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MAYA Particle and Fluid Special Effect

Author: MaoHui
Tutor: XiaoShuangJiu；HuangBin
School: Shanghai Jiaotong University
Course: Software Engineering
Keywords: Maya Particle Fluid Navier - Stokes equations Mel Combination of analog
CLC: TP317.4
Type: Master's thesis
Year: 2009
Downloads: 392
Quote: 5
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Abstract

In digital animation, film special effects production applications, the particle and fluid animation effects used two methods, has also been a hot field of computer digital media arts applications, the ultimate goal is to pursue realistic graphics and animation. Maya 3D animation software to produce actual effects scene, particle animation relative to the physics-based fluid animation easier to control, so the more general use. From a realistic point of view, if combined with the volume of fluid material performance is to achieve a good balance on the effects of realism and handling, we first study the Maya particle and fluid effects processing, and then explore the connect the advantages of both a viable solution, and achieved good results. The focus of this study and the main results are: 1. Study the use of particles and Mel expression combined with simulation of real physical phenomena in nature summarizes the strengths and weaknesses of the Maya particle dynamics, the maximum realization of particles can be controlled, not simply rely on the particle emitter to emit particles, not simply in handy to interfere with the particles, but the particle system with Mel expression. In case of tornado production, control the shape of the tornado column expression to control the trajectory of the particles in the column on the last map sequence to render a tornado smoke effects, can be controlled to achieve both tornado shape distorted form, and can control a tornado particle texture trend. (2) can significantly affect the fluid effect the main attributes and summarized fluid simulation Categories and association studies Maya fluid dynamics operator, including the principles of mechanics of the Navier-Stokes equations and explore the Navier-Stokes equations in the Maya built-in program package the key points in how to reflect Maya's fluid dynamics raster attribute. And summarizes the performance attributes defined by the control volume of fluid material. Through case illustration can significantly affect the main properties of the fluid effects and the interaction between the association reaction speed, temperature, density and fluid simulation classification and properties. However, this attribute defines the generally difficult Fluid Effects animation can be substantial control, so in complex simulations instance need further solutions. 3. Proposed and implemented a combination of particles and fluid simulation, control and fluid performance of both particles according to the current situation of the particle simulation and fluid simulation, the aforementioned particle simulation case try to particles and fluid composition manner to simulate the effects: Particle expression field to simulate the dynamic of the tornado, the performance of the texture of a tornado, and by Particle Info node and the expression for data exchange between the particles and the fluid using a fluid material, both to maintain particle and expressions can be manipulated, but also fight for the volume of fluid material effect on the performance. (4) The method uses node all kinds of properties of fluid and particle interaction, enhance the quality of the rendering, the most commonly used dynamic effects of the simulation of heavy soot particle system introduced fluid material to draw fluid sampling, fluid solver range of container after the introduction of the particle, the fluid container is replaced became particle Could sphere. Fluid is usually only responsible for generating the volume without generating dynamic, but in the actual production process, dynamic and material are often associated. Therefore use Maya Particle info node types of fluid and particle properties interact better simulation results. This method can be used in dust explosion rocket tail smoke, dust building collapsed it comes to heavy smoke effects simulation.

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