This network is where you (or the shelf tools) add nodes to modify the agent primitive before simulation, such as adding layers, and adding collision and rotation information for ragdoll simulation.Ĭreates an agent primitive, and sets basic information such as its name, the current layer, and the current animation clip.Īdds one or more animation clips to the agent definition. The usual convention is to name this node OUT. This will serve as a convenient node to reference for the output of the network which doesn’t change even if you add other nodes before it.
#HOUDINI PLANT SIMULATION HOW TO#
See how to set up agents for ragdoll.įinally, append another Null at the end of the network and give it the display flag. If you're going to do ragdoll simulation of agents, you need to set up collision geometry and joint limits on the agent. In the Agent Prep parameters, you can associate joints in the character with specific body parts. If you're going to do terrain adaptation (where Houdini adjusts the agent’s animation so its feet plant properly on the terrain geometry), or look at (where Houdini edits the agent’s neck joint to point its head at something), or other features that require Houdini know which joints represent which body parts, you need to append an Agent Prep node.
If you want the option to eventually cache the agent definition to disk to speed it up, you can append an Agent Definition Cache node. Set the Input to “Character Rig”, then set the Character rig field to the path to your character node.Īdd a Null. Inside the geometry network, create an Agent node. If you are importing the rest pose, you can use a clip name such as rest.Īt the Object level, create a Geometry object for the agent. Set the Clip name for the character’s animation. Specify the character asset node’s path (or the file path of the FBX / USD file). On the Crowds shelf tab, click the Agent tool.Ī dialog box appears asking for additional information about the new agent:Ĭhoose whether you are importing from a character rig asset, FBX file, USD file, or LOP node. To.Ĭreate an agent from a character using the shelf toolĪt the Object level, select the character asset you want to turn into an agent.
Crowds assume your character is encapsulated as a digital asset or in an FBX file.
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