How the inputstream binds the item model

[ALandXLT]

Sorry, I can't speak English. I can only ask for help through an interpreter. 
Say thank you in advance. 
I've got an inputstream of images, and I want to bind it to weapons and items.

Edited July 17, 2021 by ALandXLT

[ALandXLT]

1 hour ago, diesieben07 said:

您需要一个自定义的 ResourcePack。这些数据来自哪里？为什么你不能有正常的 png 文件？

It comes from encrypted zip, and some content related to authorization cannot be accessed by users.

[ALandXLT]

16 minutes ago, diesieben07 said:

抱歉，我们不会为您提供内容限制和类似 DRM 的功能。

What I need is not the function of content restriction. I just want to bind the input stream to the item. You have already answered me. Thank you.

Edited July 17, 2021 by ALandXLT