noises_and_patterns/
pattern.rs

1use crate::prelude::*;
2
3pub mod bricks;
4
5pub trait Pattern {
6
7    fn new() -> Self;
8
9    /// 2D pattern for the given position, returns mask and id
10    fn pattern_2d(&self, p: (FP, FP)) -> (FP, FP);
11
12    /// For setting pattern properties
13    fn set_property(&mut self, name: &str, value: FP);
14
15    /// 2D hash, taken from https://www.shadertoy.com/view/4djSRW
16    #[inline(always)]
17    fn hash21(&self, p: FP2) -> FP {
18        let mut p3 = glm::fract(&FP3::new(p.x * 0.1031, p.y * 0.1031, p.x * 0.1031));
19
20        let dot = glm::dot(&p3, &(FP3::new(p3.y + 33.333, p3.z + 33.333, p3.x + 33.333)));
21
22        p3.x += dot; p3.y += dot; p3.z += dot;
23        ((p3.x + p3.y) * p3.z).fract()
24    }
25}

noises_and_patterns/pattern.rs

noises_and_patterns/
pattern.rs