[vtkusers] How to read and render a 3D model (OBJ) with textures?

[agerlach]

Well, I'm going to be able to partially answer your question. I do not know
how to handle MTL files, but I can tell you how to load a texture image and
then map it to the surface you loaded. 

Depending on what the file extension of the texture is use the appropriate
filter to load it (in this case jpeg):
vtkSmartPointer<vtkJPEGReader> jpgReader =
vtkSmartPointer<vtkJPEGReader>::New();
jpgReader->SetFileName(NAME_OF_TEXTURE);
jpgReader->Update();

Then create and set a vtkTexture
vtkSmartPointer<vtkTexture> colorTexture =
vtkSmartPointer<vtkTexture>::New();
colorTexture->SetInputConnection(jpgReader->GetOutputPort());
colorTexture->InterpolateOn();

Then when you set your actor add the following where actor is a vtkActor:
actor->SetTexture(colorTexture);

I hope this helps!



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