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Attaching body parts with different numbers of edges

From: Modeling a Character in 3ds Max

Video: Attaching body parts with different numbers of edges

We've already learned how to attach body parts that have the same number of edges when we welded the ear to the head, but what if body parts have different numbers of edges? This is a common issue that modelers run into because many times we make new models by cutting up and reusing existing models. It's also an issue if we make body parts separately, like we've been doing in this course. There are just a few strategies to keep in mind when doing this and once you learn them, attaching anything to anything else will be simple. There are three basic techniques to equalizing the number of edges on either side of a gap.

Attaching body parts with different numbers of edges

We've already learned how to attach body parts that have the same number of edges when we welded the ear to the head, but what if body parts have different numbers of edges? This is a common issue that modelers run into because many times we make new models by cutting up and reusing existing models. It's also an issue if we make body parts separately, like we've been doing in this course. There are just a few strategies to keep in mind when doing this and once you learn them, attaching anything to anything else will be simple. There are three basic techniques to equalizing the number of edges on either side of a gap.

The first two are really easy to remember. Simply add edge loops to one side or remove them from another. However, there are times when adding or subtracting edge loops isn't an option. For example, if more geometry will make you go over your poly limit, or if it would just make things too complicated and removing them isn't an option because there is just no geometry to spare, in these cases you want to do a reduction. This is a neat little trick that takes three edge loops and closes out two of them, leaving just one behind.

Let's take a look at the neck connection. I'm just going to zoom in here, and also let's turn on Edged Faces so we can see what we're dealing with. I've already counted out the number of edges on all the borders that we need to attach. The head currently has 19 edges, and the collar area has 21, a difference of two edges. That means that this is a perfect place to use a reduction because it removes two edges. Let's look at the hand very quickly.

The hand has 16 edges, and the arm has 18, also a difference of two. If their difference was close to double, say one had 10 and the other had 20, you may consider simply subdividing the smaller of the two so that they would instantly have the same number of edges. Let's put this into practice. I am going to go up and start with the neck. We need to reduce two edges on the body side of the neck. It's usually a good idea to do reductions in a place that's less visible, like on the back side of a character or in a place that won't deform very much.

So let's look at the back side of the character. I'm going to do a reduction on these three edges right here. So the way I'm going to do it is go to Edge mode and select two of these. Now over here in your Editable Poly panel click Collapse. Finally, click on the edge that's left behind here, and let's go up to Edges > Remove. The result is clean and uses only four-sided polygons.

Now we can attach the two meshes and use Target Weld to close up the seam. So now let's attach the two together. I want to select the head and then go down to Attach and select the body. So now it's one object. I'll right-click the lock that in. Now we can just to use Target Weld to close up this gap. So we've got all those welded up. The seam between the head and neck can look a little jagged, so I'll just use Paint Deform to smooth out some of the unevenness.

Go up to Freeform > Paint Deform, and I'll use Relax, and I'll just crank some of these settings down because they are too big. And I'll keep making a few adjustments. Now to do the wrist. Let's get out of this object here. Let's take a look at this from over here.

The arm has two more edges than the hand, but instead of reducing edges on the arm, I'll do a little variation on the reduction that we just learned. This time I'm going to add a reduction to the hand. And watch how this works. We use the Cut tool to cut through some edges. So let's go up to Graphite Modeling Tools and select the hand, and actually let's go back down to Editable Poly in this object. We can actually remove the TurboSmooth, so I'll just delete that. Let's go up to Edit > Cut.

Let's see, let's cut some right here. It looks like this is a pretty broad area where there is not a lot happening anyway. Let's cut from, let's see, right about here, and let's cut up through a few of these and then up to a vertex and then back down on the other side. Right-click to lock that in. And let's go into Edge mode select this edge that's in between these two triangles right here. Go up to Edges > Remove. Great! Now we've just added two edges to the hand.

Go ahead and weld and smooth just like we did before. Making different parts of the body flow smoothly into each other is a task that character modelers are constantly faced with. Armed with these skills, you'll be ready to take it on with the least amount of stress possible.

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This video is part of

Image for Modeling a Character in 3ds Max
Modeling a Character in 3ds Max

42 video lessons · 7082 viewers

Ryan Kittleson
Author

 
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  1. 7m 36s
    1. Welcome
      1m 2s
    2. What you need to know before watching this course
      52s
    3. Overview of the design process
      3m 26s
    4. Using the exercise files
      2m 16s
  2. 40m 7s
    1. Extruding edges and faces
      7m 42s
    2. Using Paint Deform
      8m 58s
    3. Working symmetrically
      5m 32s
    4. Using TurboSmooth
      4m 39s
    5. Setting up the image planes
      8m 28s
    6. Exploring edge flow
      4m 48s
  3. 1h 15m
    1. Creating the basic facial structure
      5m 26s
    2. Creating the basic facial features
      8m 51s
    3. Making the head and neck
      7m 55s
    4. Refining the mouth
      11m 24s
    5. Shaping the eyes
      10m 53s
    6. Building the nose
      6m 45s
    7. Crafting the ears
      6m 9s
    8. Making the teeth and gums
      10m 4s
    9. Modeling the tongue and eyebrows
      7m 43s
  4. 44m 38s
    1. Modeling the upper body
      9m 45s
    2. Building the hips, legs, and feet
      5m 8s
    3. Constructing the palm and thumb
      7m 14s
    4. Making fingers and finishing the hand
      7m 53s
    5. Fleshing out the body
      9m 22s
    6. Attaching body parts with different numbers of edges
      5m 16s
  5. 13m 39s
    1. Drawing the NURBS curves for hair
      4m 11s
    2. Sweeping the NURBS curves into polygon objects
      3m 32s
    3. Sculpting the polygon hair clumps
      5m 56s
  6. 49m 54s
    1. Modeling the pants
      7m 16s
    2. Making wrinkles in the pants
      9m 0s
    3. Modeling the belt
      5m 30s
    4. Making the belt loops
      6m 35s
    5. Creating the shirt
      9m 33s
    6. Making the shoes
      12m 0s
  7. 12m 7s
    1. Putting on the finishing touches
      6m 7s
    2. Thinking about artistic appeal
      3m 59s
    3. Recapping the most important concepts
      2m 1s
  8. 27m 24s
    1. Understanding UVW maps and seams
      6m 28s
    2. Using Peel to flatten the UVW maps
      3m 50s
    3. Dealing with UVW maps across multiple objects
      10m 5s
    4. Refining the UVW layout
      7m 1s
  9. 51s
    1. What's next
      51s

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