Better End Portal Shader

**A very light shader pack for Iris that only changes the End Portal effect, to make it slightly better looking.** The rest of the shader is exactly the same as vanilla Showcase Video: [https://www.youtube.com/watch?v=GNHyX-OU-tc](https://www.youtube.com/watch?v=GNHyX-OU-tc)   **This shader pack was made by MrBrose, with help from RJ_Infinity** You have permission to use this code in your own shader, however please link to this page somewhere in your project. Base code based off of "Base-Shader" by Bestsoft100 https://modrinth.com/shader/base-shader