Can't using picking while in isometric projection

[fesoliveira014]

No description provided.

[fesoliveira014]

Got this to partially work. The problem was caused due to the way rays should be created in different projections: when in perspective projection, the origin of a ray is fixed as the camera position, while it's direction is defined by the vector (origin - unprojected mouse position); when in orthogonal (or isometric in our case) projection, the origin is defined by the unprojected mouse position, while the direction is the difference between the origin and the "end", which is the mouse position, (x,y), unprojected on the far side of the depth buffer, in this case, -1. Thus, for an isometric projection, the ray is defined as (unproject(x,y,0), unproject(x,y,-1) - unproject(x,y,0)).