Struct BonePose

pub struct BonePose<'a> { /* private fields */ }

A pose of a Bone, referring to it so that many poses can use the same Bone.

A BonePose has a current Transformation which indicates how it is posed; the Bone contains mapping matrices for going from bone-parent space to bone space, and for going from mesh space to bone space

Implementations

impl<'a> BonePose<'a>

pub fn new(bone: &'a Bone) -> Self

Create a new pose of a bone

pub fn transformation_reset(&mut self)

Reset the pose transformation to that of the bone in the skeleton

pub fn set_transformation(&mut self, transform: Transformation)

Set a new pose transformation for the posed bone

pub fn derive_animation( &mut self, is_root: bool, parent_animated_pbtm: &Mat4, ) -> &Mat4

Derive the animation matrices given a parent animated-posed-bone-to-mesh matrix

If there is no parent (is_root true) then the animated bone-to-mesh is just the posed-bone-to-parent transformation

If there is a parent then its pose transformation must be preapplied to this; when this animated_btm is applied to a vector (in this local bone space) one must first generate the vector in the parent-bone space (by applying pbtp) and then apply parent pbtm to generate model space

Vectors in the model mesh space can be multiplied by the bones mtb matrix to get a vector in this local bone space, to which the animated_btm can be applied to get a model space vector. Hence multiplying animated_btm and bone.mtb together.

pub fn borrow_animated_mtm(&self) -> &Mat4

Borrow the animated mesh-to-model-space matrix

This assumes it has been derived

Trait Implementations

impl<'a> Display for BonePose<'a>

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

Formats the value using the given formatter.

impl<'a> DefaultIndentedDisplay for BonePose<'a>