On this page	Parameters Locals Examples
Since	21.0

Split by Expression divides geometry into two separate streams, the portion for which the VEX expression evaluates to true and the portion that evaluates to false.

• Unlike Wrangle nodes, you do not have to write a complete VEX statement, only a VEX expression.

• You can use the VEX function ch to evaluate parameters.

• Unlike the Attrib Create SOP, this does not use local variables. Further, all backtick expressions and $F variables will be evaluated at frame 1, not the current time. Use @Frame, @Time, or @TimeInc instead.

The VEX snippet parameter lets you enter a snippet of VEX code to run on the input geometry. See VEX snippets for basic information on the syntax available in the snippet parameter.

Parameters ¶

Group

Name of the group to split. Elements outside of the group will output to the second stream along with elements within the group that evaluate to false.

Group Type

What type of group to split.

Run Over

Apply the VEX code to each component of this type (points, primitives/faces, or vertices). For each component, the code runs with attributes bound to variables starting with @ (for example @Cd) for reading and writing.

Invert Selection

Negates the sense of the selection. Instead of sending things that match on the first output, send things that match as the second output.

VEXpression

A single expression in VEX, with no assignment or semi-colon. Select the parameter dropdown to preview examples. If the expression contains a ch call, press the button to the left of the dropdown to create spare parameters.

Locals ¶

Examples ¶

• Example File

See also

Group Expression Split