Fix issue with 3d masks.

Author: comfyanonymous

comfy/utils.py

@@ -853,19 +853,18 @@ def reshape_mask(input_mask, output_shape):
     dims = len(output_shape) - 2
 
     if dims == 1:
-        mask = input_mask
         scale_mode = "linear"
 
     if dims == 2:
-        mask = input_mask.reshape((-1, 1, input_mask.shape[-2], input_mask.shape[-1]))
+        input_mask = input_mask.reshape((-1, 1, input_mask.shape[-2], input_mask.shape[-1]))
         scale_mode = "bilinear"
 
     if dims == 3:
         if len(input_mask.shape) < 5:
-            mask = input_mask.reshape((1, 1, -1, input_mask.shape[-2], input_mask.shape[-1]))
+            input_mask = input_mask.reshape((1, 1, -1, input_mask.shape[-2], input_mask.shape[-1]))
         scale_mode = "trilinear"
 
-    mask = torch.nn.functional.interpolate(mask, size=output_shape[2:], mode=scale_mode)
+    mask = torch.nn.functional.interpolate(input_mask, size=output_shape[2:], mode=scale_mode)
     if mask.shape[1] < output_shape[1]:
         mask = mask.repeat((1, output_shape[1]) + (1,) * dims)[:,:output_shape[1]]
     mask = comfy.utils.repeat_to_batch_size(mask, output_shape[0])