The animated GUI: lessons from Disney - Presentation Transcript
1. The animated GUI Lessons from Disney Kristel Van Ael and Joannes Vandermeulen of Namahn at SIGCHI.be Fall Conference on New Communities 19/10/2009
2. What are the principles of animation? How can animation enhance the user experience?
3. Context Assignment from Atos Worldline: use the full potential of a new 16-bit colour display to create a user-friendly and appealing interface for a new XENTA point-of-sales terminal. Basic interface concept and flows designed by Namahn in 2003, and still standing Now focus on colour, typography, iconography and … animation
4. Why animate? Provide a natural flow Focus attention on the action Provide a sense of bearing Engage and appeal NOT: disrupt or hold back
5. The illusion of motion
6. Frame rate The human eye perceives motion at about 24 fps (frames per second) 20 fps is enough for simple feedback 25 fps is accepted as very decent +30 fps for games
7. Motion blur In the real world, an object leaves an impression of its path in our visual system – a smear.
8. Motion blur A rule of thumb: if an object moves more than half its size between any two frames, motion blur must be added.
9. Instant response Visual response to user actions needs to be without delay 0,1 second is about the limit for having the user feel that the system is reacting instantaneously More complex action may take at most 1,5 seconds
10. 8 Design principles Solid drawing Squash and stretch Arrival and departure Ease-in, ease-out Arcs Follow-through Anticipation Exaggeration
11. “Does your animation have weight, depth and balance?”
12. Solid drawing
13. Solid drawing The creation of objects so they appear to have the potential for movement
14. Solid drawing Avoid static symmetry and twin movements
15. Squash and stretch
16. Squash and stretch defining the rigidity and mass of an object by distorting its shape during an action
17. Squash and stretch Pin dropping in Google Maps on iPhone
18. Arrival and departure
19. Arrival and departure In real live, objects do not appear (enter) or disappear (exit) suddenly Three variations: objects fly in from off-screen, objects grow from a point to their full size objects dissolve onto the screen. Objects exit in the opposite way that they entered
20. Arrival and departure Visibility curve
21. Ease-in, ease-out
22. Ease-in, ease-out Ease-in is a gradual acceleration into a motion from a key position Ease-out is the gradual deceleration out of the motion to a key position In either case this principle refers to the simple fact that objects in the real world do not suddenly start or stop moving
23. Dan Bluth
24. Ease-in, ease-out
25. Ease-in, ease-out
27. Arcs The movement of most natural motion will be described by a slightly circular path or arc of some kind.
29. Follow-through Objects in the real world do not come to sudden stops, all of the object coming to a standstill at once Example: objects coming to a stop will wiggle at the end of their motion, as if reacting to a small spring at the end of their travel Combine with overlapping motion
31. Anticipation Anticipation is a technique to alert the viewer to an upcoming action so it is not missed. Exaggerating in order to give the audience a cue about the main action to follow Examples: Contrary movement just before move Retracting slightly before expanding A character looking off screen in the direction where an important action is about to happen
34. Exaggeration By increasing the salience of certain aspects of the world, the animator gives the audience footholds from which to better interpret the nature of the character, action, or situation Paradoxically, only by exaggeration do cartoons achieve more realism.
35. Credits Producer: Inge De Cock Production Manager: A