Called during physics processing, allowing you to read and safely modify the simulation state for the object. By default, it works in addition to the usual physics behavior, but the [member custom_integrator] property allows you to disable the default behavior and do fully custom force integration for a body.
Damps the body's rotation. By default, the body will use the [b]Default Angular Damp[/b] in [b]Project > Project Settings > Physics > 3d[/b] or any value override set by an [Area3D] the body is in. Depending on [member angular_damp_mode], you can set [member angular_damp] to be added to or to replace the body's damping value.
See [member ProjectSettings.physics/3d/default_angular_damp] for more details about damping.
[b]Note:[/b] Even with [member bounce] set to [code]1.0[/code], some energy will be lost over time due to linear and angular damping. To have a [PhysicalBone3D] that preserves all its energy over time, set [member bounce] to [code]1.0[/code], [member linear_damp_mode] to [constant DAMP_MODE_REPLACE], [member linear_damp] to [code]0.0[/code], [member angular_damp_mode] to [constant DAMP_MODE_REPLACE], and [member angular_damp] to [code]0.0[/code].
If [code]true[/code], the body is deactivated when there is no movement, so it will not take part in the simulation until it is awakened by an external force.
If [code]true[/code], internal force integration will be disabled (like gravity or air friction) for this body. Other than collision response, the body will only move as determined by the [method _integrate_forces] function, if defined.
This is multiplied by the global 3D gravity setting found in [b]Project > Project Settings > Physics > 3d[/b] to produce the body's gravity. For example, a value of 1 will be normal gravity, 2 will apply double gravity, and 0.5 will apply half gravity to this object.
Damps the body's movement. By default, the body will use the [b]Default Linear Damp[/b] in [b]Project > Project Settings > Physics > 3d[/b] or any value override set by an [Area3D] the body is in. Depending on [member linear_damp_mode], you can set [member linear_damp] to be added to or to replace the body's damping value.
See [member ProjectSettings.physics/3d/default_linear_damp] for more details about damping.
The body's linear velocity in units per second. Can be used sporadically, but [b]don't set this every frame[/b], because physics may run in another thread and runs at a different granularity. Use [method _integrate_forces] as your process loop for precise control of the body state.
