[vtkusers] Transformations

[Alex Benn]

Hi,

Im applying a transformation matrix directly to a vtkActor. Applying scaling & translation works fine, but as soon as I apply a rotation cosine matrix, the object no longer reflects light, suggesting that the normals are not being transformed.

I've played with applying transform filters to the object, but with exactly the same result.

Any ideas anyone?

Thanks in advance for any help,

Alex.


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