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<body class='hmmessage'><div style="text-align: left;">That could possibly be a problem if you change the opacity after renWin->Render() . In my MFC program I am just changing the opacity of the actors with a button, using this line....<br><br>actor->GetProperty()->SetOpacity(newOpacity);<br><br>.... and then I have to update the render window after that, otherwise it won't redraw the changes.<br><br><br>Hope that helps. If not then you might want to show a bit of your code so we can have a look.<br><br><br>Regards,<br>Cameron.<br></div><br><div></div><br><br><blockquote><hr id="EC_stopSpelling">Date: Thu, 17 Apr 2008 20:29:34 -0500<br>From: rax20037@gmail.com<br>To: vtkusers@vtk.org<br>Subject: [vtkusers] Newbie, about Opacity<br><br>Hello!<br><br>I changed the code in Cone4 from the Tutorial, to the Actor 2 I set many opacity levels, but the graphics are still fully visble, non transparent. What else I need to do. In a presentation I read that the transparent actors must be the last added, that's why I sete actor 2, but doesn't work :S<br>
Help please<br>
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