Fix

pipeline.py

@@ -367,14 +367,14 @@ class Zero123PlusPipeline(diffusers.StableDiffusionPipeline):
         global_embeds = global_embeds.unsqueeze(-2)
         
         if prompt_embeds is None:
-            prompt_embeds, negative_prompt_embeds = self.encode_prompt(
+            prompt_embeds, _ = self.encode_prompt(
                 prompt,
                 self.device,
                 num_images_per_prompt,
                 False,
             )
         ramp = global_embeds.new_tensor(self.config.ramping_coefficients).unsqueeze(-1)
-        encoder_hidden_states = torch.cat([prompt_embeds, torch.zeros(prompt_embeds.shape, device=prompt_embeds.device)]) + global_embeds * ramp
+        encoder_hidden_states = prompt_embeds + global_embeds * ramp
         cak = dict(cond_lat=cond_lat)
         if hasattr(self.unet, "controlnet"):
             cak['control_depth'] = depth_image