Hello javiergcim, this shader is really nice and performant on my system even at the default medium settings (around 40-50 FPS avg.), but I have a nitpick with the lack of face lighting... you see, in vanilla Minecraft, certain sides of blocks are darker than others. Builderb0y told me more specifically in the shaderLABS Discord, "face shading makes it so that the top face renders at full brightness, the north and south faces render at 0.8x brightness, the east and west faces render at 0.6x brightness, and the bottom face renders at half brightness. at least in vanilla."

This is how it looks like in vanilla with smooth lighting off:

Unfortunately there's no such distinction with MakeUp - Ultra Fast:

Mind you, this is strictly at the default medium settings with nothing altered and smooth lighting off as usual. If you could add an option for this as the default, it would be really appreciated!