This relates to Creating Grass Hair Particles. First video He has you create a particle system then set it to spiral. When I do this only a clump of my particles get effected. when he does it all of his get effected. Both settings are the same. But i found i get a similar effect if I switch my Axis setting to either Y or X rather then Z(as he has on his).
My question is What is this setting actually doing?
If I go through the tutorial will i be able to complete it with this setting being different?