
I noticed that the MaterialManager lost some functions. May I know why?
Actually there's only a default blender, which give as result a multply between material factors:
Bounciness = a.bounciness * b.bounciness,
KineticFriction = a.kineticFriction * b.kineticFriction,
StaticFriction = a.staticFriction * b.staticFriction
but with an older version (I don't know when the changes has been done) I can select how to blend each properties using PropertyBlendMethod (Average, Max, Min, BiasLow, BiasHigh).