#03 Polygon arrangment

The moment you import the PSD file, the drawing objects have their polygon are automatically arranged. Depending on the conditions, it may be tricky to adjust the polygons.
For example, eyelashe is a component where the deformation occurs a lot.This part requires more careful handling, but with the automatic arrangement of polygons, you may feel constrained.
In this tutorial, we will learn to readjust a drawing objects' polygons.

    Editing the Texture

We will be using "Texture Editor" for the polygon correction.
We will work on the "eyelash" drawing object for the polygon correction.

1. Under the "Eye" group in the "Parts" palette, expand the list to select the component "Left eye".
2. Then, click the button "Edit Texture".

The "Edit Texture" dialogue appears.
We will edit the polygon from this dialogue.

If you double click on the drawing object from the canvas, you will also be able to open the "Texture edit" dialogue.

    Correcting the left eye polygon - deleting points

            In order to correct the polygon, start with deleting unnecessary points.

            Scrolling the mouse wheel to zoom in/out. Space key + drag to pan view.

Click on the point while holding down Alt key allows you to delete the point.


Delete the points as instructed in the following picture.
Note that we will need to keep at least 2 points (Do not delete all!).

         After the deleting process, there is a chance that the draw object might have been placed off from the original position. Reposition               as needed.
       Also, there is the chance of deleting the entire draw object, so be careful!

    Correcting the left eye polygon - repositioning the points

To add a point by clicking on the draw object.
Begin with inputting a point on to the object like the following image.

Next, surround the upper area.

Then, surround the lower area.
Make sure you have wrapped around the texture fully.

If you find previous two points an obstacle, feel free to delete them now. 
                              Again, make sure you have at least 2 points remaining before you delete those two points.

Finally, link up all the points that are not connected yet.

After adding in the points, try the "Automatically form polygons from points" function to connect all the unconnected dots.  
To protect the outer surrounding area of the drawing object, first click "Maintain the outer perimeter". Then, click "Automatically form polygons from points" button. This will automatically link up all the dots with lines.

This function is also available by pressing Ctrl + R, or Right-click and select "Automatically form polygon from dots"

After linking up the dots, click the "OK" button to return to the canvas.

By doing so, the "left eye" drawing object is now ready.

    Correcting the right eye's polygon

Next, work on correcting the right eye's eye lash.
Use the same method to correct the polygons.

    Correcting the Mouth's polygon
Now, we will work on correcting the mouth's polygon.
    Expand the "Mouth" part group, and select "Upper lip" and "lower lip" to edit. They have more deformation work to be done.

Lets begin with correcting the "Upper lip".
Lips are one of the areas with the most deformations, pay attention to the detailed points.


Afterwards, do the same procedure for the "lower lip"


          The gradient textured edges may have a color that is similar to the background color. In this instance, it makes it difficult to read the exact              border.
The following instructions guides you to change the background color to help with the problem.

1. Click on the "Background color" box.
2. A color palette will appear, use the slider to select and change the colors where it is easier to see the border.
                    3. Click "Ok" to finish.

    Polygons other than the eye's and the mouth's.
For this tutorial, there is no need to correct the polygons for area other than the eyes and the mouth.
We can now move on.
The following image shows the adjustment of the eyebrows.

The shape of eyebrows tends to change its shape depending on the emotions of the character.
Therefore, there may be a need for correcting the polygons for eyebrows.
In your future Live2D models, you might need to work on the eyebrows. The following image shows our recommended adjustment for your reference.