pub fn mount_mat(
computed_skeleton: &ComputedBirdMediumSkeleton,
skeleton: &BirdMediumSkeleton,
) -> (Mat4<f32>, Quaternion<f32>)
pub fn mount_mat(
computed_skeleton: &ComputedBirdMediumSkeleton,
skeleton: &BirdMediumSkeleton,
) -> (Mat4<f32>, Quaternion<f32>)