Camera problem when Theta=Pi/2

[ctsan]

when theta=Pi/2 , phi becomes a fixed number
you can "solve" this by setting theta 1.00001*Pi/2 but you know, it's ugly

[unconed]

This is due to a change in floating point behaviour in Chrome. If you want to fix it, you could cap the theta in the camera controller to e.g. 0.999 * π/2. Should leave enough precision for the angle without being noticeable.