# TriangleMeshPart(ロブロックス クラス) > Abstract intermediate class that manages physical geometry properties for PartOperations and MeshParts. - URL:https://roblox.minecraft-okinawa.com/reference/classes/TriangleMeshPart/ - 公式:https://create.roblox.com/docs/reference/engine/classes/TriangleMeshPart - 受け継いでいるクラス:BasePart ## プロパティ - `TriangleMeshPart.CollisionFidelity: CollisionFidelity`:Determines the level of detail the part's physics will adhere to its mesh. - `TriangleMeshPart.CollisionPrecision: float`:Quantifies how precise or performant a CollisionFidelity.Tunable collision geometry is, from 0 to 1. - `TriangleMeshPart.FluidFidelity: FluidFidelity`:Determines the geometric representation used to compute aerodynamic forces and torques. - `TriangleMeshPart.MeshSize: Vector3`:The original size of the part's source mesh geometry, before any scaling applied through BasePart.Size. 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/)