transparence {FLOAT MIN, FLOAT MAX//this goes under finish
refraction_blur {FLOAT MIN, FLOAT MAX PATTERN}
refraction_samples INTEGER
multiplicative, additive, etc. were removed for now, I am working on
getting them to work
properly. For now, the filter and transmit from pigment are used.
pigment {}//an optional pigment, if present, this is used for
transparence calculations
}
