ue4 导出渲染全景视频序列帧
因为又需要在ue4里面导出全景图片
所以在这里记录下快速导出图片的方式
顺便说一下这个用ue自带的插件导出是立体全景图片，所以会输出左右眼
这里使用的版本是ue 4.16.3
另外导出速度很慢，会一度以为是卡死了，其实并没有卡死，可以看输出目录
先在项目里勾选插件，切换项目的时候勾上
上图防止性能造成的掉帧
这个防止贴图模糊，其他一些防止贴图和渲染异常问题可以看下面的
http://blog.csdn.net/shenmifangke/article/details/52072969
然后上面两个
当然不想输入的可以打开level blueprint 把下面的复制到蓝图里去
Begin Object Class=K2Node_CallFunction Name="K2Node_CallFunction_22"
FunctionReference=(MemberParent=Class'/Script/Engine.KismetSystemLibrary',MemberName="ExecuteConsoleCommand")
NodePosX=224
NodePosY=-16
NodeGuid=11178A754D409AB621A487A830D334FA
CustomProperties Pin (PinId=30971BE3417E9BED6A6ED59AD40C7566,PinName="execute",PinToolTip="\nExec",PinType.PinCategory="exec",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(K2Node_Event_0 4DEBACD54F6CDBA70521C5A3703A5E9A,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
CustomProperties Pin (PinId=8B4F50EB42EBE0647DAE1C8E4F5727FE,PinName="then",PinToolTip="\nExec",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(K2Node_CallFunction_23 01A6FD42488A91CBE56099BA826CEB3C,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
CustomProperties Pin (PinId=31721CDF4824F2E7CB4D089286DA2A3F,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinToolTip="Target\nKismet System Library Reference",PinType.PinCategory="object",PinType.PinSubCategoryObject=Class'/Script/Engine.KismetSystemLibrary',PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,DefaultObject="/Script/Engine.Default__KismetSystemLibrary",PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
CustomProperties Pin (PinId=AEA672F945920785F2E509A08AF22748,PinName="WorldContextObject",PinToolTip="World Context Object\nObject Reference",PinType.PinCategory="object",PinType.PinSubCategoryObject=Class'/Script/CoreUObject.Object',PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
CustomProperties Pin (PinId=61ABAE364F5F1F8AD9B59C8E31882A0C,PinName="Command",PinToolTip="Command\nString\n\nCommand to send to the console",PinType.PinCategory="string",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,DefaultValue="SP.OutputDir E:/ccccc",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
CustomProperties Pin (PinId=F19B5D494174445B1306F38A20A1CB03,PinName="SpecificPlayer",PinToolTip="Specific Player\nPlayer Controller Reference\n\nIf specified, the console command will be routed through the specified player",PinType.PinCategory="object",PinType.PinSubCategoryObject=Class'/Script/Engine.PlayerController',PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
End Object
Begin Object Class=K2Node_CallFunction Name="K2Node_CallFunction_23"
FunctionReference=(MemberParent=Class'/Script/Engine.KismetSystemLibrary',MemberName="ExecuteConsoleCommand")
NodePosX=480
NodePosY=16
NodeGuid=61E787F04964F936FB0342AC79CE318A
CustomProperties Pin (PinId=01A6FD42488A91CBE56099BA826CEB3C,PinName="execute",PinToolTip="\nExec",PinType.PinCategory="exec",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(K2Node_CallFunction_22 8B4F50EB42EBE0647DAE1C8E4F5727FE,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
CustomProperties Pin (PinId=2BA80EAA42CBC1A4AF89F296A0226E01,PinName="then",PinToolTip="\nExec",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
CustomProperties Pin (PinId=3BF47BE34AF53040ADEF028D2D749950,PinName="self",PinFriendlyName=NSLOCTEXT("K2Node", "Target", "Target"),PinToolTip="Target\nKismet System Library Reference",PinType.PinCategory="object",PinType.PinSubCategoryObject=Class'/Script/Engine.KismetSystemLibrary',PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,DefaultObject="/Script/Engine.Default__KismetSystemLibrary",PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
CustomProperties Pin (PinId=6FC7C43347758A7D138E92951588D28F,PinName="WorldContextObject",PinToolTip="World Context Object\nObject Reference",PinType.PinCategory="object",PinType.PinSubCategoryObject=Class'/Script/CoreUObject.Object',PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PersistentGuid=00000000000000000000000000000000,bHidden=True,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
CustomProperties Pin (PinId=AD9934904A296DC7B4341C94499E5AC5,PinName="Command",PinToolTip="Command\nString\n\nCommand to send to the console",PinType.PinCategory="string",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,DefaultValue="SP.PanoramicMovie 0 60",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
CustomProperties Pin (PinId=6A188951457AFD3F80FA5786D9B01A62,PinName="SpecificPlayer",PinToolTip="Specific Player\nPlayer Controller Reference\n\nIf specified, the console command will be routed through the specified player",PinType.PinCategory="object",PinType.PinSubCategoryObject=Class'/Script/Engine.PlayerController',PinType.PinSubCategoryMemberReference=(),PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
End Object
一般只要弄上面的两个就行了，当然测试的时候为了速度可以减小下尺寸
控制输出图片大小可以再连一个 设置宽度，高度自动是宽度的一半
记得要把SP.StepCaptureWidth 1024放在前面，这个表示导出的图都是1024×512默认是4096×2048的
然后就能运行开始录制了，会录制到SP.PanoramicMovie设置的300帧结束
为了保证恒定帧率 还要以固定帧率打开编辑器
-usefixedtimestep -fps=60 -notexturestreaming
上面这句可以加载编辑器的快捷方式里
一般编辑器位置在
E:\Program Files\Epic Games\4.13\Engine\Binaries\Win64
E:\Program Files\Epic Games\UE_4.16\Engine\Binaries\Win64
这种位置
中文参考
https://docs.unrealengine.com/latest/CHN/Platforms/VR/StereoPanoramicCapture/QuickStart/index.html
其他设置可以参考
https://docs.unrealengine.com/latest/INT/Platforms/VR/StereoPanoramicCapture/TipsAndTricks/index.html
各个参数含义可以看这里
https://docs.unrealengine.com/latest/INT/Platforms/VR/StereoPanoramicCapture/Reference/index.html
还有一个完整的官方教程
https://www.unrealengine.com/zh-CN/blog/capturing-stereoscopic-360-screenshots-videos-movies-unreal-engine-4