curvature of an object in CAS

- Unhide the reference. It must be visible ( eye icon ) and selectable ( cursor icon );
- Select your item;
- In Modifiers tab add Data transfer modifier;
- Choose Reference as Source object;
- Enable Vertex data;
- Enable Vertex groups;
- In Mapping choose Nearest face interpolated;
- Enable Face corner data;
- Enable UVs;
- Choose uv_1 in Layer selection ( don't forget, otherwise uv_0 will be overwritten as well);
- In Mapping choose Nearest face interpolated;
- Click on Generate data layers;
- Apply the modifier;
- Add Data transfer again and transfer Vertex paint the same way, apply;
- Switch to Edit mode, select everything with A, in Tools tab expand Weight tools;
- Clean with All group;
- Limit total with 4.