Just Colored Lighting and Dynamic Lights added to a very fast shader for Potato computers, with optional shadows, texture upscaling, and great PBR support (even from block lights). Distant Horizons and Voxy are also supported.
It is the fastest colored lighting shader I could make, and the optional Global Illumination has no fps impact.
Beta versions are not tested on all hardware yet. Please let me know if it works for you, or if you get bugs, on discord.
If you find anything in mods that doesn't glow right, let me know and I'll try to add support asap. All modded blocks that are light sources should automatically work, and pbr textures can optionally also turn anything into colored light sources.
concrete can also be optionally turned into colored lights for all your neon light needs.
The shader might work on older versions, I just haven't tested them so let me know!
You can customize the flashlight feature by editing this template resource pack: https://modrinth.com/resourcepack/flashlight-template-for-simply-upscaled