Lightning effect height problem

[Erkki2]

[SOLVED] Lightning effect height problem

I'm creating a triggered life drain spell. Everything else works, but I'd like the lightning to be displayed correctly also when the spell is cast on flying units. So I do the following:

set casterX = GetUnitX(this.caster)
set targetX = GetUnitX(this.target)
set casterY = GetUnitY(this.caster)
set targetY = GetUnitY(this.target)
set casterZ = GetUnitFlyHeight(this.caster)
set targetZ = GetUnitFlyHeight(this.target)
                
call MoveLightningEx(this.light, true, casterX, casterY, casterZ, targetX, targetY, targetZ)

Still the height is too low.

SOLVED by using ZLibrary.