Update pipeline.py

pipeline.py

@@ -343,9 +343,11 @@ class Zero123PlusPipeline(diffusers.StableDiffusionPipeline):
         if image is None:
             raise ValueError("Inputting embeddings not supported for this pipeline. Please pass an image.")
         assert not isinstance(image, torch.Tensor)
+        image = to_rgb_image(image)
         image_1 = self.feature_extractor_vae(images=image, return_tensors="pt").pixel_values
         image_2 = self.feature_extractor_clip(images=image, return_tensors="pt").pixel_values
         if depth_image is not None and hasattr(self.unet, "controlnet"):
+            depth_image = to_rgb_image(depth_image)
             depth_image = self.depth_transforms_multi(depth_image).to(
                 device=self.unet.controlnet.device, dtype=self.unet.controlnet.dtype
             )