Getting 21w10a or newer to works

Introduction

• Since Minecraft 21w10a, they are going to use OpenGL 3.2, that’s why default config will not get it to boot (see #1035). Luckily, GL4ES 1.1.5 implementation is stills enough to get it boot up to main screen. Here is some changes to get it works.
• Note that UI will be buggy and joining world is not yet working due to several shaders compilation failed and we are working on fix them (new method might works).
• This method might not works on Adreno GPU 🤔...

Getting 21w10a or newer to works

• Update to latest build.
• Download 21w10aFix.zip.
• Extract this to .minecraft/resourcepacks folder (based on @artdeell implicit conversation fix).
• Switch to gl4es 1.1.5: add to JVM arguments:

-Dorg.lwjgl.opengl.libname=libgl4es_115.so

• Modify options.txt, replace resourcePacks:

resourcePacks: ["21w10aFix"]

• (Create) and modify PojavLauncher/custom_env.txt, add:

LIBGL_GLSLES=300

Current status (not yet tested with new method)

• Adreno GPU has problem.

• UI is buggy, as of several shaders compilation failed.

• Crashes when Joining world.