Function lerp2

lerp2(
    a1: number,
    b1: number,
    a2: number,
    b2: number,
    s: number,
    t: number,
): number
Bilinear interpolation between a1, b1, a2 and b2 based on s and t, where s and t are numbers between 0.0 and 1.0.

The calculation is as follows: a1 and b1 are interpolated based on s to give p, a2 and b2 are interpolated based on s to give q, and then the final result is obtained by interpolating p and q based on t.

The result will be equal to a1 when both s and t is 0.0, equal to a2 when s is 0.0 and t is 1.0, equal to b1 when s is 1.0 and t is 0.0, and equal to b2 when both s and t is 1.0
Parameters
- a1: number
  the first start value - a floating point number
- b1: number
  the first end value - a floating point number
- a2: number
  the second start value - a floating point number
- b2: number
  the second end value - a floating point number
- s: number
  a floating point number in the interval [0.0, 1.0]
- t: number
  a floating point number in the interval [0.0, 1.0]
Returns number
a value between a1, b1, a2 and b2
- Defined in maths.ts:126