Function nalgebra_glm::smoothstep [−][src]
pub fn smoothstep<N: Number>(edge0: N, edge1: N, x: N) -> N
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.
This is equivalent to: let result = clamp((x - edge0) / (edge1 - edge0), 0, 1); return t * t * (3 - 2 * t);
Results are undefined if edge0 >= edge1
.