[Paraview] ParaView unable to adjust object opacity

Mon Jul 3 12:00:48 EDT 2017

Hi Cory,

My NVIDIA card was indeed not being used for rendering. Switching to NVIDIA perfectly solved my problems on ParaView v5.4. Thanks very much for your answer!

Yu

From: ParaView [mailto:paraview-bounces at paraview.org] On Behalf Of Cory Quammen
Sent: Monday, July 3, 2017 9:38 AM
To: Yves Rogez <yves.rogez at univ-grenoble-alpes.fr>
Cc: ParaView <paraview at paraview.org>
Subject: Re: [Paraview] ParaView unable to adjust object opacity

Yu and Yves,

Clearly we need to fix the issue with Intel graphics, but are you sure your NVIDIA card is being used for rendering? You can check in ParaView by going to Help -> About and see which OpenGL Vendor is listed. It should say "NVIDIA Corporation."

If it is not being used for ParaView, you can go to the NVIDIA Control Panel and under Manage 3D Settings, set your "Preferred graphics processor" to "High-performance NVIDIA processor".

HTH,

Cory

On Mon, Jul 3, 2017 at 2:28 AM, Yves Rogez <yves.rogez at univ-grenoble-alpes.fr <mailto:yves.rogez at univ-grenoble-alpes.fr> > wrote:

Hi all,

I've noticed that the black box problem can come from the FXAA enabled in the render settings (I have the same problem with my computer & 5.4) but it does not explain the problem with opacity. (my graphics card is a GeForce GTX770M)

Yves

Le 02/07/2017 à 23:41, Yu Xiang a écrit :

Thanks very much for your reply. My computer has two graphic cards: Intel HD Graphics 4000 and NVIDA NVS 5400M, respectively. I switch to 5.3 and no longer have those two problems. 

Yu

From: David E DeMarle [ <mailto:dave.demarle at kitware.com> mailto:dave.demarle at kitware.com] 
Sent: Sunday, July 2, 2017 7:10 AM
To: Yu Xiang  <mailto:yux1991 at gmail.com> <yux1991 at gmail.com>
Cc:  <mailto:paraview at paraview.org> paraview at paraview.org
Subject: Re: [Paraview] ParaView unable to adjust object opacity

These are most likely caused by a known bug in 5.4.0 with some graphics hardware that we are trying to fix in 5.4.1. Can you let us know what your gpu is? Also try 5.3 and let us know if both problems work there.

Thanks

On Jun 30, 2017 10:51 PM, "Yu Xiang" <yux1991 at gmail.com <mailto:yux1991 at gmail.com> > wrote:

Hi,

I downloaded the ParaView Binary Installers (ParaView-5.4.0-Qt5-OpenGL2-Windows-64bit.exe) from https://www.paraview.org/download/ and installed it on my Thinkpad T430 which is running Windows 10. I was using ParaView for the first time and found two things puzzling:

1.       When I open ParaView, the default window looks like the following. There is a small black square on the bottom left corner in RenderView1 (circled in red). I couldn’t figure out why it showed up there.

2.       Then I opened the first Example Visualization and selected Clip2 under can.ex2. When I tried to adjust the Opacity under Styling in the Properties tab, any value other than 1 will make the object in the RenderView1 window disappear like the following:

I tried other examples, and similar things happened. I couldn’t figure out why.

Does anybody know what might be going on and how I can fix it?

Thanks,

Yu

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-- 
Yves Rogez

IPAG
Institut de Planétologie et d'Astrophysique de Grenoble 
Bat D de Physique - BP. 53 - 38041 Grenoble - FRANCE

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_______________________________________________
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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

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Cory Quammen
Staff R&D Engineer
Kitware, Inc.

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