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ADAMK / SDL-Tutorial-3DWorld-0.33 / share / example.mtl 
newmtl flatwhite
Ka  0.5000  0.5000  0.5000
Kd  1.0000  1.0000  1.0000
illum 1

newmtl shinyred
Ka  0.1985  0.0000  0.0000
Kd  0.5921  0.0167  0.0000
Ks  0.5973  0.2083  0.2083
illum 2
Ns 100.2235

newmtl clearblue
Ka  0.0394  0.0394  0.3300
Kd  0.1420  0.1420  0.9500
illum 1
Tr 0.4300