We use green chemistries to process the material to add additional functionalities, whether that be waterproofness or just aesthetic properties like color and different patterning.
That's supported by evidence which suggests that the neural patterning involved in generating a hiccup is almost identical to that responsible for respiration in amphibians.
We do this with the materials, then the materials do the hard work of the fine patterning, rather than pushing the projection technology to its limits and beyond.
Predators themselves use this too - leopards have high-contrast disruptive patterning which allows them to better blend into shadowy bushes and tall grass to avoid detection by their prey.