variable number of textures?

src/vulkan/mod.rs

@@ -92,8 +92,7 @@ pub struct Mesh<V> {
 #[derive(Debug, Clone)]
 pub struct MeshHandle {
     pub index: usize,
-    pub diffuse_handle: TextureHandle,
-    pub normal_handle: Option<TextureHandle>,
+    pub textures: Vec<TextureHandle>,
     pub original_path: Option<String>,
     pub pipeline_index: usize
 }