Houdini 20.0 Nodes

Dynamics nodes dynamics node

Dynamics nodes set up the conditions and rules for dynamics simulations.

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Dynamics node (DOP) networks

DOP networks contain dynamics nodes (DOPs) that create or load objects and forces, establish the connections between them, and configure solvers for simulating their interactions.

If you use dynamics shelf tools, they will create a DOP network for you if necessary. You can also create your own DOP network at any network level of the scene.

You can have multiple DOP networks containing separate simulations. The dynamics menu lets you choose which network the shelf tools use.

See dynamics for more information on using dynamics nodes.

DOP flags




Q or B

Bypass disables the node, making it pass its data tree through to the output unchanged. This is useful for testing and visualizing the effect the node is having in the viewer.

When a node is bypassed, the flag on the left of the node is lit yellow.



When the hidden flag is on, the flag second from the right of the node is lit cyan.


Output marks the node whose output is used as the data tree for the simulation. Often this is at the end of the network, showing the cumulative output of the network, but you can move the display flag around the network.

When the display flag is on, the flag on the right of the node is lit orange, and an orange ring appears around the node.