blueprint
Calculate On Screen Width

Exposure: public
UE Version: 5.0
extralush

May 16, 2022, 9:06 am
Function for calculating the screen width in centimeters. Basically the size of an object that would fill the width of the screen at a specified distance. Useful for doing other camera calculations like Dolly Zooms.
ScreenWidth = Distance × Tan( FOV / 2 ) × 2
Code to copy
Begin Object Class=/Script/BlueprintGraph.K2Node_FunctionEntry Name="K2Node_FunctionEntry_0"
   ExtraFlags=469893120
   FunctionReference=(MemberName="CalculateOnscreenWidth")
   bIsEditable=True
   NodePosX=48
   NodeGuid=1588597F4F08DD045D0EAB9068A52DC1
   CustomProperties Pin (PinId=48D282874A0EE1F5598F56B5FA2D96D4,PinName="then",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,LinkedTo=(K2Node_FunctionResult_0 20A81C6B4121D4400E2B6C990CB6FA62,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=C845C5814F6E64EE739070BB225CAE73,PinName="Field of View",Direction="EGPD_Output",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,LinkedTo=(K2Node_PromotableOperator_1 EF2D781B48601D10DEB0FD9AC6957A52,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=AA2805C94436F146319968969D36C970,PinName="Distance",Direction="EGPD_Output",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,LinkedTo=(K2Node_Knot_0 AC5A65F04F407C65EEE3469034BAD6C5,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties UserDefinedPin (PinName="Field of View",PinType=(PinCategory="float"),DesiredPinDirection=EGPD_Output)
   CustomProperties UserDefinedPin (PinName="Distance",PinType=(PinCategory="float"),DesiredPinDirection=EGPD_Output)
End Object
Begin Object Class=/Script/BlueprintGraph.K2Node_FunctionResult Name="K2Node_FunctionResult_0"
   FunctionReference=(MemberName="CalculateOnscreenWidth")
   bIsEditable=True
   NodePosX=1120
   NodeGuid=ACAF04144C0E77BC8287939069676517
   CustomProperties Pin (PinId=20A81C6B4121D4400E2B6C990CB6FA62,PinName="execute",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,LinkedTo=(K2Node_FunctionEntry_0 48D282874A0EE1F5598F56B5FA2D96D4,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=61F48B40485E36D6B54E84B31D6C3743,PinName="Width",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,DefaultValue="0.0",AutogeneratedDefaultValue="0.0",LinkedTo=(K2Node_PromotableOperator_2 8FAB9FDA46FE445CEB651DA0E15FC496,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties UserDefinedPin (PinName="Width",PinType=(PinCategory="float"),DesiredPinDirection=EGPD_Input,PinDefaultValue="0.0")
End Object
Begin Object Class=/Script/BlueprintGraph.K2Node_PromotableOperator Name="K2Node_PromotableOperator_0"
   bIsPureFunc=True
   FunctionReference=(MemberParent=Class'"/Script/Engine.KismetMathLibrary"',MemberName="Multiply_FloatFloat")
   NodePosX=768
   NodePosY=64
   NodeGuid=B74FF81A47668169EC97B5801C1C623C
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   CustomProperties Pin (PinId=170A82E34C8FD78182869AABA2D81B13,PinName="B",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,LinkedTo=(K2Node_Knot_1 AA734CD64D0EAF1BA42734906834322F,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=ABD080274721A4DC46FE068B5E3CFCD2,PinName="ReturnValue",Direction="EGPD_Output",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,LinkedTo=(K2Node_PromotableOperator_2 7746DBC142A93A8191E83B81530C49D4,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
End Object
Begin Object Class=/Script/BlueprintGraph.K2Node_Knot Name="K2Node_Knot_0"
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   CustomProperties Pin (PinId=59EA1DE841E96BFFC2C635A109C3BAE3,PinName="OutputPin",Direction="EGPD_Output",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,LinkedTo=(K2Node_Knot_1 813F45B643DE20B95CFD4F8341356621,),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"
   bIsPureFunc=True
   FunctionReference=(MemberParent=Class'"/Script/Engine.KismetMathLibrary"',MemberName="DegTan")
   NodePosX=544
   NodePosY=64
   NodeGuid=F1AAB7DD4B889B2F49A7DAB44BFAA0F9
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   CustomProperties Pin (PinId=3C9D7E3E417B725B1E20E5A034AE31B9,PinName="A",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,DefaultValue="0.0",AutogeneratedDefaultValue="0.0",LinkedTo=(K2Node_PromotableOperator_1 7218134743D0878F079D1993636E3C8D,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=E2092D414562FD3DC87148ABB8AB9419,PinName="ReturnValue",Direction="EGPD_Output",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,DefaultValue="0.0",AutogeneratedDefaultValue="0.0",LinkedTo=(K2Node_PromotableOperator_0 8804ABE3459EC476FC1D9C9AAF438983,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
End Object
Begin Object Class=/Script/BlueprintGraph.K2Node_PromotableOperator Name="K2Node_PromotableOperator_1"
   bIsPureFunc=True
   FunctionReference=(MemberParent=Class'"/Script/Engine.KismetMathLibrary"',MemberName="Divide_FloatFloat")
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   CustomProperties Pin (PinId=EF2D781B48601D10DEB0FD9AC6957A52,PinName="A",PinToolTip="A\nFloat",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,LinkedTo=(K2Node_FunctionEntry_0 C845C5814F6E64EE739070BB225CAE73,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=A17FEF014738F8685C793B9766F0AA23,PinName="B",PinToolTip="B\nFloat",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,DefaultValue="2.000000",PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=7218134743D0878F079D1993636E3C8D,PinName="ReturnValue",PinToolTip="Return Value\nFloat\n\nDivision (A / B)",Direction="EGPD_Output",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,LinkedTo=(K2Node_CallFunction_0 3C9D7E3E417B725B1E20E5A034AE31B9,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
End Object
Begin Object Class=/Script/BlueprintGraph.K2Node_Knot Name="K2Node_Knot_1"
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   NodeGuid=6C1554E04885A90BA97A92AEA5414B2F
   CustomProperties Pin (PinId=813F45B643DE20B95CFD4F8341356621,PinName="InputPin",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,LinkedTo=(K2Node_Knot_0 59EA1DE841E96BFFC2C635A109C3BAE3,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=True,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=AA734CD64D0EAF1BA42734906834322F,PinName="OutputPin",Direction="EGPD_Output",PinType.PinCategory="float",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,LinkedTo=(K2Node_PromotableOperator_0 170A82E34C8FD78182869AABA2D81B13,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
End Object
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End Object
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Calculate On Screen Width

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