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Hi Patrick,<br>
<br>
have you tried to just get rid of the depth peeling ?<br>
(Settings -> Render view tab -> Advanced mode -> Uncheck
the depth peeling box) and set an opacity < 1.0 on the object.<br>
<br>
Cheers,<br>
<br>
Yves<br>
<br>
<div class="moz-cite-prefix">Le 23/07/2015 17:44, Kharche, Sanjay a
écrit :<br>
</div>
<blockquote
cite="mid:DB5PR03MB1062F8ED89F963E50A4CD20C82820@DB5PR03MB1062.eurprd03.prod.outlook.com"
type="cite">
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style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;">
<p><br>
</p>
<p>Dear All</p>
<p><br>
</p>
<p>I found that I can use VNC server (and which is available to
me on my current machine) with the offscreen rendering options
to paraview.</p>
<p><br>
</p>
<p>VNC server seems to be a proprietary software. Are there free
options available?</p>
<p><br>
</p>
<p>cheers</p>
<p>Sanjay</p>
<p><br>
</p>
<br>
<br>
<div style="color: rgb(0, 0, 0);">
<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
color="#000000" face="Calibri, sans-serif"><b>From:</b>
David E DeMarle <a class="moz-txt-link-rfc2396E" href="mailto:dave.demarle@kitware.com"><dave.demarle@kitware.com></a><br>
<b>Sent:</b> 19 July 2015 13:46<br>
<b>To:</b> Kharche, Sanjay<br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:paraview@paraview.org">paraview@paraview.org</a><br>
<b>Subject:</b> Re: [Paraview] non-interactive viz on
cluster</font>
<div> </div>
</div>
<div>
<div dir="ltr"><span style="color:rgb(0,0,0);
font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt">I am not wanting to do the visualisation
using the PBS -X option, which</span><br>
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="ltr">
<div style="font-size:12pt; color:#000000;
background-color:#ffffff;
font-family:Calibri,Arial,Helvetica,sans-serif">
<p>will forward the X11 graphics from the
compute mnodes to my desktop screen.</p>
<p>I want to do it completely non-interactively.</p>
</div>
</div>
</blockquote>
<div><br>
</div>
<div>Agreed. Don't forward X, N compute nodes sending
their graphics calls over the network to your
desktop is much worse than N times slower.</div>
<div><br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="ltr">
<div style="font-size:12pt; color:#000000;
background-color:#ffffff;
font-family:Calibri,Arial,Helvetica,sans-serif">
<p>I could not find any other way of</p>
<p>changing the DISPLAY variable. If there is
one, please suggest.</p>
<p><br>
</p>
</div>
</div>
</blockquote>
<div>I think it is site specific. Talk with your sys
admins about how to submit a job that has access to
X displays on the compute nodes.</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="ltr">
<div style="font-size:12pt; color:#000000;
background-color:#ffffff;
font-family:Calibri,Arial,Helvetica,sans-serif">
<p>In the meantime, I am trying to find out of
the paraview on our cluster is</p>
<p>compiled to use off screen rendering. I will
also try to have a go at using</p>
<p>some precompiled binaries (pvbatch) if I can
find any.</p>
<p><br>
</p>
</div>
</div>
</blockquote>
<div>Sounds like a good backup plan. If that fails,
you can compile paraview for offscreen rendering
yourself and run your own binary.</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="ltr">
<div style="font-size:12pt; color:#000000;
background-color:#ffffff;
font-family:Calibri,Arial,Helvetica,sans-serif">
<p>cheers</p>
<p>Sanjay<br>
</p>
<br>
</div>
</div>
</blockquote>
<div><br>
</div>
<div>good luck!</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex; border-left:1px #ccc solid; padding-left:1ex">
<div dir="ltr">
<div style="font-size:12pt; color:#000000;
background-color:#ffffff;
font-family:Calibri,Arial,Helvetica,sans-serif">
<br>
<div style="color:rgb(26,26,26)">
<hr style="display:inline-block; width:98%">
<div dir="ltr"><font style="font-size:11pt"
color="#000000" face="Calibri, sans-serif"><b>From:</b>
David E DeMarle <<a
moz-do-not-send="true"
href="mailto:dave.demarle@kitware.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:dave.demarle@kitware.com">dave.demarle@kitware.com</a></a>><br>
<b>Sent:</b> 18 July 2015 02:08<br>
<b>To:</b> Kharche, Sanjay<br>
<b>Cc:</b> <a moz-do-not-send="true"
href="mailto:paraview@paraview.org"
target="_blank">paraview@paraview.org</a><br>
<b>Subject:</b> Re: [Paraview]
non-interactive viz on cluster</font>
<div> </div>
</div>
<div>
<div class="h5">
<div><br>
The error message indicates that pv
batch can not connect the xwindows.
<div>If the cluster is configured to run
X for you, ensure that the job has the
correct DISPLAY environment variable. </div>
<div>If not, you should either start X
in the job ("xinit pvbatch" or
something like that) or recompile
paraview to use offscreen rendering.</div>
<div><br>
</div>
<div><br>
On Saturday, July 18, 2015, Kharche,
Sanjay <<a moz-do-not-send="true"
href="mailto:S.R.Kharche@exeter.ac.uk"
target="_blank">S.R.Kharche@exeter.ac.uk</a>>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0pt 0pt 0pt 0.8ex;
border-left:1px solid
rgb(204,204,204); padding-left:1ex">
<br>
Dear All<br>
<br>
I need to non-interactively make png
images of a series of sequentially<br>
numbered vts/vtk files. Since this
is a large amount of data, I would
like<br>
to do this using a cluster. The
cluster has paraview and OpenFoam. I
am not<br>
very familiar with OpenFoam, and
have just started using Paraview in<br>
terms of python scripts. When I
submit the job, I get an error. I
gather<br>
that the error is because there is
always a blank Paraview OpenGL
window<br>
that opens when I use the script
below. Can someone suggest a
solution?<br>
<br>
thanks<br>
Sanjay<br>
<br>
error from the pbs job:<br>
ERROR: In
/home/kitware/Kitware/ParaView-3.10/source/VTK/Rendering/vtkXOpenGLRenderWindow.cxx,
line 541<br>
vtkXOpenGLRenderWindow (0x1ba5ad0):
bad X server connection.
DISPLAY=ERROR: In
/home/kitware/Kitware/ParaView-3.10/source/VTK/Rendering/vtkXOpenGLRenderWindow.cxx,
line 343<br>
vtkXOpenGLRenderWindow (0x1ba5ad0):
bad X server connection. DISPLAY=<br>
<br>
My python script that I created
using the GUI, and then edited for
writing the png is below. I run it
using the<br>
non screen rendering option:<br>
<br>
pvbatch --use-offscreen-rendering
mouse2d.py &<br>
<br>
mouse2d.py is this:<br>
<br>
try: paraview.simple<br>
except: from paraview.simple import
*<br>
paraview.simple._DisableFirstRenderCameraReset()<br>
<br>
# this does not make a difference to
the viz.<br>
# SetActiveView(GetRenderView())<br>
#
GetActiveView().UseOffscreenRenderingForScreenshots
= 1<br>
<br>
# loop through all files.<br>
for i in range (1,3999):<br>
mouse2D_SAN1_vts =
XMLStructuredGridReader(
FileName=['mouse2D_SAN%d.vts' % (i)]
)<br>
mouse2D_SAN1_vts.PointArrayStatus =
['Unnamed0']<br>
RenderView1 =
GetRenderView()<br>
DataRepresentation1 = Show()<br>
DataRepresentation1.EdgeColor =
[0.0, 0.0, 0.5000076295109483]<br>
RenderView1.CenterOfRotation
= [78.0, 58.5, 0.0]<br>
Transform1 = Transform(
Transform="Transform" )<br>
a1_Unnamed0_PVLookupTable =
GetLookupTableForArray( "Unnamed0",
1, NanColor=[0.25, 0.0, 0.0],
RGBPoints=[-0.01, 0.23, 0.299,
0.754, 1.0, 0.706, 0.016, 0.15],
VectorMode='Magnitude',
ColorSpace='Diverging',
LockScalarRange=1 )<br>
a1_Unnamed0_PiecewiseFunction =
CreatePiecewiseFunction()<br>
RenderView1.CameraPosition =
[78.0, 58.5, 376.71107225273664]<br>
RenderView1.CameraFocalPoint
= [78.0, 58.5, 0.0]<br>
RenderView1.CameraClippingRange =
[372.94396153020926,
382.3617383365277]<br>
RenderView1.CameraParallelScale =
97.5<br>
DataRepresentation1.ColorArrayName =
'Unnamed0'<br>
DataRepresentation1.LookupTable =
a1_Unnamed0_PVLookupTable<br>
Transform1.Transform =
"Transform"<br>
DataRepresentation2 = Show()<br>
DataRepresentation2.ColorArrayName =
'Unnamed0'<br>
DataRepresentation2.LookupTable =
a1_Unnamed0_PVLookupTable<br>
DataRepresentation2.EdgeColor =
[0.0, 0.0, 0.5000076295109483]<br>
DataRepresentation1.Visibility = 0<br>
<br>
Transform1.Transform.Scale =
[1.0, -1.0, 0.0]<br>
RenderView1.CenterAxesVisibility = 0<br>
RenderView1.CameraPosition =
[78.0, -58.5, 376.71107225273664]<br>
RenderView1.OrientationAxesVisibility
= 0<br>
RenderView1.CameraFocalPoint
= [78.0, -58.5, 0.0]<br>
RenderView1.CenterOfRotation
= [78.0, -58.5, 0.0]<br>
# Render()<br>
WriteImage("dir_%i.png" %
(i))<br>
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