Linepick can especially be speed up by not doing it over hundreds of units. Its true power is short range picking for example to implement moving platforms, check bullet -> target collision (where you only need to pick from the current position to the future one with the bullet radius)
It thought is very bad if you intend to use it for long range "sensors" on an AI and the like ...
It thought is very bad if you intend to use it for long range "sensors" on an AI and the like ...