fastnoise2 0.4.0

A safe Rust wrapper for FastNoise2, a node-based noise generation library optimized with SIMD.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176

use super::{domain_warp::DomainWarpNode, Generator, GeneratorWrapper, Hybrid};
use crate::{safe::SafeNode, Node};

#[derive(Clone, Debug)]
pub struct DomainWarpFractalProgressive<S, G, W>
where
    S: DomainWarpNode,
    G: Hybrid,
    W: Hybrid,
{
    pub domain_warp_source: S,
    pub gain: G,
    pub weighted_strength: W,
    pub octaves: i32,
    pub lacunarity: f32,
}

#[derive(Clone, Debug)]
pub struct DomainWarpFractalIndependent<S, G, W>
where
    S: DomainWarpNode,
    G: Hybrid,
    W: Hybrid,
{
    pub domain_warp_source: S,
    pub gain: G,
    pub weighted_strength: W,
    pub octaves: i32,
    pub lacunarity: f32,
}

impl<S, G, W> Generator for DomainWarpFractalProgressive<S, G, W>
where
    S: DomainWarpNode,
    G: Hybrid,
    W: Hybrid,
{
    #[cfg_attr(feature = "trace", tracing::instrument(level = "trace"))]
    fn build(&self) -> GeneratorWrapper<SafeNode> {
        let mut node = Node::from_name("DomainWarpFractalProgressive").unwrap();
        node.set("DomainWarpSource", &self.domain_warp_source)
            .unwrap();
        node.set("Gain", self.gain.clone()).unwrap();
        node.set("WeightedStrength", self.weighted_strength.clone())
            .unwrap();
        node.set("Octaves", self.octaves).unwrap();
        node.set("Lacunarity", self.lacunarity).unwrap();
        SafeNode(node.into()).into()
    }
}

impl<S, G, W> Generator for DomainWarpFractalIndependent<S, G, W>
where
    S: DomainWarpNode,
    G: Hybrid,
    W: Hybrid,
{
    #[cfg_attr(feature = "trace", tracing::instrument(level = "trace"))]
    fn build(&self) -> GeneratorWrapper<SafeNode> {
        let mut node = Node::from_name("DomainWarpFractalIndependent").unwrap();
        node.set("DomainWarpSource", &self.domain_warp_source)
            .unwrap();
        node.set("Gain", self.gain.clone()).unwrap();
        node.set("WeightedStrength", self.weighted_strength.clone())
            .unwrap();
        node.set("Octaves", self.octaves).unwrap();
        node.set("Lacunarity", self.lacunarity).unwrap();
        SafeNode(node.into()).into()
    }
}

impl<S> GeneratorWrapper<S>
where
    S: DomainWarpNode,
{
    pub fn domain_warp_progressive<G, W>(
        self,
        gain: G,
        weighted_strength: W,
        octaves: i32,
        lacunarity: f32,
    ) -> GeneratorWrapper<DomainWarpFractalProgressive<S, G, W>>
    where
        G: Hybrid,
        W: Hybrid,
    {
        DomainWarpFractalProgressive {
            domain_warp_source: self.0,
            gain,
            weighted_strength,
            octaves,
            lacunarity,
        }
        .into()
    }

    pub fn domain_warp_independent<G, W>(
        self,
        gain: G,
        weighted_strength: W,
        octaves: i32,
        lacunarity: f32,
    ) -> GeneratorWrapper<DomainWarpFractalIndependent<S, G, W>>
    where
        G: Hybrid,
        W: Hybrid,
    {
        DomainWarpFractalIndependent {
            domain_warp_source: self.0,
            gain,
            weighted_strength,
            octaves,
            lacunarity,
        }
        .into()
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::{generator::perlin::perlin, test_utils::*};

    #[test]
    fn test_domain_warp_fractal_progressive() {
        // Domain warp fractal methods work on DomainWarpNode types
        let node = perlin()
            .domain_warp_gradient(50.0, 100.0)
            .domain_warp_progressive(0.5, 0.0, 4, 2.0)
            .build();
        test_generator_produces_output(node.0);
    }

    #[test]
    fn test_domain_warp_fractal_independent() {
        let node = perlin()
            .domain_warp_gradient(50.0, 100.0)
            .domain_warp_independent(0.5, 0.0, 4, 2.0)
            .build();
        test_generator_produces_output(node.0);
    }

    #[test]
    fn test_param_domain_warp_fractal_gain() {
        let node1 = perlin()
            .domain_warp_gradient(50.0, 100.0)
            .domain_warp_progressive(0.3, 0.0, 4, 2.0)
            .build();
        let node2 = perlin()
            .domain_warp_gradient(50.0, 100.0)
            .domain_warp_progressive(0.7, 0.0, 4, 2.0)
            .build();
        let output1 = generate_output(&node1.0);
        let output2 = generate_output(&node2.0);
        assert_outputs_differ(&output1, &output2, "DomainWarpFractalProgressive.Gain");
    }

    #[test]
    fn test_param_domain_warp_fractal_weighted_strength() {
        let node1 = perlin()
            .domain_warp_gradient(50.0, 100.0)
            .domain_warp_progressive(0.5, 0.0, 4, 2.0)
            .build();
        let node2 = perlin()
            .domain_warp_gradient(50.0, 100.0)
            .domain_warp_progressive(0.5, 0.5, 4, 2.0)
            .build();
        let output1 = generate_output(&node1.0);
        let output2 = generate_output(&node2.0);
        assert_outputs_differ(
            &output1,
            &output2,
            "DomainWarpFractalProgressive.Weighted Strength",
        );
    }
}