Hi, In fact, each time you move the slider knob, the viewer will renew the output image, so I am sure(almost) that the artifacts have nothing to do with your knobs, but the output buffer. Have you set empty memory on the right color channel?
Shoot in the dark, hope this be helpful XL -----Original Message----- From: Stephen Newbold <stephe...@moving-picture.com> Sender: nuke-dev-boun...@support.thefoundry.co.uk Date: Thu, 19 May 2011 18:23:03 To: Nuke plug-in development discussion<nuke-dev@support.thefoundry.co.uk> Reply-To: Nuke plug-in development discussion <nuke-dev@support.thefoundry.co.uk> Subject: Re: [Nuke-dev] Artifacts in drawIop _______________________________________________ Nuke-dev mailing list Nuke-dev@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-dev _______________________________________________ Nuke-dev mailing list Nuke-dev@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-dev