Import 3D Warehouse models into Maya, cleanup imported models


Ray and Charles Eames Shell Chairs, 1950.

Go to SketchUp 3D Warehouse website, you will need a SketchUp account.
Pick any 3D Model and select Download Model
Select COLLADA File .dae
If there is not an option for .dae, read the file into SketchUp then save to .dae

Unzip the file from your Downloads directory.
(PC Right mouse over file, choose Extract All...)

In Sketchup
File->Export 3D Model...
     Select COLLADA File (*.dae)
     Select Options...
          Uncheck Triangulate all faces (It may work better to triangulate)

If you are importing more than 1 file, follow this procedure for each file individually. The sketchup files will not import together until they are under new groups.

In Maya
Select the Modeling section of Maya, choose from upper left, status line. 

Choose File->Import...option 
     Select Merge into selected namespace and rename incoming objects that match

Find your .dae file

The file might be scaled extra large, you might not see it unless you dolly way out.

Select the parent in the Outliner, (Select a part, use the arrow up key a couple times to select the parent.)
     Scale the model down to .0825 to match Maya coordinates

     Move the model close to 0,0,0

Select all the chair parts using Select by Object Type mode  select_object_type

to separate the parented duplicates from the original group

Reselect all the chair parts using Select by Object Type mode  select_object_type

to form a new parent over the parts

Modify->Center Pivot, and use d and x grid snap to move the pivot to the ground

Move the object to be centered at 0,0,0

You can delete the excess parts, camera and curves, delete the group named SketchUp

Cleanup the Data
Select all the objects
     Select Edit Mesh Merge->option  to cleanup redundant verticies
          Use a very small Threshhold

How to turn off component mode
     Use Right mouse choose Object Mode

Choose Mesh->Cleanup...option
     Select Lamina faces (faces sharing all edges)

The shading may appear to be strange
Select all the objects
Select Mesh Display->Unlock Normals

Create new shaders or turn down the Ambient Color to black on the imported shaders.
If objects appear black, select Mesh Display->Reverse
Select Edit->Delete by Type->History

Make sure there are no duplicate objects.

You may want to use Mesh->Combine and Edit->Delete by Type->History

Delete any extra nodes in the Outliner you do not recognize.


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