What settings for brush fade dia same and another to grow diameter ?

[Merlin3]

Hi,

I need to do two separate brush actions.

Pshop CS6

1. have the brush fade but diameter stays same.

2. have brush start at a certain diameter and increase diameter to a maximum size and fade as it does so.

so as to create exhaust plumes from aircraft exhaust.

I find shape> fade but it gets narrower and becomes a point.

Merlin3

[davescm]

1. In the brush panel Set Transfer - Flow to Fade

2. Either use a tablet-pen and set shape dynamics to pen pressure and increase pressure as you draw
or
   Set shape dynamics to fade and draw the stroke backwards

Dave

[Merlin3]

Hi,

drawing backwards to try and end up where I want to be coming out from is the tricky thing and alien to normal practice.

Its ending up too small by the time I get there.

I need to start with a diameter I know fits the exhaust port then draw and have it grow and fade.

Surprised Adobe havent got it fading larger, and expect us to draw backwards, I cant get control of the curve drawing backwards, always find I draw best left to right, like reading.

I also dont have a pen.

Steve