Luna::hermite

Float4 hermite(const Float4 &v1, const Float4 &t1, const Float4 &v2, const Float4 &t2, f32 t)

Performs Hermite spline interpolation.

This function performs the following operations:

[Float4](struct_luna_1_1_float4.md) result;
[f32](group___runtime_base_type_1gad34d88453d37b65a09797bad37f2f527.md) t2 = t * t;
[f32](group___runtime_base_type_1gad34d88453d37b65a09797bad37f2f527.md) t3 = t2 * t;
return  v1 * (2 * t3 - 3 * t2 + 1) +
        t1 * (t3 - 2 * t2 + t) +
        v3 * (-2 * t3 + 3 * t2) +
        t2 * (t3 - t2);

Parameters

in v1

The first point of the curve.
in t1

The first tangent of the curve.
in v2

The second point of the curve.
in t2

The second tangent of the curve.
in t

The interpolation weight.

Return value

Returns the interpolation result.