Radial Blur PostProcess Material

Development Asset Creation
55

This is working in 4.14 for me:

Screenshots of Setup:

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a16534baf3b24e1ba2c3376c9a603d56.png1516×712 172 KB

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b449acb4766e4a3fa081ce0de0552cd8.png993×538 321 KB

43b6c15632d24063994afabe541adb6e.png
43b6c15632d24063994afabe541adb6e.png694×560 47.6 KB

Shader Code:



int TexIndex = 14;
float samples[10] = {-0.08,-0.05,-0.03,-0.02,-0.01,0.01,0.02,0.03,0.05,0.08};
float2 dir = ScreenMult * float2(0.5,0.5) - UV; 
float4 sum = SceneTextureLookup(UV, TexIndex, false);
float2 pos = float2(0.0,0.0);
for(int i = 0; i<10; i++)
{
    pos = UV + dir * samples* * SampleDist;
    max(min(pos, ScreenMult * float2(1.0, 1.0)), float2(0.0,0.0));
    sum += SceneTextureLookup(pos, TexIndex, false);
}
sum *= 1.0/11.0;
return sum;

Material Nodes:



Begin Object Class=MaterialGraphNode_Root Name="MaterialGraphNode_Root_2"
   Material=PreviewMaterial'/Engine/Transient.M_PostProcess_RadialBlur2017'
   NodeGuid=ECFE7A4B4D64B8DA0AF6F7BE06BE32F0
   CustomProperties Pin (PinId=2144770340438D0CCFF3879C39532998,PinName="Base Color",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=94F8218544DC5C08A29419B1BEEDA91E,PinName="Metallic",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=DE7A06FB4DD81005A599479905FF0A86,PinName="Specular",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=2D9765474EA0FF0C13D1C2A9260ECB30,PinName="Roughness",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=5D1EA7B546161A8303EB8E82E0627E94,PinName="Emissive Color",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_19 7551BF394DC3B85914521B995E02CD54,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
   CustomProperties Pin (PinId=54A0A5A148B1D6475146EC84364FEDD5,PinName="Opacity",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=4081B6FF48B80EEFFB658A8871EF17ED,PinName="Opacity Mask",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=7F1E1C9041833B68959C6BA612B0473B,PinName="Normal",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=AB50E72B436FB7A8ED70DF91E6E40CDE,PinName="World Position Offset",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=31FA412A462D2E1F2EFA9394725401D7,PinName="World Displacement",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=07229DCD4D18E30733C8A39B8C703D68,PinName="Tessellation Multiplier",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=F0106EDE4BD8D83B6FD561BACB62465B,PinName="Subsurface Color",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=88E4139D466AC624B765F185B7E22822,PinName="Custom Data 0",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=7D292A0C4DA8E8728D07638C43A862A7,PinName="Custom Data 1",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=D50FB8954BE60DF157328A9696774DD3,PinName="Ambient Occlusion",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=37A44BD749EF57FAF593FA9865ECC308,PinName="Refraction",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=5FB5A31C4C53847EA58FC68D5ED4B395,PinName="Customized UV0",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=F257101D452130AABC9C908144B36852,PinName="Customized UV1",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=0DEF406F4C12E52FB510458477987022,PinName="Customized UV2",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=A2CF7DBC4C81477AF479B0902C786129,PinName="Customized UV3",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=B5F3C99641FE2E7DF78EFAA34D65500C,PinName="Customized UV4",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=7FED0D934FA184EE1442E4B701A2AC89,PinName="Customized UV5",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=F798BA08418CD62AA3AD09AD62D30D90,PinName="Customized UV6",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=93065DC54B89D3DF274A4DA91957654F,PinName="Customized UV7",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=4B1AAEE3484AAA724902D6AA50237825,PinName="Pixel Depth Offset",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=47A5687E48A28DBC97D32682A2F92A7C,PinName="Material Attributes",PinType.PinCategory="materialinput",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_19"
   Begin Object Class=MaterialExpressionLinearInterpolate Name="MaterialExpressionLinearInterpolate_0"
   End Object
   Begin Object Name="MaterialExpressionLinearInterpolate_0"
      A=(Expression=MaterialExpressionCustom'MaterialGraphNode_22.MaterialExpressionCustom_0')
      B=(Expression=MaterialExpressionSceneTexture'MaterialGraphNode_21.MaterialExpressionSceneTexture_0',Mask=1,MaskR=1,MaskG=1,MaskB=1,MaskA=1)
      Alpha=(Expression=MaterialExpressionMaterialFunctionCall'MaterialGraphNode_25.MaterialExpressionMaterialFunctionCall_4')
      MaterialExpressionEditorX=-176
      MaterialExpressionEditorY=112
      MaterialExpressionGuid=43A9AE0049A776174A0B92B054C6AB5B
      Material=PreviewMaterial'/Engine/Transient.M_PostProcess_RadialBlur2017'
   End Object
   MaterialExpression=MaterialExpressionLinearInterpolate'MaterialExpressionLinearInterpolate_0'
   NodePosX=-176
   NodePosY=112
   NodeGuid=4B46DD904BD9E8DC9AFF508215FAE323
   CustomProperties Pin (PinId=9CCF75AB40AE88EEA9545CB567EAE9EA,PinName="A",PinType.PinCategory="optional",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_22 2AC08E4E4954B2F0ACC56A8142DA97C2,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
   CustomProperties Pin (PinId=C92B5DF04FD9019BEA9C7BA5E8F12171,PinName="B",PinType.PinCategory="optional",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_21 F308358248B22748754F468116DC39C8,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
   CustomProperties Pin (PinId=0413550A4D5787480B2908ACB2CCD942,PinName="Alpha",PinType.PinCategory="optional",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_25 510D57C742550B7BFE48EF82F95F11F3,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
   CustomProperties Pin (PinId=7551BF394DC3B85914521B995E02CD54,PinName="Output",PinFriendlyName=" ",Direction="EGPD_Output",PinType.PinCategory="",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_Root_2 5D1EA7B546161A8303EB8E82E0627E94,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_20"
   Begin Object Class=MaterialExpressionScreenPosition Name="MaterialExpressionScreenPosition_0"
   End Object
   Begin Object Name="MaterialExpressionScreenPosition_0"
      MaterialExpressionEditorX=-1024
      MaterialExpressionEditorY=-16
      MaterialExpressionGuid=FE15A11344CA53920E5DD2A0BDB2D846
      Material=PreviewMaterial'/Engine/Transient.M_PostProcess_RadialBlur2017'
   End Object
   MaterialExpression=MaterialExpressionScreenPosition'MaterialExpressionScreenPosition_0'
   NodePosX=-1024
   NodePosY=-16
   NodeGuid=211C98EB492BC72137F773B41CB6B102
   CustomProperties Pin (PinId=6453A44C47ED645881A848845A747D11,PinName="Output",PinFriendlyName=" ",Direction="EGPD_Output",PinType.PinCategory="",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_22 177AC35542836CE758FB9C8DEB695A7C,MaterialGraphNode_24 206841EE487E15DE005888894B5B3A9F,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_21"
   Begin Object Class=MaterialExpressionSceneTexture Name="MaterialExpressionSceneTexture_0"
   End Object
   Begin Object Name="MaterialExpressionSceneTexture_0"
      SceneTextureId=PPI_PostProcessInput0
      MaterialExpressionEditorX=-544
      MaterialExpressionEditorY=176
      MaterialExpressionGuid=1203879E411BCB45BC5F2DA7A5423DD1
      Material=PreviewMaterial'/Engine/Transient.M_PostProcess_RadialBlur2017'
   End Object
   MaterialExpression=MaterialExpressionSceneTexture'MaterialExpressionSceneTexture_0'
   NodePosX=-544
   NodePosY=176
   NodeGuid=6C0FE2664E7A6187B6CBCC86B968C47A
   CustomProperties Pin (PinId=538DB97F4FEC638E34E7A89E20443727,PinName="UVs",PinType.PinCategory="optional",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=F308358248B22748754F468116DC39C8,PinName="Color",Direction="EGPD_Output",PinType.PinCategory="mask",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_19 C92B5DF04FD9019BEA9C7BA5E8F12171,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
   CustomProperties Pin (PinId=23372294479F68103EED3DA81C94130F,PinName="Size",Direction="EGPD_Output",PinType.PinCategory="",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=5C8EB00549949398BB8771BF102848C4,PinName="InvSize",Direction="EGPD_Output",PinType.PinCategory="",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_22"
   Begin Object Class=MaterialExpressionCustom Name="MaterialExpressionCustom_0"
   End Object
   Begin Object Name="MaterialExpressionCustom_0"
      Code="int TexIndex = 14;
float samples[10] = {-0.08,-0.05,-0.03,-0.02,-0.01,0.01,0.02,0.03,0.05,0.08};
float2 dir = ScreenMult * float2(0.5,0.5) - UV; 
float4 sum = SceneTextureLookup(UV, TexIndex, false);
float2 pos = float2(0.0,0.0);
for(int i = 0; i<10; i++)
{
    pos = UV + dir * samples* * SampleDist;
    max(min(pos, ScreenMult * float2(1.0, 1.0)), float2(0.0,0.0));
    sum += SceneTextureLookup(pos, TexIndex, false);
}
sum *= 1.0/11.0;
return sum;"
      OutputType=CMOT_Float4
      Description="RadialBlur"
      Inputs(0)=(InputName="UV",Input=(Expression=MaterialExpressionScreenPosition'MaterialGraphNode_20.MaterialExpressionScreenPosition_0'))
      Inputs(1)=(InputName="SampleDist",Input=(Expression=MaterialExpressionScalarParameter'MaterialGraphNode_23.MaterialExpressionScalarParameter_0'))
      Inputs(2)=(InputName="ScreenMult",Input=(Expression=MaterialExpressionDivide'MaterialGraphNode_30.MaterialExpressionDivide_1'))
      MaterialExpressionEditorX=-480
      MaterialExpressionGuid=B6DFB993455890C7BAA545B1D02B4D57
      Material=PreviewMaterial'/Engine/Transient.M_PostProcess_RadialBlur2017'
      Desc="
*** Original source before expression upgrade ***
float2 ScreenMult = GetPostProcessInputSize(0).xy / View.RenderTargetSize;
int TexIndex = 14;
float samples[10] = {-0.08,-0.05,-0.03,-0.02,-0.01,0.01,0.02,0.03,0.05,0.08};
float2 dir = ScreenMult * float2(0.5,0.5) - UV; 
float4 sum = SceneTextureLookup(UV, TexIndex, false);
float2 pos = float2(0.0,0.0);
for(int i = 0; i<10; i++)
{
    pos = UV + dir * samples* * SampleDist;
    max(min(pos, ScreenMult * float2(1.0, 1.0)), float2(0.0,0.0));
    sum += SceneTextureLookup(pos, TexIndex, false);
}
sum *= 1.0/11.0;
return sum;"
      bCollapsed=True
   End Object
   MaterialExpression=MaterialExpressionCustom'MaterialExpressionCustom_0'
   NodePosX=-480
   NodeComment="
*** Original source before expression upgrade ***
float2 ScreenMult = GetPostProcessInputSize(0).xy / View.RenderTargetSize;
int TexIndex = 14;
float samples[10] = {-0.08,-0.05,-0.03,-0.02,-0.01,0.01,0.02,0.03,0.05,0.08};
float2 dir = ScreenMult * float2(0.5,0.5) - UV; 
float4 sum = SceneTextureLookup(UV, TexIndex, false);
float2 pos = float2(0.0,0.0);
for(int i = 0; i<10; i++)
{
    pos = UV + dir * samples* * SampleDist;
    max(min(pos, ScreenMult * float2(1.0, 1.0)), float2(0.0,0.0));
    sum += SceneTextureLookup(pos, TexIndex, false);
}
sum *= 1.0/11.0;
return sum;"
   ErrorType=1
   ErrorMsg="Custom material RadialBlur missing input 4 (sampleDist)"
   NodeGuid=ACBF390447C84AFFC1928AA713EEEA25
   CustomProperties Pin (PinId=177AC35542836CE758FB9C8DEB695A7C,PinName="UV",PinType.PinCategory="required",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_20 6453A44C47ED645881A848845A747D11,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
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End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_23"
   Begin Object Class=MaterialExpressionScalarParameter Name="MaterialExpressionScalarParameter_0"
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   Begin Object Name="MaterialExpressionScalarParameter_0"
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End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_24"
   Begin Object Class=MaterialExpressionMaterialFunctionCall Name="MaterialExpressionMaterialFunctionCall_3"
   End Object
   Begin Object Name="MaterialExpressionMaterialFunctionCall_3"
      MaterialFunction=MaterialFunction'/Engine/Functions/Engine_MaterialFunctions02/Texturing/ScreenAlignedUVs.ScreenAlignedUVs'
      FunctionInputs(0)=(ExpressionInputId=171B9A424E2AFE2A77A885B10D226783,Input=(Expression=MaterialExpressionScreenPosition'MaterialGraphNode_20.MaterialExpressionScreenPosition_0',InputName="Texture Dimensions"))
      FunctionOutputs(0)=(ExpressionOutputId=0B62F82A4407238F0BA4FE86805D8B50,Output=(OutputName="X 100%, Y 100%"))
      FunctionOutputs(1)=(ExpressionOutputId=454DEEEF4E56FE982167C3BFB1A643DB,Output=(OutputName="X 100%, Y Scale to Ratio"))
      FunctionOutputs(2)=(ExpressionOutputId=062C44A6472525194EA716AA80688F9D,Output=(OutputName="X Scale to Ratio, Y 100%"))
      MaterialExpressionEditorX=-864
      MaterialExpressionEditorY=320
      MaterialExpressionGuid=98969B6F4B879034F9AD6F8A776EB2CF
      Material=PreviewMaterial'/Engine/Transient.M_PostProcess_RadialBlur2017'
      Outputs(0)=(OutputName="X 100%, Y 100%")
      Outputs(1)=(OutputName="X 100%, Y Scale to Ratio")
      Outputs(2)=(OutputName="X Scale to Ratio, Y 100%")
   End Object
   MaterialExpression=MaterialExpressionMaterialFunctionCall'MaterialExpressionMaterialFunctionCall_3'
   NodePosX=-864
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   NodeGuid=12F9EEA24B5E4AA8FE6AADA789D63535
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   CustomProperties Pin (PinId=B5616A6940385E6BEC8E67B110B29592,PinName="X 100%, Y 100%",Direction="EGPD_Output",PinType.PinCategory="",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_25 AA4E585F49F84B8BC92C00A8BBFAD786,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
   CustomProperties Pin (PinId=88B4FFDA48793FEE9C53E3AEB98F2D9E,PinName="X 100%, Y Scale to Ratio",Direction="EGPD_Output",PinType.PinCategory="",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=DA837BEF45D9C72B93F3D393907D5F71,PinName="X Scale to Ratio, Y 100%",Direction="EGPD_Output",PinType.PinCategory="",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_25"
   Begin Object Class=MaterialExpressionMaterialFunctionCall Name="MaterialExpressionMaterialFunctionCall_4"
   End Object
   Begin Object Name="MaterialExpressionMaterialFunctionCall_4"
      MaterialFunction=MaterialFunction'/Engine/Functions/Engine_MaterialFunctions01/Gradient/RadialGradientExponential.RadialGradientExponential'
      FunctionInputs(0)=(ExpressionInputId=D38E6C0F499293F6CC65C0AE55AE0D4E,Input=(Expression=MaterialExpressionMaterialFunctionCall'MaterialGraphNode_24.MaterialExpressionMaterialFunctionCall_3',InputName="UVs"))
      FunctionInputs(1)=(ExpressionInputId=2997555B436C735459B9D695B58F219E,Input=(OutputIndex=-1,InputName="CenterPosition"))
      FunctionInputs(2)=(ExpressionInputId=B330351C4B254660CCDCA5923C8F3F26,Input=(Expression=MaterialExpressionScalarParameter'MaterialGraphNode_26.MaterialExpressionScalarParameter_1',InputName="Radius"))
      FunctionInputs(3)=(ExpressionInputId=2B61E834449DAE3BC4D079B953B5DE0E,Input=(Expression=MaterialExpressionScalarParameter'MaterialGraphNode_27.MaterialExpressionScalarParameter_2',InputName="Density"))
      FunctionInputs(4)=(ExpressionInputId=7D5AC5254448D12A92351AA36BEED90A,Input=(OutputIndex=-1,InputName="Invert Density"))
      FunctionOutputs(0)=(ExpressionOutputId=8D0763534D7AAC86623FB1AE8CD0CC39,Output=(OutputName="RadialGradientExponential"))
      MaterialExpressionEditorX=-512
      MaterialExpressionEditorY=416
      MaterialExpressionGuid=5249FC1140C4BF1C89A75C8FC79CADE0
      Material=PreviewMaterial'/Engine/Transient.M_PostProcess_RadialBlur2017'
      Outputs(0)=(OutputName="RadialGradientExponential")
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   MaterialExpression=MaterialExpressionMaterialFunctionCall'MaterialExpressionMaterialFunctionCall_4'
   NodePosX=-512
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   NodeGuid=9CEC110447EE7FF35539B8967F22BA97
   CustomProperties Pin (PinId=AA4E585F49F84B8BC92C00A8BBFAD786,PinName="UVs (V2)",PinType.PinCategory="optional",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_24 B5616A6940385E6BEC8E67B110B29592,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
   CustomProperties Pin (PinId=A25D34CD41971EE91074E98AA808828D,PinName="CenterPosition (V2)",PinType.PinCategory="optional",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
   CustomProperties Pin (PinId=64F5A3384EEE6B638DD4E59217AA6F87,PinName="Radius (S)",PinType.PinCategory="optional",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_26 ADD6D5C24C9DCE4714FAE0B49796CAC8,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
   CustomProperties Pin (PinId=460C45C9474EF6EBB47653B2014A9FCF,PinName="Density (S)",PinType.PinCategory="optional",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_27 939CD9664844BBCE62B16BBCDB21DFF0,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
   CustomProperties Pin (PinId=EBDC1A0F47E208FDDFA05EA73EF4B5E7,PinName="Invert Density (B)",PinType.PinCategory="optional",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),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,)
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End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_26"
   Begin Object Class=MaterialExpressionScalarParameter Name="MaterialExpressionScalarParameter_1"
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   Begin Object Name="MaterialExpressionScalarParameter_1"
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End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_27"
   Begin Object Class=MaterialExpressionScalarParameter Name="MaterialExpressionScalarParameter_2"
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   Begin Object Name="MaterialExpressionScalarParameter_2"
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End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_28"
   Begin Object Class=MaterialExpressionViewSize Name="MaterialExpressionViewSize_1"
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End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_29"
   Begin Object Class=MaterialExpressionMaterialFunctionCall Name="MaterialExpressionMaterialFunctionCall_5"
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   Begin Object Name="MaterialExpressionMaterialFunctionCall_5"
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   End Object
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   CustomProperties Pin (PinId=446D6EE54E4C55D8D8213A8EDBAAA1E6,PinName="Buffer Resolution",Direction="EGPD_Output",PinType.PinCategory="",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.bIsMap=False,PinType.bIsSet=False,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_30 2DEC1D0F470001B3F65D879EB69654F7,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,)
End Object
Begin Object Class=MaterialGraphNode Name="MaterialGraphNode_30"
   Begin Object Class=MaterialExpressionDivide Name="MaterialExpressionDivide_1"
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End Object

Enjoy!