Houdini 20.0 Nodes Geometry nodes

APEX Scene Invoke geometry node

Fetches the results from an APEX scene evaluation.

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Since 20.0
This feature is still under development. The current functionality is unfinished and subject to change, and may have thin or no documentation. Please bear this in mind when using it.

This node fetches the results from an APEX scene evaluation. See the animation workflow for examples of how to use this node.



The frame at which to evaluate the scene.

Bind Multiple Outputs

When turned on, all the geometry outputs specified in the Outputs multiparm are merged into this node’s Output geometry.

Output All Character Shapes

Turns on Bind Multiple Outputs and populates the Outputs multiparm with all the geometry outputs supported by the animate state. Displays all the character shapes in the viewport.


Scene Output Path

The path to the output node in the scene, for example, /character.char/Base.rig/output. This typically fetches a dictionary of output data from a rig.


The entry in the Scene Output Path dictionary to fetch, for example, Base.shp. If the data at the Scene Output Path is not a dictionary, this parameter is not used.

Animation Target

When a geometry is connected to the Animation Parms input, the parms dictionary detail attribute drives the parameters on this rig.

Channel Prims Rig Path

When turned on, the animation on this rig is set from the Channel Primitives input.

Channel Primitives Path

The path to store the channel primitives in the scene. If no animation is present in the Scene input, leave this blank, and a default path will be created. If there is existing animation in the Scene input, this parameter can be used to avoid conflicts with existing animation data.

Debug Scene Graph

When turned on, all other output settings are ignored, and this node’s Output geometry is replaced with a copy of the scene.graph, a graph that is used by the scene to evaluate all the characters, tools, and constraints. See the packed character format for more information on the scene.graph.



The scene geometry to load and execute.

Animation Parms

A geometry containing a parms dictionary detail attribute used to set the parameters on the rig specified in the Animation Target parameter.

Channel Primitives

A geometry containing channel primitives used to set the animation on the rig specified in the Channel Prims Rig Path parameter.



The result fetched from the scene evaluation.

Scene Passthrough

The same scene geometry from the Scene input.

See also

Geometry nodes