add blank material files

valve/pbr/models/p_9mmhandgun.mdl/p_9mmhandgun.mdl.mat

@@ -0,0 +1,32 @@
+
+{
+"for" "#models/p_9mmhandgun/glockback.mdl"
+//"basecolor_map" "glockback.png"
+//"normal_map" "glockback_normal.png"
+//"metal_map" "glockback_metal.png"
+//"roughness_map" "glockback_roughness.png"
+}
+
+{
+"for" "#models/p_9mmhandgun/glockfront.mdl"
+//"basecolor_map" "glockfront.png"
+//"normal_map" "glockfront_normal.png"
+//"metal_map" "glockfront_metal.png"
+//"roughness_map" "glockfront_roughness.png"
+}
+
+{
+"for" "#models/p_9mmhandgun/glockside.mdl"
+//"basecolor_map" "glockside.png"
+//"normal_map" "glockside_normal.png"
+//"metal_map" "glockside_metal.png"
+//"roughness_map" "glockside_roughness.png"
+}
+
+{
+"for" "#models/p_9mmhandgun/glocktop1.mdl"
+//"basecolor_map" "glocktop1.png"
+//"normal_map" "glocktop1_normal.png"
+//"metal_map" "glocktop1_metal.png"
+//"roughness_map" "glocktop1_roughness.png"
+}