Umm... I don't think you need a full physics engine for the stuff you're talking about.
Having a scroll that isn't a 1:1 map to the user's action isn't hard. It's just an extra calculation in the scroll code. I think it's a great idea to have some rate-aiding on scrolling. But I think an actual physics engine is overkill. -Steven On 3/22/07, Florent THIERY <[EMAIL PROTECTED]> wrote:
Hi I know it's not gonna come in the priority list before at least a year (or ever), but if we want to add eye candy & (possibly) useability to the UI (such as smooth realistic list scrolling, as seen in apple's iphone demo on contacts lists), we'll need a physics engine, so that moves & animations aren't all linear. All i found so far is the akamaru lib, needs just GLib: http://people.freedesktop.org/~krh/akamaru.git/ If you want to take a quick look at the code: svn co http://svn.kiba-dock.org/akamaru/ akamaru It's a verlet integration implementation; modelization includes elasticity, friction, gravity, geometrical objects... The only (AFAIK) implementation using this model is kiba-dock, a *fun* app launcher, but we may find another use to it in the future. For instance, it may be useful to gesture recognition (i'm not aware if existing gesture recognition engines measure speed, acceleration, ...). There's an undergoing verlet integration into the e17 project (by rephorm) see http://rephorm.com/news/tag/physics , so we may see some UI physics integration into e17 someday. Such early projects mainly show "rope-like" animations, but maybe the API wil spare some time for different usages. Well, that was just a useless thought, but i'd be happy to know if other people are wondering about improving the user experience regarding physics-model-based UI animation. FLorent _______________________________________________ OpenMoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
_______________________________________________ OpenMoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
