Fluid animation rendering method based on detail capturing and form correcting

A detailed and fluid technology, applied in animation production, image data processing, instruments, etc., can solve the problems of inapplicable fluid animation, fluid simulation acceleration, etc., and achieve the effect of maintaining fluid animation details, fast simulation speed, and speed increase

Inactive Publication Date: 2013-02-20
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented describes an improved way to render fluids that look like real life by taking detailed pictures from them quickly without any errors caused during simulations. It involves converting complex mathematical equations into simpler ones beforehand, allowing for quicker analysis compared to previous methods. Additionally, it suggests performing specific operations such as removing unwanted parts afterward instead of just adding new data points afterwards when needed. Overall, this technology improves the accuracy and effectiveness of simulating fluids over long periods of time.

Problems solved by technology

Technological Problem addressed in this patented technical problem relating to improving liquid display simulations through fluid motion analysis techniques like streaming or droplet impact can be related to various aspects involved in the development of new materials called hydrocresisites, specifically those made of cerium oxide crystals. These compositional structures have been studied intensively over decades ago, leading to increasingly fast response times compared to existing models. Additionally, they require longer computation times than previous solutions, further complicating their design processes. Therefore, the challenge lies in achieving efficient acceleration performance while maintaining high efficiency in fluid animation simulations without compromising certain key characteristics associated with each component being evaluated.

Method used

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  • Fluid animation rendering method based on detail capturing and form correcting
  • Fluid animation rendering method based on detail capturing and form correcting

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Embodiment 1

[0042] In this embodiment, a fluid animation scene in which smoke rises is used. The scene is surrounded by obstacles, and the smoke rises continuously from the round hole at the bottom of the scene. A ball is encountered in the process of ascending, and a large number of fluid details are generated near the ball, resulting in a very gorgeous fluid animation effect. This embodiment uses a traditional fluid simulation framework for illustration.

[0043] Such as figure 1 As shown, this embodiment includes the following steps:

[0044] Step 1. According to the above scene settings, divide the entire scene space into 128*256*128 grids, set the initial velocity field of the fluid simulation to 0, set the initial density field to 1 near the scene hole, and the initial temperature field to is 310, set the boundary conditions according to the scene requirements, that is, generate an identifier array obstacle, set it to true in the grid occupied by the sphere, set the time step to Δt...

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Abstract

The invention discloses a fluid animation rendering method based on detail capturing and form correcting in the technical field of computer image processing. The method comprises the following steps of: performing fluid simulation and optimizing a speed field in an initial scene according to a Navier-Stokes equation; updating a corresponding density field and a corresponding temperature field according to the optimized high-precision speed field by adopting a semi-Lagrangian method so as to be used for rendering and next-frame simulating; and finally, rendering an updated density field into a fluid animation. More colorful details can be captured through a high-speed discrete sine transform operator, the calculation scale of a part with highest time consumption in an original simulation method can be reduced through using a down-sampling or octree method, simultaneously the result is corrected, and the functions of increasing the simulation speed and keeping fluid simulation details are realized. Compared with the prior art, according to the method, the simulation speed is relatively high, and the fluid simulation details with high more accuracy can be acquired.

Description

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Claims

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Application Information

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Owner SHANGHAI JIAO TONG UNIV
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