[vtkusers] 答复: 答复: Volume renderering with OpenVR

[Ken Martin]

Keeping the discussion on list so others can benefit.

You should use OpenGL2 for OpenVR and Qt in VTK. For Qt (5.x)  you should
use the new QVTKOpenGLWidget. You will probably want to turn off the OpenVR
factory cmake setting and manually create the OpenVR
camera/renderwindow/renderer/renderWindowInteractor as the TestDragon test
does.

On Mon, Aug 14, 2017 at 9:56 PM, zhao tianchang <tianchang824 at outlook.com>
wrote:

> I am very happy to solve the problem mentioned above. When I build VTK
> with Qt and OpneVR, I ran into a mistake that Qt uses OpenGL, while OpenVR
> must uses OpenGL2. Can't they be compiled together?
>
> Thanks very much again.
>
>
> ------------------------------
> *发件人:* Ken Martin <ken.martin at kitware.com>
> *发送时间:* 2017年8月4日 6:15
> *收件人:* zhao tianchang
> *主题:* Re: 答复: Volume renderering with OpenVR
>
> Turn off the frame loss warning for now. The real fix requires changes in
> the guts of the Volume Rendering mapper of VTK.
>
> On Thu, Aug 3, 2017 at 10:42 PM, zhao tianchang <tianchang824 at outlook.com>
> wrote:
>
>> Thank you for your reply.
>>
>> I meet the texture2D error and I set renderWindow->setMultiSamples(0) by
>> your guidance. Then, I can see the Volume rendering image. But, the word
>> "frame loss" is in the front of  it. What changes should I do to dispaly it
>> correctly. I found the Paraview displaying the volume rendering image by
>> HTC Vive is perfect, no matter how close I am to the volume rendering image
>> by HTC Vive.
>>
>> Could you give me some advice on how to set changes?
>>
>> Thanks very much.
>>
>>
>> ------------------------------
>> *发件人:* Ken Martin <ken.martin at kitware.com>
>> *发送时间:* 2017年8月3日 5:52
>> *收件人:* tianchang824 at outlook.com
>> *主题:* Re: Volume renderering with OpenVR
>>
>> The Volume rendering needs some changes to work when the viewer is close
>> to the volume. When farther away it should be fine.
>>
>> On Thu, Aug 3, 2017 at 5:11 AM, <tianchang824 at outlook.com> wrote:
>>
>>> Hello Ken:
>>>    I'm sorry to send email to trouble you.
>>>    When I use HTC vive to see the result of volume renderering, it
>>> present "frame loss" and I can see the volume.  The word "frame loss"
>>> presents in he front of the volume. And, the frame rate is very low. But,
>>> when I use Paraview to see the same volume data, it is good. How can I
>>> solve the problem?
>>>   Thanks.
>>>
>>> _____________________________________
>>> Sent from http://vtk.1045678.n5.nabble.com
>>>
>>>
>>
>>
>> --
>> Ken Martin PhD
>> Distinguished Engineer
>> Kitware Inc.
>> 28 Corporate Drive
>> Clifton Park NY 12065
>>
>> 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
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>> 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
> Distinguished Engineer
> Kitware Inc.
> 28 Corporate Drive
> Clifton Park NY 12065
>
> 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
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

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.
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