Houdini 20.5 Nodes Geometry nodes

VDB Visualize Tree geometry node

Replaces a VDB volume with geometry that visualizes its structure.

Since 12.5

See volumes for an explanation of standard volumes and OpenVDB volumes.

This node may be useful to experts for checking if the VDB volume is wasting memory.

Parameters

Group

The name(s) of VDB primitives in the input to visualize. See specifying volumes.

Color

Specify whether to draw in color (which adds the Cd attribute).

Frustrum

For VDB primitives created based on a frustum, draw the corresponding frustum bounding box. See the Frustum and From camera modes of the VDB node.

Leaf Nodes

When enabled, it will draw leaf nodes with the specified method. If Color is enabled, they are drawn in blue.

Wireframe Boxes

Draw as wireframe boxes.

Solid Boxes

Draw as solid boxes.

Internal Nodes

When enabled, it will draw non-leaf nodes with the specified method. If Color is enabled, the first internal node level is shown in green, otherwise shown in orange.

Wireframe Boxes

Draw as wireframe boxes.

Solid Boxes

Draw as solid boxes.

Active Tiles

When enabled, draw nodes that are active but hold the default (empty) value in the specified method. Positive values are red, negative values are white.

Points

Draw a single point in the middle of each node.

Wireframe Boxes

Draw as wireframe boxes.

Solid Boxes

Draw as solid boxes.

Active Voxels

When enabled, draw active voxels in the specified method. They are colored red if positive valued, white if negative valued.

Points

Draw a single point in the middle of each voxel.

Wireframe Boxes

Draw as wireframe boxes.

Solid Boxes

Draw as solid boxes.

Ignore Staggered Vectors

Draw staggered vectors as if they were collocated.

Points with Index Coordinates

Add a voxel/tile index coordinate attribute to points.

Points with Values

Add a voxel/tile value attribute to points.

Name Point Attributes After Grids

When enabled, name the attribute added by Points with Values the same as its VDB grid name. If disabled or if a VDB grid has no name, the point attributes will named according to their type such as vdb_int, vdb_float, or vdb_vec3f.

See also

Geometry nodes