Struct b3ManifoldPoint 

#[repr(C)]
pub struct b3ManifoldPoint {
    pub anchorA: b3Vec3,
    pub anchorB: b3Vec3,
    pub separation: f32,
    pub baseSeparation: f32,
    pub normalImpulse: f32,
    pub totalNormalImpulse: f32,
    pub normalVelocity: f32,
    pub featureId: u32,
    pub triangleIndex: c_int,
    pub persisted: bool,
}

A manifold point is a contact point belonging to a contact manifold. It holds details related to the geometry and dynamics of the contact points. Box3D uses speculative collision so some contact points may be separated. You may use the maxNormalImpulse to determine if there was an interaction during the time step.

Fields

anchorA: b3Vec3

Location of the contact point relative to the bodyA center of mass in world space.

anchorB: b3Vec3

Location of the contact point relative to the bodyB center of mass in world space.

separation: f32

The separation of the contact point, negative if penetrating

baseSeparation: f32

Cached separation used for contact recycling

normalImpulse: f32

The impulse along the manifold normal vector. Since Box3D uses sub-stepping, this is result from the final sub-step.

totalNormalImpulse: f32

The total normal impulse applied during sub-stepping. This is important to identify speculative contact points that had an interaction in the time step.

normalVelocity: f32

Relative normal velocity pre-solve. Used for hit events. If the normal impulse is zero then there was no hit. Negative means shapes are approaching.

featureId: u32

Local point for matching Uniquely identifies a contact point between two shapes

triangleIndex: c_int

Triangle index if one of the shapes is a mesh or height field

persisted: bool

Did this contact point exist in the previous step?

Trait Implementations

impl Clone for b3ManifoldPoint

fn clone(&self) -> b3ManifoldPoint

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for b3ManifoldPoint

impl Debug for b3ManifoldPoint

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.