Зарезервирован [hipflask] Houdini Geometry Essentials 03 Attributes, Variables & Parameters [ENG-RUS]

Houdini Geometry Essentials 03 Attributes, Variables & Parameters
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Автор: Fraser Shiers

Год:

Продолжительность: 4 часа 23 минуты

Язык: Английский

Программное обеспечение: Houdini 18

Спойлер: Оригинальное описание

You learned a tonne of crucial theory in the previous Geometry Essentials courses. In this course we’ll teach you even more, but that’s not all. To help you learn in context, we’ll build a procedural system together, complete with project files to help you along. We’ll put the theory to work, teaching you how you can apply your newfound knowledge to real projects.

By the end of this course, you’ll have a deep understanding of:

• The difference between attributes and variables
• What the deal is with local and global variables
• How to access and reference the bounding box with parameter expressions
• How to use the normal and up attributes for precise control of orientation
• Resampling curves with accuracy using arc and chord length measurement methods
• Using the ray node to project geometry
• Customising tools with spare parameters

This is the third of three courses in the Geometry Essentials Collection, step two on the Houdini Made Easy learning path.

Course Syllabus
Section 01
Local & Global Variables
Computer programming uses variables all over the place, and so does Houdini. If we think of Houdini as visual programming, then it starts to make sense why there’s so much overlap. In this first section, we’ll look at using variables in HScript to save time through automation. We’ll learn about global variables as a shorthand for constant and changing values that can be used far and wide throughout Houdini, and how local variables are (you guessed it) local to individual nodes.

Section 02
Bounding Box Variables
We humans don’t like to be put in boxes, but Houdini loves doing it to geometry. You’ll work with bounding box variables constantly when you’re dealing with geometry, so let’s dig into the fundamentals of what the bounding box is, how we visualise it, and how we quickly view bounding box values. Then we’ll learn how to use local variables on the transform node to create simple, but crucial, procedural workflows.

Section 03
Referencing Parameters & Bounding Box Values
Put down your pen and pick up your mouse – we’re putting what you’ve learned into practice with a new project. In this first phase, we’ll teach you how to add crucial parameter expressions without having to actually write expressions at all, why positioning your geometry relative to the origin is such an important first step in procedural systems, and how a node that does nothing can be used to great effect.

Section 04
Understanding Orientation Along Curves
We’re marching on with our practical project and introducing a new, essential concept: how to master precise control of orientation when copying geometry to curves. Let’s face it, figuring out orientations in 3D space is confusing. We’re covering all the fundamentals (like curve tangency, up vectors and the up attribute) so you can orientate your geometry exactly as you need to, every time.

Section 05
Distributing with Precision
We’ve mastered orientation, now it’s time to talk distribution and spacing. In Houdini, we can make random effects with just basic knowledge, or even purely by accident! Deliberate control over our geometry is a different story, and far more useful. As we take our practical project to the next level, you’ll learn to control distribution along curves using resample length, tangent computation, as well as arc versus chord length measurement methods.

Section 06
Resampling & Raying
Strap yourself in, it’s time to go off road! Now that you can distribute geometry along a curve with laser precision, let’s kick things up a notch. In this practical section we’ll upgrade our system to handle elevation and any kind of terrain, thanks to our trusty allies the ray and resample nodes — two cornerstones of Houdini procedural workflows.

Section 07
Spare Parameters & Randomising Attributes
Customising factory nodes might sound like something only advanced users would do, but making your own tools is what Houdini is all about. Step into this brave new world by learning how to create your own parameters for ultimate control, then dial in some randomisation for just the right amount of chaos. Along the way, we’ll unpack even more features of the resample node, as well as put some key learnings from the last course into practice.

Section 08
Putting it into Practice
It’s the final piece of the Geometry Essentials 03 puzzle! Let’s put our new system to work with a series of environment layout tasks. We’ll cover fresh concepts and techniques like creating curves from edge selections, using poly extrude to offset curves, creating spare parameters to iterate through variants, and a whole lot more. These are the practical skills you’ll use day in day out as a true Houdini artist.

Другие части:
[hipflask] Houdini Made Easy The Core Essentials [ENG-RUS]
[hipflask] Houdini Geometry Essentials 01 Components & Primitive Types [ENG-RUS]
[hipflask] Houdini Geometry Essentials 02 Attributes: Principles, Normals & Vectors [ENG-RUS]
[hipflask] Houdini Geometry Essentials 03 Attributes, Variables & Parameters [ENG-RUS]

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Курс зарезервировала abasovna, начнёт переводить, когда запишутся минимум 10-15 человек