Houdini 20.5 Nodes APEX nodes

sim::SimEngine

Creates a new dynamics simulation.

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Since 20.0

Creates a new simulation engine that is not associated with a DOP node.

Inputs

graph: ApexGraphHandle

A graph that is executed at each simulation step before solving. This can be used to create or modify simulation data, and is equivalent to the cooking pass of a traditional DOP network.

The following inputs are always provided to the graph.

engine

An ApexSimEngine that contains the simulation engine to modify.

simtime

A Float that provides the current simulation time. A value of 0 indicates the first simulation frame, which can be used for initialization such as creating objects.

Custom parameters can be passed via the sim::EvaluateAtTime node. The graph is required to have an output:engine output for the simulation engine.

timestep: Float

The length of a simulation timestep.

Outputs

engine: ApexSimEngine

The new simulation engine.

See also

APEX nodes