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Description
Do you need to migrate assets to a different project that uses an older Unreal Engine version ?
Have you migrated assets to an earlier version of the Unreal Engine and they don't seem to "appear" in the content browser ?
Do you want to make your assets available to people using earlier versions of Unreal Engine ?
Then what you need is to use the Asset Downgrader to downgrade those assets to the specific version you want.
Asset Downgrader will downgrade assets to 5.5.4, 5.4.4, 5.3.2, 5.2.1, 5.1.1, 5.0.3, 4.27, 4.26 . It works by first upgrading the assets to Source Version (5.6), and then applying various patches to the .uasset files in order to make them compatible with the TargetVersion, just without the newer data (i.e. nanite data is removed for a 4.27 downgrade). Do note that features of the newer unreal versions (like nanite on masked materials, new material nodes, new niagara modules) can't be ported to the old versions.
描述
您是否需要将资源迁移到使用旧版虚幻引擎的其他项目？
您是否已将资源迁移到旧版虚幻引擎，但它们似乎没有“显示”在内容浏览器中？
您是否希望将资源提供给使用旧版虚幻引擎的用户？
那么您需要使用资源降级器将这些资源降级到您想要的特定版本。
资源降级器会将资源降级到 5.5.4、5.4.4、5.3.2、5.2.1、5.1.1、5.0.3、4.27、4.26。它的工作原理是首先将资源升级到源版本 (5.6)，然后对 .uasset 文件应用各种补丁，使其与目标版本兼容，但不包含较新的数据（例如，降级到 4.27 时会删除纳米体数据）。请注意，较新的虚幻版本的功能（如蒙版材质上的纳米机器人、新材质节点、新尼亚加拉模块）无法移植到旧版本。
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