Creating a Pedestrian Crowd Simulation

You can create a basic pedestrian crowd simulation using the CrowdFX Simulation Create New Pedestrian Crowd command.

The Behavior ICE tree for this basic pedestrian crowd set up is shown below.

This command also provides an all-in-one PedestrianSetup interface to create your pedestrian crowd by importing models, selecting action sources, and adding actors.

This interface provides the following commands to get models and their action sources into your pedestrian crowd simulation.

• Import — Opens a browser from which you can select a model (.emdl file).
• Get From Scene — Prompts you to pick a model or the envelope mesh of a character that is in the scene. If you pick a model, you will be prompted to select the body envelope mesh to use if there are other meshes in this model.
• Default Pedestrian — Displays a basic character, which is shipped with Softimage.

To create a pedestrian crowd simulation using the PedestrianSetup interface

1. Import or select a model by clicking the Import, Get From Scene, or Default Pedestrian button.

   The PedestrianSetup interface displays the details of the model.

   

   The Define Animation Sources section in the interface displays the name of the model for your reference, the Idle and Movement action sources, and an option to select the center of gravity depending on the type of animation in the action sources in the model.

2. Define the Idle animation state by selecting an action source from the Source drop-down list.
3. In the Movement section, select the animation sources for actors.

   By default, the Walking and Running are selected as animation states when the actors transition from one movement to another.

4. Click Add Animation Source or Remove Animation Source to add or remove one or more action sources.
5. Turn off the Use Center of Gravity option, if the action sources are not locomotion types, such as sitting, standing, falling, or waving type animations.
6. (Optional) Click Get Additional Actor, if you want to add more actors to your pedestrian crowd scene.

   The names of all the actors that you add to your crowd scene appears in the Added Actors section in the PedestrianSetup interface.

   

7. Click Create Pedestrian Crowd.

   This creates a pedestrian crowd simulation.

You can now add goals, walls, terrain, and so on to your pedestrian crowd scene by following the procedure in the Overview of the CrowdFX Workflow.

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