This is a prime example of how grass should not be done in games, 11 000 Polys at highest LOD level
The correct implementation should be using flat faces with m.pbrmetalmasked, but there is a bug (that Trainz devs are refusing to fix) where using certain Materials at Ultra Shader Setting causes incorrect color rendering,
which forced me to use m.pbrmetal that doesnt support Opacity Masking
One LOD is included, but dont overuse this spline asset too much to avoid FPS drops