The Index Picker lets you cycle between the index 0 and a given last index. The only Index Picker is currently used for changing the skin appearance, better the Skin Material Index.
- Display Name shows a text left to the selected index.
- Parameter Name can be used for specific setters.
- Default Index sets the picker on a specific value if no Customization Profile is loaded.
- Last Index is the last index. If reached a press on “Next Index” arrow cycles back to index 0.
¶ Use Case: Face - Head & Variant Picker [V7]
Since the V7 update and the change for multiple head meshes (see DT_AnatomyProfiles), the Head picker to the left got introduced and gets initialized in combination with the Variant picker to the right.
Inside of WBP_CharacterEditor > Event Graph > Initialize - Face Heads and Variants, you can find the shown nodes to load the relevant data. First, we initialize the Face Head picker from the current Anatomy and Head Profile and bind to its OnValueChanged event to update the Customization Profile and Face Variant picker on that event.
In the initialization a part of that update logic is also called directly, to initialize the variant picker with the possible indices corresponding to the initially selected head mesh.