run sampler in --unconstrained mode (no dataset needed)

app.py

@@ -20,12 +20,14 @@ def generate_motion(prompt: str) -> str:
         "python", "-m", "motion_diffusion_model.sample.generate",
         "--model_path", str(CKPT_PATH),
         "--text_prompt", prompt,
-        "--cuda", "-1",              # -1  =>  CPU
+        "--cuda", "-1",
         "--guidance_param", "7.5",
         "--output_dir", str(out_dir),
-        "--num_samples", "1"
+        "--num_samples", "1",
+        "--unconstrained"          # ← add this line
     ]
 
+
     env = os.environ.copy()
     root = Path(__file__).parent
     repo = root / "motion_diffusion_model"