Hi,
My question is simple: Can I or how to render an item with some coverage based on NBT tag of the item?
For example, I have a diamond sword and now it's rendered as it is. When I changed some of its NBT tags, I need it rendered differently. Say, a diamond sword with blood. Modifying one item may not difficult, but what should I do if I want all sword items have this feature (maybe include swords of other mods)?