Exposure
Dropdownliste: Lightsetups
Here you can access some predefined settings ( Default, Outdoor clear Sky, Night clear Sky, Indoor, night Indoor).
Film ISO
Film iso should be the ISO number of the film, also known as Film speed. As mentioned above, if this is zero, the "Arbitrary" mode is enabled, and all color scaling is then strictly defined by the value of cm2 factor.
Shutter 1/s
camera shutter is the camera shutter time expressed as fractional seconds, i.e. the value 100 means a camera shutter of 1/100. This value has no effect in "Arbitrary" mode.
F-Stop
f number is the fractional aperture number, i.e. 11 means aperture "f/11". Aperture numbers on cameras go in specific standard series, i.e. f/8, f/11, f/16, f/22 etc. Each of these are refered to as a stop (from the fact that aperture rings on real lenses tend to have physical "clicks" for these values) and each such \stop" represents halving the amount of light hitting the film per increased stop2. It is important to note that this shader doesn't count \stops", but actually wants the f-number for that stop. This value has no effect in \Arbitrary" mode.
Enable Av/Tv Mode
Enable Av/Tv Mode
If we use real photographs for rotoscoping those pictures would be double color corrected and would be to dark or to bright. To accommodate for that Photostudio will calculate a inverse energy value. You now have to put this value into the Output-Amount value of the used map. This value is the Av/Tv constant needed to neutralise the double exposure of real Pictures used for rotoscoping.