Hi all,<br><br>That's not an answer, but an advise: like last mail from Luis, NEVER use VTK with compiz and other high detail graphic effects enabled. You can get in any sort of very obscure troubles (not only about performance, but crashes, layout problems, rendering problems), and spent a lot of time to nothing. I spent more than two days to discover this, because that I'm posting on the list.<br>
<br>Regards,<br><br>Wagner<br><br><div class="gmail_quote">2009/3/18 Luis Roberto P. Paula <span dir="ltr"><<a href="mailto:luisrpp@gmail.com">luisrpp@gmail.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Are you using it on linux with compiz-fusion or high detail graphic effects enabled?<br><br>It happened to me too until I disable compiz.<br><br>- Luis<br><br><div class="gmail_quote"><div><div></div><div class="h5">On Wed, Mar 18, 2009 at 6:12 PM, John Eke <span dir="ltr"><<a href="mailto:johne@annidis.com" target="_blank">johne@annidis.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div></div><div class="h5">
<div bgcolor="#ffffff" text="#000000">
<small><font face="Verdana">Hi,<br>
<br>
I currently have a Qt dialog with a slider. The valueChanged signal
from this slider is connected to a slot in my QVTKWidget subclass which
performs some Window-Level modifications on a vtkImageActor inside the
renderer.<br>
<br>
In the vtk example (Examples/GUI/Qt/ImageViewer) dragging the mouse
across the image is fast enough. So why does it get ridiculously slow
when I send the commands through a slot? Is there a way I can speed it
up?<br>
<br>
- John E</font></small><br>
</div>
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