http://celebrityinc.blogspot.com/200...ay-effect.html
To be honest, there are many different techniques. Each picture take's time to learn, practice, and master the best approach. (Some of us here have practiced for years with celebrity pic's. Vidpro was the first one to put 1+1 together about 7 months ago. From there, the rest of us jumped on the band wagon.)
1st off, Thin clothing meterial only. or Cloth's that "breathe". And the subject can not being wearing a bra. (Wrinkle's, Baggy cloth's, poor light's, low resolution, etc. Can also make the picture impossible.)
Usually I can find details by adjusting lightings. Midtone contrast can reveal contrasting details, lightened shadows will reveal "dark" hidden details, Darken highlights will reveal "light" hidden details.
Never use Auto-levels. Instead Manually due it yourself. When open, a B\W histogram is shown. Slide the Dark triangle until its under the start of the B\W histogram. Slide the white triangle until its under the end of the B\W histogram. Slide the gray triangle between the Dark\White triangle's. Until the maximum detail is revealed.
Sometimes Changing the picture to B\W will reveal detail. Also Unsharp mask set at 1-2 pixels, 0 threashold, and between 25%-100%. I also use Contrast masking plug-ins', and manual levels plug-in with manual Color curve control.
I use photoshop elements. The real good graphic artists use 400$ programs like photoshop CS2.