This console variable affects the texture quality of the overall game.
If you 'SET basemip "0"' it will provide better quality set of texture 'mipmaps'. Otherwise if you have a really bad computer, put 'SET basemip "1". Changing this value may not always affect actual frame rate (FPS) as you would expect.
baseMip - The level of texture resolution rendered by the client (number)
- 0 - Highest quality texture resolution
- 1 - Lower texture resolution