Function glm::builtin::smoothstep

pub fn smoothstep<F: BaseFloat, T: GenFloat<F>>(edge0: T, edge1: T, x: T) -> T

Returns 0.0 if x ≤ edge0 and 1.0 if x ≥ edge1 and performs smooth Hermite interpolation between 0 and 1 when edge0 < x < edge1.

This is useful in cases where you would want a threshold function with a smooth transition.

Results are undefined if edge0 ≥ edge1.

Example

use glm::{ smoothstep, dvec2 };

assert_eq!(smoothstep(0f32, 1., -1.), 0.);
let e0 = dvec2(0., -100.);
let e1 = dvec2(1., 100.);
let v = dvec2(1., 50.);
assert_eq!(smoothstep(e0, e1, v), dvec2(1., 0.84375));