How to change camera illumination range

I am creating a block world type game in unity. I haven’t done anything special with lighting so far. When I run the game, the blocks are rendered, but something strange is happening with the lighting:

As you can see, there is a bit of the blocks which is illuminated, but most of them are dark, and you can’t see the texture. Some of the blocks are showing their texture within the black space. I would expect the whole side to be lit. Can someone point me in the right direction for lighting. As you can probably tell from the style of game, I am trying to replicate a minecraft-esque lighting

I fixed this by setting the ansio level to 16 for my texture atlas