[vtkusers] Newbie, about Opacity

[Cameron Burnett]

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....

actor->GetProperty()->SetOpacity(newOpacity);

.... and then I have to update the render window after that, otherwise it won't redraw the changes.


Hope that helps. If not then you might want to show a bit of your code so we can have a look.


Regards,
Cameron.



Date: Thu, 17 Apr 2008 20:29:34 -0500
From: rax20037 at gmail.com
To: vtkusers at vtk.org
Subject: [vtkusers] Newbie, about Opacity

Hello!

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

Help please


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