diff --git a/vr180_matting/sam2_wrapper.py b/vr180_matting/sam2_wrapper.py
index 320da35..f393c82 100644
--- a/vr180_matting/sam2_wrapper.py
+++ b/vr180_matting/sam2_wrapper.py
@@ -67,10 +67,12 @@ class SAM2VideoMatting:
             
             # Enable memory optimizations
             if self.memory_offload:
-                self.predictor.fill_hole_area = 8
+                # SAM2 has different memory optimization options
+                pass  # Memory offloading is handled by SAM2 internally
             
             if self.fp16 and self.device == "cuda":
-                self.predictor.model.half()
+                # SAM2 handles FP16 internally, no need to manually convert
+                pass
                 
         except Exception as e:
             raise RuntimeError(f"Failed to load SAM2 model: {e}")