added wall

src/shaders/shading.cginc

@@ -13,6 +13,6 @@ vec3 applyLighting(vec3 hitPoint, vec3 view, vec3 normal, uint brick)
     vec3 specular = light_color * pow(max(dot(view, reflect(-_SunDir, normal)), 0.0), 32);
 
     // Combine colors
-    vec3 object_color = _Materials[brick].albedo.rgb;//vec3(0.0, 0.1, 0.5);
+    vec3 object_color = _Materials[brick-1].albedo.rgb;//vec3(0.0, 0.1, 0.5);
     return (ambient + diffuse + specular) * object_color;
 }