Gravity physics is the adjustment of a few physics parameters based on the angle of the glute or breast joint relative to ground, i.e. relative to the direction of gravity. In addition, the custom gravity force adds a different amount of weight to the joint in different poses.
Note: The Gravity x/y/z settings in Scene Misc are not taken into account. The plugin assumes the default -9.81 m/s² gravity in the y direction.
Adjusted Physics Parameters
BootyMagic
| Physics Parameter |
Description |
| Rotation Spring |
Spring is at its base value when upright, e.g. when the person is standing up. When leaning back, left, right or when upside down, spring is reduced. When leaning forward (gravity applies towards the hip), spring is increased. |
| In/Out Spring |
In/Out Spring decreases when leaning forward or back. |
| Up/Down Angle Target |
Up/Down Angle Target deacreases when upright and increases when upside down. |
| Left/Right Angle Target |
Left/Right Angle Target pulls the glutes sideways towards the direction of gravity. |
TittyMagic
| Physics Parameter |
Description |
| Rotation Damper |
Damper increases when leaning forward or back, or when the breast rotates sideways inward. |
| Right/Left Spring |
Right/Left Spring increases when leaning to the side, this is to prevent weird behaviour (too loose and messes up morphing) in that angle. |
| In/Out Spring |
In/Out Spring decreases when leaning forward or back. |
| Up/Down Angle Target |
Up/Down Angle Target negative when upright, causing breasts to get pulled down more heavily, and zero when upside down. |
| Left/Right Angle Target |
Left/Right Angle Target pulls the breasts sideways towards the direction of gravity. |
Directional Force Physics
The dynamic adjustments of gravity physics are augmented with directional force physics which adjusts a few parameters based on the joint’s depth. This is not configurable in the plugin UI, but there are multipliers that are exposed to triggers which can be used to adjust the magnitude of the effect. You can see the effect in the physics parameter’s view in the Physics tab when the joint is moving.
| Triggerable Parameter |
Description |
Force Physics Base Multiplier |
Combined multiplier for force physics. |
Force Physics Depth In |
Multiplier when the joint is pushed in |
Force Physics Depth Out |
Multiplier when the joint is pulled out. |
| Physics Parameter |
Description |
| Center of Gravity |
Center of gravity increases slightly when the joint is pulled out, and decreases slightly when the joint is pushed in. |
| In/Out Damper |
In/out damper reduces when the joint is pulled or pushed. The effect is greater the higher the softness. |