Since

22.0

Clips an SDF VDB using an implicit surface connected to the second input. This works the same way as converting the implicit surface to a VDB first and using VDB Combine to combine them, but evaluates the implicit surface directly instead of baking it into a separate VDB first, which can be faster and use less memory.

The first input provides the SDF VDBs to clip. The second input provides the implicit surface geometry, such as geometry created by the Implicit Surface SOP. If the second input does not contain any implicit surface shapes, the node does not modify the input VDBs.

Parameters ¶

VDBs to Clip

VDBs to combine with the implicit surface. These must be signed distance fields. The bandwidth of each field is respected in the CSG operation.

Do Prune

Simplifies the implicit surface while traversing the VDB tree. This can make clipping faster for complex implicit surface expressions.

Operation

How to combine the implicit surface with the signed distance field.

Intersect

Keeps only the parts of the signed distance field inside the implicit surface.

Subtract

Removes the implicit surface from the signed distance field.

Union

Merges the implicit surface with the signed distance field.

See also

Implicit Surface Implicit Surface Operation Implicit Surface Convert VDB Activate VDB Combine VDB Convex Clip SDF