[Paraview] Extraneous lines when saving large screenshots

[Moreland, Kenneth]

At one point, I think it proposed to make the render window bigger than that used for the tiling, and then clip out the part you actually use from the middle of the window, thereby clipping off the boarder pixels where the problem occurs.

-Ken


On 7/27/09 1:23 PM, "Utkarsh Ayachit" <utkarsh.ayachit at kitware.com> wrote:

That's a known issue. It also happens when saving out wireframes. The
problem is that we use glPolygonMode to render a surface as wireframe.
That produces closed polygons at window borders. When saving a large
screenshot, we use tiling to render an image larger than the window
size that introduces artifical window borders and hence those
extraneous lines.

Any OpenGL experts have any idea how to overcome this issue?

Utkarsh

On Mon, Jul 27, 2009 at 3:13 PM, Tim Kostka<kostka at gmail.com> wrote:
> When I try to save a screenshot at a resolution higher than the current
> size, I get extraneous lines added to the object.  The screenshot attached
> is from trying to save a screenshot at 3x the resolution of the onscreen
> window.  I tried this with Paraview 3.4.0 in Windows and Linux and 3.6.1 in
> Windows.  Using "Save animation" produced identical results.  Any ideas?
>
> Thanks,
> Tim Kostka
>
>
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   ****      Kenneth Moreland
    ***      Sandia National Laboratories
***********
*** *** ***  email: kmorel at sandia.gov
**  ***  **  phone: (505) 844-8919
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