Enum rapier3d::dynamics::SpringModel [−][src]
pub enum SpringModel { Disabled, VelocityBased, AccelerationBased, ForceBased, }
Expand description
The spring-like model used for constraints resolution.
Variants
No equation is solved.
The solved spring-like equation is:
delta_velocity(t + dt) = stiffness / dt * (target_pos - pos(t)) + damping * (target_vel - vel(t))
Here the stiffness
is the ratio of position error to be solved at each timestep (like
a velocity-based ERP), and the damping
is the ratio of velocity error to be solved at
each timestep.
The solved spring-like equation is:
acceleration(t + dt) = stiffness * (target_pos - pos(t)) + damping * (target_vel - vel(t))
The solved spring-like equation is:
force(t + dt) = stiffness * (target_pos - pos(t + dt)) + damping * (target_vel - vel(t + dt))
Implementations
impl SpringModel
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impl SpringModel
[src]pub fn combine_coefficients(
self,
dt: Real,
stiffness: Real,
damping: Real
) -> (Real, Real, Real, bool)
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pub fn combine_coefficients(
self,
dt: Real,
stiffness: Real,
damping: Real
) -> (Real, Real, Real, bool)
[src]Combines the coefficients used for solving the spring equation.
Returns the new coefficients (stiffness, damping, inv_lhs_scale, keep_inv_lhs) coefficients for the equivalent impulse-based equation. These new coefficients must be used in the following way:
rhs = (stiffness * pos_err + damping * vel_err) / gamma
.new_inv_lhs = gamma * if keep_inv_lhs { inv_lhs } else { 1.0 }
. Note that the returnedgamma
will be zero if bothstiffness
anddamping
are zero.
Trait Implementations
impl Clone for SpringModel
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impl Clone for SpringModel
[src]fn clone(&self) -> SpringModel
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fn clone(&self) -> SpringModel
[src]Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
fn clone_from(&mut self, source: &Self)
1.0.0[src]Performs copy-assignment from source
. Read more
impl Debug for SpringModel
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impl Debug for SpringModel
[src]impl Default for SpringModel
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impl Default for SpringModel
[src]impl PartialEq<SpringModel> for SpringModel
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impl PartialEq<SpringModel> for SpringModel
[src]impl Copy for SpringModel
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impl Eq for SpringModel
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impl StructuralEq for SpringModel
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impl StructuralPartialEq for SpringModel
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Auto Trait Implementations
impl RefUnwindSafe for SpringModel
impl Send for SpringModel
impl Sync for SpringModel
impl Unpin for SpringModel
impl UnwindSafe for SpringModel
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> Downcast for T where
T: Any,
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impl<T> Downcast for T where
T: Any,
[src]pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
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pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
[src]Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read more
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
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pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
[src]Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
pub fn as_any(&self) -> &(dyn Any + 'static)
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pub fn as_any(&self) -> &(dyn Any + 'static)
[src]Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
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pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
[src]Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more
impl<T> DowncastSync for T where
T: Any + Send + Sync,
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impl<T> DowncastSync for T where
T: Any + Send + Sync,
[src]impl<T> Pointable for T
impl<T> Pointable for T
impl<T> Same<T> for T
impl<T> Same<T> for T
type Output = T
type Output = T
Should always be Self
impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
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impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
[src]pub fn to_subset(&self) -> Option<SS>
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pub fn to_subset(&self) -> Option<SS>
[src]The inverse inclusion map: attempts to construct self
from the equivalent element of its
superset. Read more
pub fn is_in_subset(&self) -> bool
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pub fn is_in_subset(&self) -> bool
[src]Checks if self
is actually part of its subset T
(and can be converted to it).
pub fn to_subset_unchecked(&self) -> SS
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pub fn to_subset_unchecked(&self) -> SS
[src]Use with care! Same as self.to_subset
but without any property checks. Always succeeds.
pub fn from_subset(element: &SS) -> SP
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pub fn from_subset(element: &SS) -> SP
[src]The inclusion map: converts self
to the equivalent element of its superset.
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
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pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more