//  'M' metal
//  'V' ventillation
//  'D' dirt
//  'S' slosh liquid 
//  'T' tile
//  'G' grate (Concrete is the default)
//  'W' wood
//  'P' computer
//  'Y' glass
//  'N' snow
//  'X' grass

M {antenna
M {F15undertrans
M {RAIL1C
W {snowtree4
W {snowtree5
Y ~FIFTIES_LGT2
Y ~FIFTS_LGHT01
M ~LAB1_COMP8B
Y ~LIGHT3A
M aelev_up
M AMMO01
M AMMO02
M AMMO03
M AMMO04
P CLOCK2A
N cnc_tiretr
N cnc_tiretrtr1
M Core_Urban_090
N Core_Urban_120
Y Core_Urban_198
M CRETE2_FLR03C
W door_1
M door_3
M ELEV1_TRIM
M ELEV2_DR
M EXIT1
M file1_sp
M file1b_sp
M file2_sp
M GAR002
M GENERIC45
M GENERIC46
M GENERIC105
M GENERIC105A
M generic113
Y GLASS_BRIGHT
M lab_door1_1
M of_crate03a
M of_crate03b
M of_crate03c
M of_crate03d
M of_crate03top
V pipe4
M sign19
N snow
N snw_conc_trm
N snw_grnd_1
M sphinx_garage_1
W sphinx_sign_1
W sphinx_sign_3
N sphinx_snow_1
M step_1
G ventlab1
Y window_1
W wood_int9
M XCRATE10A
M XCRATE10B
M XCRATE10C
M XCRATE10D
