Easy-to-follow video tutorials help you learn software, creative, and business skills.Become a member

Adding a turbulence field

From: Creating Fur in Maya

Video: Adding a turbulence field

With the fur and the hair created, connected with the curve retractors node and all the relevant attributes set. Now we're ready to create some animation. Now there are multiple ways that we could do this. For example, if you select the hair system and go into that hair system node, you will see that there's a turbulence section. And this is a way of adding chaos to the hair system. Alternately you can go into the nucleus note, which is the master solver which controls the hair system and you'll see that under gravity and winds you've got wind speed and wind noise.

Adding a turbulence field

With the fur and the hair created, connected with the curve retractors node and all the relevant attributes set. Now we're ready to create some animation. Now there are multiple ways that we could do this. For example, if you select the hair system and go into that hair system node, you will see that there's a turbulence section. And this is a way of adding chaos to the hair system. Alternately you can go into the nucleus note, which is the master solver which controls the hair system and you'll see that under gravity and winds you've got wind speed and wind noise.

However either one of those methods. Would be kind of limited. You wouldn't really be able to get a good looking wind that blows the grass. To do that, we can use a turbulence field. I want to select that hair system, and go into the end dynamics menu set and choose fields, turbulence. It's created at the origin. I just want to move it over to the sides, so that it's not underneath everything else and we can get at it easily if we need it. We want to adjust some of its attributes.

So with that turbulence field selected I'll go to the attributes editor, and most importantly we need to reduce the extenuation down to 0. Extenuation is the diminishment of the field intensity over distance, and with an extenuation of 1, we're going to get a fall off effect. You want to set that to 0, and that means that the turbulence will be equal across the entire world. We've also got the magnitude, which of course is the strength of the turbulence. Increasing that magnitude will increase the deviation of the hair system and will also increase the speed of the movement.

Set that to 100. Then we have the frequency. And the frequency of course, is the scale of the turbulence noise. And lower frequency will give us a larger wavelength. And we'll get some sweeping effects here. So let's set that frequency down to a value of 0.01. And, let's trying playing this now. Go ahead and press play. And we see a little bit of movement. It's not very dramatic. And also, if you look closely, there's kind of a strange effect where there's a sharp transition between areas.

On the grass, and what we want to do to kind of smooth that out is to set interpolation type to quadratic, which means that it's going to be a much softer effect. There won't be sudden changes in the wind, okay? Rewind that and play it. And so you see, having set the interpolation type to quadratic, now it's a lot softer. However we're not getting the effect that we want. What's happening here is the turbulence is a static field, it's not changing shape, it's just trying to draw these hair follicles to a certain location.

We want to animate that, and that's controlled those these phase attributes. We could put key frames on these, but it's better to write an expression because then we won't be locked down to certain key frames and we won't have to worry about interpolations between keys. We'll be able to render out any length of animation we want. In the next movie, we'll create some expressions for this phase on this turbulence field.

Show transcript

This video is part of

Image for Creating Fur in Maya
Creating Fur in Maya

26 video lessons · 1711 viewers

Aaron F. Ross
Author

 

Start learning today

Get unlimited access to all courses for just $25/month.

Become a member
Sometimes @lynda teaches me how to use a program and sometimes Lynda.com changes my life forever. @JosefShutter
@lynda lynda.com is an absolute life saver when it comes to learning todays software. Definitely recommend it! #higherlearning @Michael_Caraway
@lynda The best thing online! Your database of courses is great! To the mark and very helpful. Thanks! @ru22more
Got to create something yesterday I never thought I could do. #thanks @lynda @Ngventurella
I really do love @lynda as a learning platform. Never stop learning and developing, it’s probably our greatest gift as a species! @soundslikedavid
@lynda just subscribed to lynda.com all I can say its brilliant join now trust me @ButchSamurai
@lynda is an awesome resource. The membership is priceless if you take advantage of it. @diabetic_techie
One of the best decision I made this year. Buy a 1yr subscription to @lynda @cybercaptive
guys lynda.com (@lynda) is the best. So far I’ve learned Java, principles of OO programming, and now learning about MS project @lucasmitchell
Signed back up to @lynda dot com. I’ve missed it!! Proper geeking out right now! #timetolearn #geek @JayGodbold
Share a link to this course

What are exercise files?

Exercise files are the same files the author uses in the course. Save time by downloading the author's files instead of setting up your own files, and learn by following along with the instructor.

Can I take this course without the exercise files?

Yes! If you decide you would like the exercise files later, you can upgrade to a premium account any time.

Become a member Download sample files See plans and pricing

Please wait... please wait ...
Upgrade to get access to exercise files.

Exercise files video

How to use exercise files.

Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.


Exercise files

Exercise files video

How to use exercise files.

For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ.

This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.

Join now "Already a member? Log in

Are you sure you want to mark all the videos in this course as unwatched?

This will not affect your course history, your reports, or your certificates of completion for this course.


Mark all as unwatched Cancel

Congratulations

You have completed Creating Fur in Maya.

Return to your organization's learning portal to continue training, or close this page.


OK
Become a member to add this course to a playlist

Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.

Get started

Already a member?

Become a member to like this course.

Join today and get unlimited access to the entire library of video courses.

Get started

Already a member?

Exercise files

Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more

Get started

Already a Premium member?

Exercise files video

How to use exercise files.

Ask a question

Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.

Please enter the text shown below:

The classic layout automatically defaults to the latest Flash Player.

To choose a different player, hold the cursor over your name at the top right of any lynda.com page and choose Site preferencesfrom the dropdown menu.

Continue to classic layout Stay on new layout
Exercise files

Access exercise files from a button right under the course name.

Mark videos as unwatched

Remove icons showing you already watched videos if you want to start over.

Control your viewing experience

Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.

Interactive transcripts

Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.

Are you sure you want to delete this note?

No

Your file was successfully uploaded.

Thanks for signing up.

We’ll send you a confirmation email shortly.


Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

Keep up with news, tips, and latest courses with emails from lynda.com.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

   
submit Lightbox submit clicked
Terms and conditions of use

We've updated our terms and conditions (now called terms of service).Go
Review and accept our updated terms of service.