We have some examples on the wiki fwiw Halo 4 here http://wiki.polycount.com/wiki/Modular_environments Uncharted 3 examples https://polycount.com/discussion/98332/uncharted-3-environment-art-dump-anthony-vaccaro/p1
"For reference, the vertex color data on a 500 triangle mesh is roughly equivalent to adding a 64x64 3 channel dxt1 texture" Could you explain the calculation for this estimate ?