Mesh_Tools_Low poly_Make_Low poly - Diffeomorphic/import_daz GitHub Wiki

Make Low-poly

When we press the button we must specify the number of iterations. The Quick Low-poly uses Blender's Decimate modifier, set to Unsubdivide, and this number of iterations in that. The default is 2. An even number of iterations generally works better.

The original Aiko weighs in at

Verts: 16556, Edges: 32882, Faces: 16368

The Make Quick Low-poly button reduces her footprint to

Verts: 5424, Edges: 12723, Faces: 7341

i.e. the number of vertices is reduced to a about third.

However, there are a number of problems, e.g. the white spots in the shoulder and neck areas. The quick low-poly uses Blender's Decimate modifier, which does not respect UV seams. A decimated face can contain vertices in different UV islands, making the middle of the face stretch over random parts of the texture.This is most easily seen in the UV editor.

Moreover, since the quick low-poly applies a modifier, the mesh must not have any shapekeys. This is not such a big problem for Genesis 3 and 8, where facial expressions are implemented with bones, but for Genesis and Genesis 2 this means no face expressions. The Apply Morphs button is duplicated in this section to get rid of any shapekeys before making a quick low-poly.

update. by Alessandro

From version 1.7.4 the polygon reduction is improved and now uv islands are preserved with unsubdivide.

ref. https://bitbucket.org/Diffeomorphic/import_daz/issues/2018/