[vtk-developers] software rendering

[Kilgus, Thomas]

Hi,

I observed that software rendering of non power of two images (regarding resolution) results in a scaling of the images to the next power of two. You can see an example here:

http://cdash.mitk.org/testDetails.php?test=2749290&build=107877

The input of the shown test is a 5x5 pixel RGB image which seems to be scaled to 8x8 pixel. The renderwindow and the corresponding reference image are 640x480 px. Internally, we use a vtkPolyDataMapper for rendering the texture on a plane.

Did we maybe misuse the corresponding VTK classes or is this a known issue? Is there a reasonable way to correct this behavior in the software rendering modus? Let me know if you need any further information! I already mailed to the users list but didn't get any response.

Regards
Thomas


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/vtk-developers/attachments/20120312/bdf355b4/attachment.html>