Function minterpolate::catmull_rom_spline_interpolate

pub fn catmull_rom_spline_interpolate<T>(
    input: f32,
    inputs: &[f32],
    outputs: &[T],
    normalize: bool
) -> Twhere
    T: InterpolationPrimitive + Clone,

Catmull-Rom spline interpolation

f(t) = (2d^3 + 3d^2 + 1)p0 + (d^3 - 2d^2 + d)m0 + (-2d^3 + 3d^2)p1 + (d^3 - d^2)m1 d = (t - t0) / (t1 - t0) p0 = position at left keyframe p1 = position at right keyframe k = left keyframe index k+1 = right keyframe index m0 = (p_k+1 - p_k-1) / (t_k+1 - t_k-1) m1 = (p_k+2 - p_k) / (t_k+2 - t_k) t0 = input at left keyframe t1 = input at right keyframe

Parameters:

• input: the input value to the function
• inputs: list of discrete input values for each keyframe
• outputs: list of output values to interpolate between, for catmull rom spline interpolation this should be the size of inputs + 2 [ in_tangent_0, position_0, position_1, .., position_n, out_tangent_n ]
• normalize: if true, normalize the interpolated value before returning it