add blank material files

valve/pbr/halflife.wad/-FIFTIES_F03/-FIFTIES_F03.mat

@@ -0,0 +1,24 @@
+
+{
+"for" "-0FIFTIES_F03"
+//"basecolor_map" "-0FIFTIES_F03.png"
+//"normal_map" "-0FIFTIES_F03_normal.png"
+//"metal_map" "-0FIFTIES_F03_metal.png"
+//"roughness_map" "-0FIFTIES_F03_roughness.png"
+}
+
+{
+"for" "-1FIFTIES_F03"
+//"basecolor_map" "-1FIFTIES_F03.png"
+//"normal_map" "-1FIFTIES_F03_normal.png"
+//"metal_map" "-1FIFTIES_F03_metal.png"
+//"roughness_map" "-1FIFTIES_F03_roughness.png"
+}
+
+{
+"for" "-2FIFTIES_F03"
+//"basecolor_map" "-2FIFTIES_F03.png"
+//"normal_map" "-2FIFTIES_F03_normal.png"
+//"metal_map" "-2FIFTIES_F03_metal.png"
+//"roughness_map" "-2FIFTIES_F03_roughness.png"
+}