Simulating fluid structures

摘要

A system includes a computing device that includes a memory configured to store instructions. The computing device also includes a processor configured to execute the instructions to perform a method that includes defining a simulated fluid object that includes a first portion and a second portion being represented by a signed distance function. The method also includes applying at least one constraint to the first portion of the simulated fluid object to match a velocity of a target. The method also includes applying a collection of calculated forces to the second portion of the simulated fluid object. Also, the method includes rendering the first portion applied with the at least one constraint and the second portion applied with the collection of calculated forces to present the simulated fluid object.

主权项

1. A computer-implemented method comprising:
defining a simulated fluid object that includes a first portion and a second portion, wherein the first portion is located within the second portion and a boundary of the second portion defines an outer surface of the simulated fluid object, the portions being defined by a signed distance function (SDF) so that the first portion is defined as a region of the simulated fluid object in which the SDF is less than or equal to a negative real number and the second portion is defined as a region of the simulated fluid object in which the SDF is both greater than the negative real number and less than or equal to 0; performing a fluid flow simulation that includes the simulated fluid object; during the fluid flow simulation assigning at least one velocity constraint to the first portion of the simulated fluid object to correspond to a velocity of a target shape; applying during the fluid flow simulation at least one of a collection of calculated control forces to the second portion of the simulated fluid object; and rendering results of the fluid flow simulation to generate at least one image of the simulated fluid object.