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本视频教程是由cmiVFX机构出品的Houdini中L-System基础使用视频教程，cmiVFX Houdini L-System Essentials 1 & 2，大小：1.86 GB，MP4高清视频格式，教程使用软件：Mudbox，作者：david gary，官方发布日期：2009年11月19日，语言：英语。
在视频一中，我们向您介绍了什么是 L-systems，如何构建结构较好的树木、植被和花草的模型。而在这第二部视频教程中我们会向你展示植被渲染的工作流程。
祥细阐述了组合两类技术的一种方法:用L-systems和遗传算法(GA)获取一种改写表达式描述叶子形状.一个L-systems用于构造给定改写表达式,而GA是用于改写表达式的适应参数.介绍了用目标函数实现实值参数替换方法,研究结果表明提出的方法产生可以接受的输出效果.
cmiVFX Houdini L-System Essentials 1 & 2
Upon general request,this is the first video ever released about this immense and yet not well-known field of computer graphics. L-systems are a very useful language for describing fractal looking objects and branching structures. It’s mainly used in environmental design, both artistic and scientific, to create realistic plants and trees and to simulate complex botanical animated phenomena. It has been used in special effects in a great variety of films to create anatomical patterns such as neurons in Fight Club or vessels in Hollow-Man 2.In these videos, we want to unleash the power of the l-systems by showing you the maximum of different things you can make with them:From the large topic of plant and tree modeling to tentacle animation, wire DOPs, lightning effects, complex crack generation, snowflakes, corals, L-system based surfaces, city pattern creation, blood flow through bronchus, making L-systems more scriptable and much more ( generalized recursive modeling). For plants, instead of showing you in full detail how to model an orchid and let you find your way alone to model a tulip or liliac we took another smooth but yet very in-depth and comprehensive approach where you will learn ALL the techniques and acquire methodology to model ANY plant or tree through complete key examples. |
