Enable Mesh Partition Plugins
To use Mesh Terrain you must enable these plugins:
MeshPartition | Enables the Mesh Partition system core functionalities. |
MeshPartitionWater | Enables waterbody tools to translate to the Mesh Partition system. |
PCG MeshPartition Interop | Extra plugin for the Procedural Content Generation (PCG) framework interacting with the Mesh Partition system. |
Mesh Terrain Mode | Enables the Mesh Terrain Mode toolbar. |
Mesh Terrain Mode
After enabling the plugins, the Mesh Terrain mode is available in the editor.
The Mesh Terrain mode toolbar has 6 tabs:
Create |  | The create tab is your starting point to create your base mesh partition actor. |
Edit |  | Edit base sections of an existing mesh partition or convert regular static mesh in the level into mesh partition geometry. |
Modifiers |  | All mesh terrain modifiers are accessible here. Drag and drop any of them onto your terrain. |
Sculpt |  | Access available brushes for modifiers with sculpting capabilities. You need to first select a modifier. |
Paint |  | This enables paint mode for modifiers that have painting capabilities. You need to first select a modifier. |
Shapes |  | Add common primitive shapes to your level which you can then convert into mesh partitions. |
Mesh Partition Outliner
The Mesh Partition Outliner provides you with a consolidated view of all the modifiers, priorities, visibility, and other useful information. The modifiers are shown in build order from the bottom. Modifiers are shown in their appropriate layer.
In addition, the modifiers show a count that reflects the time to calculate the modifier. This is useful for diagnosing which modifiers have the biggest impact on processing time.
Next to the time is the "Build To" slider bar. You can slide the bar up or down to control how much of the layer stack gets built. This can be useful when you are working on a layer and you want to hide any other modifiers on top for quicker iterations.
Selecting a modifier from this panel selects the modifier component and not the root of the parent actor.
