Forum Discussion

WesWhit's avatar
WesWhit
Contributor
2 years ago

Anti-aliasing issues on desktop applications messing with visual testing

Hey, I'm having an issue with intermittent pixel issues on the edges of sections of lines. From the way the pixel changes manifest and the fact that they are almost unnoticeable to the naked eye they are due to anti-aliasing. I have turned off all the anti-aliasing setting I can find, but it still happens 9/10 times. 

has anyone come across this? if so have you been able to sort it without using tolerance?

 

This is a WPF app being run on a physical windows machine.

 

 

 

Checkpoints
Desktop Testing
Test Results
  • rraghvani's avatar
    rraghvani
    Champion Level 3
    2 years ago

    See Regions.Compare, it has a parameter for pixel tolerance. When I compare images, I post warning message if they don't match, which then requires my attention to analyse the images.

  • WesWhit's avatar
    WesWhit
    Contributor
    2 years ago

    thank you rraghvani, Pixel tolerance is my last resort. I'm first trying to sort the anti-aliasing. I have turned off all options in the GPU settings. but it still seems to be happening.

  • rraghvani's avatar
    rraghvani
    Champion Level 3
    2 years ago

    Unless your application uses GPU, it won't have any affect turning anti-aliasing off.