Abstract. This paper proposes a new user interface paradigm for motion capture based animation systems, providing intuitive and efficient ways to visualize the main motion capture concepts and operations. A prototype system was built, implementing the prop
GUIgeneration.TheadvancedGUIobjectsweredesignedandimplementedseparately,andthenaddedtotheFormslibrary.
DuetoOpenGL’srenderingfacilitiesandtothedynamicinterfacecontrolusedinthesystem,areal-timeframerateisachievedduringtheplaybackofanimations(about15frames/secinaSGIIndigo2).TheprototypesystemwasalsotestedintheLinuxandRISC6000platforms,alsowithgoodframerates.
Figure18showsasnapshotofatypicalsystemusage,withanarrangementcontainsomeofthepreviousdescribedwindows(JointCurvesWindow,SkeletonGraphWindow,MotionScratchPad
Window,ConcatenationWindow,andPlaybackandRenderingWindow,).
Figure18:Snapshotoftheprototypesystem.
4Conclusions
Inthispaper,wehaveproposedanewuserinterfaceparadigmformotioncap-turebasedanimationsystems.Aprototypesystemwasbuilt,employingthepresentedinterfaceconceptsandsupportedbyapowerfularchitecturedesignedtoworkwiththemotioncapturemethodology.
Theimplementedsystemhasprovedtobeeasyandintuitivetouse,withpromis-