I am trying to create the tractor beam effect from Star Trek. I applied an emission shader with a noise texture as the factor and set the scale on the x channel of the texture coordinate to 0. That got me close. I thought if I applied this material to a cylinder then scaled one end of it down I would be done. However I get the following effect.
Can I adjust the coordinates so the rays come together at the top? Is there a better way to get this effect? I want to use it in an animation which is why I used the noise texture. By animating the texture coordinates I can get the rotating beam effect you see in the series.