<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Wed, Jun 29, 2016 at 6:10 AM, Doug Hoppes <span dir="ltr"><<a href="mailto:dhoppes@mbfbioscience.com" target="_blank">dhoppes@mbfbioscience.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">
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<p class="MsoNormal">Hey all,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"> Running into a critical issue and not sure where to turn. We’ve been using vtkViewport for a while and never seem to have an issue with them. However, just updated the software and moved to OpenGL2 and now running into
an issue. Some of the viewports seem to be clipped. I can move my objects without a problem in them but, in one case, vtkImageActor, the display is clipped.
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<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"> Is there a particular place I can look at in the code to see what is happening? The vtkViewport code seems to have the correct port size. Where is the display rendering done? I’ve noticed that, if I use a sphere actor
or any general surface actor, there doesn’t seem to be a problem. It only happens when I’m rendering a volume or an image actor.</p></div></div></blockquote><div><br></div><div>Hmm... I haven't seen anything like this. By "clipped", do you mean that the actor/volume is limited to a rectangle that is smaller than the viewport? Is this rectangle always in the upper left corner of the viewport, or is it somewhere else? When you say "rendering a volume", do you mean rendered with a vtkVolume? If so, what volume mapper was used? What version of VTK?</div><div><br></div><div>For OpenGL2 the vtkImageActor rendering is done by Rendering/OpenGL2/vtkOpenGLImageSliceMapper.cxx, which in turn uses vtkTexture and vtkPolyDataMapper.</div><div><br></div><div> - David</div><div> </div></div></div></div>