A system includes a first scanner comprising an inflatable membrane configured to be inflated with a medium to conform an exterior surface of the inflatable membrane to an interior shape of a cavity, the medium attenuating, at a first rate per unit length, light having a first optical wavelength, and at a second rate per unit length, light having a second optical wavelength. The system comprises an emitter and detector configured to generate and receive light from the interior surface of the inflatable membrane, respectively. A processor is configured to generate a first electronic representation of the interior shape and a second electronic representation of a second shape based on the received light. A design computer is configured to combine the first and second electronic representation into a combined electronic representation corresponding to at least a portion of the interior shape based on at least one or more native references.
