| Overload | Description |
|---|---|
| Merge(IMaskRenderingSurface,BoundingBox) | Merges the top mask into the current mask. The top mask is clipped to current mask. |
| Merge(IMaskRenderingSurface,IMaskRenderingSurface,BoundingBox) | Merges the top mask into the current mask. The top mask is clipped to current mask. |