static particles (hair), colourband and emit channel


i wanted only the tips of my hair to be able to glow, so i made a texture and added it as an emit map for the strands, however

wither the whole hair is emiting, or none, how can i only make that the tips of it glow while the rest dont?

ok i figured it out, for teh emit channel, you have to turn noRGB on, otherwise it doesnt work