Metaball Object Basic Coord. ObjectObject Properties
Defines how tightly the hull is applied. Higher values mean that the hull is wrapped more tightly around the objects.
Editor Subdivision [0.001..+∞m]
Defines the number of subdivisions that are displayed in the viewport. The subdivision is specified in distance units. This means that you should lower the value to increase the number of subdivisions and mesh-smoothness. Increasing the value will reduce the number of subdivisions. It makes sense to use a high value here (e.g., 40), otherwise the redraw rate may slow down noticeably.
Render Subdivision [0.001..+∞m]
Defines the number of subdivisions that are rendered. The subdivision is specified in distance units. This means that you should lower the value to increase the number of subdivisions and mesh-smoothness. Increasing the value will reduce the number of subdivisions. You should choose a low setting here (e.g., 5), so that the surface is rendered smoothly.
By default, the force of attraction of Metaball spheres to each other is similar to gravity, which has a 1/r^2 relation. You can change this with the Exponential Falloff which, if enabled, has the effect that Metaball attraction occurs at shorter distances, and more abruptly.
Left disabled Accurate Normals option, right enabled.If this option is enabled, internally accurately calculated vertex Normals will be applied that make a more even shading possible in most cases. Note that the Metaball object cannot be deformed because the vertex Normals will then no longer be accurate.