use rectangular texture coordinates, use a render in image to the size of the original image, and use a modulus operator on the texture coords so you only sample even, or odd lines.
On Apr 24, 2013, at 1:17 PM, Nisar Ahmed <nisar....@gmail.com> wrote: > I need help with splitting both fields of an interlaced image into 2 separate > images using GLSL in QC. > > Thanks > Nisar > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/quartzcomposer-dev/doktorp%40mac.com > > This email sent to dokt...@mac.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
