What is computer animation technology?

Computer animation refers to a series of scene pictures generated by a drawing program, in which the current frame picture is a partial modification of the previous frame picture. Animation is a dynamic art. As animation master John lalas said, motion is the key element of animation. Of course, the motion mentioned here not only refers to the motion of the scene, but also includes the motion, texture and color change of the virtual camera. Motion in computer animation generally refers to the action of changing the picture 1. The concept of key frame animation comes from the traditional cartoon production of Walt)isney Studio in the early days. Skilled animators design key pictures in cartoons, which are called key frames, and then ordinary animators design intermediate frames. In three-dimensional computer animation, the generation of intermediate frames is completed by computers. Interpolation replaces the animator who designs the intermediate frame. All the parameters that affect the picture image can be key frame parameters, such as position, rotation angle, texture and other parameters. Key frame technology is the most basic and widely used method in computer animation. In animation design, animators often need to adjust the trajectory of object movement to observe the effect of object movement. The speed of interaction is a very important factor. Wafc et al. proposed a forward differential search method to improve the interaction speed. Their method is very effective when the accuracy requirement is not very high. In principle, the key frame interpolation problem can be summed up as parameter interpolation. Traditional interpolation methods can be applied to keyframe method, but keyframe interpolation is different from pure mathematical interpolation and has its particularity. In order to solve the problem of time control in interpolation process, Steketee and others put forward the method of double interpolation to control it. The other is motion spline, which is a function of key frame to time. 2. Although rigid animation can also bring dazzling visual effects, it always lacks vitality. A remarkable feature of traditional animation is to give each character personality and render some exaggerated effects with shape deformation. Although many effects of traditional animation are still difficult to achieve with three-dimensional animation, researchers of computer animation have done a lot of excellent work in shape deformation. For an object represented by a polygon, the deformation of the object can be realized by moving the vertices of its polygon. However, there is an inherent connection between the vertices of polygons, and improper movement can easily lead to three-dimensional aliasing problems, such as the original coplanar polygons becoming non-coplanar. Objects represented by parametric surfaces can overcome the above problems well. Moving the control vertex only changes the coefficient of the basis function, and the surface is still smooth, so the object represented by the parametric surface can handle any complex deformation. However, the objects represented by parametric surfaces will also bring the problem of three-dimensional aliasing. Because the distribution of control vertices is generally sparse, the deformation of the object is not necessarily what we expected. For objects composed of multiple surfaces, another limitation of deformation is to maintain continuity between adjacent surfaces. 3. In process animation I and J, process animation refers to the animation of an object controlled by a process. Process animation often involves the deformation of objects, but it is different from the animation of flexible objects discussed above. In the animation of flexible objects, the deformation of objects is arbitrary and can be controlled by animators at will. In process animation, the deformation of objects is based on certain mathematical models or physical laws. Reeves's particle system is an early work of process animation. In his paper published in 1983, he successfully proposed a scene generation system for simulating irregular fuzzy objects. Later, Reeves and Blau developed particle systems. They use the basic unit "VJVJ1Umefininga" to generate entities that change shape over time but remain basically the same, such as grass fluttering in the wind. One of the main concerns of particle system is the function of database amplification, and particle system can also be used to simulate the animation of bubbles and spray produced by wind. Recently, Reed and others successfully simulated lightning in biology with particle system. Many animals, such as birds and fish, move in groups. This kind of movement is both random and regular. In recent years, cloth animation has become an interesting research topic. A special application field of fashion animation is fashion design, which will change the traditional fashion design process and let people see the style of clothes and the shape after trying on them before making them. At present, computer animation has entered the practical stage, and many excellent animation software have emerged in the world. The mature commercial animation software used in graphic workstations mainly includes WAVEFRoNT in the United States and soFT[MAGE and ALIAs in Canada. 3DsTuDIo is used on the microcomputer, and some new research achievements in the field of animation have been quickly applied. Such as particle system, group motion, FFD deformation technology, dynamic model, joint motion, two-dimensional morplfing technology and so on. It can be seen from these excellent software. Because of their respective characteristics and advantages, these animation softwares have a broad market, and they are constantly innovating and gradually improving. Computer animation is a promising research direction because of its rich content, wide range and rapid development. (Continued from page 44) (3) The methods and contents of education and training for employees in the construction industry are not targeted. (4) Without institutional guarantee, learning and training are discontinuous. It is a common phenomenon that technical training lacks normal and powerful% 0 degree guarantee. 4.2 Prospects and Suggestions for Education and Training in the Construction Industry The countermeasures to strengthen the education and training of employees in the construction system are to focus on the development of human resources, the improvement of the skills of front-line employees, the professional technology and highly skilled personnel, and the training of production operators. At the same time, only by vigorously improving the professional qualification certificate system of the construction industry, constantly adjusting and perfecting the professional knowledge structure of the team, and improving the overall quality and competitiveness of the team can we achieve sound and rapid development. (1) It is necessary to strengthen the study of business technical training from the strategic height and development perspective and overcome short-term behavior. (2) adopt incentive mechanism to change the status quo of equal treatment of high and low skills. (3) Understand the relationship between economy, science and technology and education; Clarify the relationship between education and training and the liberation and development of productive forces. (4) Establish the idea of dynamic and sustainable development of human resources, and realize that the adjustment of industrial structure and product structure, as well as the adjustment of employment structure caused by the continuous progress of science and technology, requires that education and training must adapt to it. V. Conclusion The management of construction engineering education and training is not only aimed at front-line construction workers, but also plays a decisive role in management and strategy. Through the re-education and training of employees, we can improve their skills and cultivate the ability of strategic leaders to cope with market changes, so as to improve the comprehensive strength of enterprises and constantly adapt to the increasingly fierce competitive market!