1. Let's create a torso with breasts. The object can be created via several methods, including subpachting. The polygons should be as close to the same size as possible, however. The breast section and the main body section should be different surfaces as usual. Body.lwo is the sample.
2. Add a motion to the body object (body.lwo) in Layout. A motion of rocking lightly from side to side has been chosen. The motion is added twice in order to achieve a back-and-forth animation. See Mdc03mox.lws.
3. Open LW_MotionDesigner
from the Plug-in Options button. Make sure that body.lwo is selected from the Object
tab, and switch the Target ON by clicking on it. This will import the object from Layout
as well as motion data contained in the keyframes.
4. Set the parameters required for each surface
on the Surface panel. For the b1 section of the body object, set Fixed to ON,
and enter a value of 10000 for the hold-structure (this will be explained later).
5. The breast section (b2) should be a filled,
elastic body. However, the structure of the object is
hollow; calculating the motion using a hollow structure which is supposedly an elastic body does not
produce accurate results.
Set a value of 300 for the hold-structure. The hold-structure is used to simulate elasticity. This force will keep the points contained on the specified surface in their original positions. In other words, it holds the points down where they began with a strength that depends on the value entered.
Simply defining a uniform spring coefficient causes a difference in motion between the hold-structure and the main surface(b1: fixed setting), generating wrinkles at the connections. To prevent this, enter 2 for Smoothing.
Now, implement the smoothing process twice for the area between the
hold-structure spring coefficient values of 10000 and the main
body section of 300 in order to prevent wrinkles at their connections.
After trial and error, Viscosity, Resistance(the resistance coefficient),
and Spring (the spring coefficient) have been determined as the
above.
6. Now, set the wind and the gravity. Since
these variables are not necessary at this time, enter zeroes for both. The scene file of the settings from 4 to 6 above
is mdc03.lws. By loading this scene and executing LW_MotionDesigner,
all the settings will be regenerated.
7. Let's calculate the motion by clicking on "Start". If you are satisfied with the result, save the data in a file. Specify the filename and save the data. Body.mdd is the sample.
8. Go back to Layout. Select MD_Plug as the displacement map plug-in for the object and verify that the saved MDD file is loaded. The motion of the body object is incorporated on the MD side and the motion itself is incorporated in the MDD file. Select Key-Move=OFF to stop the motion caused by Layout. Otherwise, the motion will be calculated twice causing abnormalities. Mdc03.lws is the scene file for this example.
9. Manipulating the time slider should animate the object.
