有用科技小编2026/09/30
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阅读13分钟《光与影33号远征队》UE5 原生 HDR 打开方法是：先在 Windows 里把 HDR 打开，再到 Sandfall 配置目录新建 Engine.ini 写入 [SystemSettings] 六行参数，设为只读后改独占全屏复测。游戏里没有 HDR 开关，画面发灰大多是系统开关没开、配置文件缺失或进游戏被删造成的。
显示器和显卡本身大多没坏，不必急着重装游戏或送修。以下方法在 Windows 10/11 实测可用。
适用系统：Windows 10/11；最后更新：2026-09-30。
画面发灰、菜单里找不到 HDR 开关，是什么情况
进游戏后画面偏灰、暗部糊成一片，翻遍「设置 → 显示」也找不到 HDR 选项，这是《光与影33号远征队》用 UE5 默认配置的常见状态，HDR 输出默认关着，游戏又没做开关界面。
Win+I 打开设置 → 系统 → 屏幕，如果「使用 HDR」是灰的、展开后写着此显示器不支持 HDR，问题就不在游戏里；如果这里能正常打开，那多半是 C:\Users\用户名\AppData\Local\Sandfall\Saved\Config\Windows 里缺了 Engine.ini，或者文件进游戏后被删掉。
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先判断问题卡在系统开关、配置文件还是显卡驱动上，再对症处理，能省去反复重装游戏的时间。
方法1 先在 Windows 里把 HDR 开关打开
系统层没开 HDR，游戏里写再多参数也不会有 HDR 输出。这是所有步骤的前提。
操作步骤
- Win+I 打开设置 → 系统 → 屏幕
- 在「亮度和颜色」下找到「使用 HDR」，把开关拨到开
- 点开 HDR 详情，看「显示器功能」是不是显示支持 HDR，而不是灰掉或标不支持
- 高级显示器设置里看最大亮度和色深，确认走的不是被压缩的低色深输出
- 笔记本要插电、确认屏幕由独显直连输出，走集显时 HDR 选项可能变灰
- 用 Win+Alt+B 快捷键快速开关 HDR，判断这个开关是不是真的能生效
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这里能正常打开，说明显示器和显卡具备 HDR 输出能力，后面改配置文件才有意义。
方法2 找到游戏的 Sandfall 配置目录
UE5 游戏的配置目录固定在 Sandfall 名下，找错目录改了也没用。用环境变量跳过去最快。
操作步骤
- Win+R → 输入 %LOCALAPPDATA% 回车
- 依次进入 Sandfall\Saved\Config\Windows
- 完整路径通常是 C:\Users\用户名\AppData\Local\Sandfall\Saved\Config\Windows
- 目录里一般只有一个 GameUserSettings.ini，看不到 Engine.ini 是正常的
- 如果连 Sandfall 文件夹都没有，先启动一次游戏让它把配置目录生成出来
- 在地址栏把这个路径复制出来备用，后面要在这里新建文件
看不到 Engine.ini 不用怀疑自己找错了地方，这个文件游戏本来就不生成，需要自己建。路径记下来，所有修改都在这个文件夹里做。
方法3 新建 Engine.ini 并写入 HDR 参数
游戏内没有 HDR 开关，只能靠 Engine.ini 的 [SystemSettings] 段把 UE5 原生 HDR 打开。参数一行都不能少，也不要合并成一行。
操作步骤
- 在 Windows 目录里右键 → 新建 → 文本文档，重命名为 Engine.ini（连扩展名一起改）
- 用记事本打开，第一行写 [SystemSettings]
- 换行写 r.AllowHDR=1
- 换行写 r.HDR.EnableHDROutput=1
- 换行写 r.HDR.Display.OutputDevice=5
- 换行写 r.HDR.Display.ColorGamut=2
- 换行写 r.HDR.UI.CompositeMode=1
- 换行写 r.HDR.UI.Level=1.5
- 保存时编码选 UTF-8，注意别存成 Engine.ini.txt，否则游戏读不到
- 把参数写进 GameUserSettings.ini 是不生效的，那个文件由游戏自己重写
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存好后双击打开看一眼，段名在第一行，六行参数各占一行。文件名和内容都对上，游戏启动时才会把 HDR 输出打开。
方法4 把 Engine.ini 设为只读，防止被删
不设只读，进游戏后 Engine.ini 会被自动删除，HDR 跟着一起失效。这一步漏掉，前面的参数就白写了。
操作步骤
- 右键 Engine.ini → 属性
- 在「常规」页勾选「只读」→ 应用 → 确定
- 再确认一次文件名没有变成 Engine.ini.txt
- 如果进游戏后文件真的不见了，关掉游戏按方法3重建一次，再补上只读
- 游戏更新版本后要回来看这个文件还在不在，必要时重新写一遍
- 以后想关掉 HDR，先取消只读再删文件，直接删会被游戏重新生成
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只读属性生效之后，游戏就没法覆盖或删除这个文件，HDR 配置能一直保留下去。
用「软领驱动大师」更省事
驱动管理会自动识别显卡型号和当前驱动版本，把驱动换成支持 HDR 输出的版本，省去自己到官网按型号一层层翻找、也不知道该选哪个版本的麻烦。
驱动搜索适合已经知道显卡型号、只想找某个具体驱动版本的情况，按型号或关键字直接搜到对应驱动包再安装，版本号对上再动手，能避开装错版本的返工。
软领是知名国产软件品牌，20 年技术沉淀、服务千万用户，软领官网 wyouhua.com 直接下载，安装无捆绑勾选项。软件里可点客服按钮联系真人客服，复杂的驱动冲突有工程师远程协助。
方法5 改独占全屏、关掉动态分辨率再重启复测
窗口化和无边框会让部分 UE5 游戏的 HDR 输出被系统合成层拦掉，看起来就像没开。配置写对了画面还发灰，先改这一项。
操作步骤
- 进游戏 → 设置 → 显示/画面
- 把「窗口模式」改成「独占全屏」
- 关闭动态分辨率、分辨率缩放一类选项，让渲染分辨率跟屏幕对齐
- 确认游戏内分辨率等于显示器的原生分辨率，比如 3840×2160
- 完全退出游戏再重新启动，切回主菜单重进不算重启
- 进游戏后看画面是否还发灰，或用 Win+Alt+B 对照一次开关前后的差别
独占全屏下 HDR 信号直接交给显示器，绕过桌面合成，这也是不少 UE5 游戏必须重启一次才生效的原因。
方法6 驱动层排查：换成支持 HDR 输出的显卡驱动
系统里 HDR 开关是灰的、或者开完没反应，多半是显卡驱动版本太旧或装残。前面几步都对了还不行，就把驱动换掉。
操作步骤
- Win+X → 设备管理器 → 显示适配器
- 看显卡上有没有黄色感叹号，右键属性里的设备状态是否报错误代码 43
- 按显卡型号去官网找对应驱动版本，或让工具按型号识别匹配再装
- 装之前可以先干净卸载旧驱动，避免版本互相覆盖
- 装完重启，再回到设置 → 系统 → 屏幕，看「使用 HDR」这次能不能打开
- 顺便查线材：4K HDR 至少要 HDMI 2.0，建议上 HDMI 2.1 或 DP 1.4
- 换个接口、换根线再复测一次，把线材和接口的问题排掉
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如果显示器本身不支持 HDR、设备管理器里也没有报错，那就是硬件能力问题，换线换驱动都不会有变化，翻一下显示器 OSD 菜单里有没有 HDR 项就能确认。
常见问题
《光与影33号远征队》里为什么找不到 HDR 开关？
游戏用的是 UE5 默认配置，没做 HDR 开关界面，原生 HDR 靠 Engine.ini 的 [SystemSettings] 段打开，系统层的开关在设置 → 系统 → 屏幕里的「使用 HDR」。
33号远征队 Engine.ini 写了 [SystemSettings] 还是没有 HDR 怎么办？
先确认文件名不是 Engine.ini.txt、编码存的是 UTF-8，再确认文件还在 Sandfall\Saved\Config\Windows 里。然后检查 Windows 的 HDR 开关是否打开、游戏是不是独占全屏。三处都对还不行，就换一版支持 HDR 输出的显卡驱动。
光与影33号远征队开了 HDR 画面还是发灰是什么原因？
多数是游戏走窗口化或无边框，HDR 信号被桌面合成层拦掉。也可能是动态分辨率开着，渲染分辨率低于屏幕原生分辨率。改成独占全屏、关掉动态分辨率，完全退出游戏再重启一次。
Engine.ini 已经设为只读，进游戏还是被删了怎么办？
多半是只读没真正应用，回属性页确认「只读」勾上并点了应用。也可能是游戏更新后重新生成了配置目录，按方法3重建文件，再设一次只读。
设备管理器显卡报代码 43，还能开 HDR 吗？
代码 43 说明显卡驱动被系统停用，这时候 Windows 里「使用 HDR」通常是灰的。先干净卸载旧驱动，再装对应型号的新驱动，重启后回设备管理器确认感叹号消失，再回去开 HDR。
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