[Paraview] Selecting volume rendering causes output to vanish

Wed Jun 10 15:03:38 EDT 2015

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.
R&D 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.chaudhary at 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.becker at 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
>>>>>> _______________________________________________
>>>>>> Powered by www.kitware.com
>>>>>>
>>>>>> Visit other Kitware open-source projects at
>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>
>>>>>> Please keep messages on-topic and check the ParaView Wiki at:
>>>>>> http://paraview.org/Wiki/ParaView
>>>>>>
>>>>>> Search the list archives at: http://markmail.org/search/?q=ParaView
>>>>>>
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>>>>>>
>>>>>
>>>>>
>>>>
>>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the ParaView Wiki at:
>> http://paraview.org/Wiki/ParaView
>>
>> Search the list archives at: http://markmail.org/search/?q=ParaView
>>
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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>*
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Search the list archives at: http://markmail.org/search/?q=ParaView
>
> Follow this link to subscribe/unsubscribe:
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>
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