Hi!
I've been doing some experiments with accessing the RGBA data and Z
buffer from the rendering window in ParaView. What I noticed is that the
Z buffer is not available, when the rendering is done on the server. Is
there any way to retrieve it?
Here is a script I've been using. When the RemoteRenderThreshold is set
to 0 I only see 2D elements (e.g. color map legend) in the outz.tiff
file. When set to some bigger value to make it render locally, all the
objects are seen in outz.tiff.
------------------------------------------
import sys
from paraview.simple import *
from paraview.vtk import *
from vtkIOPython import *
from vtkRenderingPython import *
Connect("beech")
servermanager.LoadState(sys.argv[1])
SetActiveView(GetRenderView())
view = GetRenderView()
window = view.GetRenderWindow()
view.RemoteRenderThreshold = 0
renderer = view.GetRenderer()
w2i = vtkWindowToImageFilter()
w2i.SetInputBufferTypeToRGBA()
w2i.SetInput(window)
zw2i = vtkWindowToImageFilter()
zw2i.SetInputBufferTypeToZBuffer()
zw2i.SetInput(window)
writer = vtkTIFFWriter()
writer.SetInputConnection(w2i.GetOutputPort())
writer.SetFileName("/tmp/out.tiff")
zwriter = vtkTIFFWriter()
zwriter.SetInputConnection(zw2i.GetOutputPort())
zwriter.SetFileName("/tmp/outz.tiff")
writer.Write()
zwriter.Write()
--
Piotr Domagalski
Poznan Supercomputing and Networking Center
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