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

[Ken Martin]

For the first render of points your numbers seem reasonable. For subsequent
renders you will find different tradeoffs on the old backend. Display Lists
are typically slower for a first render but faster on subsequent renders.
With them turned off the first render is fast but subsequent renders are
not any faster. Subsequent renders with OpenGL2 should be fairly fast.

On Tue, Jan 3, 2017 at 8:13 PM, 张驭洲 <yzhzhang at ipe.ac.cn> wrote:

>
>
> 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
>> _______________________________________________
>> 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:
>> http://public.kitware.com/mailman/listinfo/paraview
>>
>
>
>
> --
> Ken Martin PhD
> Chairman & CFO
> Kitware Inc.
> 28 Corporate Drive
> Clifton Park NY 12065
> 518 371 3971 <(518)%20371-3971>
>
> This communication, including all attachments, contains confidential and
> legally privileged information, and it is intended only for the use of the
> addressee.  Access to this email by anyone else is unauthorized. If you are
> not the intended recipient, any disclosure, copying, distribution or any
> action taken in reliance on it is prohibited and may be unlawful. If you
> received this communication in error please notify us immediately and
> destroy the original message.  Thank you.
>
>
>
>
>
>


-- 
Ken Martin PhD
Chairman & CFO
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065
518 371 3971

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
destroy the original message.  Thank you.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/paraview/attachments/20170103/017d2772/attachment.html>