Download
1 / 13
130 likes | 282 Views
Computer Animation. Dr. Aree Ali Mohammed Lecturer 2012-2013 3 rd Stage aree.ali@univsul.net. Example 1. Find the cubic polynomial or that passes through the four points and satisfies. What is Computer Animation?. Refers to any time sequence of visual changes in a picture
E N D
Computer Animation Dr. Aree Ali Mohammed Lecturer 2012-2013 3rd Stage aree.ali@univsul.net University of Sulaimani - School of Science - Computer Dept.
Example 1. Find the cubic polynomial or that passes through the four points and satisfies What is Computer Animation? Refers to any time sequence of visual changes in a picture Changes: position, size, color, transparency, surface texture, varying camera parameters, or lighting effects Two basic methods to construct a motion sequence Real-time animation: each frame stage of the sequence is viewed as it is created Frame-by-frame animation: each frame of the motion is separately generated and stored University of Sulaimani - School of Science - Computer Dept.
Example 1. Find the cubic polynomial or that passes through the four points and satisfies What is Computer Simulation? What is Animation? Make objects change over time according to scripted actions What is Simulation? Predict how objects change over time according to physical laws University of Sulaimani - School of Science - Computer Dept.
Example 1. Find the cubic polynomial or that passes through the four points and satisfies Outline • Principles of animation • • Keyframe animation • • Articulated figures University of Sulaimani - School of Science - Computer Dept.
Example 1. Find the cubic polynomial or that passes through the four points and satisfies Principles of Traditional Animation Squash and stretch, Slow In and out, Anticipation, Exaggeration, Follow through and overlapping action, Timing, Staging, Straight ahead action and pose-to-pose action, Arcs, Secondary action, Appeal University of Sulaimani - School of Science - Computer Dept.
Example 1. Find the cubic polynomial or that passes through the four points and satisfies Animation Pipeline 3D modeling Motion specification, Motion simulation Shading, lighting, & rendering, Post processing University of Sulaimani - School of Science - Computer Dept.
Example 1. Find the cubic polynomial or that passes through the four points and satisfies Keyframe Animation > Define Character Poses at Specific Time Steps Called “Keyframes” > Interpolate Variables Describing Keyframes to Determine Poses for Character in between University of Sulaimani - School of Science - Computer Dept.
Example 1. Find the cubic polynomial or that passes through the four points and satisfies Interpolation * Linear Interpolation Usually not enough continuity * Spline Interpolation University of Sulaimani - School of Science - Computer Dept.
Example 1. Find the cubic polynomial or that passes through the four points and satisfies Articulated Figures • Character Poses Described by Set of Rigid Bodies Connected by “Joints” • Joints Provide Handles for Moving Articulated Figure University of Sulaimani - School of Science - Computer Dept.
Example 1. Find the cubic polynomial or that passes through the four points and satisfies Motion Capture Motion capture = Motion tracking = Mocap Process of recording movement and translating the movement onto a digital model To animate digital character models in 3D animation Records actions of human actors, and use the information gathered Motion of an actor can be captured with various methods Markers Without Markers (Optical) Mechanical motion Magnetic system Application Military training simulations Video games Films Sports Medical applications University of Sulaimani - School of Science - Computer Dept.
Example 1. Find the cubic polynomial or that passes through the four points and satisfies Motion Capture, Pros and Cons Pros 1. Can replace key-frame based animation with smoother animation with much less efforts 2. Recording various test animations can be performed without much concern 3. Complex, and physically accurate animation Cons 1. Special hardware & software are required 2. Required software, hardware and personnel can be expensive 3. Motions which are not physically correct cannot be or are hard to be captured University of Sulaimani - School of Science - Computer Dept.
Example 1. Find the cubic polynomial or that passes through the four points and satisfies Overview of Kinematics & Dynamics Physical Simulation University of Sulaimani - School of Science - Computer Dept.
