I am making sprites for an isometric RTS. I have an air transport unit (dropship) which carries other units outside the fuselage - they basically hang outside so they are visible when loaded and can interact with the environment (shoot, get shot, etc). Something like this.
I want to use my existing nodes and sprites for the boarded units and combine them with the empty dropship sprite using z-depth maps.
This Blender screenshot illustrates the effect I am trying to do in Godot.
I don't want to create dropship sprites carrying various configuration of units as I also want the boarded units to play sprite animations which would make the total frame count too high.