Abstract: A position determination method includes: constructing a mesh model of an elastic object; in response to a deformation triggering operation for the elastic object, determining deformation information of mesh points in the mesh model of the elastic object; where the deformation information includes a deformation position; determining motion trajectories of the mesh points in the mesh model of the elastic object based on deformation positions of the mesh points and an elastic constraint of the mesh model of the elastic object in a state of the volumetric deformation; and mobilizing, based on the motion trajectories of the mesh points in the mesh model of the elastic object, the mesh model of the elastic object for an elastic motion to cause the elastic object to be subjected to the volumetric deformation. The inflation and deflation effect of the elastic object is ensured. A position determination device is further disclosed.

Abstract: An elastic object rendering method and apparatus, a device, and a storage medium are provided. The method comprises: constructing a grid model of an elastic object in response to a deformation trigger operation for the elastic object, first determining the deformation position and speed of an acted point in the grid model of the elastic object under the deformation trigger operation; determining the motion trajectory of each grid point in the grid model of the elastic object according to the deformation position and speed of the acted point, and the elastic constraint of each grid point in the grid model of the elastic object; and finally, according to the motion trajectory of each grid point in the grid model of the elastic object, invoking the grid model of the elastic object to perform elastic motion.