Research And Implementation On Key Technology Of3D Engine Animation

3D graphics engine have been widely used in graphics systems, virtual reality andgames, a good three-dimensional graphics engine needs good support animation module,animation module, the use of appropriate technology and algorithms to make theanimation smoother and closer to the actual situation.The basic elements of animated3D graphics engine module groups: key frame; eachtrack is a series of animation key frames between the two keyframes using eachinterpolation algorithm to obtain an intermediate frame, the frame number of theintermediate obtained in certain when the frame rate is consistent look animation, theanimation engine to achieve the desired results.Nodes can be divided into three-dimensional animation animation, skeletal animation,vertex animation and numerical animation. The animation is animation and skeletalanimation nodes we often use the paper animated way to achieve this in two ways. Bothplay in the three-dimensional animated graphics engine modules an important role in orderto accomplish the function of these two modules, the need to prepare the correspondinganimation class, and the realization of such animation interpolation method; on theselected interpolation method to compare each advantages and disadvantages of theinterpolation method, and the results are good choice simple interpolation method.For node animation, use Catmull-Rom Spline interpolation method to achieve panand zoom animation node operation, use spherical linear interpolation to achieve nodeanimation rotation operation, these two methods makes node animation more humanedesign and make the movie reaches smoothing; animation node is the principle: thecontrol node by the node is attached to the control entity.For skeletal animation, the first detailed account of the skeletal structure of skeletalanimation, skeletal animation principles and skeletal animation skinning; spherical linear interpolation on the choice of interpolation method, and further optimize skeletalanimation details make skeletal animation looks dead board more in line with thekinematics law.The main contents of this paper is to achieve node animation and skeletal animation,and integration of this feature into a three-dimensional graphics engine (3dEngine) in.