Crate vec_2_10_10_10 [−] [src]
This is 32-bit 4-dimensional vector, where the first dimension has 2 bits, and the last 3 dimensions have 10 bits each. It is useful for representing color with an alpha, where the alpha does not require much precision.
It is compatible with GL_UNSIGNED_INT_2_10_10_10_REV
in OpenGL.
Example
extern crate vec_2_10_10_10; fn main() { let value = vec_2_10_10_10::Vector::new(0.444, 0.555, 0.666, 0.2); assert!(approx_equal(value.x(), 0.444)); assert!(approx_equal(value.y(), 0.555)); assert!(approx_equal(value.z(), 0.666)); // 2 bits means only possible values are 0, 0.3(3), 0.6(6) and 1. assert!(approx_equal(value.w(), 0.333)); } fn approx_equal(a: f32, b: f32) -> bool { const DELTA: f32 = 0.001; a > b - DELTA && a < b + DELTA }
Structs
Vector |
Four dimensional 2-10-10-10 vector. |