Due to the field-based nature of interlace video (Section 2.9, “Interlace and Fields”), motion in the subjects of the video may result in two different pictures. This is a good and bad thing. On the positive side, the playback is smoother. The negative side-effect is that individual frames of video resulting in a "comb" or "venetian blinds" effect leading some viewers to believe the image is blurred or just plain wrong. Applying some image processing effects to interleaved pictures produces disastrous results. Kino offers deinterlace on playback, still frame export, and some video effects. Furthermore, some video effects that involve motion, offer field-based rendering to create interfield motion and make the appearance smoother. For example, scrolling titles appear much smoother with field-based rendering when viewed on an analog television (through IEEE 1394, VCD, or DVD Video exports).