By K. Harada, E. Nakamae (auth.), Prof. Dr. Nadia Magnenat-Thalmann, Prof. Dr. Daniel Thalmann (eds.)

New traits in special effects incorporates a number of learn papers submitted to special effects foreign '88 (COl '88). COl '88 is the reliable Annual convention of the pc portraits Society. in view that 1982, this convention ha~ been held in Tokyo. This 12 months, it truly is occurring in Geneva, Switzerland. In 1989, will probably be held in Leeds, U. ok. , in 1990 in Singapore, in 1991 in U. S. A. and in 1992 in Montreal, Canada. Over a hundred papers have been submitted to CGI '88 and sixty one papers have been chosen via the foreign software Committee. Papers were grouped into 6 chapters. The flrst bankruptcy is devoted to machine Animation since it offers with all issues awarded within the different chapters. numerous animation structures are defined in addition to speciflc topics like 3D personality animation, quaternions and splines. the second one bankruptcy is devoted to papers on photograph Synthesis, il1 specific new shading versions and new algorithms for ray tracing are awarded. bankruptcy three provides numerous algorithms for geometric modeling and new thoughts for the construction and manipulation of curves, surfaces and solids and their functions to CAD. In bankruptcy four, an enormous subject is gifted: the specification of pictures platforms and pictures utilizing l~nguages and user-interfaces. The final chapters are dedicated to functions in sciences, medication, engineering, paintings and business.

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Magnenat-Thalmann and D. Thalmann - "Special Cinematographic Effects with Virtual Movie Camera", IEEE CG&A, Apr 1986, pp 43-50. N. Nagel - "State of Art and Prediction for AI and Robotics", in 'Robotics and AI', Ed. by M. Brady et aI, NATO ASI Series, Vol Fll, 1984, pp 3-45. W. Reynolds - "Computer Animation with Computer Graphics, 16(3), Jul 82, pp 289-296. [SAT084] Hidemaru Sa to - "Standardization of Computer Animation Commands for Computer Animation System", Frontiers in Computer Graphics, Proc.

MOTION SPECIFICATION Introduction There are two main types of animation. One type allows the animator to describe the desired motions. For this type of animation, AVENUE supports 3-D keyframe animation. The user can specify the motions of objects interactively by using an interactive motion generator, called KEYFRAMER (KEY FRAME motion generatoR). Motion is created by interpolation between keyframes. The second type is animation done in conjunction with scientific and engineering simulations. While the motions generated by simulation programs would in some cases produce realistic motions, AVENUE does not currently include a simulation program.

The need for real-time playback capability demands that the interpreter be able to update the screen at the rate of at least 24 times per second in order to produce smooth animation. To meet such stringent performance requirement, minimum work, possibly restricting to only updating of screen, should be carried out during the display phase. All object-oriented processing, such as the execution of message passing statements and methods, checking of asynchronous actions etc, must be resolved before the final display.

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