View Full Version : bone tutorial?

Captain Chaos
01-14-2010, 02:10 PM
I made the attached bunny and want it to be poseable. I made skelegons, bones, etc. but can't control deformation. Is there a good tuorial around that's not on youtube (my job blocks that site).

01-14-2010, 02:40 PM
Where are you getting bad deformations?

Captain Chaos
01-14-2010, 02:47 PM
I only tried to move the head and it looks like the attachment. I turned on bone x-ray so you can see the skeleton I made. I'm trying this for the first time.

01-14-2010, 03:07 PM
Some hold bones or weightmaps, or both are the things that are gonna help you out here... theres a lot to go through really so far as character deforms go.

01-14-2010, 05:12 PM
A quick thing to try is drawing a couple of hold bones from one of the head bones into the cheek areas.
You can also create simple weight maps...one for the head and one for the body.
In the scene editor you can assign multiple bones to a single weight map pretty quickly.
Run the character thru some pose tests and see where you have any other deformation issues
before determining a course of action. :)

01-14-2010, 07:50 PM
This will get you started:

Make sure to look here and scroll down to "Character Animation" as well:

You can get a lot more sophisticated, but this helped me to get started.


Captain Chaos
01-15-2010, 06:43 AM
Thanks. I wanted to do weight maps, but I couldn't make them work based on what my book had to say. I saw the hold bones, but that seemed inelegant to me. I guess I should just try it anyway.

01-15-2010, 08:49 AM
I can tell you how i do.

My simple method...

First, i have doing a simple rabbit to show you my method:


Doing the bones (skeletons) on an other layer:


Cut the skeletons and past them in the first layer (where is the rabbit)


I go on "map"


Create a new weight map; this one is for the head, so i call her "head": The value is -0,5


I see "head"


I use the tool "weigth"


And i put the view on "weight shade"


And with thhe tool "weigth", wich work on points, points after points, put the tool on a point and push phe mouse on right; the polygons turn red:



01-15-2010, 08:50 AM
I do the same things for arms, legs...

Exemple the top of the arms:


If you push the mouse on left with "weigth", you can turn in blue some polygones, sure they don't be affected by the bone:


After send the object to the layout, convert the skeletons into bones;
you can assign weight map to the bones

Select the bone of the head and give him for weight map , the weigth map "head"


And you can doing some test

(It' s with the weight map)

Without weigth map (weight map: none):


With the weight map:



01-15-2010, 08:50 AM
The arm

Without weigth map=



With the weigth map:



And you can adjust the weight map, clicking on "modeler", in the layout, adjust the weight map in the modeler, and doing "synchronise to layout", to see if it' s better.

I hope this can help.

Captain Chaos
01-15-2010, 11:18 AM
Awesome! thanks!

01-15-2010, 06:34 PM
The value is -0,5

Why is that? Why not just 0?


01-15-2010, 10:58 PM
I do like that, i put a small negative value, just a little sÚcurity.

I have doing this quickly, i think that is not very difficult to had some weight map for the bones, especially these of head hands arms legs feets

It' s just take a little bit time.

But after, it' s look better.

Captain Chaos
02-01-2010, 11:43 AM
I finally got a chance to try this, it went okay, but I'm missing something where the weights are applied to the bones in layout. Could you explain?

Captain Chaos
02-01-2010, 11:57 AM
Just figured it out. Thanks!