nalgebra_glm
pub fn trunc<N: Real, D: Dimension>(x: &TVec<N, D>) -> TVec<N, D> where DefaultAllocator: Alloc<N, D>,
Returns a value equal to the nearest integer to x whose absolute value is not larger than the absolute value of x.
x
let vec = glm::vec3(-1.5, 0.5, 2.8); assert_eq!(glm::vec3(-1.0, 0.0, 2.0), glm::trunc(&vec));
ceil
floor
fract
round