{"id":770,"date":"2026-11-01T16:12:29","date_gmt":"2026-11-01T07:12:29","guid":{"rendered":"https:\/\/catstudio.sakura.ne.jp\/cms001\/?p=770"},"modified":"2026-11-07T00:27:52","modified_gmt":"2026-11-06T15:27:52","slug":"how-to-place-a-flag-that-flutters-in-the-wind-in-unity-characteristics-of-bone-animation-based-assets-and-points-to-check-before-implementation","status":"publish","type":"post","link":"https:\/\/catstudio.sakura.ne.jp\/cms001\/?p=770&lang=en","title":{"rendered":"How to place a flag that flutters in the wind in Unity? Characteristics of bone-animation-based assets and points to check before implementation"},"content":{"rendered":"\n

Placing flags on city walls, in stadiums, along streets, or at event venues is an effective way to visually convey the direction of the wind or the orientation of a space. However, when considering how to implement flags in Unity, it is important to look beyond just their visual appearance\u2014you should also account for factors such as the number of flags, their placement distance, the target operating environment, and the process for swapping out designs.<\/p>\n\n\n\n

In this article, we will look at key factors to consider when choosing a flag asset, using the Unity asset “Flag Animated with Bones”\u2014which animates flags via pre-prepared bone animations rather than physics simulations\u2014as an example.<\/p>\n\n\n\n

3 points to clarify before animating a flag in Unity<\/h3>\n\n\n\n

1 How to go about moving the flags<\/h4>\n\n\n\n

Flag movement can generally be approached in two ways: using physics simulations (such as a “cloth” system) or playing back pre-created animations. While physics simulations make it easier to generate reactions tailored to specific situations, they require careful setup and functional verification. The animation-based approach, on the other hand, is well-suited for scenarios where you wish to select and utilize pre-defined motions.<\/p>\n\n\n\n

2 Consider the number of units to be placed and their distance from the camera.<\/h4>\n\n\n\n

The required specifications will vary depending on whether a flag is displayed close-up or as part of a wider scene with multiple flags. If you are planning to place multiple flags, do not rely solely on the presence or absence of LOD (Level of Detail); instead, verify both the frame rate and the visual appearance on the actual target devices and within the specific scene.<\/p>\n\n\n\n

3 Check the front and back sides, as well as the handling of the original pattern.<\/h4>\n\n\n\n

For flags featuring logos or emblems, how they appear on both the front and back is crucial. Verifying details such as the method for swapping textures, the availability of UV guides, and how the reverse side is handled will help minimize the need for rework later on.<\/p>\n\n\n\n

What is “Flag Animated with Bones”?<\/h2>\n\n\n\n

“Flag Animated with Bones” is a flag asset for Unity, provided by Cat Studio. It utilizes bone-based animation for flag movement, rather than relying on physics simulations. As of the July 2026 update, the asset includes three different flag models, allowing users to choose the one best suited to their specific needs.<\/p>\n\n\n\n

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Use three different types of flag models.<\/h3>\n\n\n\n

Currently, we offer the following three types.<\/p>\n\n\n\n