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

Creating fins using the Extrude tool

From: CINEMA 4D: Designing a Promo

Video: Creating fins using the Extrude tool

A shark has a lot of fins. We typically think of the one on a top that sticks out of the water and scares beachgoers, but they are really a lot more. We want to create them in a specific order so we can minimize how much backtracking and fixing we need to do on our model. In this first part of the fins we are going to create the pectoral and the pelvic fins, which run along in the size of that shark, and we are doing this because we already have the Symmetry object in place and that's going to make making those sets of fins really easy. Let's start off with the pectoral fin. I've select my cube object. Now, I'm about to make a drastic change. So let's Ctrl+Drag a copy of that down into the hider and call that 005.

Creating fins using the Extrude tool

A shark has a lot of fins. We typically think of the one on a top that sticks out of the water and scares beachgoers, but they are really a lot more. We want to create them in a specific order so we can minimize how much backtracking and fixing we need to do on our model. In this first part of the fins we are going to create the pectoral and the pelvic fins, which run along in the size of that shark, and we are doing this because we already have the Symmetry object in place and that's going to make making those sets of fins really easy. Let's start off with the pectoral fin. I've select my cube object. Now, I'm about to make a drastic change. So let's Ctrl+Drag a copy of that down into the hider and call that 005.

And let's hide it from view and let's fix that so we don't have to worry about that anymore. I'm going to make both dots gray. On my original cube object here, let's switch to the side view and you can see that I already have a nice base. The pectoral fins come right out of this polygon here. So that's a perfect place to start. So let's switch back to the Perspective view. Move into polygon mode and then use our Selection tool and grab this as polygon right here. And actually, I grabbed the wrong one.

Let's make sure that I have the right one selected. I will grab this polygon in the Orthographic view and move back to the Perspective view. Now, we're going to use the same kind of technique that we did for the eyes, except this time instead of extruding inward to create an indentation we're going to extrude outward. But first we need to create some extra polygons for us to work with. So we use the Extrude Inner tool to drag and drag to the left here and then create an inset of polygons. Now, I can use the scale tool. T on the keyboard, and squish that down, because the fin is really thin on one axis.

Let's move that polygon around and bring it down to right about there. Now, I can use the Extrude tool. D on the keyboard or you can right- click and grab Extrude and drag to the right to extrude outward. Now I need a little more detail, but this is going to for now. I'm going to just drag it out here. A lot of times what I do when I'm extruding I'd like to do one long extrusion and then use the Knife tool to make some cuts to shape things up. So let's do that. So I've got one long extrusion and now I can use my Knife tool, K on the keyboard, and make a cut up here near the top and you see how it tightens up the fin.

Then I'll make another cut down here in that fin, as you can see from the drawing. Let's switch to the side view. It has sort of a leading edge and a trailing edge that has a little bump in it up here. So we want to make that bump. So let's switch back to the point mode and then grab just these two points. I used the Spacebar to grab the Selection tool and let's take these points here and move them on the Z-axis. That's going to shape that up. Then we'll take these two points here and move them this way on the Z-axis.

That's going to create a nice little leading edge for us and take these guys and move them on their X-axis. Now that we've got those points moved around, we can just refine it just a little bit. There we go! I want to create a pretty aggressive shape to that fin, because it really is intended to slice through the water. So you want to create a very sharp and aggressive shape.

Now, we don't want our fins sticking out to the side like that. It really kind of dangles down and they use that for steering. So if I grab these first groups of points, I want to grab all the points that are associated with the fin. So I'll go to the Selection menu and use the Grow Selection command. When I execute that, it grabs the next set of points up. I'll do that a couple of more times to get all the points for the fins. Selection > Grow Selection, Selection > Grow Selection, and now I have all those points for the fin and I can just move them out just a bit.

Then I can rotate them down into position and then tuck that fin right into this side. You can see now I've got a nice pectoral fin. That really looks pretty good. So now we can move onto the second set of pectoral fins. And if I look at the side view of the shark, in the side view its actually looks like a single fin, but really it's two fins that are in this region.

So I'm going to grab the polygons associated with that. So let's switch back to the side view and go to Polygon mode. Make sure you're using the Selection tool and grab just that polygon right there. That's the one I want to use as the basis for my second pectoral fin. If I right-click and do another Extrude Inner, you can extrude in to make that fin and then to another Extrude outward by dragging it to the right to make that fin.

As you can see, it's starts off as a little bump. Then I can do another extrusion to get the fin a little bit longer and then I can just reshape it using the points. So let's start off by scaling that polygon. I will hit T on the keyboard to get the Scale tool and just scale that polygon. You know what, rather than use the Scale tool, I think it might be easier actually to just to move the points around. So let's switch to Point mode, grab a Selection tool, and then grab these two points right here. I'm going to move them on the Z-axis to kind of make that fin a lot thinner.

Then move this one up like this. You see that how the fin gets a little bit thinner each time I do that. I am going to move those guys together. Now I want to just create that nice little shark-like indentation here in the fins. So I will grab these two points and I am going to move them back a little bit. I think I need to do one more extrusion. Grab these guys and move them up just a bit. I'm going to do one more extrusion. Let's tighten this up and so I can get that nice this little point right here on the leading edge.

So I will switch back to Polygon mode and then right-click and grab my Extrude tool and do one more extrusion outward. Then I'm going to scale this polygon by switching to Point mode. Remember, whenever you're moving points you also moving the polygons. So as I move these points around I can switch up the shape of that polygon and just make it nice and smooth. So move those guys together there and adjust the leading edge of this fin.

I think it's going to just about done. There we go! Let's take a quick rendering, Command+R, and we can see that we've got a great looking second pectoral fin. So the Symmetry object is a really important tool for modeling and it makes things like these fins and the symmetrical elements on the shark object really easy to create.

Show transcript

This video is part of

Image for CINEMA 4D: Designing a Promo
CINEMA 4D: Designing a Promo

70 video lessons · 13489 viewers

Rob Garrott
Author

 
Expand all | Collapse all
  1. 5m 8s
    1. Welcome
      1m 7s
    2. Using the exercise files
      1m 24s
    3. Overview of the project template
      2m 37s
  2. 11m 12s
    1. Creative brief
      1m 57s
    2. Sketches and script
      3m 8s
    3. Understanding the graphic animation process
      6m 7s
  3. 25m 5s
    1. Understanding the animatic process
      2m 15s
    2. Importing sketches into After Effects
      6m 20s
    3. Timing out the animation
      10m 4s
    4. Adding onscreen timecode for reference
      6m 26s
  4. 40m 2s
    1. Creating text and logo elements in Adobe Illustrator
      6m 44s
    2. Importing Illustrator elements into Cinema 4D
      8m 24s
    3. Creating guide planes for modeling a rough shark
      6m 13s
    4. Creating a rough shark model
      12m 14s
    5. Preparing a dummy rig using a Spline Wrap object
      6m 27s
  5. 53m 17s
    1. Setting up a project file for the cameramatic
      6m 15s
    2. Animating the rough shark using the Spline Wrap object
      5m 14s
    3. Animating the camera
      6m 8s
    4. Duplicating an animated rough model to create a school of sharks
      11m 4s
    5. Creating a preview movie and importing it into After Effects
      5m 45s
    6. Assembling the cameramatic
      8m 34s
    7. Fine-tuning the cameramatic timing
      10m 17s
  6. 1h 9m
    1. Preparing for the modeling process
      6m 7s
    2. Outlining the shapes using the Knife tool
      9m 50s
    3. Creating the mouth using the Extrude tool
      10m 40s
    4. Adding eyes using the Symmetry object
      9m 57s
    5. Creating fins using the Extrude tool
      7m 11s
    6. Creating the tail and dorsal fins using the Extrude tool
      10m 38s
    7. Creating gums using the Symmetry object
      6m 45s
    8. Creating teeth and finalizing the model
      8m 6s
  7. 15m 5s
    1. Understanding the rigging process
      2m 0s
    2. Opening the shark mouth using the Morph tag
      5m 9s
    3. Using XPresso to link the jaw to the Morph animation
      7m 56s
  8. 33m 25s
    1. Using BodyPaint to prepare the model for texturing
      8m 22s
    2. Applying color to the shark using BodyPaint
      6m 45s
    3. Giving the shark character by painting in the diffusion channel
      5m 29s
    4. Roughing the surface using the bump channel
      4m 34s
    5. Texturing the eyes
      3m 51s
    6. Texturing the teeth and gums
      4m 24s
  9. 21m 24s
    1. Replacing the rough shark model in the intro shot with the finished model
      6m 47s
    2. Replacing the rough shark model in the transition shot
      3m 43s
    3. Replacing the rough shark model in the hero shot
      4m 28s
    4. Replacing the rough shark model in the end page shot
      3m 42s
    5. Updating the cameramatic with the final animation
      2m 44s
  10. 50m 27s
    1. Creating an underwater look using Global Illumination and atmosphere
      9m 47s
    2. Lighting the objects and creating shadows
      6m 54s
    3. Shading the text using materials
      6m 28s
    4. Creating a reflective floor for the underwater scene
      3m 58s
    5. Lighting shot 1: Copying and pasting a lighting setup from another project
      5m 49s
    6. Lighting shot 2: Pasting a lighting setup and making adjustments
      3m 57s
    7. Lighting shot 4: Separate elements in a shot (the shark)
      3m 13s
    8. Lighting shot 4: Separate elements in a shot (the text)
      10m 21s
  11. 22m 7s
    1. Preparing shot 1 for rendering to After Effects
      6m 20s
    2. Preparing shot 2 for rendering by saving and using render presets
      4m 45s
    3. Preparing shot 3 for rendering
      2m 37s
    4. Setting up shot 4 to render in two passes
      4m 4s
    5. Performing a preflight check to ensure clips are ready to render
      2m 9s
    6. Batch-rendering
      2m 12s
  12. 1h 13m
    1. Importing assets and setting up the After Effects project for final compositing
      6m 5s
    2. The intro shot: Using Photoshop elements and noise effects to add atmosphere
      8m 38s
    3. The intro shot: Compositing in stock video footage to add character
      4m 51s
    4. The intro shot: Adding text elements to the composite
      8m 32s
    5. The hero shot: Controlling the look using precomps
      7m 59s
    6. The hero shot: Using stock video footage to add character
      7m 19s
    7. The end page shot: Combining multiple passes to form a final composite shot
      2m 41s
    8. The end page shot: Adding text elements to the composite
      7m 44s
    9. Compositing the transition shots
      3m 47s
    10. Assembling the final composition
      9m 2s
    11. Adding the final audio to the composition and rendering
      7m 10s
  13. 21s
    1. Goodbye
      21s

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 CINEMA 4D: Designing a Promo.

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.