<div dir="ltr">Keeping the discussion on list so others can benefit.<div><br></div><div>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.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 14, 2017 at 9:56 PM, zhao tianchang <span dir="ltr"><<a href="mailto:tianchang824@outlook.com" target="_blank">tianchang824@outlook.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div id="m_8638902576917777640divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif" dir="ltr">
<p>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?</p>
<p>Thanks very much again.</p>
<br>
<br>
<div style="color:rgb(0,0,0)">
<hr style="display:inline-block;width:98%">
<div id="m_8638902576917777640divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>发件人:</b> Ken Martin <<a href="mailto:ken.martin@kitware.com" target="_blank">ken.martin@kitware.com</a>><br>
<b>发送时间:</b> 2017年8月4日 6:15<br>
<b>收件人:</b> zhao tianchang<br>
<b>主题:</b> Re: 答复: Volume renderering with OpenVR</font>
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<div dir="ltr">Turn off the frame loss warning for now. The real fix requires changes in the guts of the Volume Rendering mapper of VTK.</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Aug 3, 2017 at 10:42 PM, zhao tianchang <span dir="ltr">
<<a href="mailto:tianchang824@outlook.com" target="_blank">tianchang824@outlook.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div id="m_8638902576917777640m_-4563540068082244127divtagdefaultwrapper" dir="ltr" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif">
<p>Thank you for your reply.</p>
<p>I meet the texture2D error and I set renderWindow->setMultiSamples(<wbr>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. </p>
<p><span style="font-family:Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size:16px">Could you give me some advice on how to set changes? </span></p>
<p><span style="font-family:Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size:16px">Thanks very much.</span></p>
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<div style="color:rgb(0,0,0)">
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<div id="m_8638902576917777640m_-4563540068082244127divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>发件人:</b> Ken Martin <<a href="mailto:ken.martin@kitware.com" target="_blank">ken.martin@kitware.com</a>><br>
<b>发送时间:</b> 2017年8月3日 5:52<br>
<b>收件人:</b> <a href="mailto:tianchang824@outlook.com" target="_blank">tianchang824@outlook.com</a><br>
<b>主题:</b> Re: Volume renderering with OpenVR</font>
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<div dir="ltr">The Volume rendering needs some changes to work when the viewer is close to the volume. When farther away it should be fine.</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Aug 3, 2017 at 5:11 AM, <span dir="ltr"><<a href="mailto:tianchang824@outlook.com" target="_blank">tianchang824@outlook.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello Ken:<br>
I'm sorry to send email to trouble you.<br>
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?<br>
Thanks.<br>
<br>
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<div>Ken Martin PhD
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Ken Martin PhD<div>Distinguished Engineer<br><span style="font-size:12.8px">Kitware Inc.</span><br></div><div>28 Corporate Drive<br>Clifton Park NY 12065<br><div><br></div><div><span style="font-size:10pt;font-family:Tahoma,sans-serif">This communication,
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