Custom ItemReader in inventory

[Sleepwalkerx]

Hello. I want to make a custom render of an item in the inventory. I need its texture to crawl out of the inventory slots. To make it clearer, I have provided a screenshot. I do not quite understand how to do this, please tell me.

 

If you're wondering why I'm doing this. I do this to create some kind of animation effect on the subject and without going beyond the inventory I cannot do the way I want. In principle, if I understand how it all works, it will get better.