[vtk-developers] Actor's Transparency using vtkDepthSortPolyData is affecting on speed
quantum_cook at yahoo.com
Sun Apr 24 13:35:04 EDT 2011
Thanks for this. I have tried it. It is not giving good results on the sphere's
example. Also somehow this depth peeling is not working at all on my mesh. I ran
into some more problems using the vtkDepthSortPolyData if used for multiple
polydata seperately. It seems that this apporach works only when we have a
single actor. While my requirement is that i want to be able to change
transparency multiple actors at will also. If i do not append them the result is
not fine and it seems that there are some angles at which the back back actors
are rendering in front. My problem is described earlier as well:
and it seems that no body actually took it seriously and it has become
alimitation in VTK.
Can some one please help me out here ?
If it is not possible in VTK, can any one please suggest, should i not use VTK
and instead use any other graphics library like OSG etc. ?
From: Will Schroeder <will.schroeder at kitware.com>
To: Rashid Tanweer <quantum_cook at yahoo.com>
Cc: vtk-developers at vtk.org
Sent: Sat, April 23, 2011 7:04:23 PM
Subject: Re: [vtk-developers] Actor's Transparency using vtkDepthSortPolyData is
affecting on speed
Check into depth peeling http://www.itk.org/Wiki/VTK/Depth_Peeling
On Sat, Apr 23, 2011 at 9:55 AM, Rashid Tanweer <quantum_cook at yahoo.com> wrote:
>I have some 3 - 4 of actors in my application, i needed to sort them so i can
>adjust their transparency levels at run time. But when i introduced
>vtkDepthSortPolyData it slows down the application interaction a bit. Can anyone
>please let me know that if there's a work around for such behavior. Can it be
>made faster. I want to keep different actors so that i can adjust transparency
>of each of them individually at run time.
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