1. In a digital medium environment, a method implemented by at least one computing device, the method comprising: receiving, by the at least one computing device, three-dimensional digital content having a three-dimensional mesh of a plurality of vertices, each said vertex including a definition of a characteristic of the three-dimensional content; forming, by the at least one computing device, a plurality of wedges, each said wedge formed using a combination of said vertices; transforming, by the at least one computing device, the definition of the characteristic for each said vertex from a floating point representation to a fixed point representation, the fixed point representation including a plurality of values that have different respective amounts of significance in defining the characteristic; indexing, by the at least one computing device, the plurality of values of the fixed point representation of the definition of the characteristic, the indexing based on the different respective amounts of significance, the indexing based at least in part on the formed plurality of wedges by ordering the plurality of wedges according to a combined amount of the significance of the values of the fixed point representations of the combination of said vertices that form respective said wedges; and controlling, by the at least one computing device, output of the three dimensional digital content based on the indexed plurality of values.