byte size of simplified object, given object size and distance

Show[Graphics3D[{
    PolygonColor,ConvertToMesh[pa],
    VptDepColor,ConvertToMesh[pb],
    SimpleImposterColor,ConvertToMesh[pi],
    MeshedImposterColor,ConvertToMesh[pc],
    IwDColor,ConvertToMesh[pd],
    LDIColor,ConvertToMesh[pe],
    IncrementalColor,ConvertToMesh[pf]

},
Lighting->False,AspectRatio->Automatic,
AxesLabel->{"log object size","log distance","-Log size"},
ViewPoint->{-2.456, -1.935, 1.294}
,PlotRange->{-2,-7},
Axes->True,BoxRatios->{1,1,.5}]]