<div dir="ltr"><div class="markdown-here-wrapper" style="font-family:"Lucida Sans",Cantarell,Verdana,sans-serif;color:rgb(11,83,148)"><p style="margin:0px 0px 1.2em!important">Did you call <code style="font-size:0.95em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(218,218,218);background-color:rgb(232,232,232);border-radius:3px;display:inline">Render</code> on the new render window after adding the renderer and before invoking the renderer method?</p>
<div title="MDH:RGlkIHlvdSBjYWxsIGBSZW5kZXJgIG9uIHRoZSBuZXcgcmVuZGVyIHdpbmRvdyBhZnRlciBhZGRp
bmcgdGhlIHJlbmRlcmVyIGFuZCBiZWZvcmUgaW52b2tpbmcgdGhlIHJlbmRlcmVyIG1ldGhvZD8=" style="height:0;width:0;max-height:0;max-width:0;overflow:hidden;font-size:0em;padding:0;margin:0">​</div></div></div><br><div class="gmail_quote"><div dir="ltr">On Fri, Nov 23, 2018 at 11:35 AM Elvis Stansvik <<a href="mailto:elvis.stansvik@orexplore.com">elvis.stansvik@orexplore.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto">I think a colleague did something like this for an "export image" feature at work where we wanted to control the resolution of the exported inage.<div dir="auto"><br></div><div dir="auto">I can have a look at how he worked around gotchas/crashes, but not until Monday (on my way home).<div dir="auto"><br></div><div dir="auto">I think the window and renderer have mutual references to each other and need to be broken apart in the right order... Something like that..</div></div></div><div dir="auto"><div dir="auto"><div dir="auto"><br></div><div dir="auto">Elvis</div></div></div><br><div class="gmail_quote"><div dir="ltr">Den fre 23 nov. 2018 17:00Matthew Troke <<a href="mailto:matthew.troke@avalonholographics.com" target="_blank">matthew.troke@avalonholographics.com</a>> skrev:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Once a vtkRenderer is attached to a vtkRenderWindow, can it be removed and added to a another vtkRenderWindow temporarily to perform an operation in isolation?</div><div><br></div><div>Here is what I tried:</div><div>- removed renderer from its current window with RemoveRenderer()</div><div>- created a new vtkRenderWindow with vtkNew and added renderer with AddRenderer()</div><div>- I called a method on the renderer (which is my own derived class of vtkOpenGLRenderer); inside this method, I create a new vtkTextureObject using the context from the renderwindow and Create2DFromRaw(). This method fails with an exception in vtkTextureObject::Bind() (Handle is null)</div><div><br></div><div>If I don't remove and add the renderer to another window, I don't get the exception.<br> </div><div><div><br>-- <br><div dir="ltr" class="m_-2485763348453347320m_-4939717794022060328gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><span style="color:rgb(0,0,0)">Matthew Troke</span></div><div><span style="color:rgb(0,0,0)">Software Engineer</span></div><div><img src="http://www.avalonholographics.com/img/logo.png" width="200" height="46"></div><div><span style="color:rgb(0,0,0)">Office: <a href="tel:(709)%20701-0239" value="+17097010239" target="_blank">1-709-701-0239</a></span></div><div><span style="color:rgb(0,0,0)">Email:</span> <a href="mailto:matthew.troke@avalonholographics.com" rel="noreferrer" target="_blank">matthew.troke@avalonholographics.com</a></div></div></div></div></div></div></div></div>

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</blockquote></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div class="inbox-inbox-inbox-inbox-inbox-inbox-inbox-inbox-markdown-here-wrapper" style="font-family:"proza libre",sans-serif;color:rgb(0,56,107)"><h5 id="inbox-inbox-inbox-inbox-inbox-inbox-inbox-inbox-sankhesh-jhaveri" style="margin:1.3em 0px 1em;padding:0px;font-size:1.1em;border-bottom:1px solid rgb(238,238,238);font-weight:bold;color:rgb(11,65,148)">Sankhesh Jhaveri</h5>
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