Goal: To be able to retrieve where the item is being rendered so we can render accordingly
Views Needed:

• 1st Person (left hand)
• 1st Person (right hand)
• 3rd Person (left hand)
• 3rd Person (right hand)
• head (i presume like the pumpkin mask)
• gui (inventory slot)
• fixed (frames)
• ground

Return Type: ItemCameraTransforms.TransformType

Below is an image where it looks how I want it to in 1st person and 3rd, but not in the slot. I have no way (that I'm aware of) to be able to independently translate the item when it's in the slot.

Unfortunately I don't believe it is possible to get this information without a complete rewrite of the system, as vanilla's own items don't have access to this. I may be able to make a system that circumvents vanilla rendering entirely but that would have undesirable effects.