[Admins]

Thanks for the particle engine docu, I think I will combine them and add some stuff to complete the documentation. I will need to explain how the emitter works.
PS: addemitmodifier - modifies the "default" emitter.particle, can be used if you want to emit bigger particles each time (zoom), or emit the particles in a ring (angle).
addglobalmodifier - is modifying all particles, can be used for effects like graviation or if you want to change the angle, color, spin etc. of all particles at once using an impulse
spin - for letting particles rotate automatically and changing the rotation speed
checkbelowterrain - destroys the particle if it falls below the terrain, which means the z value is below the terrain height (or 0 on flat maps), similar to projectiles
clippingbox - {xd1,yd1,zd1, xd2,yd2,zd2} - defines a box around the emitter, particles are automatically destroyed when they leave that box