add blank material files

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

@@ -0,0 +1,16 @@
+
+{
+"for" "-0sandyBrick"
+//"basecolor_map" "-0sandyBrick.png"
+//"normal_map" "-0sandyBrick_normal.png"
+//"metal_map" "-0sandyBrick_metal.png"
+//"roughness_map" "-0sandyBrick_roughness.png"
+}
+
+{
+"for" "-1sandyBrick"
+//"basecolor_map" "-1sandyBrick.png"
+//"normal_map" "-1sandyBrick_normal.png"
+//"metal_map" "-1sandyBrick_metal.png"
+//"roughness_map" "-1sandyBrick_roughness.png"
+}