# vtkAssembly and vtkExporter

**URL:** https://discourse.vtk.org/t/vtkassembly-and-vtkexporter/5679
**Category:** Support
**Created:** [May 1, 2021, 11:13pm UTC](https://discourse.vtk.org/t/vtkassembly-and-vtkexporter/5679 "2021-05-01T23:13:45Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![a-u](https://discourse.vtk.org/user_avatar/discourse.vtk.org/a-u/32/3325_2.png) [@a-u](https://discourse.vtk.org/u/a-u)
#### Post date: [May 1, 2021, 11:13pm UTC](https://discourse.vtk.org/t/vtkassembly-and-vtkexporter/5679/1 "2021-05-01T23:13:45Z")

</div>

I’m trying to export an assembly to e.g. gltf but all the positions and colors are lost. It does render correctly before exporting. Is this to be expected?

```python
import vtk

renderer = vtk.vtkRenderer()
renderWindow = vtk.vtkRenderWindow()
renderWindow.AddRenderer(renderer)

va = cq.occ_impl.assembly.toVTK(assy)
renderer.AddActor(va);

renderWindow.Render()

exporter = vtk.vtkGLTFExporter()
exporter.SetFileName('test.gltf')
exporter.InlineDataOn() # save to single file
exporter.SetSaveNormal(False)
exporter.SetRenderWindow(renderWindow)
exporter.Write()

```

BTW: I’ve found this unanswered post that seems to be related: [https://vtk.org/pipermail/vtkusers/2017-February/097969.html](https://vtk.org/pipermail/vtkusers/2017-February/097969.html) .