[vtkusers] Actor Transparency

[Richard Haney]

Olivier,

Thank you.  I will try this.


>From: Olivier Feys <olivier.feys at gmail.com>
>To: Richard Haney <cosmoh2o at hotmail.com>
>CC: vtkusers at vtk.org
>Subject: Re: [vtkusers] Actor Transparency
>Date: Thu, 05 Oct 2006 09:35:57 +0200
>
>The easiest way for me is to create a scalar field on your grid, set the 
>elements to be seen to a certain value (ex:1), and apply a colormap with 
>alpha =0 for values other than 0.
>
>Olivier
>
>
>Richard Haney wrote:
>>Does anyone know of a quick way to render just part of a vtkActor 
>>transparent?  I have a triangular geometry rendered from a 
>>vtkXMLUnstructuredGridReader and I would like only certain sections of the 
>>total actor to be solid and the rest transparent.
>>
>>Is there a quick and easy way to do this with vtk4.2 ?
>>
>>Thanks in advance for any help/hints.
>>
>>
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>