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> 项目分享及发布 > XR开发 > 虚拟现实开发 > Oculus VR开发 > Oculus Rift > Oculus 指南 > 为Oculus Rift设置坐立式相机

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为Oculus Rift设置坐立式相机

设置UE4相机，打造坐立式Oculus Rift体验。

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步骤
最终结果
UE4项目下载

开始用UE4开发Oculus Rift上的VR项目时，首先需要考虑的一点便是确定该体验为坐立式或站立式。以下指南将讲述如何设置坐立式Oculus Rift体验的UE4项目VR相机。

步骤

以下内容将讲述如何进行坐立式Oculus Rift体验的Pawn设置。

首先打开或新建一个Pawn蓝图，然后前往视口标签的组件部分。在此处用以下命名添加以下两个组件，并将VRCamera设为VRCameraRoot的子项：


组件命名	值
场景	VRCameraRoot
相机	VRCamera

点击查看全图。

When

无论您使用的是何种VR头戴显示器，Epic都推荐以此方式设置VR相机。因为它能在不实际移动相机的情况下实现相机位置的偏移。

在Pawn蓝图中前往 事件图表（Event Graph） ，从 Event Begin Play 节点连出引线，显示"可执行操作（Executable Actions）"列表。在列表中搜索 Set Tracking Origin 节点，点击并将其添加到事件图表。

点击查看全图。
Set Tracking Origin节点拥有两个选项： 地面平面（Floor Level） 和 视线平面（Eye Level） 。针对坐立式体验，需要将Set Tracking Origin节点的原点设为 视线平面 。

点击查看全图。
接下来在 我的蓝图（My Blueprint） 标签下的 变量（Variables） 部分中新建一个名为 RiftCameraHeight 的矢量变量，并将 Z 轴值设为 121 。

对坐立式体验而言，需要将相机的高度设为真实世界中用户的坐立高度（以厘米为单位）。
然后从Set Tracking Origin节点的输出连出引线，搜索 Set Relative Location 节点，选择 SetRelativeLocation(VRCameraRoot) 选项。

点击查看全图。

将 RiftCameraHeight 变量连接到Set Relative Location节点上的 New Location 输入，然后按下"编译"按钮。操作完成后，事件图表与下图类似。

Copy Node Graph

BEGIN OBJECT
                Begin Object Class=/Script/BlueprintGraph.K2Node_Event Name="K2Node_Event_0"
   EventReference=(MemberParent=Class'/Script/Engine.Actor',MemberName="ReceiveBeginPlay")
   bOverrideFunction=True
   NodePosX=-272
   NodePosY=-16
   bCommentBubblePinned=True
   NodeGuid=0A1ED21A4BC4FFF952C8B1BD85346A9C
   CustomProperties Pin (PinId=0862FFB34FDE75E7C2ED91B15CD1119E,PinName="OutputDelegate",Direction="EGPD_Output",PinType.PinCategory="delegate",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(MemberParent=Class'/Script/Engine.Actor',MemberName="ReceiveBeginPlay"),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=CE164667454B3EB8FFA464B7925FD171,PinName="then",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(K2Node_CallFunction_0 9B118DD74D13E1A2489FEFBC87651604,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
End Object
Begin Object Class=/Script/BlueprintGraph.K2Node_CallFunction Name="K2Node_CallFunction_0"
   FunctionReference=(MemberParent=Class'/Script/HeadMountedDisplay.HeadMountedDisplayFunctionLibrary',MemberName="SetTrackingOrigin")
   NodePosX=64
   NodePosY=-16
   NodeGuid=48B45C91438E818692990A8ACF803845
   CustomProperties Pin (PinId=9B118DD74D13E1A2489FEFBC87651604,PinName="execute",PinToolTip="\nExec",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(K2Node_Event_0 CE164667454B3EB8FFA464B7925FD171,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=DB86848D4CD2762032F965A34161FE78,PinName="then",PinToolTip="\nExec",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(K2Node_CallFunction_9 DE9FB716426D0575C24DBD90B0B7F9B0,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=CF7045694A0AC748019DB7B16FD84A1F,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinToolTip="Target\n头戴显示器函数库对象引用",PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Class'/Script/HeadMountedDisplay.HeadMountedDisplayFunctionLibrary',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,DefaultObject="/Script/HeadMountedDisplay.Default__HeadMountedDisplayFunctionLibrary",PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=6E59CEE64B1A4E275A73499235912077,PinName="Origin",PinToolTip="Origin\nEHMDTrackingOrigin Enum",PinType.PinCategory="byte",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Enum'/Script/HeadMountedDisplay.EHMDTrackingOrigin',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,DefaultValue="Eye",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
End Object
Begin Object Class=/Script/UnrealEd.EdGraphNode_Comment Name="EdGraphNode_Comment_1"
   NodePosX=-54
   NodePosY=-81
   NodeWidth=544
   NodeHeight=240
   NodeComment="追踪原点应设为视线平面"
   NodeGuid=9B24193F4ED6C3FBF64C68B01AAFA782
End Object
Begin Object Class=/Script/BlueprintGraph.K2Node_VariableGet Name="K2Node_VariableGet_0"
   VariableReference=(MemberName="VRCameraRoot",bSelfContext=True)
   NodePosX=624
   NodePosY=35
   NodeGuid=70636A4A41C97ED0AB31D6B2E8E7AE84
   CustomProperties Pin (PinId=D3E17C4549E0A126BF8A2D97653C64D5,PinName="VRCameraRoot",Direction="EGPD_Output",PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Class'/Script/Engine.SceneComponent',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(K2Node_CallFunction_9 560BA9474CC7FF8D01863CB899932E82,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=2C82232F4B776E78BDFA17A5BE5C88D7,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=BlueprintGeneratedClass'/Game/Rift_Pawn_Sitting/Rift_Pawn_Sitting.Rift_Pawn_Sitting_C',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
End Object
Begin Object Class=/Script/BlueprintGraph.K2Node_CallFunction Name="K2Node_CallFunction_9"
   FunctionReference=(MemberParent=Class'/Script/Engine.SceneComponent',MemberName="K2_SetRelativeLocation")
   NodePosX=800
   NodePosY=-31
   NodeGuid=4EF05AB24E0197A031C39A8A8B2B8B3A
   CustomProperties Pin (PinId=DE9FB716426D0575C24DBD90B0B7F9B0,PinName="execute",PinToolTip="\nExec",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(K2Node_CallFunction_0 DB86848D4CD2762032F965A34161FE78,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=E5FB25D74A81ACC9C7E06593A4BC6E98,PinName="then",PinToolTip="\nExec",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=560BA9474CC7FF8D01863CB899932E82,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinToolTip="目标\n场景组件对象引用",PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=Class'/Script/Engine.SceneComponent',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(K2Node_VariableGet_0 D3E17C4549E0A126BF8A2D97653C64D5,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=4751BC714842E8CEC1B7A294186125C2,PinName="NewLocation",PinToolTip="新位置\n矢量\n\n组件相对于其父项的新位置。",PinType.PinCategory="struct",PinType.PinSubCategory="",PinType.PinSubCategoryObject=ScriptStruct'/Script/CoreUObject.Vector',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,DefaultValue="0, 0, 0",AutogeneratedDefaultValue="0, 0, 0",LinkedTo=(K2Node_VariableGet_47 78E971AE41B9BC4AA335A6BCC9E5AE69,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=42E17DA8407F1D6AE61E5AB8CE56D509,PinName="bSweep",PinToolTip="扫描\n布尔\n\n是否扫描到目标位置，沿途触发重叠，如发生碰撞则停止。只会对根组件扫描和检查阻挡碰撞，子组件移动时不带扫描。碰撞关闭后便无效果。",PinType.PinCategory="bool",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,DefaultValue="false",AutogeneratedDefaultValue="false",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=C758BE724ED2C35AF55937B09A2B53F4,PinName="SweepHitResult",PinToolTip="扫描命中结果\n命中结果结构\n\n扫描为true时来自任意影响的命中结果。",Direction="EGPD_Output",PinType.PinCategory="struct",PinType.PinSubCategory="",PinType.PinSubCategoryObject=ScriptStruct'/Script/Engine.HitResult',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=C8D4DFF74546FCDE47077A8F575C2D36,PinName="bTeleport",PinToolTip="瞬移\n布尔\n\n是否瞬移物理状态（如已为此对象启用物理碰撞）。如为true，此对象的物理速度则不会发生改变（因此布偶部件不会受位置变化影响）。如为false，则基于位置变化更新物理速度（影响布偶部件）。如CCD开启且未瞬移，这将影响沿整个扫描体积的对象。",PinType.PinCategory="bool",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,DefaultValue="false",AutogeneratedDefaultValue="false",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
End Object
Begin Object Class=/Script/BlueprintGraph.K2Node_VariableGet Name="K2Node_VariableGet_47"
   VariableReference=(MemberName="RiftCameraHeight",MemberGuid=DB0F658D4BD2CC99041C3ABB8058E5EF,bSelfContext=True)
   NodePosX=576
   NodePosY=272
   NodeGuid=3B3F090A44BA690E035446B6EEB8BE25
   CustomProperties Pin (PinId=78E971AE41B9BC4AA335A6BCC9E5AE69,PinName="RiftCameraHeight",Direction="EGPD_Output",PinType.PinCategory="struct",PinType.PinSubCategory="",PinType.PinSubCategoryObject=ScriptStruct'/Script/CoreUObject.Vector',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,DefaultValue="0, 0, 0",AutogeneratedDefaultValue="0, 0, 0",LinkedTo=(K2Node_CallFunction_9 4751BC714842E8CEC1B7A294186125C2,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=4C94FD9248478C9DD5EA5393075A2807,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinType.PinCategory="object",PinType.PinSubCategory="",PinType.PinSubCategoryObject=BlueprintGeneratedClass'/Game/Rift_Pawn_Sitting/Rift_Pawn_Sitting.Rift_Pawn_Sitting_C',PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
End Object
Begin Object Class=/Script/UnrealEd.EdGraphNode_Comment Name="EdGraphNode_Comment_2"
   CommentDepth=-2
   NodePosX=512
   NodePosY=-80
   NodeWidth=592
   NodeHeight=448
   NodeComment="偏移VRCameraRoot来移动Rift相机"
   NodeGuid=E3607E9749F360D6955336BC8E0E7F3A
End Object
Begin Object Class=/Script/UnrealEd.EdGraphNode_Comment Name="EdGraphNode_Comment_3"
   NodePosX=528
   NodePosY=192
   NodeWidth=512
   NodeHeight=160
   NodeComment="将此项设为使用者的站立高度。"
   NodeGuid=FB8FE99D4F6E5E1DDE16B1BC685412F1
End Object
END OBJECT

点击上图左上角并按下CRTL + C即可复制完成的蓝图。复制后前往蓝图事件按下CTRL + V进行粘贴。

将Pawn蓝图从内容浏览器拖入关卡，将其放置在关卡中0,0,0处。

点击查看全图。
选中放置在关卡中的Pawn蓝图，然后在 Pawn 设置下的细节面板中将 自动拥有玩家（Auto Possess Player） 从 禁用（Disabled） 改为 Player 0 。

点击查看全图。

最终结果

最后前往 主工具栏 将 播放模式（Play Mode） 改为 VR预览（VR Preview） ，然后按下播放按钮。您戴上Oculus Rift头戴显示器坐下观察关卡时，将看到与以下视频相似的内容。

UE4项目下载

可使用以下链接下载用于创建此例的UE4项目。

Oculus Rift坐立式VR相机范例项目

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