Lumberyard
User Guide (Version 1.15)

Creating Navigation Areas

This topic references tools and features that are legacy. If you want to use legacy tools in Lumberyard Editor, disable the CryEntity Removal gem using the Project Configurator or the command line. To learn more about legacy features, see the Amazon Lumberyard Legacy Reference.

For a navigation mesh to be generated, a navigation area needs to be first added to your level. The bottom plane of the navigation area must be underneath the lowest point of the terrain the AI traverses, and the top plane of the navigation area must be above the height of the AI agent placed at the highest point of the terrain, allowing for plenty of clearance. If this is not done, the navigation mesh fails. A successfully created mesh will be blue in color.

Note

The ai_DebugDrawNavigation console variable must be set to 1, 2, or 3 in order that the navigable surface is displayed.

To create a Navigation Area

  1. In Lumberyard Editor, click AI, Create New Navigation Area.

  2. In the Rollup Bar, under NavigationArea, edit the Area parameter to be a non-zero value.

  3. Under NavigationArea, edit the Height parameter so that the area is tall enough to enclose any hills or valleys in the terrain, as needed.

  4. Click AI, Show Navigation Areas.

  5. In the level, drag and click to define a shape enclosing the area that the AI agent navigates through.

  6. Double-click to complete the shape.

To edit a Navigation Area

  1. In your level, hover over the where you want to make a change. Once the shape turns orange, click it.

  2. In Rollup Bar, under AI, NavigationArea, Edit Options, click Edit Shape.

  3. To create a new vertex in the navigation area, press Ctrl and click on a line in the area.

  4. To delete a portion of the navigation area, double-click on a vertex in the area.