add blank material files

cstrike/pbr/itsitaly.wad/-brockWall/-brockWall.mat

@@ -0,0 +1,24 @@
+
+{
+"for" "-0brockWall"
+//"basecolor_map" "-0brockWall.png"
+//"normal_map" "-0brockWall_normal.png"
+//"metal_map" "-0brockWall_metal.png"
+//"roughness_map" "-0brockWall_roughness.png"
+}
+
+{
+"for" "-1brockWall"
+//"basecolor_map" "-1brockWall.png"
+//"normal_map" "-1brockWall_normal.png"
+//"metal_map" "-1brockWall_metal.png"
+//"roughness_map" "-1brockWall_roughness.png"
+}
+
+{
+"for" "-2brockWall"
+//"basecolor_map" "-2brockWall.png"
+//"normal_map" "-2brockWall_normal.png"
+//"metal_map" "-2brockWall_metal.png"
+//"roughness_map" "-2brockWall_roughness.png"
+}