Texture:setMipmapFilter
Sets the mipmap filter mode for a Texture. Prior to 11.0 this method only worked on Images.

Mipmapping is useful when drawing a texture at a reduced scale. It can improve performance and reduce aliasing issues.

In created with the mipmaps flag enabled for the mipmap filter to have any effect. In versions prior to 0.10.0 it's best to call this method directly after creating the image with love.graphics.newImage, to avoid bugs in certain graphics drivers.

Due to hardware restrictions and driver bugs, in versions prior to 0.10.0 images that weren't loaded from a CompressedData must have power-of-two dimensions (64x64, 512x256, etc.) to use mipmaps.
Texture:setMipmapFilter( filtermode, sharpness )
filtermode FilterMode The filter mode to use in between mipmap levels. 'nearest' will often give better performance.
sharpness (0) number A positive sharpness value makes the texture use a more detailed mipmap level when drawing, at the expense of performance. A negative value does the reverse.
Texture:setMipmapFilter()