Some confusion about equation (2) in the paper

[ShaohuaL]

Hello, if the $R_t$ means the Rotation from the object local coordinate system to the world coordinate system, why $R_w$ doesn't equal to $R_t R_o$ instead of $R_o R_t^T$ in the manuscript？Hoping for your reply！Thank you!

[yunzhiy]

Hi, they are the same for reconstruction and novel view synthesis tasks as this is equivalent to learning inverse of the rotation.