Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-15 Thread Jeff Becker

On 06/13/2015 08:12 PM, Burlen Loring wrote:
It's hard for me to say, I've never seen the stein mesh package, and 
googling doesn't turn anything up. Perhaps you could share the dataset 
itself? I'm sure someone here could quickly reproduce the issue and 
perhaps suggest a fix.


I'll ask if I can share the data set, but it's half a terabyte in size! 
I only read it in a small part of it for this test, so I suppose I could 
splice that out. The stein mesh package is some python that I wrote to 
import the mesh coordinates. It's simply some data specified as follows:


MX=504
MY=500
MZ=504

xcoords = [
  0.e+00,   9.5238097012042999e-02, 
1.9047619402408600e-01,

#... list of x coordinates
]

ycoords = [
 -5.501192092896e-01,  -5.3477758169174194e-01, 
-5.1964950561523438e-01,

#... list of y coordinates
]

zcoords = [
  0.e+00,   9.5238097012042999e-02, 
1.9047619402408600e-01,

#... list of z coordinates
]

Hopefully, that is enough to give you the information you need. Thanks.

-jeff


On 6/12/2015 3:27 PM, Jeff Becker wrote:

On 06/11/2015 01:05 PM, Burlen Loring wrote:

you ran out of memory.

You may need more than 1 node, and a parallel file format.

You mentioned that you had a grid of 500 x 500 points. You could 
save a lot of memory by using vtkImageData, vtkRectilinearMesh or 
vtkStructuredGrid if your data is amenable to one of those.


I switched to using vtkStructuredGrid. However, after reading the 
file in ParaView, and attempting to volume render I get the seg. 
fault in pvserver below. I am creating my grid in python as follows 
(steinmesh contains the grid coordinates):



import os
import numpy as np
import steinmesh as mesh
import itertools
import vtk
from vtk.util import numpy_support

in_fname='/nobackupp9/pmoran/stein/mhd48-1/dat/mhd48h1new_670.8.dat'
out_fname='/nobackup/jcbecker/steinBmag.vts'
f = open(in_fname,rb)
bx = 6
npoints = mesh.MX*mesh.MY*mesh.MZ
f.seek(bx*npoints*np.dtype('f4').itemsize,os.SEEK_SET)

steinbmag = np.square(np.fromfile(f,dtype=np.dtype('f4'),count=npoints))
steinbmag += np.square(np.fromfile(f,dtype=np.dtype('f4'),count=npoints))
steinbmag += np.square(np.fromfile(f,dtype=np.dtype('f4'),count=npoints))
steinbmag = np.sqrt(steinbmag)

f.close()

grid = [x for x in itertools.product(mesh.xcoords, mesh.ycoords, 
mesh.zcoords)]


pcoords = vtk.vtkDoubleArray()
pcoords.SetNumberOfComponents(3)
pcoords.SetNumberOfTuples(npoints)
for i in range(npoints):
   pcoords.SetTuple3(*((i,) + grid[i]))
pts = vtk.vtkPoints()
pts.SetData(pcoords)

sgrid = vtk.vtkStructuredGrid()
sgrid.SetDimensions(mesh.MX,mesh.MY,mesh.MZ)
sgrid.SetPoints(pts)

bmagV = numpy_support.numpy_to_vtk(steinbmag,deep=True)
bmagV.SetName('B field magnitude')
sgrid.GetPointData().SetScalars(bmagV)

writer = vtk.vtkXMLStructuredGridWriter()
writer.SetFileName(out_fname)
writer.SetInputData(sgrid)
writer.SetDataModeToBinary()
writer.Write()

Can anyone see what's wrong? Thanks.

-jeff


Program received signal SIGSEGV, Segmentation fault.
0x2fb1c327 in vtkDataArrayTemplatelong long::GetValue(long 
long) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkCommonCore-pv4.3.so.1

(gdb) bt
#0  0x2fb1c327 in vtkDataArrayTemplatelong 
long::GetValue(long long)

()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkCommonCore-pv4.3.so.1

#1  0x2e991d71 in vtkCellArray::GetMaxCellSize() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkCommonDataModel-pv4.3.so.1

#2  0x2c44dde9 in vtkCellCenterDepthSort::ComputeCellCenters() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1

#3  0x2c44e593 in vtkCellCenterDepthSort::InitTraversal() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1
#4  0x2aaab82fc2dd in 
vtkOpenGLProjectedTetrahedraMapper::ProjectTetrahedra(vtkRenderer*, 
vtkVolume*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingVolumeOpenGL-pv4.3.so.1
#5  0x2aaab82f7997 in 
vtkOpenGLProjectedTetrahedraMapper::Render(vtkRenderer*, vtkVolume*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingVolumeOpenGL-pv4.3.so.1
#6  0x2c4d0118 in 
vtkVolume::RenderVolumetricGeometry(vtkViewport*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1
#7  0x2c4e1198 in 
vtkLODProp3D::RenderVolumetricGeometry(vtkViewport*)

()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1
#8  0x2aaab4f3a4eb in 
vtkPVLODVolume::RenderVolumetricGeometry(vtkViewport*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkPVVTKExtensionsRendering-pv4.3.so.1

#9  0x2c4b94ee in vtkRenderer::UpdateGeometry() ()
   from 

Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-13 Thread Burlen Loring
It's hard for me to say, I've never seen the stein mesh package, and 
googling doesn't turn anything up. Perhaps you could share the dataset 
itself? I'm sure someone here could quickly reproduce the issue and 
perhaps suggest a fix.


On 6/12/2015 3:27 PM, Jeff Becker wrote:

On 06/11/2015 01:05 PM, Burlen Loring wrote:

you ran out of memory.

You may need more than 1 node, and a parallel file format.

You mentioned that you had a grid of 500 x 500 points. You could save 
a lot of memory by using vtkImageData, vtkRectilinearMesh or 
vtkStructuredGrid if your data is amenable to one of those.


I switched to using vtkStructuredGrid. However, after reading the file 
in ParaView, and attempting to volume render I get the seg. fault in 
pvserver below. I am creating my grid in python as follows (steinmesh 
contains the grid coordinates):



import os
import numpy as np
import steinmesh as mesh
import itertools
import vtk
from vtk.util import numpy_support

in_fname='/nobackupp9/pmoran/stein/mhd48-1/dat/mhd48h1new_670.8.dat'
out_fname='/nobackup/jcbecker/steinBmag.vts'
f = open(in_fname,rb)
bx = 6
npoints = mesh.MX*mesh.MY*mesh.MZ
f.seek(bx*npoints*np.dtype('f4').itemsize,os.SEEK_SET)

steinbmag = np.square(np.fromfile(f,dtype=np.dtype('f4'),count=npoints))
steinbmag += np.square(np.fromfile(f,dtype=np.dtype('f4'),count=npoints))
steinbmag += np.square(np.fromfile(f,dtype=np.dtype('f4'),count=npoints))
steinbmag = np.sqrt(steinbmag)

f.close()

grid = [x for x in itertools.product(mesh.xcoords, mesh.ycoords, 
mesh.zcoords)]


pcoords = vtk.vtkDoubleArray()
pcoords.SetNumberOfComponents(3)
pcoords.SetNumberOfTuples(npoints)
for i in range(npoints):
   pcoords.SetTuple3(*((i,) + grid[i]))
pts = vtk.vtkPoints()
pts.SetData(pcoords)

sgrid = vtk.vtkStructuredGrid()
sgrid.SetDimensions(mesh.MX,mesh.MY,mesh.MZ)
sgrid.SetPoints(pts)

bmagV = numpy_support.numpy_to_vtk(steinbmag,deep=True)
bmagV.SetName('B field magnitude')
sgrid.GetPointData().SetScalars(bmagV)

writer = vtk.vtkXMLStructuredGridWriter()
writer.SetFileName(out_fname)
writer.SetInputData(sgrid)
writer.SetDataModeToBinary()
writer.Write()

Can anyone see what's wrong? Thanks.

-jeff


Program received signal SIGSEGV, Segmentation fault.
0x2fb1c327 in vtkDataArrayTemplatelong long::GetValue(long 
long) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkCommonCore-pv4.3.so.1

(gdb) bt
#0  0x2fb1c327 in vtkDataArrayTemplatelong 
long::GetValue(long long)

()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkCommonCore-pv4.3.so.1

#1  0x2e991d71 in vtkCellArray::GetMaxCellSize() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkCommonDataModel-pv4.3.so.1

#2  0x2c44dde9 in vtkCellCenterDepthSort::ComputeCellCenters() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1

#3  0x2c44e593 in vtkCellCenterDepthSort::InitTraversal() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1
#4  0x2aaab82fc2dd in 
vtkOpenGLProjectedTetrahedraMapper::ProjectTetrahedra(vtkRenderer*, 
vtkVolume*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingVolumeOpenGL-pv4.3.so.1
#5  0x2aaab82f7997 in 
vtkOpenGLProjectedTetrahedraMapper::Render(vtkRenderer*, vtkVolume*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingVolumeOpenGL-pv4.3.so.1
#6  0x2c4d0118 in 
vtkVolume::RenderVolumetricGeometry(vtkViewport*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1
#7  0x2c4e1198 in 
vtkLODProp3D::RenderVolumetricGeometry(vtkViewport*)

()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1
#8  0x2aaab4f3a4eb in 
vtkPVLODVolume::RenderVolumetricGeometry(vtkViewport*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkPVVTKExtensionsRendering-pv4.3.so.1

#9  0x2c4b94ee in vtkRenderer::UpdateGeometry() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1
#10 0x2aaab4f2d751 in vtkPVDefaultPass::Render(vtkRenderState 
const*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkPVVTKExtensionsRendering-pv4.3.so.1

#11 0x2aaaba0d135b in vtkCameraPass::Render(vtkRenderState const*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingOpenGL-pv4.3.so.1

#12 0x2aaaba1436c0 in vtkOpenGLRenderer::DeviceRender() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingOpenGL-pv4.3.so.1

#13 0x2c4bb18d in vtkRenderer::Render() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1

#14 0x2c4b8429 in vtkRendererCollection::Render() 

Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-12 Thread Jeff Becker

On 06/11/2015 01:05 PM, Burlen Loring wrote:

you ran out of memory.

You may need more than 1 node, and a parallel file format.

You mentioned that you had a grid of 500 x 500 points. You could save 
a lot of memory by using vtkImageData, vtkRectilinearMesh or 
vtkStructuredGrid if your data is amenable to one of those.


I switched to using vtkStructuredGrid. However, after reading the file 
in ParaView, and attempting to volume render I get the seg. fault in 
pvserver below. I am creating my grid in python as follows (steinmesh 
contains the grid coordinates):



import os
import numpy as np
import steinmesh as mesh
import itertools
import vtk
from vtk.util import numpy_support

in_fname='/nobackupp9/pmoran/stein/mhd48-1/dat/mhd48h1new_670.8.dat'
out_fname='/nobackup/jcbecker/steinBmag.vts'
f = open(in_fname,rb)
bx = 6
npoints = mesh.MX*mesh.MY*mesh.MZ
f.seek(bx*npoints*np.dtype('f4').itemsize,os.SEEK_SET)

steinbmag = np.square(np.fromfile(f,dtype=np.dtype('f4'),count=npoints))
steinbmag += np.square(np.fromfile(f,dtype=np.dtype('f4'),count=npoints))
steinbmag += np.square(np.fromfile(f,dtype=np.dtype('f4'),count=npoints))
steinbmag = np.sqrt(steinbmag)

f.close()

grid = [x for x in itertools.product(mesh.xcoords, mesh.ycoords, 
mesh.zcoords)]


pcoords = vtk.vtkDoubleArray()
pcoords.SetNumberOfComponents(3)
pcoords.SetNumberOfTuples(npoints)
for i in range(npoints):
   pcoords.SetTuple3(*((i,) + grid[i]))
pts = vtk.vtkPoints()
pts.SetData(pcoords)

sgrid = vtk.vtkStructuredGrid()
sgrid.SetDimensions(mesh.MX,mesh.MY,mesh.MZ)
sgrid.SetPoints(pts)

bmagV = numpy_support.numpy_to_vtk(steinbmag,deep=True)
bmagV.SetName('B field magnitude')
sgrid.GetPointData().SetScalars(bmagV)

writer = vtk.vtkXMLStructuredGridWriter()
writer.SetFileName(out_fname)
writer.SetInputData(sgrid)
writer.SetDataModeToBinary()
writer.Write()

Can anyone see what's wrong? Thanks.

-jeff


Program received signal SIGSEGV, Segmentation fault.
0x2fb1c327 in vtkDataArrayTemplatelong long::GetValue(long 
long) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkCommonCore-pv4.3.so.1

(gdb) bt
#0  0x2fb1c327 in vtkDataArrayTemplatelong long::GetValue(long 
long)

()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkCommonCore-pv4.3.so.1

#1  0x2e991d71 in vtkCellArray::GetMaxCellSize() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkCommonDataModel-pv4.3.so.1

#2  0x2c44dde9 in vtkCellCenterDepthSort::ComputeCellCenters() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1

#3  0x2c44e593 in vtkCellCenterDepthSort::InitTraversal() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1
#4  0x2aaab82fc2dd in 
vtkOpenGLProjectedTetrahedraMapper::ProjectTetrahedra(vtkRenderer*, 
vtkVolume*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingVolumeOpenGL-pv4.3.so.1
#5  0x2aaab82f7997 in 
vtkOpenGLProjectedTetrahedraMapper::Render(vtkRenderer*, vtkVolume*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingVolumeOpenGL-pv4.3.so.1
#6  0x2c4d0118 in 
vtkVolume::RenderVolumetricGeometry(vtkViewport*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1
#7  0x2c4e1198 in 
vtkLODProp3D::RenderVolumetricGeometry(vtkViewport*)

()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1
#8  0x2aaab4f3a4eb in 
vtkPVLODVolume::RenderVolumetricGeometry(vtkViewport*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkPVVTKExtensionsRendering-pv4.3.so.1

#9  0x2c4b94ee in vtkRenderer::UpdateGeometry() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1

#10 0x2aaab4f2d751 in vtkPVDefaultPass::Render(vtkRenderState const*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkPVVTKExtensionsRendering-pv4.3.so.1

#11 0x2aaaba0d135b in vtkCameraPass::Render(vtkRenderState const*) ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingOpenGL-pv4.3.so.1

#12 0x2aaaba1436c0 in vtkOpenGLRenderer::DeviceRender() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingOpenGL-pv4.3.so.1

#13 0x2c4bb18d in vtkRenderer::Render() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1

#14 0x2c4b8429 in vtkRendererCollection::Render() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1

#15 0x2c4c2202 in vtkRenderWindow::DoStereoRender() ()
   from 
/home4/jcbecker/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/libvtkRenderingCore-pv4.3.so.1

#16 

Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-10 Thread Aashish Chaudhary
No, I don't think so. It would be nice if you can try Burlen suggestion to
see if it works for built in datasets / sources.

- Aashish

On Wed, Jun 10, 2015 at 2:49 PM, Jeff Becker jeffrey.c.bec...@nasa.gov
wrote:

 On 06/10/2015 11:46 AM, Burlen Loring wrote:

 Hmm. If Bunyk ray cast doesn't work some thing strange is going on as
 that is a software(non gpu) algorithm and should always work.

 Can you get anything to show up using a small test data? For example
 create a wavelet source and apply a threshold (use default values) to
 convert to unstructured data. If that works maybe something with your input
 data, or size of it.


 It's a 500 by 500 by 500 grid of floats - is that too big?


 On 06/10/2015 11:27 AM, Jeff Becker wrote:

 On 06/10/2015 11:06 AM, Burlen Loring wrote:

 2 things to try: set the remote render threshold to zero, and if that
 doesn't get it to show up, change the mapper to Bunyk ray cast.  One of
 those usually works depending on what the cause of the issue is.


 I have both of those set - no luck. BTW, this is ParaView 4.3.1 on an
 NVIDIA backend. glxinfo shows:

 $ glxinfo | head -30
 name of display: :0.0
 display: :0  screen: 0
 direct rendering: Yes
 server glx vendor string: NVIDIA Corporation
 server glx version string: 1.4
 server glx extensions:
 GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
 GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
 GLX_EXT_swap_control, GLX_EXT_swap_control_tear,
 GLX_EXT_texture_from_pixmap, GLX_EXT_buffer_age,
 GLX_ARB_create_context,
 GLX_ARB_create_context_profile, GLX_EXT_create_context_es_profile,
 GLX_EXT_create_context_es2_profile,
 GLX_ARB_create_context_robustness,
 GLX_NV_delay_before_swap, GLX_EXT_stereo_tree, GLX_ARB_multisample,
 GLX_NV_float_buffer, GLX_ARB_fbconfig_float,
 GLX_EXT_framebuffer_sRGB,
 GLX_NV_multisample_coverage
 client glx vendor string: NVIDIA Corporation
 client glx version string: 1.4
 client glx extensions:
 GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
 GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
 GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig,
 GLX_SGIX_pbuffer,
 GLX_SGI_swap_control, GLX_EXT_swap_control,
 GLX_EXT_swap_control_tear,
 GLX_EXT_buffer_age, GLX_ARB_create_context,
 GLX_ARB_create_context_profile, GLX_NV_float_buffer,
 GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
 GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
 GLX_NV_present_video, GLX_NV_copy_image, GLX_NV_multisample_coverage,
 GLX_NV_video_capture, GLX_EXT_create_context_es_profile,
 GLX_EXT_create_context_es2_profile,
 GLX_ARB_create_context_robustness,
 GLX_NV_delay_before_swap, GLX_EXT_stereo_tree


 On 06/10/2015 11:00 AM, Jeff Becker wrote:

 Hi. I have an unstructured grid file that opens and displays in
 Surface Rendering mode. If I switch to Volume Rendering, I don't see any
 output. Any ideas?

 Thanks.

 -jeff
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Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-10 Thread Burlen Loring
500^3 should not be an issue. Still worth seeing if you can get the test 
data from wavelet source to display as a sanity check. Another thing 
that occasionally occurs, if the there is one or two extremely large 
outlying values in your dataset (say from writing random unitialized 
memory), the default transfer function makes the dataset invisible. 
Would be worth checking the range of your data and experimenting with 
transfer function as well.


On 06/10/2015 12:03 PM, David E DeMarle wrote:
Probably the content isn't amenable to volume rendering. To be so, the 
unstructured grid has to have volumetric cells in it (tets, voxels, 
etc). If it just has polys or lines or points in it, they won't 
appear. You'll have to resample of splat onto the data onto a 
volumetric grid in that case.





David E DeMarle
Kitware, Inc.
RD Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Wed, Jun 10, 2015 at 2:58 PM, Aashish Chaudhary 
aashish.chaudh...@kitware.com mailto:aashish.chaudh...@kitware.com 
wrote:


No, I don't think so. It would be nice if you can try Burlen
suggestion to see if it works for built in datasets / sources.

- Aashish

On Wed, Jun 10, 2015 at 2:49 PM, Jeff Becker
jeffrey.c.bec...@nasa.gov mailto:jeffrey.c.bec...@nasa.gov wrote:

On 06/10/2015 11:46 AM, Burlen Loring wrote:

Hmm. If Bunyk ray cast doesn't work some thing strange is
going on as that is a software(non gpu) algorithm and
should always work.

Can you get anything to show up using a small test data?
For example create a wavelet source and apply a threshold
(use default values) to convert to unstructured data. If
that works maybe something with your input data, or size
of it.


It's a 500 by 500 by 500 grid of floats - is that too big?


On 06/10/2015 11:27 AM, Jeff Becker wrote:

On 06/10/2015 11:06 AM, Burlen Loring wrote:

2 things to try: set the remote render threshold
to zero, and if that doesn't get it to show up,
change the mapper to Bunyk ray cast.  One of those
usually works depending on what the cause of the
issue is.


I have both of those set - no luck. BTW, this is
ParaView 4.3.1 on an NVIDIA backend. glxinfo shows:

$ glxinfo | head -30
name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating,
GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync,
GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_swap_control_tear,
GLX_EXT_texture_from_pixmap, GLX_EXT_buffer_age,
GLX_ARB_create_context,
GLX_ARB_create_context_profile,
GLX_EXT_create_context_es_profile,
GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness,
GLX_NV_delay_before_swap, GLX_EXT_stereo_tree,
GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float,
GLX_EXT_framebuffer_sRGB,
GLX_NV_multisample_coverage
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample,
GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_EXT_import_context,
GLX_SGI_video_sync,
GLX_NV_swap_group, GLX_NV_video_out,
GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGI_swap_control, GLX_EXT_swap_control,
GLX_EXT_swap_control_tear,
GLX_EXT_buffer_age, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_NV_float_buffer,
GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
GLX_NV_present_video, GLX_NV_copy_image,
GLX_NV_multisample_coverage,
GLX_NV_video_capture,
GLX_EXT_create_context_es_profile,
GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness,
GLX_NV_delay_before_swap, GLX_EXT_stereo_tree


On 06/10/2015 11:00 AM, Jeff Becker wrote:

Hi. I have an unstructured grid file that
opens and 

Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-10 Thread Aashish Chaudhary
What version of ParaView you are using? Also, OpenGL or OpenGL2 backend?
Any information on Hardware might be helpful as well.

- aashish

On Wed, Jun 10, 2015 at 2:06 PM, Burlen Loring burlen.lor...@gmail.com
wrote:

 2 things to try: set the remote render threshold to zero, and if that
 doesn't get it to show up, change the mapper to Bunyk ray cast.  One of
 those usually works depending on what the cause of the issue is.


 On 06/10/2015 11:00 AM, Jeff Becker wrote:

 Hi. I have an unstructured grid file that opens and displays in Surface
 Rendering mode. If I switch to Volume Rendering, I don't see any output.
 Any ideas?

 Thanks.

 -jeff
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*| http://www.kitware.com/company/team/chaudhary.html
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Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-10 Thread Jeff Becker

On 06/10/2015 11:06 AM, Burlen Loring wrote:
2 things to try: set the remote render threshold to zero, and if that 
doesn't get it to show up, change the mapper to Bunyk ray cast.  One 
of those usually works depending on what the cause of the issue is.


I have both of those set - no luck. BTW, this is ParaView 4.3.1 on an 
NVIDIA backend. glxinfo shows:


$ glxinfo | head -30
name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_swap_control_tear,
GLX_EXT_texture_from_pixmap, GLX_EXT_buffer_age, 
GLX_ARB_create_context,

GLX_ARB_create_context_profile, GLX_EXT_create_context_es_profile,
GLX_EXT_create_context_es2_profile, GLX_ARB_create_context_robustness,
GLX_NV_delay_before_swap, GLX_EXT_stereo_tree, GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB,
GLX_NV_multisample_coverage
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig, 
GLX_SGIX_pbuffer,

GLX_SGI_swap_control, GLX_EXT_swap_control, GLX_EXT_swap_control_tear,
GLX_EXT_buffer_age, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_NV_float_buffer,
GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
GLX_NV_present_video, GLX_NV_copy_image, GLX_NV_multisample_coverage,
GLX_NV_video_capture, GLX_EXT_create_context_es_profile,
GLX_EXT_create_context_es2_profile, GLX_ARB_create_context_robustness,
GLX_NV_delay_before_swap, GLX_EXT_stereo_tree



On 06/10/2015 11:00 AM, Jeff Becker wrote:
Hi. I have an unstructured grid file that opens and displays in 
Surface Rendering mode. If I switch to Volume Rendering, I don't see 
any output. Any ideas?


Thanks.

-jeff
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Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-10 Thread Jeff Becker

On 06/10/2015 11:46 AM, Burlen Loring wrote:
Hmm. If Bunyk ray cast doesn't work some thing strange is going on as 
that is a software(non gpu) algorithm and should always work.


Can you get anything to show up using a small test data? For example 
create a wavelet source and apply a threshold (use default values) to 
convert to unstructured data. If that works maybe something with your 
input data, or size of it.


It's a 500 by 500 by 500 grid of floats - is that too big?


On 06/10/2015 11:27 AM, Jeff Becker wrote:

On 06/10/2015 11:06 AM, Burlen Loring wrote:
2 things to try: set the remote render threshold to zero, and if 
that doesn't get it to show up, change the mapper to Bunyk ray 
cast.  One of those usually works depending on what the cause of the 
issue is.


I have both of those set - no luck. BTW, this is ParaView 4.3.1 on an 
NVIDIA backend. glxinfo shows:


$ glxinfo | head -30
name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_swap_control_tear,
GLX_EXT_texture_from_pixmap, GLX_EXT_buffer_age, 
GLX_ARB_create_context,

GLX_ARB_create_context_profile, GLX_EXT_create_context_es_profile,
GLX_EXT_create_context_es2_profile, 
GLX_ARB_create_context_robustness,

GLX_NV_delay_before_swap, GLX_EXT_stereo_tree, GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float, 
GLX_EXT_framebuffer_sRGB,

GLX_NV_multisample_coverage
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig, 
GLX_SGIX_pbuffer,
GLX_SGI_swap_control, GLX_EXT_swap_control, 
GLX_EXT_swap_control_tear,

GLX_EXT_buffer_age, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_NV_float_buffer,
GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
GLX_NV_present_video, GLX_NV_copy_image, 
GLX_NV_multisample_coverage,

GLX_NV_video_capture, GLX_EXT_create_context_es_profile,
GLX_EXT_create_context_es2_profile, 
GLX_ARB_create_context_robustness,

GLX_NV_delay_before_swap, GLX_EXT_stereo_tree



On 06/10/2015 11:00 AM, Jeff Becker wrote:
Hi. I have an unstructured grid file that opens and displays in 
Surface Rendering mode. If I switch to Volume Rendering, I don't 
see any output. Any ideas?


Thanks.

-jeff
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Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-10 Thread Burlen Loring
2 things to try: set the remote render threshold to zero, and if that 
doesn't get it to show up, change the mapper to Bunyk ray cast.  One of 
those usually works depending on what the cause of the issue is.


On 06/10/2015 11:00 AM, Jeff Becker wrote:
Hi. I have an unstructured grid file that opens and displays in 
Surface Rendering mode. If I switch to Volume Rendering, I don't see 
any output. Any ideas?


Thanks.

-jeff
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Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-10 Thread Aashish Chaudhary
Can you send the entire output of glxinfo?

- Aashish

On Wed, Jun 10, 2015 at 2:27 PM, Jeff Becker jeffrey.c.bec...@nasa.gov
wrote:

 On 06/10/2015 11:06 AM, Burlen Loring wrote:

 2 things to try: set the remote render threshold to zero, and if that
 doesn't get it to show up, change the mapper to Bunyk ray cast.  One of
 those usually works depending on what the cause of the issue is.


 I have both of those set - no luck. BTW, this is ParaView 4.3.1 on an
 NVIDIA backend. glxinfo shows:

 $ glxinfo | head -30
 name of display: :0.0
 display: :0  screen: 0
 direct rendering: Yes
 server glx vendor string: NVIDIA Corporation
 server glx version string: 1.4
 server glx extensions:
 GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
 GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
 GLX_EXT_swap_control, GLX_EXT_swap_control_tear,
 GLX_EXT_texture_from_pixmap, GLX_EXT_buffer_age,
 GLX_ARB_create_context,
 GLX_ARB_create_context_profile, GLX_EXT_create_context_es_profile,
 GLX_EXT_create_context_es2_profile, GLX_ARB_create_context_robustness,
 GLX_NV_delay_before_swap, GLX_EXT_stereo_tree, GLX_ARB_multisample,
 GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB,
 GLX_NV_multisample_coverage
 client glx vendor string: NVIDIA Corporation
 client glx version string: 1.4
 client glx extensions:
 GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
 GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
 GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig,
 GLX_SGIX_pbuffer,
 GLX_SGI_swap_control, GLX_EXT_swap_control, GLX_EXT_swap_control_tear,
 GLX_EXT_buffer_age, GLX_ARB_create_context,
 GLX_ARB_create_context_profile, GLX_NV_float_buffer,
 GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
 GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
 GLX_NV_present_video, GLX_NV_copy_image, GLX_NV_multisample_coverage,
 GLX_NV_video_capture, GLX_EXT_create_context_es_profile,
 GLX_EXT_create_context_es2_profile, GLX_ARB_create_context_robustness,
 GLX_NV_delay_before_swap, GLX_EXT_stereo_tree



 On 06/10/2015 11:00 AM, Jeff Becker wrote:

 Hi. I have an unstructured grid file that opens and displays in Surface
 Rendering mode. If I switch to Volume Rendering, I don't see any output.
 Any ideas?

 Thanks.

 -jeff
 ___
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 Search the list archives at: http://markmail.org/search/?q=ParaView

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*| http://www.kitware.com/company/team/chaudhary.html
http://www.kitware.com/company/team/chaudhary.html*
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Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-10 Thread Burlen Loring
Hmm. If Bunyk ray cast doesn't work some thing strange is going on as 
that is a software(non gpu) algorithm and should always work.


Can you get anything to show up using a small test data? For example 
create a wavelet source and apply a threshold (use default values) to 
convert to unstructured data. If that works maybe something with your 
input data, or size of it.


On 06/10/2015 11:27 AM, Jeff Becker wrote:

On 06/10/2015 11:06 AM, Burlen Loring wrote:
2 things to try: set the remote render threshold to zero, and if that 
doesn't get it to show up, change the mapper to Bunyk ray cast.  One 
of those usually works depending on what the cause of the issue is.


I have both of those set - no luck. BTW, this is ParaView 4.3.1 on an 
NVIDIA backend. glxinfo shows:


$ glxinfo | head -30
name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_swap_control_tear,
GLX_EXT_texture_from_pixmap, GLX_EXT_buffer_age, 
GLX_ARB_create_context,

GLX_ARB_create_context_profile, GLX_EXT_create_context_es_profile,
GLX_EXT_create_context_es2_profile, 
GLX_ARB_create_context_robustness,

GLX_NV_delay_before_swap, GLX_EXT_stereo_tree, GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float, 
GLX_EXT_framebuffer_sRGB,

GLX_NV_multisample_coverage
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig, 
GLX_SGIX_pbuffer,
GLX_SGI_swap_control, GLX_EXT_swap_control, 
GLX_EXT_swap_control_tear,

GLX_EXT_buffer_age, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_NV_float_buffer,
GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
GLX_NV_present_video, GLX_NV_copy_image, GLX_NV_multisample_coverage,
GLX_NV_video_capture, GLX_EXT_create_context_es_profile,
GLX_EXT_create_context_es2_profile, 
GLX_ARB_create_context_robustness,

GLX_NV_delay_before_swap, GLX_EXT_stereo_tree



On 06/10/2015 11:00 AM, Jeff Becker wrote:
Hi. I have an unstructured grid file that opens and displays in 
Surface Rendering mode. If I switch to Volume Rendering, I don't see 
any output. Any ideas?


Thanks.

-jeff
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Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-10 Thread David E DeMarle
Probably the content isn't amenable to volume rendering. To be so, the
unstructured grid has to have volumetric cells in it (tets, voxels, etc).
If it just has polys or lines or points in it, they won't appear. You'll
have to resample of splat onto the data onto a volumetric grid in that case.




David E DeMarle
Kitware, Inc.
RD Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Wed, Jun 10, 2015 at 2:58 PM, Aashish Chaudhary 
aashish.chaudh...@kitware.com wrote:

 No, I don't think so. It would be nice if you can try Burlen suggestion to
 see if it works for built in datasets / sources.

 - Aashish

 On Wed, Jun 10, 2015 at 2:49 PM, Jeff Becker jeffrey.c.bec...@nasa.gov
 wrote:

 On 06/10/2015 11:46 AM, Burlen Loring wrote:

 Hmm. If Bunyk ray cast doesn't work some thing strange is going on as
 that is a software(non gpu) algorithm and should always work.

 Can you get anything to show up using a small test data? For example
 create a wavelet source and apply a threshold (use default values) to
 convert to unstructured data. If that works maybe something with your input
 data, or size of it.


 It's a 500 by 500 by 500 grid of floats - is that too big?


 On 06/10/2015 11:27 AM, Jeff Becker wrote:

 On 06/10/2015 11:06 AM, Burlen Loring wrote:

 2 things to try: set the remote render threshold to zero, and if that
 doesn't get it to show up, change the mapper to Bunyk ray cast.  One of
 those usually works depending on what the cause of the issue is.


 I have both of those set - no luck. BTW, this is ParaView 4.3.1 on an
 NVIDIA backend. glxinfo shows:

 $ glxinfo | head -30
 name of display: :0.0
 display: :0  screen: 0
 direct rendering: Yes
 server glx vendor string: NVIDIA Corporation
 server glx version string: 1.4
 server glx extensions:
 GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
 GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
 GLX_EXT_swap_control, GLX_EXT_swap_control_tear,
 GLX_EXT_texture_from_pixmap, GLX_EXT_buffer_age,
 GLX_ARB_create_context,
 GLX_ARB_create_context_profile, GLX_EXT_create_context_es_profile,
 GLX_EXT_create_context_es2_profile,
 GLX_ARB_create_context_robustness,
 GLX_NV_delay_before_swap, GLX_EXT_stereo_tree, GLX_ARB_multisample,
 GLX_NV_float_buffer, GLX_ARB_fbconfig_float,
 GLX_EXT_framebuffer_sRGB,
 GLX_NV_multisample_coverage
 client glx vendor string: NVIDIA Corporation
 client glx version string: 1.4
 client glx extensions:
 GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
 GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
 GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig,
 GLX_SGIX_pbuffer,
 GLX_SGI_swap_control, GLX_EXT_swap_control,
 GLX_EXT_swap_control_tear,
 GLX_EXT_buffer_age, GLX_ARB_create_context,
 GLX_ARB_create_context_profile, GLX_NV_float_buffer,
 GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
 GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
 GLX_NV_present_video, GLX_NV_copy_image,
 GLX_NV_multisample_coverage,
 GLX_NV_video_capture, GLX_EXT_create_context_es_profile,
 GLX_EXT_create_context_es2_profile,
 GLX_ARB_create_context_robustness,
 GLX_NV_delay_before_swap, GLX_EXT_stereo_tree


 On 06/10/2015 11:00 AM, Jeff Becker wrote:

 Hi. I have an unstructured grid file that opens and displays in
 Surface Rendering mode. If I switch to Volume Rendering, I don't see any
 output. Any ideas?

 Thanks.

 -jeff
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 *| Aashish Chaudhary | Technical Leader | Kitware Inc.*
 *| http://www.kitware.com/company/team/chaudhary.html
 http://www.kitware.com/company/team/chaudhary.html*

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Re: [Paraview] Selecting volume rendering causes output to vanish

2015-06-10 Thread Jeff Becker

On 06/10/2015 12:03 PM, David E DeMarle wrote:
Probably the content isn't amenable to volume rendering. To be so, the 
unstructured grid has to have volumetric cells in it (tets, voxels, 
etc). If it just has polys or lines or points in it, they won't 
appear. You'll have to resample of splat onto the data onto a 
volumetric grid in that case.


That's it! I created an unstructured grid of points from a data file 
using VTK. I'll see about resampling to volumetric grid. Thanks.


-jeff





David E DeMarle
Kitware, Inc.
RD Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Wed, Jun 10, 2015 at 2:58 PM, Aashish Chaudhary 
aashish.chaudh...@kitware.com mailto:aashish.chaudh...@kitware.com 
wrote:


No, I don't think so. It would be nice if you can try Burlen
suggestion to see if it works for built in datasets / sources.

- Aashish

On Wed, Jun 10, 2015 at 2:49 PM, Jeff Becker
jeffrey.c.bec...@nasa.gov mailto:jeffrey.c.bec...@nasa.gov wrote:

On 06/10/2015 11:46 AM, Burlen Loring wrote:

Hmm. If Bunyk ray cast doesn't work some thing strange is
going on as that is a software(non gpu) algorithm and
should always work.

Can you get anything to show up using a small test data?
For example create a wavelet source and apply a threshold
(use default values) to convert to unstructured data. If
that works maybe something with your input data, or size
of it.


It's a 500 by 500 by 500 grid of floats - is that too big?


On 06/10/2015 11:27 AM, Jeff Becker wrote:

On 06/10/2015 11:06 AM, Burlen Loring wrote:

2 things to try: set the remote render threshold
to zero, and if that doesn't get it to show up,
change the mapper to Bunyk ray cast.  One of those
usually works depending on what the cause of the
issue is.


I have both of those set - no luck. BTW, this is
ParaView 4.3.1 on an NVIDIA backend. glxinfo shows:

$ glxinfo | head -30
name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating,
GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync,
GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_swap_control_tear,
GLX_EXT_texture_from_pixmap, GLX_EXT_buffer_age,
GLX_ARB_create_context,
GLX_ARB_create_context_profile,
GLX_EXT_create_context_es_profile,
GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness,
GLX_NV_delay_before_swap, GLX_EXT_stereo_tree,
GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float,
GLX_EXT_framebuffer_sRGB,
GLX_NV_multisample_coverage
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample,
GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_EXT_import_context,
GLX_SGI_video_sync,
GLX_NV_swap_group, GLX_NV_video_out,
GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGI_swap_control, GLX_EXT_swap_control,
GLX_EXT_swap_control_tear,
GLX_EXT_buffer_age, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_NV_float_buffer,
GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
GLX_NV_present_video, GLX_NV_copy_image,
GLX_NV_multisample_coverage,
GLX_NV_video_capture,
GLX_EXT_create_context_es_profile,
GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness,
GLX_NV_delay_before_swap, GLX_EXT_stereo_tree


On 06/10/2015 11:00 AM, Jeff Becker wrote:

Hi. I have an unstructured grid file that
opens and displays in Surface Rendering mode.
If I switch to Volume Rendering, I don't see
any output. Any ideas?

Thanks.

-jeff
___