[Paraview] Still Render in PV5.2.0 takes longer time than in PV4.4.0

[张驭洲]

Thank you all!

I'm using Kitware's binaries and 4.4 is with OpenGL 1 and 5.2 is with OpenGL 2. Now that this option has no impact on OpenGL2 backend, is there any other option (besides those mentioned in the User's Guide) that can improve the performance of PV 5.2? In my case, by turning off the display list, the overall performance of PV 4.4 is similar to that of PV 5.2.

-Zhang
-----原始邮件-----
发件人: "Ken Martin" <ken.martin at kitware.com>
发送时间: 2017年1月3日 星期二
收件人: "Utkarsh Ayachit" <utkarsh.ayachit at kitware.com>
抄送: "David E DeMarle" <dave.demarle at kitware.com>, "张驭洲" <yzhzhang at ipe.ac.cn>, "paraview at paraview.org" <paraview at paraview.org>
主题: Re: [Paraview] Still Render in PV5.2.0 takes longer time than in PV4.4.0


For the new OpenGL2 backend setting ImmediateModeRendering or UseDisplayLists or something similar has no impact. Those concepts are part of the legacy OpenGL API. So you should see no difference in timings with them turned on or off with the new OpenGL backend.


On Tue, Jan 3, 2017 at 9:42 AM, Utkarsh Ayachit <utkarsh.ayachit at kitware.com> wrote:
On Tue, Jan 3, 2017 at 9:10 AM, David E DeMarle
<dave.demarle at kitware.com> wrote:
> Is this with OpenGL1 or 2 back end? If you are using Kitware's binaries 4.4
> will be OpenGL1 and 5.2 will be OpenGL2. If you built from source or got it
> from a distro then it might be otherwise.

A way to tell which type of build you're using is to loo at the title
bar. For OpenGL1, the title bar says "Legacy Rendering Backend". Such
a suffix is missing for OpenGL2 build.

Utkarsh
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