Model processing method, deformation control method and related equipment

Abstract

The invention discloses a model processing method. The model processing method comprises the following steps: taking target energy reaching a preset condition as an iteration target, taking the weightof the target model as a variable, and performing iterative optimization on the weight to obtain the target weight, wherein the weight of the target model is used for indicating the position relationbetween a drawing handle and a vertex in the target model, and the target energy is used for indicating the difference degree between K deformation models obtained after deformation of the target model and a given corresponding expected sample model in a database, and the weight is used for obtaining the K deformation models based on the target model; calculating a deformation result of the target model by utilizing the target weight; and displaying a deformation result of the target model. The embodiment of the invention further provides a corresponding deformation control method and relatedequipment. According to the technical scheme, a data driving method is adopted to iteratively optimize the weight, and the target weight is obtained and used for calculating the deformation result, and a more reasonable deformation result can be generated, and the problem that the deformation result lacks rigidity is solved.

Description

technical field [0001] This application relates to the field of computer technology, in particular to a model processing method, deformation control method and related equipment Background technique [0002] The deformation of 3D models is a hot research direction in the field of geometry processing. At present, the linear blending skinning algorithm (LBS, linear blending skinning) is one of the most commonly used algorithms for completing the deformation of the above-mentioned 3D model. Such as figure 1 As shown, the 3D model of the object is represented by a triangular mesh. When the object deforms, the position of each vertex of the mesh will change accordingly, but the user can usually only specify the deformation or position of a few control points on the model, because the vertices of the triangular mesh The number is usually very large, and it is not advisable to directly specify the deformation of each vertex with a huge workload. The LBS algorithm is an algorithm...

AI Technical Summary

Problems solved by technology

In the paper "Efficient and Flexible Deformation Representation for Data-Driven Surface Modeling" published by Lin Gao et al., considering the fusion of the features of multiple models, a deformation feature of a 3D model is proposed. Interactive data-driven deformation, that is, given a set of models with different deformation states (such as human models in different poses), and then learning the deformation possibility and trend of the model itself from this set of models, so as to solve the above two methods. Deformation results appear too soft

However, in this method, as the number of models in the used model group increases, the time required for deformation will increase, which cannot meet the requirements of real-time interaction.

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