Transform multiple 3d objects, but rendering separately

I think this is a kindof fundamental Fusion question. Let's say I have two 3d objects. I want to render each with their own 3D Renderer. However, I want them both to share the same 3D Transform, so that I can animate them together with a single node.

Would this have to be achieved by linking them via expression to the 3D transform (wirelessly), or can it be done with wires?

In other words, I want them to share a transform, but not share the same render pipeline.

The easiest way to go about this is probably by copy/pasting an instance of your 3D transform, this will create a two way link between the two, so that if you change one you change them both.

Or you can use two branched off override3D tools and the Object IDs to make every object seperately unseen by the camera and render those seperately. It all kind of depends on what it is exactly that you want to achieve.

Here's an example, provided by Michael Vorberg in another thread, of the same scene going to two different renderers in order to produce a shadow pass:

Code: Select all

{
   Tools = ordered() {
      SpotLight1 = LightSpot {
         CtrlWZoom = false,
         Inputs = {
            ["Transform3DOp.Translate.X"] = Input { Value = 2.66145668314653, },
            ["Transform3DOp.Translate.Y"] = Input { Value = 1.55006229670701, },
            ["Transform3DOp.Translate.Z"] = Input { Value = 2.55224512930519, },
            ["Transform3DOp.Rotate.X"] = Input { Value = -22.7999992370605, },
            ["Transform3DOp.Rotate.Y"] = Input { Value = 46.2000007629395, },
            PenumbraAngle = Input { Value = 5.13, },
            ["ShadowLightInputs3D.Nest"] = Input { Value = 1, },
            ["ShadowLightInputs3D.SoftnessType"] = Input { Value = FuID { "Variable" }, },
         },
         ViewInfo = OperatorInfo { Pos = { 550, 148.5 } },
      },
      Text3D1 = Text3D {
         Inputs = {
            Font = Input { Value = "Open Sans", },
            StyledText = Input { Value = "Shadows", },
            Style = Input { Value = "Bold", },
            ExtrusionProfile = Input {
               SourceOp = "Text3D1ExtrusionProfile",
               Source = "Value",
            },
            ExtrusionDepth = Input { Value = 0.0636, },
            ManualFontKerningPlacement = Input {
               Value = StyledText {
                  Array = {
                  },
                  Value = ""
               },
            },
            Red1 = Input { Value = 0.07212, },
            Green1 = Input { Value = 0.601, },
            Blue1 = Input { Value = 0.144879963933988, },
         },
         ViewInfo = OperatorInfo { Pos = { 550, 82.5 } },
      },
      Text3D1ExtrusionProfile = LUTBezier {
         KeyColorSplines = {
            [0] = {
               [0] = { 0, RH = { 0.0196116135138184, 0.098058067569092 }, Flags = { Linear = true } },
               [0.2] = { 1, LH = { 0.180388386486182, 0.901941932430908 }, RH = { 0.3, 1 }, Flags = { Linear = true } },
               [0.8] = { 1, LH = { 0.7, 1 }, RH = { 0.819611613513818, 0.901941932430908 }, Flags = { Linear = true } },
               [1] = { 0, LH = { 0.980388386486182, 0.098058067569092 }, Flags = { Linear = true } }
            }
         },
         SplineColor = { Red = 192, Green = 128, Blue = 64 },
         NameSet = true,
      },
      Shape3D1 = Shape3D {
         Inputs = {
            ["Transform3DOp.Rotate.X"] = Input { Value = -90, },
            ["Transform3DOp.Scale.X"] = Input { Value = 10, },
            ["MtlStdInputs.MaterialID"] = Input { Value = 1, },
            ["SurfacePlaneInputs.ObjectID.ObjectID"] = Input { Value = 1, }
         },
         ViewInfo = OperatorInfo { Pos = { 550, 280.5 } },
      },
      Merge3D1 = Merge3D {
         Inputs = {
            PassThroughLights = Input { Value = 1, },
            SceneInput1 = Input {
               SourceOp = "Text3D1",
               Source = "Output",
            },
            SceneInput2 = Input {
               SourceOp = "SpotLight1",
               Source = "Output",
            },
            SceneInput4 = Input {
               SourceOp = "Camera3D1",
               Source = "Output",
            },
         },
         ViewInfo = OperatorInfo { Pos = { 770, 148.5 } },
      },
      Camera3D1 = Camera3D {
         Inputs = {
            ["Transform3DOp.Translate.X"] = Input { Value = 2.83718105942117, },
            ["Transform3DOp.Translate.Y"] = Input { Value = 0.869594159043769, },
            ["Transform3DOp.Translate.Z"] = Input { Value = 0.477893517492261, },
            ["Transform3DOp.Rotate.X"] = Input { Value = -17.3999977111816, },
            ["Transform3DOp.Rotate.Y"] = Input { Value = 77.2000045776367, },
            FLength = Input { Value = 18.2123442718302, },
            ["Stereo.Mode"] = Input { Value = FuID { "Mono" }, },
            FilmGate = Input { Value = FuID { "BMD_URSA_4K_16x9" }, },
            ["SurfacePlaneInputs.ObjectID.ObjectID"] = Input { Value = 2, },
            ["MtlStdInputs.MaterialID"] = Input { Value = 3, },
         },
         ViewInfo = OperatorInfo { Pos = { 770, 16.5 } },
      },
      Merge3D1_1 = Merge3D {
         Inputs = {
            PassThroughLights = Input { Value = 1, },
            SceneInput1 = Input {
               SourceOp = "Merge3D1",
               Source = "Output",
            },
            SceneInput2 = Input {
               SourceOp = "Shape3D1",
               Source = "Output",
            },
         },
         ViewInfo = OperatorInfo { Pos = { 935, 148.5 } },
      },
      ReplaceMaterial3D1 = ReplaceMaterial3D {
         Inputs = {
            SceneInput = Input {
               SourceOp = "Merge3D1_1",
               Source = "Output",
            },
            ["MtlStdInputs.Specular.Nest"] = Input { Value = 1, },
            ["MtlStdInputs.Specular.Intensity"] = Input { Value = 0, },
            ["MtlStdInputs.ReceivesLighting"] = Input { Value = 0, },
            ["MtlStdInputs.MaterialID"] = Input { Value = 2, },
         },
         ViewInfo = OperatorInfo { Pos = { 1155, 82.5 } },
      },
      Note2 = Note {
         Inputs = {
            Comments = Input { Value = "replace with solid white, no specular", }
         },
         ViewInfo = StickyNoteInfo {
            Pos = { 1100, -16.5 },
            Flags = {
               Expanded = true
            },
            Size = { 196, 179.3 }
         },
      },
      Renderer3D1 = Renderer3D {
         CustomData = {
            ToolVersion = 2,
         },
         Inputs = {
            GlobalIn = Input { Value = 1001, },
            GlobalOut = Input { Value = 2001, },
            Width = Input { Value = 1920, },
            Height = Input { Value = 1080, },
            ["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2" }, },
            SceneInput = Input {
               SourceOp = "ReplaceMaterial3D1",
               Source = "Output",
            },
            ["RendererSoftware.LightingEnabled"] = Input { Value = 1, },
            ["RendererSoftware.ShadowsEnabled"] = Input { Value = 1, },
            ["RendererOpenGL.LightingEnabled"] = Input { Value = 1, },
            ["RendererOpenGL.ShadowsEnabled"] = Input { Value = 1, },
         },
         ViewInfo = OperatorInfo { Pos = { 1485, 82.5 } },
      },
      Renderer3D1_1 = Renderer3D {
         CustomData = {
            ToolVersion = 2,
         },
         Inputs = {
            ["RendererOpenGL.LightingEnabled"] = Input { Value = 1, },
            ["RendererOpenGL.ShadowsEnabled"] = Input { Value = 1, },
            GlobalIn = Input { Value = 1001, },
            GlobalOut = Input { Value = 2001, },
            Width = Input { Value = 1920, },
            Height = Input { Value = 1080, },
            ["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2" }, },
            SceneInput = Input {
               SourceOp = "Merge3D1",
               Source = "Output",
            },
            ["RendererSoftware.LightingEnabled"] = Input { Value = 1, },
         },
         ViewInfo = OperatorInfo { Pos = { 1485, 346.5 } },
      },
      Note1 = Note {
         Inputs = {
            Comments = Input { Value = "render shadow pass", }
         },
         ViewInfo = StickyNoteInfo {
            Pos = { 1430, -16.5 },
            Flags = {
               Expanded = true
            },
            Size = { 196, 179.3 }
         },
      },
      Note1_1 = Note {
         Inputs = {
            Comments = Input { Value = "render beauty pass", }
         },
         ViewInfo = StickyNoteInfo {
            Pos = { 1430, 280.5 },
            Flags = {
               Expanded = true
            },
            Size = { 196, 179.3 }
         },
      },
      Merge2 = Merge {
         Inputs = {
            Background = Input {
               SourceOp = "Background2",
               Source = "Output",
            },
            Foreground = Input {
               SourceOp = "Renderer3D1",
               Source = "Output",
            },
            PerformDepthMerge = Input { Value = 0, },
         },
         ViewInfo = OperatorInfo { Pos = { 1705, 82.5 } },
      },
      Background2 = Background {
         Inputs = {
            GlobalIn = Input { Value = 1001, },
            GlobalOut = Input { Value = 2001, },
            Width = Input { Value = 1920, },
            Height = Input { Value = 1080, },
            ["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2" }, },
            TopLeftRed = Input { Value = 1, },
            TopLeftGreen = Input { Value = 1, },
            TopLeftBlue = Input { Value = 1, },
         },
         ViewInfo = OperatorInfo { Pos = { 1705, 16.5 } },
      },
      Merge3 = Merge {
         Inputs = {
            Background = Input {
               SourceOp = "Merge1",
               Source = "Output",
            },
            Foreground = Input {
               SourceOp = "Renderer3D1_1",
               Source = "Output",
            },
            PerformDepthMerge = Input { Value = 0, },
         },
         ViewInfo = OperatorInfo { Pos = { 1980, 346.5 } },
      },
      Merge1 = Merge {
         Inputs = {
            Background = Input {
               SourceOp = "Background1",
               Source = "Output",
            },
            Foreground = Input {
               SourceOp = "Merge2",
               Source = "Output",
            },
            ApplyMode = Input { Value = FuID { "Multiply" }, },
            PerformDepthMerge = Input { Value = 0, },
         },
         ViewInfo = OperatorInfo { Pos = { 1980, 82.5 } },
      },
      Background1 = Background {
         Inputs = {
            GlobalIn = Input { Value = 1001, },
            GlobalOut = Input { Value = 2001, },
            Width = Input { Value = 1920, },
            Height = Input { Value = 1080, },
            ["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2" }, },
            Type = Input { Value = FuID { "Corner" }, },
            TopLeftRed = Input { Value = 1, },
            TopRightGreen = Input { Value = 1, },
            BottomLeftBlue = Input { Value = 1, },
         },
         ViewInfo = OperatorInfo { Pos = { 1980, -115.5 } },
      },
      Note3 = Note {
         Inputs = {
            Comments = Input { Value = "multiply shadow over BG", }
         },
         ViewInfo = StickyNoteInfo {
            Pos = { 2090, 49.5 },
            Flags = {
               Expanded = true
            },
            Size = { 179.029, 94.4472 }
         },
      },
      Note3_1 = Note {
         Inputs = {
            Comments = Input { Value = "merge Text over BG", }
         },
         ViewInfo = StickyNoteInfo {
            Pos = { 2090, 313.5 },
            Flags = {
               Expanded = true
            },
            Size = { 179.029, 94.4472 }
         },
      }
   }
}


You can split the flow at any point. In this case, the Text, lighting, and camera are common to both streams and can be easily animated without concern over losing registration with the other render, but the background plane is only in one of them, and the material assignment is happening after animation.