Houdini粒子运动模拟基础核心技能训练视频教程

Houdini粒子运动模拟基础核心技能训练视频教程

本Houdini教程是由灵感素材分享站LGZIYUAN.COM整理的Houdini粒子运动模拟基础核心技能训练视频教程，时长：4小时43分，大小：2 GB，MP4高清视频格式，教程使用软件：Houdini 17.5，附源文件，共12个章节，作者：Robert Thomas，语言：英语。
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Houdini是一个特效方面非常强大的软件。许多电影特效都是由它完成：《指环王》中“甘道夫”放的那些“魔法礼花”，还有“水马”冲垮“戒灵”的场面，后天中的龙卷风等等，a52的汽车广告，反正只要是涉及DD公司制作的好莱坞一线大片，几乎都会有Houdini参与和应用。

Houdini不光只适用于视觉特效的制作，随着HOUDINI适用于各种平台，并且出现了很多的HOUDINI培训教学，HOUDINI开始进入了动态图像设计领域。因为其自身的流程化特性，加上其强大的动力学系统，让HOUDINI在数据可视化方面占有一席重要的地位，让图形设计师能够通过它表达自己的观点。

This introductory level offering aims to get you started with a solid base of the foundations of tool building, showing how to create a complex Houdini file so that it can be run in dozens or even hundreds of shots with minimal effort in a pipeline. The course is primarily focused on a Houdini concept called OTLs, which is a way to build our own nodes out of other nodes. To that end, the course starts by making an object-level node that automatically generates emission geo from any arbitrary camera.
We’ll show how to provide hooks to users so that they can customize parts of the setup, how to create custom viewport handles, and how to improve the setup by finding inefficiencies and fixing them. We’ll use Python to control Houdini on a deep level with the OTL’s HDAModule, as well as looking at how to leverage various specially named scripts to further customize how Houdini treats our new node types.
There’s nothing quite like being given several dozen shots to do and watching your lead’s eyes widen when you have a compelling first version ready for each of them by the next morning. By the end of this course, you’ll be well on your way to creating the kinds of setups that let you do just that.
Robert Thomas studied visual effects at the University of Texas, Dallas, where he took two semesters of Houdini and fell in love. His passion for Houdini and effects work blossomed during an internship with Side Effects, and 6 months later he landed his dream job at Digital Domain working on the Roland Emmerich film 2012. During his 10+ years at Digital Domain, Robby was attracted to tasks where he could build Houdini setups for other artists, and support those artists, solving any technical issues along the way.

CLASS 1: INTRODUCTION TO OTLS
Introducing OTLs, Houdini's answer to copy/pasting large networks dozens or hundreds of times. We'll use this concept to make a tool that automatically creates an emitter based on any arbitrary camera.
CLASS 2: MANAGING OTLS
Now that we've gotten our beaks wet looking at how to create an OTL, we'll dive in and look at how to manage them, including manual installation, copying/renaming, and manual uninstallation.
CLASS 3: BEST PRACTICES
Use our newfound understanding of the power of OTLs to discuss various best practices concerning their creation. We'll contrast the One Big OTL theory against the idea of making several, more modular OTLs, discussing the pros and cons of each. We'll also cover what some of the pitfalls are of using OTLs for beginners and how to avoid them.
CLASS 4: CONVERTING SETUPS TO OTLS
What if we're given a setup and asked to convert it to OTLs? This is what we'll mostly spend the class doing. In this video, I pretend I've never seen the tentacles setup before and cover some techniques for how to read a relatively complex setup. While running through things and trying to understand them, we'll also strategize how to organize the setup to make it easier to convert to OTLs.
CLASS 5: MAKING USING OTLS EASIER
It's a pain to manually install our OTLs every time we launch Houdini. Let's look at how to leverage the HOUDINI_OTLSCAN_PATH environment variable to automate this process. Also introduces the Houdini Command Line Tools app for Windows, and how to use the hconfig -a command to see what environment variables we can set.
CLASS 6: STARTING THE TENTACLES SETUP
Set up the Create Lines OTL, the first OTL in the tentacles setup. For this OTL, we'll cover how to add custom viewport handles to our node, and how to provide a part of the OTL that users are meant to modify so that they don't have to unlock our node in order to do so.
CLASS 7: NAMING CONVENTIONS
There's a better naming convention that SESI provides for OTL type names. We'll explore how it works, and how to leverage it to create our own default node naming convention.
CLASS 8: OUTPUTS
Getting the output of an object-level OTL is something we're doing a lot in this series. In this video, we'll explore how to standardize that using a custom expression function and how to avoid having to deal with hscript too much.
CLASS 9: STICK TO COLLISIONS OTL
Set up Stick to Collisions OTL. With this node, we're concerned with how to display the node's complex operation to the user in such a way that they can easily see the effects of the changes they're making while tweaking the settings on the node's UI. We'll also discuss some strategies for how we can handle multi-parm blocks in a robust fashion.
CLASS 10: SOP-BASED OTL
We'd like our setup OTLs to be able to write each step to disk. Instead of copying nodes around, why not make a SOP-based OTL? While we're at it, we'll look at how to use guide geometry to compare versions, which is a feature that's only available in SOPs.
CLASS 11: CREATING A SELF-EXTRACTING OTL
We've made a bunch of magnificent OTLs, but it's pretty painful to instantiate them into a new shot. For this video, we'll solve this problem handily by making a self-extracting OTL, and look at how to avoid some common pitfalls like making it difficult to modify (since the OTL deletes itself while extracting its contents when you put it down).
CLASS 12: PDG AND HOUDINI TOPS
Introducing PDG and Houdini TOPs, a context that's new to Houdini 17. It's a powerful way to set up dependencies between tasks. We'll use it to robustly render the outputs of each of our OTLs in sequence, making sure that each frame waits for the appropriate parent frame or frames.

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