add blank material files

valve/pbr/halflife.wad/-TNNL_W12A/-TNNL_W12A.mat

@@ -0,0 +1,24 @@
+
+{
+"for" "-0TNNL_W12A"
+//"basecolor_map" "-0TNNL_W12A.png"
+//"normal_map" "-0TNNL_W12A_normal.png"
+//"metal_map" "-0TNNL_W12A_metal.png"
+//"roughness_map" "-0TNNL_W12A_roughness.png"
+}
+
+{
+"for" "-1TNNL_W12A"
+//"basecolor_map" "-1TNNL_W12A.png"
+//"normal_map" "-1TNNL_W12A_normal.png"
+//"metal_map" "-1TNNL_W12A_metal.png"
+//"roughness_map" "-1TNNL_W12A_roughness.png"
+}
+
+{
+"for" "-2TNNL_W12A"
+//"basecolor_map" "-2TNNL_W12A.png"
+//"normal_map" "-2TNNL_W12A_normal.png"
+//"metal_map" "-2TNNL_W12A_metal.png"
+//"roughness_map" "-2TNNL_W12A_roughness.png"
+}