FumeFX supports various Maya Deformations that can affect FumeFX. This tool gives artists lots of flexibility for post - simulation adjustments. Because Space Warps can significantly distort FumeFX volume, supersampling is used to lessen the effect of artifacts.
Supersample Min - Minimum number of samples.
Supersample Max - Maximum number of samples.
Auto Scale Density - Rendering output can be affected due to the volume change caused by Space Warp distortion. This option can keep similar rendering output when Render Warps are used.
Viewport Degrade - Because Render Warps require lots of computational power, you might want to use lower quality for Viewport.