Add downscale ratio to empty ltxv latent. (Comfy-Org#13999)

Author: comfyanonymous

comfy_extras/nodes_lt.py

@@ -77,7 +77,7 @@ def define_schema(cls):
     @classmethod
     def execute(cls, width, height, length, batch_size=1) -> io.NodeOutput:
         latent = torch.zeros([batch_size, 128, ((length - 1) // 8) + 1, height // 32, width // 32], device=comfy.model_management.intermediate_device())
-        return io.NodeOutput({"samples": latent})
+        return io.NodeOutput({"samples": latent, "downscale_ratio_spacial": 32})
 
     generate = execute  # TODO: remove