Artwork guide: Motion Images
Not all sequences are candidates for animation. The lenticular lens will render the image sequence unsharp if the range of motion exceeds the lens tolerance. For this reason it is recommended that one avoids movements which track excessively across the print, regardless of whether the path is straight, sinusoidal, or otherwise.
As a general rule: as the degree of movement increases laterally, sharpness decreases.
The aim is to maintain the key subject in the same relative position in all frames. In the case of using video footage, one must re-register the individual frames to somewhat superimpose the key subject, which unfortunately necessitates cropping the picture area and limits the amount of enlargement that can be performed before pixelation becomes visibly apparent.
The optimum motion effect in terms of clarity and extent of movement is one in which the subject is coming at you from a slight angle.
Looping motion, such as walking, running, somersaulting, etc. gives the impression of continuous motion and works well when the action is confined to a segment of the print.
The main point to bear in mind is: as the degree of enlargement of the action in the lenticular piece increases, so too does the motion, since the higher the magnification the greater the motion.
Sources of Footage
Computer generated artwork
35mm movie film
Digital motion pictures
Video: Beta-S or Beta-SP
Digital: some HD
Keep in mind the degree of magnification required from the digitized file resolution of the source material to the resolution required for lenticular reproduction.
File Set Up:
Create a Photoshop CMYK layered file containing each of the animation frames or provide individual TIFF files (include any alpha channels and layer masks). In the latter case, please ensure that each file is of the same pixel dimensions and colour space.
Add 3 mm bleed on all 4 sides.
File resolution: 300 ppi @ final print size.
Backside art can be provided as a PDF or InDesign file.
Type and Font Guidelines:
Avoid small and italic type styles as the lens renders them illegible, jagged edged or both.
Hard Copy:
Always provide a colour correct hard copy print of each of your files.
File Delivery:
FTP, CD or DVD.
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