A particle-based cloth simulation method and device

Abstract

The embodiment of the invention discloses a particle-based cloth simulation method and apparatus. The particle-based cloth simulation method includes the steps: determining the target LOD (Level Of Detail) hierarchy from the prestored LOD hierarchies; according to the processing rules corresponding to the target LOD hierarchy, performing grouping processing on each summit contained in a three dimensional model to obtain a plurality of groups; and determining one physical particle from each group, performing cloth simulation on the physical particle, and after determining the coordinate value of the physical particle, according to the coordinate value and the positional relationship between the physical particle and each summit contained in the corresponding group, calculating the respective coordinate value corresponding to each summit contained in the group. Therefore, the system can perform grouping on the summits automatically according to the processing rules corresponding to the selected LOD hierarchy, thus improving the automation degree of cloth simulation. Besides, the system can select different LOD hierarchies according to different demands to enable cloth simulation to be carried out smoothly on different mobile devices, thus improving the simulation effect.

Description

technical field [0001] The invention relates to the technical field of physical motion simulation, in particular to a particle-based cloth simulation method and device. Background technique [0002] Level of Detail algorithm (Level Of Detail, LOD), this term usually appears in game rendering, which means that models with different levels of fineness are used under different environmental settings. For example, the model accuracy of the distant mountain seen in the game is very low, but as the player approaches it, it will gradually adopt a finer model. LOD usually refers to the accuracy of the model, that is, the number of triangle faces in the model. The more faces, the higher the accuracy of the model, and it will take up more memory. Cloth simulation refers to the physical motion simulation of each vertex on the model based on the existing 3D model. When performing cloth simulation, if the model accuracy is relatively high (that is, the number of vertices is relatively ...

AI Technical Summary

Problems solved by technology

[0004] However, this method usually involves a certain amount of art workload, and usually requires a lot of time for the artist, and in the early stage of operation, it is necessary to manually bind the bones and multiple vertices in the model, resulting in a long consumption in the pre-processing stage. time

In addition, the specific effect of this method is related to the number of bones and skinning, but the number of bones is often limited, resulting in poor simulation effect

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