invlerp

Since	18.5

float  invlerp(float a, float min, float max)

<vector> invlerp(<vector>a, <vector>min, <vector>max)

Returns the amount to mix min and max to generate the input value a. This is the inverse of the lerp function.

The vector version operates component-wise, so the resulting vector will be the independent mixing amount for each dimension.

If a is outside the range min to max, values greater than 1 or less than 0 will be produced.

If min and max are equal, the mixing value is 0.5.