If you see dotted and not smooth textures in far away it's a common mistake of resourcepacks maker. Minecraft has a bug that disables mipmap if you set textures which their size is not a power of 2!
It's easy! Just follow this:
read this tutorial to know how to read game logs (not server logs).
search for this text limits mip level
limits mip level
identify the problematic texture, for example Texture mcicons:item/icon_toggle_off with size 30x30 limits mip level from 3 to 1
Texture mcicons:item/icon_toggle_off with size 30x30 limits mip level from 3 to 1
Fix the texture. To fix it you have to resize it to a size of: 16x16, 32x32, 64x64, 128x128, 256x256, etc. You decide one of these.
