Morphing for Pupil Dialation, no Alpha channels. Iris stretches and squashes for realistic movement. Eye comes with two resolutions that toggle on and off in the Modifier panel for close-up and general use. Lo-Res eye has 777 Polygons and Hi-Res has 10,864. Anatomicaly accurate, but no-cutaways for Medical Use. AVI's require the Techsmith Codec (TSCC.EXE)