Lightwave mesh to Fusion ?

Hi,
I made a capsule in Lightwave -> exported it to obj -> imported it into Fusion.
It seems that the resulting mesh in Fusion is not welded. Each poly seems to be on its own.
I also tried fbx export / import but get the same result.

LW-to-Fusion-1.png (101.68 KiB) Viewed 2056 times

LW-to-Fusion-2.png (423.01 KiB) Viewed 2056 times

In the attached images you can see a Fusion build in mesh and the imported one from Lightwave.
Both have a displace node applied which is driven by a noise function.
The build in mesh deformes like I expect it. The LW imported mesh does not. Its polygons just move away from each other.

Does anybody have experience with stuff like this and can tell me, if it is possible at all to get a welded mesh into Fusion?

Many thanks in advance.

P.s. I will ask on the Lightwave forum as well.

In Lightwave, on the used material/shader, make sure you have your shading Smooting set to On, and make sure it is set to something greater than 0.

You could also use the Weld3D tool.

Either way the problem starts in the 3D app/Format not Fusion. If the object has multiple normals per "point" (often described as smoothing groups in 3D apps) then in OpenGL, 3DS and other formats you really have multiple vertices each with its own normal.

Now this works most of the time but when you modify the vertices with regard to their Normals the faces will detach.

Paste this example:

Code: Select all

{
   Tools = ordered() {
      Shape3D1 = Shape3D {
         Inputs = {
            Shape = Input { Value = FuID { "SurfaceSphereInputs", }, },
            ["MtlStdInputs.MaterialID"] = Input { Value = 1, },
            ["SurfacePlaneInputs.ObjectID.ObjectID"] = Input { Value = 1, },
            ["SurfaceSphereInputs.ObjectID.ObjectID"] = Input { Value = 2, },
         },
         ViewInfo = OperatorInfo { Pos = { -165, 247.5, }, },
      },
      Weld3D1 = Weld3D {
         Inputs = {
            SceneInput = Input {
               SourceOp = "Shape3D1",
               Source = "Output",
            },
            WeldMode = Input { Value = 1, },
         },
         ViewInfo = OperatorInfo { Pos = { 55, 247.5, }, },
      },
      Note1 = Note {
         Inputs = {
            Comments = Input { Value = "Seperates each vertex.", },
         },
         ViewInfo = StickyNoteInfo {
            Pos = { 0, 313.5, },
            Flags = {
               Expanded = true,
            },
            Size = { 196, 179.3, },
         },
      },
      Note1_1 = Note {
         Inputs = {
            Comments = Input { Value = "The Displace would not look different as the normals on the seperated vertices are the same.\r\n\r\nBy recalculating them to \"FACETS\" or \"individual Smoothing Groups\" in other terms their normals will differ.", },
         },
         ViewInfo = StickyNoteInfo {
            Pos = { 330, 313.5, },
            Flags = {
               Expanded = true,
            },
            Size = { 196, 179.3, },
         },
      },
      ReplaceNormals3D1 = ReplaceNormals3D {
         CtrlWZoom = false,
         Inputs = {
            SceneInput = Input {
               SourceOp = "Weld3D1",
               Source = "Output",
            },
            ["Normals.SmoothingAngle"] = Input { Value = 2.3478261, },
         },
         ViewInfo = OperatorInfo { Pos = { 385, 247.5, }, },
      },
      Note2 = Note {
         Inputs = {
            Comments = Input { Value = "You may try to set the various steps to passive to better understand the effect.", },
         },
         ViewInfo = StickyNoteInfo {
            Pos = { 605, 313.5, },
            Flags = {
               Expanded = true,
            },
            Size = { 196, 179.3, },
         },
      },
      Displace3D1 = Displace3D {
         Inputs = {
            SceneInput = Input {
               SourceOp = "ReplaceNormals3D1",
               Source = "Output",
            },
            Scale = Input { Value = 1, },
            Input = Input {
               SourceOp = "BrightnessContrast1",
               Source = "Output",
            },
         },
         ViewInfo = OperatorInfo { Pos = { 660, 247.5, }, },
      },
      BrightnessContrast1 = BrightnessContrast {
         Inputs = {
            Brightness = Input { Value = 0.624, },
            Input = Input {
               SourceOp = "Background1",
               Source = "Output",
            },
         },
         ViewInfo = OperatorInfo { Pos = { 660, 148.5, }, },
      },
      Background1 = Background {
         Inputs = {
            Width = Input { Value = 1920, },
            Height = Input { Value = 1080, },
            ["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2", }, },
            Gradient = Input {
               Value = Gradient {
                  Colors = {
                     [0] = { 0, 0, 0, 1, },
                     [1] = { 1, 1, 1, 1, },
                  },
               },
            },
         },
         ViewInfo = OperatorInfo { Pos = { 660, 115.5, }, },
      },
   },
}

Thank you gentlemen,
got it to work.

LW-to-Fusion-3.png (319.44 KiB) Viewed 2001 times