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VirtualDub: Ugly aliasing artifacts when resizing video pane

Posted: Thu Jan 12, 2012 2:05 pm
by ^rooker
[PROBLEM]
When changing size and/or aspect ratio of the video panes (input / output) in VirtualDub, the image might show ugly aliasing artifacts like Jaggies, for example.

[SOLUTION]
This is caused by the resizing algorithm used to display the image.
VirtualDub is able to use OpenGL's filters to resize the image with a better quality.

In order to enable a better resizing algorithm, do the following:
  • Options > Preferences > Main > Display
  • Chech the option "Use OpenGL"
  • Save and exit the dialog
  • Right-click on the video pane to resize
  • Select a suitable resizing algorithm as "Preferred Filter" (Example: In v1.9.11, there are 3 available: Point, Bilinear and Bicubic)