Vaishnavism, which developed the avatar doctrine, shares the same supreme deity (Krishna), with the Shaiva, Shakta, and Smarta traditions.
The tradition developed the avatar doctrine, wherein the aligned deities are revered as distinct incarnations of Vishnu. Similarly, Shaiva, Shakta and Smarta Hindus revere Vishnu. It also includes Krishnaism, which considers Krishna as the Supreme being. 
