add blank material files

valve/pbr/halflife.wad/+WATERF/+WATERF.mat

@@ -0,0 +1,40 @@
+
+{
+"for" "+0WATERF"
+//"basecolor_map" "+0WATERF.png"
+//"normal_map" "+0WATERF_normal.png"
+//"metal_map" "+0WATERF_metal.png"
+//"roughness_map" "+0WATERF_roughness.png"
+}
+
+{
+"for" "+1WATERF"
+//"basecolor_map" "+1WATERF.png"
+//"normal_map" "+1WATERF_normal.png"
+//"metal_map" "+1WATERF_metal.png"
+//"roughness_map" "+1WATERF_roughness.png"
+}
+
+{
+"for" "+2WATERF"
+//"basecolor_map" "+2WATERF.png"
+//"normal_map" "+2WATERF_normal.png"
+//"metal_map" "+2WATERF_metal.png"
+//"roughness_map" "+2WATERF_roughness.png"
+}
+
+{
+"for" "+3WATERF"
+//"basecolor_map" "+3WATERF.png"
+//"normal_map" "+3WATERF_normal.png"
+//"metal_map" "+3WATERF_metal.png"
+//"roughness_map" "+3WATERF_roughness.png"
+}
+
+{
+"for" "+4WATERF"
+//"basecolor_map" "+4WATERF.png"
+//"normal_map" "+4WATERF_normal.png"
+//"metal_map" "+4WATERF_metal.png"
+//"roughness_map" "+4WATERF_roughness.png"
+}