3 DEqualizer4 guide LSF 1 2 point solve object tracking strategies

LSF solves can use any combination of the seven degrees of freedom ( tx, ty, tz, rx, ry, rz, focal length) enabled, disabled For this eyeball object track demo we will demonstrate one point and two point solves Many gimbal lock problems, or more accurately rotation channel cross talk issues, are solved by using the Zero CameraPG tool These issues arise because LSF always solves in Global space, not local or child space A three rotation channel object solve requires at least two Survey points When all three LSF rotations are unconstrained to calculate a solve, then the solve will probably not suffer cross talk A two rotation object channel solve only requires a single Survey point But if the camera has any rotations, bad cross talk can occur. But the Zero Cam PG tool usually solves the problem The more trans, rot channels that are enabled for LSF solve, the more Survey points areneeded. When LSF solving translations for an Object, it is also oft