Houdini 16.5 Networks and parameters

Pattern matching in parameters

An explanation of the special characters available in pattern-matching parameters.

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String patterns

You can use string patterns anywhere an expression function needs a name (such as a parameter or node name) to match multiple things at once.

*

Matches any string.

?

Matches any single character.

[chars]

Matches any of the characters between the square brackets. This does not support character ranges using a hyphen (you cannot do [a-z]).

^pattern

Removes strings matching pattern from the previous match.

@name

Matches attribute, object group, channel group, and/or bundle (depending on context).

Examples:

geo*

Matches everything beginning with "geo".

[gG]eo*

Matches everything beginning with "geo" or "Geo".

?eo*

Matches everything that has any character followed by "eo" and then any number of characters.

* ^geo1

Matches everything except the string "geo1".

Numeric patterns in the Group node

Notes

  • Separate multiple patterns with spaces. Commas are not allowed as separator characters.

Networks and parameters

Networks

  • Network editor

    How to create, move, copy, and edit nodes.

  • Network navigation

    How to move around the networks and move between networks.

  • Connecting (wiring) nodes

    How to connect nodes to each other to make them work together.

  • Network types and node flags

    Flags represent some state information on the node, such as which node represents the output of the network. Different network types have different flags.

  • Badges

    Badges indicate some status information about a node. They usually appear as a row of icons below the name of the node.

  • Find nodes in a network

    How to use the Find dialog to find nodes based on various criteria.

Editing parameters

Next steps

Expressions

Guru level

Reference