oxihuman-morph 0.1.2

Parametric morphology engine for human body generation — targets, blendshapes, FACS
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

// Copyright (C) 2026 COOLJAPAN OU (Team KitaSan)
// SPDX-License-Identifier: Apache-2.0
#![allow(dead_code)]

#[derive(Debug, Clone)]
pub struct SkinPoreMorph {
    pub pore_size: f32,
    pub pore_density: f32,
    pub visibility: f32,
}

pub fn new_skin_pore_morph() -> SkinPoreMorph {
    SkinPoreMorph {
        pore_size: 0.0,
        pore_density: 0.0,
        visibility: 0.0,
    }
}

pub fn pore_set_size(m: &mut SkinPoreMorph, v: f32) {
    m.pore_size = v.clamp(0.0, 1.0);
}

pub fn pore_set_density(m: &mut SkinPoreMorph, v: f32) {
    m.pore_density = v.clamp(0.0, 1.0);
}

pub fn pore_overall_weight(m: &SkinPoreMorph) -> f32 {
    (m.pore_size + m.pore_density + m.visibility) / 3.0
}

pub fn pore_blend(a: &SkinPoreMorph, b: &SkinPoreMorph, t: f32) -> SkinPoreMorph {
    let t = t.clamp(0.0, 1.0);
    SkinPoreMorph {
        pore_size: a.pore_size + (b.pore_size - a.pore_size) * t,
        pore_density: a.pore_density + (b.pore_density - a.pore_density) * t,
        visibility: a.visibility + (b.visibility - a.visibility) * t,
    }
}

pub fn pore_is_visible(m: &SkinPoreMorph) -> bool {
    m.visibility > 0.1
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_new_defaults() {
        /* all fields should be zero */
        let m = new_skin_pore_morph();
        assert_eq!(m.pore_size, 0.0);
        assert_eq!(m.pore_density, 0.0);
        assert_eq!(m.visibility, 0.0);
    }

    #[test]
    fn test_set_size_clamp() {
        /* value is clamped to [0,1] */
        let mut m = new_skin_pore_morph();
        pore_set_size(&mut m, 2.5);
        assert_eq!(m.pore_size, 1.0);
        pore_set_size(&mut m, -1.0);
        assert_eq!(m.pore_size, 0.0);
    }

    #[test]
    fn test_set_density_clamp() {
        /* density clamped */
        let mut m = new_skin_pore_morph();
        pore_set_density(&mut m, 0.7);
        assert!((m.pore_density - 0.7).abs() < 1e-6);
    }

    #[test]
    fn test_overall_weight_average() {
        /* overall weight is mean of three fields */
        let mut m = new_skin_pore_morph();
        m.pore_size = 0.3;
        m.pore_density = 0.6;
        m.visibility = 0.9;
        let w = pore_overall_weight(&m);
        assert!((w - 0.6).abs() < 1e-5);
    }

    #[test]
    fn test_is_visible_false() {
        /* visibility 0 => not visible */
        let m = new_skin_pore_morph();
        assert!(!pore_is_visible(&m));
    }

    #[test]
    fn test_is_visible_true() {
        /* visibility above threshold */
        let mut m = new_skin_pore_morph();
        m.visibility = 0.5;
        assert!(pore_is_visible(&m));
    }

    #[test]
    fn test_blend_midpoint() {
        /* blend at t=0.5 gives average */
        let a = SkinPoreMorph {
            pore_size: 0.0,
            pore_density: 0.0,
            visibility: 0.0,
        };
        let b = SkinPoreMorph {
            pore_size: 1.0,
            pore_density: 1.0,
            visibility: 1.0,
        };
        let c = pore_blend(&a, &b, 0.5);
        assert!((c.pore_size - 0.5).abs() < 1e-6);
    }

    #[test]
    fn test_blend_at_zero() {
        /* blend t=0 returns a */
        let a = SkinPoreMorph {
            pore_size: 0.2,
            pore_density: 0.3,
            visibility: 0.4,
        };
        let b = SkinPoreMorph {
            pore_size: 0.8,
            pore_density: 0.9,
            visibility: 1.0,
        };
        let c = pore_blend(&a, &b, 0.0);
        assert!((c.pore_size - 0.2).abs() < 1e-6);
    }

    #[test]
    fn test_blend_at_one() {
        /* blend t=1 returns b */
        let a = SkinPoreMorph {
            pore_size: 0.0,
            pore_density: 0.0,
            visibility: 0.0,
        };
        let b = SkinPoreMorph {
            pore_size: 0.5,
            pore_density: 0.6,
            visibility: 0.7,
        };
        let c = pore_blend(&a, &b, 1.0);
        assert!((c.pore_size - 0.5).abs() < 1e-6);
    }

    #[test]
    fn test_clone() {
        /* clone produces independent copy */
        let m = new_skin_pore_morph();
        let m2 = m.clone();
        assert_eq!(m.pore_size, m2.pore_size);
    }
}