i cant make it less grainy and it also looks pretty crappy...
any ideas to better that light fog coming from the box? (it has to look like something incredibly powerful just teleported inside it...)

also if i take another snapshot... Youll see the light actually goes brighter towards the end of the effect (wich is undesired and tried to avoid using quadratic decay but to no avail.... i want it the other way more light inside the box...))