Bake Streamlines to Splines–Button for converting the currently shown Streamline preview (either Velocity Streamlines or Force Streamlines) into native 3ds Max splines. The baked splines can be rendered like any regular 3ds Max spline - through enabling the rendering in the Rendering rollout of the spline settings or via applying a Hair and Fur modifier over the spline.
Auto Bake | autoBakeStreamlineCurvesOnPreviewChange –Enables automatic Streamlines to Splines baking , on any change in the Streamlines Preview. While the Auto Bake option is enabled you don't have to press the Bake Streamlines button in order for scene changes to be applied to the splines and changing the timeline frame will update the baked splines. This allows for rendering animations when using the Hair and Fur modifier over the spline.
