[JASS] AddSpellEffect vs AddSpecialEffect

[skullzilla]

What is the difference between these two?

 

[raid1000]

im not a jass vizz but maybe addspecialeffect adds a special effect to a point or a unit(like auras or buffs and such) and addspelleffect is like casting a spell on a unit
but i could be wrong ^^

 

[Element of Water]

I think AddSpellEffectById take a spell's rawcode, the type of effect (self effect, target effect, whatever), the x and y coordinates and puts the the effect of the spell of the given type at the target coordinates.

AddSpecialEffect takes a model file directly and creates an effect from that model at the target coordinates.