Board Thread:Theories and Speculation/@comment-26118325-20150227103217/@comment-26118325-20150228110804

Sharingan can see chakra through solid objects as seen with Itachi and Sasuke seeing chakra through rock cave walls.

Also Sasuke saw the chakra from land mines vs Deidara. So if a enemy was covered by only a thin layer of smoke you would think sharingan / rinnegan would still be able to see the chakra of the enemy.