The shader is rethinking voxels.
This screenshot is from my single-player survival world that happened to spawn me on an island. The island is actually quite far away from other land masses, and made for a really fun world.
This is an earlier map of my world, prior to when I had expanded further south and added the lighthouse seen in the screenshot.
The more I look into it, the more insane this mod is. You can control your whole network of lights with items in the game, or you can link your in-game lighting network to the actual professional theatrical lighting software of your choice over a LAN-based DMX512 connection and practice real-life lighting controls or produce an entire light show in Minecraft.
I’m going to buy a license of LightKey just to up my Minecraft immersion