instances on the grid points as an example.

Info geometry

The Lerp node linearly interpolates between vector1 and vector2 by the delta <0,1>.

Using three nulls you can create procedural lines in Layout. The first null, call it Nodes, is used for the nodes to create the line, the other two nulls are base and target. Add the Procedural Geometry modifier to the Nodes null and use Item Info nodes with the Line Geometry node to create the procedural line. This line will be rendered using the Object Properties > Edge settings. Remember, a positive number here indicates a line measured in screen pixels (no matter how near or far it is); a negative number indicates a real-world size. The Subdivide Integer input can be used to deform the line using Nodal Displacement in Object Properties.

The Point node outputs points using an expanding list of input points.
When you add an input another input will appear.

The Poly node outputs polygons of several different types. They are as follows:

• Point Polys - Single-point polygons
• Polygon - Outputs a single polygon as x
• Line Chain - Creates a chain of 2-point polys from the first indexed point to the last

The Primitive node outputs cubes, cylinders or spheres. You can dictate the number of sides for Cylinders or division level for spheres.

The Scatter Points node outputs points or single-point polygons offset from the input mesh surface.

When you don't want to affect an object completely - just some of its polys - this is the node for you.

Opening the node presents three options:

• Select Polygons - Check this and then select the polygons you want with the LMB. If you want to remove polygons from the selection, use RMB on them.
• Clear selected - Removes the whole selection, essentially deselecting the whole object. In line with the LightWave philosophy, if nothing is selected, everything is selected.
• By Surface - The dropdown represents the object's complete surface list for selection by surface.

Set position is used to modify the position of Mesh or Spline geometry in a Procedural Geometry context. The Position Vector input could be supplied by a texture or some other mechanism and the UVBlend scalar input is best fed with a gradient (because they have a built-in UV component).

This node is used for downstream access to the Spline Geometry node. The input nodes are Spline, which is always only ever fed by the Spline Info output from the Spline Geometry node and Delta, which is used for the value of the distance from the start of the loop <0,1>. The node will output Position, Forward, Tangent, Normal, Rotation and Radius at the given distance from the start of the spline. Radius is the interpolated radius values along the length. Length refers to the distance between points and Count is the current iteration.

Used to transform (change position, rotation or scale) an item in a Procedural Geometry network.

Converts from an OpenVDB SDF to Procedural Geometry geometry. You can give the resulting object a new name if desired.