About Material Separation

(Updated 07/03/2020)

This page explains the material separation process with specific examples.
Material separation is the process of dividing an illustration into parts, such as eyelashes, eyeballs, outlines, and so on, and
is a necessary part of the Live2D modeling process.

Please refer to the tutorial video “Illustration Processing” for detailed material separation and explanation for each part.

The drawing data is imported into the Cubism Editor, but in rare cases, depending on the drawing tool you are using,
it may not be imported properly.

Please check the following drawing tools that are guaranteed to work.


Recommended graphics software when creating PSDs for import

  • Photoshop (adobe)


Criteria for Material Separation

The amount of material divided will vary depending on the model, but
the more detailed the division, the better the quality of the model will be.




Material Separation Procedure

First, copy the original image.
Place the copied originals in a newly created group (folder) and rewrite the names of the parts for clarity.

The original drawing should be copied in parts of the required areas.


Set a layer mask on the group from which you copied the original image, and cut around the part you wish to crop.
If you accidentally cut off too much of the drawing area, a layer mask is useful because it can be easily undone.


Be sure to create a new layer and add the color and lines of the part to it.
The parts that move significantly and the parts that will be visible when other parts move should be drawn more in advance.
Be careful not to add directly to the original layer in the group, as it will be difficult to revise later.


The above is a rough flow of material separation.
For a detailed explanation of the division of materials by section, please refer to the tutorial video “Illustration Processing”.

Although the material separation can be worked with a variety of graphics software,
we recommend working with [Photoshop] or [CLIP STUDIO PAINT], where you can use a variety of brush tools according to the layer masks and illustrations.


PSDs for material separation and import

When creating models, it is useful to have the following two PSDs available for easy modification and management.

PSD for material separation:
Mainly used for processing and editing parts

PSD for import:
Used for importing into Cubism Editor


PSD for material separation

PSDs for material separation are PSDs that can be processed and edited when additional parts or further material separation becomes necessary during model creation.
All folders and layer masks will be in their original state before merging.




PSD for import

The PSDs for import are PSDs that combine folders and layer masks in the PSDs for separation into
a single layer of parts for import into Cubism Editor.

It is basically easier to do the drawing additions to the “PSD for import,” but
it is recommended to do this with a “PSD for material separation” so as to facilitate later editing.


For more information on how to create imported PSDs, see “How to Create Imported PSDs”.


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