We use a film that is manufactured in Tokyo Japan specifically for glass projection with multiple layers including light diffusion and forward light scattering properties. This film ranges per application from transparent to translucent to high contract grey. The properties are specific to the visual effect and ambient light conditions with light transmittance ranging from 90%~35% with 30%~90% haze. Operating temperature of 0C-40C with recommended humidity at 80% or lower.
Projection can be front or rear depending on facility capabilities. Rear projected within a controlled light environment is the preferred method.