# FluidFidelity(ロブロックス 列挙型(Enum)) > Determines the geometric representation used to compute aerodynamic forces. - URL:https://roblox.minecraft-okinawa.com/reference/enums/FluidFidelity/ - 公式:https://create.roblox.com/docs/reference/engine/enums/FluidFidelity ## 選べる値 - Enum.FluidFidelity.Automatic(0):Let the physics engine select the geometric representation for aerodynamic force and torque calculations. - Enum.FluidFidelity.UseCollisionGeometry(1):Use the current collision geometry specified by TriangleMeshPart.CollisionFidelity for aerodynamic force and torque calculations . - Enum.FluidFidelity.UsePreciseGeometry(2):Force the engine to compute aerodynamic forces and torques using a more precise geometry representation based on the original mesh. This option may increase join and replication time if used on a large scale. 英語の説明とメンバー一覧:Roblox Creator Documentation(CC BY 4.0)。日本語の解説はこのサイト独自のものです。 執筆:鈴木孝昌(現役プロジェクトマネージャー/プログラミング講師)/運営:沖縄マイクラ部 プログラミングスクール「クロスウェーブ」(https://minecraft-okinawa.com/)