The starting value.
The ending value.
The blending factor, clamped to the range [0, 1].
The result of linear interpolation between start and end using alpha.
// Interpolate between two values.
const value1 = 10;
const value2 = 20;
const alpha = 0.5; // Blend halfway between value1 and value2.
const result = lerp(value1, value2, alpha);
// result is 15
// Ensure alpha is clamped to the range [0, 1].
const value3 = 5;
const value4 = 15;
const invalidAlpha = 1.5; // This will be clamped to 1.
const result2 = lerp(value3, value4, invalidAlpha);
// result2 is 15, equivalent to lerp(value3, value4, 1)
Performs linear interpolation (lerp) between two numbers based on a blending factor.