I dont know, just downloaded and compiled the GLQuake code, and wondered that i had no Mesh Interpolation.
Back in 2007 when making IS Built Test, i had Interpolation, i used GLQuake.
yes, from the q1source.zip i think (after i got it to work when downloading masm etc.)
I just saw some hints like "Phoenix Interpolation ..." and havnt found anything. This means i dont even know if the interpolation was official or custom made... im abit tired now.
thanks in advance