oxihuman_morph/
skin_translucency_morph.rs

1// Copyright (C) 2026 COOLJAPAN OU (Team KitaSan)
2// SPDX-License-Identifier: Apache-2.0
3#![allow(dead_code)]
4
5//! Skin translucency morph control — back-lighting transmission effect.
6
7/// Skin translucency morph configuration.
8#[derive(Debug, Clone)]
9pub struct SkinTranslucencyMorph {
10    pub translucency: f32,
11    pub thin_skin_factor: f32,
12    pub vein_visibility: f32,
13}
14
15impl SkinTranslucencyMorph {
16    pub fn new() -> Self {
17        Self {
18            translucency: 0.4,
19            thin_skin_factor: 0.3,
20            vein_visibility: 0.1,
21        }
22    }
23}
24
25impl Default for SkinTranslucencyMorph {
26    fn default() -> Self {
27        Self::new()
28    }
29}
30
31/// Create a new skin translucency morph.
32pub fn new_skin_translucency_morph() -> SkinTranslucencyMorph {
33    SkinTranslucencyMorph::new()
34}
35
36/// Set overall translucency level.
37pub fn skin_trans_set_translucency(morph: &mut SkinTranslucencyMorph, translucency: f32) {
38    morph.translucency = translucency.clamp(0.0, 1.0);
39}
40
41/// Set thin-skin factor (ear/hand regions).
42pub fn skin_trans_set_thin_skin(morph: &mut SkinTranslucencyMorph, factor: f32) {
43    morph.thin_skin_factor = factor.clamp(0.0, 1.0);
44}
45
46/// Set vein visibility through skin.
47pub fn skin_trans_set_vein_visibility(morph: &mut SkinTranslucencyMorph, visibility: f32) {
48    morph.vein_visibility = visibility.clamp(0.0, 1.0);
49}
50
51/// Compute light bleed factor from translucency and thin-skin.
52pub fn skin_trans_light_bleed(morph: &SkinTranslucencyMorph) -> f32 {
53    (morph.translucency * 0.7 + morph.thin_skin_factor * 0.3).clamp(0.0, 1.0)
54}
55
56/// Serialize to JSON-like string.
57pub fn skin_translucency_morph_to_json(morph: &SkinTranslucencyMorph) -> String {
58    format!(
59        r#"{{"translucency":{:.4},"thin_skin_factor":{:.4},"vein_visibility":{:.4}}}"#,
60        morph.translucency, morph.thin_skin_factor, morph.vein_visibility
61    )
62}
63
64#[cfg(test)]
65mod tests {
66    use super::*;
67
68    #[test]
69    fn test_defaults() {
70        let m = new_skin_translucency_morph();
71        assert!((m.translucency - 0.4).abs() < 1e-6);
72    }
73
74    #[test]
75    fn test_translucency_clamp() {
76        let mut m = new_skin_translucency_morph();
77        skin_trans_set_translucency(&mut m, 2.0);
78        assert_eq!(m.translucency, 1.0);
79    }
80
81    #[test]
82    fn test_thin_skin_set() {
83        let mut m = new_skin_translucency_morph();
84        skin_trans_set_thin_skin(&mut m, 0.7);
85        assert!((m.thin_skin_factor - 0.7).abs() < 1e-6);
86    }
87
88    #[test]
89    fn test_vein_visibility() {
90        let mut m = new_skin_translucency_morph();
91        skin_trans_set_vein_visibility(&mut m, 0.5);
92        assert!((m.vein_visibility - 0.5).abs() < 1e-6);
93    }
94
95    #[test]
96    fn test_light_bleed_range() {
97        let m = new_skin_translucency_morph();
98        let lb = skin_trans_light_bleed(&m);
99        assert!((0.0..=1.0).contains(&lb));
100    }
101
102    #[test]
103    fn test_json() {
104        let m = new_skin_translucency_morph();
105        let s = skin_translucency_morph_to_json(&m);
106        assert!(s.contains("thin_skin_factor"));
107    }
108
109    #[test]
110    fn test_clone() {
111        let m = new_skin_translucency_morph();
112        let m2 = m.clone();
113        assert!((m2.vein_visibility - m.vein_visibility).abs() < 1e-6);
114    }
115
116    #[test]
117    fn test_vein_clamp_low() {
118        let mut m = new_skin_translucency_morph();
119        skin_trans_set_vein_visibility(&mut m, -0.5);
120        assert_eq!(m.vein_visibility, 0.0);
121    }
122
123    #[test]
124    fn test_default_trait() {
125        let m: SkinTranslucencyMorph = Default::default();
126        assert!((m.thin_skin_factor - 0.3).abs() < 1e-6);
127    }
128}
oxihuman_morph/skin_translucency_morph.rs

oxihuman_morph/
skin_translucency_morph.rs
