Mesh Model Based 2D Texture Mapping Method Improvement Research And Its Application

With the application field of Virtual reality being more larger and the content being more complex,especially the fast development of network graphic techniques,the requirement of high efficiency texture mapping techniques increased rapiddly.In some field(fitting effect display system)scene don't need to be complex,visual angle of 3D scene don't need to be switch,only the effect of texture mapping in one visual angle should be given by the system.But the speed, reality sense and character of easy to use are paid attention to.According to this situation, through the research on scene design which is based on image and the research on reality sense of 2D texture mapping and aim at the matter in exist algorithm of 2D texture mapping,we put forward a improved method of 2d texture mapping base on the mesh model.For the requirement of lubricity in pseudo-curving surface meshes,we bring forward a improved method of control mesh design.The method make full use of the lubricity character of cubic parametric spline curves.It can represent the slick texture trend with few control point relevantly.In this way,the compute quantity of generating control mesh was reduced greatly,and the mesh can be adjust more expediently.We also present a few application examples of this kind.For inherit the texture trend character of control mesh adequately,we put forward a n foursquare mesh surface dispart algorithm by inserting value. It is an subdivision strategy of 1 to N then N to N*M.This mesh subdivision algorithm which is based on the cubic parametric spline curves division method not only reserve the key points in control mesh,but also generating new model points equably and it was efficiently.The algorithm can generate thick mesh which is C1 sequential fleetly,and the pseudo-curving surface meshes generated by the algorithm has powerful expressive force for the scene character. We also present a few application examples of this kind.Besides,in the interest of settle the problem of Black-White distortion,we also put forward a new algorithm of image synthesis.It can avoid Black-White distortion.This image synthesis algorithm adopting the HSB color space model keep to the human impressions on color.The algorithm avoid complex graphics convertion by using the mothod of image disposeing,so it was efficient and need few compute resource.We also present a few application examples of this kind.