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

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

#[derive(Debug, Clone)]
pub struct ZygomaticArchMorph {
    pub width: f32,
    pub prominence: f32,
}

pub fn new_zygomatic_arch_morph() -> ZygomaticArchMorph {
    ZygomaticArchMorph {
        width: 0.0,
        prominence: 0.0,
    }
}

pub fn zygomatic_set_width(m: &mut ZygomaticArchMorph, v: f32) {
    m.width = v.clamp(0.0, 1.0);
}

pub fn zygomatic_set_prominence(m: &mut ZygomaticArchMorph, v: f32) {
    m.prominence = v.clamp(0.0, 1.0);
}

pub fn zygomatic_is_prominent(m: &ZygomaticArchMorph) -> bool {
    m.prominence > 0.5
}

pub fn zygomatic_overall_weight(m: &ZygomaticArchMorph) -> f32 {
    (m.width + m.prominence) / 2.0
}

pub fn zygomatic_blend(
    a: &ZygomaticArchMorph,
    b: &ZygomaticArchMorph,
    t: f32,
) -> ZygomaticArchMorph {
    let t = t.clamp(0.0, 1.0);
    ZygomaticArchMorph {
        width: a.width + (b.width - a.width) * t,
        prominence: a.prominence + (b.prominence - a.prominence) * t,
    }
}

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

    #[test]
    fn test_new_defaults() {
        /* zero init */
        let m = new_zygomatic_arch_morph();
        assert_eq!(m.width, 0.0);
        assert_eq!(m.prominence, 0.0);
    }

    #[test]
    fn test_set_width() {
        /* valid width */
        let mut m = new_zygomatic_arch_morph();
        zygomatic_set_width(&mut m, 0.6);
        assert!((m.width - 0.6).abs() < 1e-6);
    }

    #[test]
    fn test_set_width_clamp_high() {
        /* clamp high */
        let mut m = new_zygomatic_arch_morph();
        zygomatic_set_width(&mut m, 5.0);
        assert_eq!(m.width, 1.0);
    }

    #[test]
    fn test_set_prominence() {
        /* valid prominence */
        let mut m = new_zygomatic_arch_morph();
        zygomatic_set_prominence(&mut m, 0.3);
        assert!((m.prominence - 0.3).abs() < 1e-6);
    }

    #[test]
    fn test_set_prominence_clamp_low() {
        /* clamp low */
        let mut m = new_zygomatic_arch_morph();
        zygomatic_set_prominence(&mut m, -2.0);
        assert_eq!(m.prominence, 0.0);
    }

    #[test]
    fn test_overall_weight() {
        /* average */
        let m = ZygomaticArchMorph {
            width: 0.4,
            prominence: 0.8,
        };
        assert!((zygomatic_overall_weight(&m) - 0.6).abs() < 1e-5);
    }

    #[test]
    fn test_is_prominent_false() {
        /* default not prominent */
        let m = new_zygomatic_arch_morph();
        assert!(!zygomatic_is_prominent(&m));
    }

    #[test]
    fn test_is_prominent_true() {
        /* above 0.5 */
        let m = ZygomaticArchMorph {
            width: 0.0,
            prominence: 0.8,
        };
        assert!(zygomatic_is_prominent(&m));
    }

    #[test]
    fn test_blend() {
        /* midpoint blend */
        let a = ZygomaticArchMorph {
            width: 0.0,
            prominence: 0.0,
        };
        let b = ZygomaticArchMorph {
            width: 1.0,
            prominence: 1.0,
        };
        let c = zygomatic_blend(&a, &b, 0.5);
        assert!((c.width - 0.5).abs() < 1e-6);
    }

    #[test]
    fn test_clone() {
        /* clone is independent */
        let m = ZygomaticArchMorph {
            width: 0.3,
            prominence: 0.7,
        };
        let m2 = m.clone();
        assert_eq!(m.prominence, m2.prominence);
    }
}