bMinimizeBSPSections

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Unreal Engine C++ API Reference > Runtime > Engine > GameFramework > AWorldSettings

Syntax

uint8 bMinimizeBSPSections: 1  
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Remarks

Causes the BSP build to generate as few sections as possible. This is useful when you need to reduce draw calls but can reduce texture streaming efficiency and effective lightmap resolution. Note - changes require a rebuild to propagate. Also, be sure to select all surfaces and make sure they all have the same flags to minimize section count.