If no existing Static Mesh fills the area, instead of tasking the art team to create a custom mesh, the designer can use Geometry Brushes to fill the space. Often, when a level designer is creating their level, they will come upon a situation where they need a relatively simple piece of geometry to fill in a gap or space. This replacement process allows for faster initial iterations and provides an excellent reference for the art team. The level designer can use the tools built into the Unreal Editor to create and modify the Geometry Brushes until they are happy with the layout and the way the level plays.Īs testing finalizes and meshing begins, the level designer gradually replaces Geometry Brushes with Static Meshes. Geometry Brushes are perfect for this aspect of the level design process because it does not require any time or involvement from the art team. You can do this by using Geometry Brushes to create a shell for the level, then, through testing and iterating, the team agrees on the final layout. The first step is to block out the level to figure out the layout and flow before putting any time into populating the level with Static Meshes and other finished art assets. This document goes over the use of Geometry Brushes and how to utilize them for your level. However, Geometry Brushes can still be helpful in the early stages of a product for rapid prototyping of levels and objects, espcially those who do not have access to 3D modeling tools.

However, that role has been passed on to Static Meshes, which are far more efficient.

Previously, Geometry Brushes were used as the primary building block in level design.

You can use the brushes to create basic shapes for your level design process, either as permanent fixtures or as something temporary to test while your artists create the final meshes. Conceptually, it is best to think of a Geometry Brush as filling in and carving out volumes of space in your level. Geometry Brushes, also known as Binary Space Partitioning (BSP) Brushes, is Unreal Engine's tool for level construction.

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