It will seem weird and if you travel too far you'll see the normal overworld chunk boundaries begin, but, by doing this you'll enjoy the Middle Earth blocks, builds, and biomes in their full shader glory.

You'll end up in the same exact biome but it will be the overworld instead of Middle Earth. Once you have done so then restart the game, make a portal from the region file in Middle Earth to the overworld, then, enter the portal. You can determine which region files to copy by using Dinnerbone's coordinate/chunk/region file converter.

What you do is copy the MCA files that you want to view from the /world/ME/region/ folder to the /world/region/ folder. By copying the Middle Earth region file to the overworld what you get is perfect shaders. The only real difference between the two is which mobs spawn by default, and, the fact that the time in the overworld reverts to normal Minecraft time - this is what makes the shaders work perfectly in the overworld and causes trouble for them in Middle Earth. So if the region file is r. in Middle Earth the corresponding region file in the overworld is also r. The region files match 1:1 in both dimensions. The mod's region files are in //Middle Earth/region/ What I meant by copying the region files: explore the area in Middle Earth that you want to make screenshots of then quit. Yeah, the spotlight effect of sun or moon can be a common glitch.

Minecraft 1.12 shaders not working