Et objekt bevæger sig over skærmen men det “flicker”. Why?
Fænomenet hedder “judder”.
“Although judder has many contributing factors, it is ultimately determined by how fast a scene moves from one side of the screen to the other. The rule of thumb is to pan no faster than a full image width every seven seconds, otherwise judder will become too detrimental. This rule is especially simple and powerful because it applies regardless of camera lens, model or sensor size.”
“The eye is capable of seeing the individual frames when there is very fast motion present with an insufficient frame rate. Conversely if you had an animation of a very slow moving small object you might be able to get away with a very low frame rate before any judder is noticed.
One can help alleviate judder with motion blur…..However these solutions are never going to work as effectively as what Dave suggested – increasing the frame rate or reducing the speed of your animated motion.
-Graham Macfarlane, Creative Cow
The seven second rule:
For any object crossing the width of the frame,it should take 7 seconds or more to be smooth
Det kan både være i en optagelse eller i en AE animation.
og en artikel fra RED: