Using various embodiments, methods and systems for generating user interaction based data in a 3D environment are described. In one embodiment, a system comprises a client computer that includes a 3D engine configured to determine whether the 3D digital asset, including a colliadable mesh, is drawn on a culling mask of a camera in the 3D environment. Thereafter, a line is drawn between the camera and the 3D digital asset using ray casting techniques to determine whether the line collides with the collidable mesh. When the line collides, a proportion of the 3D digital asset on a graphical user interface of the client computer is calculated to obtain a percentage of the graphical user interface, using a screen bounding function of the 3D engine, that is covered by the 3D digital asset. Thereafter, data, including a time period associated with the percentage covered by the graphical user interface, related to user interaction with the 3D digital asset is generated and transmitted to a server.