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Unreal Engine 4 Game Development Essentials by Satheesh PV

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BSP

Now that we have some solid understanding of Engine UI, let's use BSP to create a simple level. BSP is a geometry tool (also known as Geometry Brush or simply Brush) used for quickly prototyping levels (also known as blocking out levels). Some developers prefer to call this Constructive Solid Geometry (CSG), which is the more accurate term since geometry in Unreal editor is created by adding and subtracting brushes. BSP has been there since the first release of Unreal. It was used for level designing long ago but later, this role has been passed to static meshes because BSP is more expensive in performance.

So basically, BSP should only be used to prototype a level. Once you have the basic idea of how a level should look, you should start ...

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