Fail parsing material

[emoon]

I have a material that looks like this

newmtl lambert2SG
illum 4
Kd 0.00 0.00 0.00
Ka 0.00 0.00 0.00
Tf 1.00 1.00 1.00
Ni 1.00
newmtl lambert3SG
illum 4
Kd 0.00 0.00 0.04
Ka 0.00 0.00 0.00
Tf 1.00 1.00 1.00
Ni 1.00

And the parser fails directly because it doesn't know about ilum 4 it would be nicer if the parse could skip things it doesn't know about instead of throwing an Error directly