Whether to override the default build flags specified when creating a RayTracingAccelerationStructure.
If you set this value to true, Unity uses Renderer.rayTracingAccelerationStructureBuildFlags when it builds the acceleration structure associated with this renderer.
If you set this value to false (default) and if Renderer.rayTracingMode is RayTracingMode.DynamicGeometry then Unity uses RayTracingAccelerationStructure.Settings.buildFlagsDynamicGeometries value as build flags, otherwise RayTracingAccelerationStructure.Settings.buildFlagsStaticGeometries is used.
Additional resources: RayTracingAccelerationStructure.Build, RayTracingAccelerationStructure.CullInstances, SystemInfo.supportsRayTracing.