Vectorize UV initialization with numpy broadcasting

playscii/art.py

@@ -535,11 +535,7 @@ class Art:
         shape = (layers, self.height, self.width, UV_STRIDE)
         array = np.zeros(shape, dtype=np.float32)
         # default new layer of UVs to "normal" transform
-        uvs = uv_types[UV_NORMAL]
-        for layer in range(layers):
-            for y in range(self.height):
-                for x in range(self.width):
-                    array[layer][y][x] = uvs
+        array[:] = uv_types[UV_NORMAL]
         return array
 
     def is_tile_inside(self, x, y):