Sylphis3D is written mostly in C/C++.
Across all C/C++ projects on Ohloh, 20% of all source code lines are comments. For Sylphis3D, this figure is 30%.
This high number of comments puts Sylphis3D among the highest one-third of all C/C++ projects on Ohloh.
A high number of comments might indicate that the code is well-documented and organized, and could be a sign of a helpful and disciplined development team.