Houdini 17.5 Nodes TOP nodes

Map by Expression TOP node

Maps upstream work items to downstream work items using an expression

This node maps upstream static or dynamic work items to downstream static items using an expression. For more complicated mapping logic, it may be easier to use a Python Mapper

Parameters

Use Dynamic Mapping

By default, a mapper will establish dependencies between upstream static work items and downstream static work items. When this toggle is enabled, a second mapping pass will be done between any dynamic items above the mapper and static items below the mapper.

The dynamic items will be prefiltered based on the static mapping defined by the node, such that only dynamic items that descend from the selected static items will be considered.

Expression

Map Static Expression

The expression used to determine which upstream static items should be mapped to which downstream static items.

Map Dynamic Expression

When Use Dynamic Mapping is enabled, this parameter can be set to defined the expression used to map upstream dynamic items to downstream static items.

See also

TOP nodes