oxihuman-viewer 0.2.1

wgpu/WebGPU rendering adapter for OxiHuman
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

// Copyright (C) 2026 COOLJAPAN OU (Team KitaSan)
// SPDX-License-Identifier: Apache-2.0

//! Skin weight heat-map visualization.

#![allow(dead_code)]

/// Configuration for weight overlay.
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct WeightOverlayConfig {
    pub bone_index: u32,
    pub zero_color: [f32; 4],
    pub full_color: [f32; 4],
}

/// Runtime state for weight overlay.
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct WeightOverlayState {
    pub enabled: bool,
    pub config: WeightOverlayConfig,
}

#[allow(dead_code)]
pub fn default_weight_overlay_config() -> WeightOverlayConfig {
    WeightOverlayConfig {
        bone_index: 0,
        zero_color: [0.0, 0.0, 1.0, 1.0],
        full_color: [1.0, 0.0, 0.0, 1.0],
    }
}

#[allow(dead_code)]
pub fn new_weight_overlay_state() -> WeightOverlayState {
    WeightOverlayState {
        enabled: false,
        config: default_weight_overlay_config(),
    }
}

#[allow(dead_code)]
pub fn wov_set_enabled(state: &mut WeightOverlayState, v: bool) {
    state.enabled = v;
}

#[allow(dead_code)]
pub fn wov_set_bone(state: &mut WeightOverlayState, bone_index: u32) {
    state.config.bone_index = bone_index;
}

#[allow(dead_code)]
pub fn wov_color_for_weight(state: &WeightOverlayState, w: f32) -> [f32; 4] {
    let t = w.clamp(0.0, 1.0);
    let z = &state.config.zero_color;
    let f = &state.config.full_color;
    [
        z[0] + (f[0] - z[0]) * t,
        z[1] + (f[1] - z[1]) * t,
        z[2] + (f[2] - z[2]) * t,
        z[3] + (f[3] - z[3]) * t,
    ]
}

#[allow(dead_code)]
pub fn wov_to_json(state: &WeightOverlayState) -> String {
    let zc = &state.config.zero_color;
    let fc = &state.config.full_color;
    format!(
        r#"{{"enabled":{},"bone_index":{},"zero_color":[{:.4},{:.4},{:.4},{:.4}],"full_color":[{:.4},{:.4},{:.4},{:.4}]}}"#,
        state.enabled,
        state.config.bone_index,
        zc[0], zc[1], zc[2], zc[3],
        fc[0], fc[1], fc[2], fc[3]
    )
}

#[allow(dead_code)]
pub fn wov_reset(state: &mut WeightOverlayState) {
    *state = new_weight_overlay_state();
}

#[allow(dead_code)]
pub fn wov_is_enabled(state: &WeightOverlayState) -> bool {
    state.enabled
}

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

    #[test]
    fn test_default_config() {
        let cfg = default_weight_overlay_config();
        assert_eq!(cfg.bone_index, 0);
        assert!((cfg.zero_color[2] - 1.0).abs() < 1e-6);
    }

    #[test]
    fn test_new_state_disabled() {
        let s = new_weight_overlay_state();
        assert!(!wov_is_enabled(&s));
    }

    #[test]
    fn test_set_enabled() {
        let mut s = new_weight_overlay_state();
        wov_set_enabled(&mut s, true);
        assert!(wov_is_enabled(&s));
    }

    #[test]
    fn test_set_bone() {
        let mut s = new_weight_overlay_state();
        wov_set_bone(&mut s, 5);
        assert_eq!(s.config.bone_index, 5);
    }

    #[test]
    fn test_color_for_weight_zero() {
        let s = new_weight_overlay_state();
        let c = wov_color_for_weight(&s, 0.0);
        assert!((c[2] - 1.0).abs() < 1e-6); // blue component from zero_color
    }

    #[test]
    fn test_color_for_weight_full() {
        let s = new_weight_overlay_state();
        let c = wov_color_for_weight(&s, 1.0);
        assert!((c[0] - 1.0).abs() < 1e-6); // red component from full_color
    }

    #[test]
    fn test_to_json_contains_fields() {
        let s = new_weight_overlay_state();
        let j = wov_to_json(&s);
        assert!(j.contains("bone_index"));
        assert!(j.contains("zero_color"));
        assert!(j.contains("full_color"));
    }

    #[test]
    fn test_reset() {
        let mut s = new_weight_overlay_state();
        wov_set_enabled(&mut s, true);
        wov_set_bone(&mut s, 10);
        wov_reset(&mut s);
        assert!(!s.enabled);
        assert_eq!(s.config.bone_index, 0);
    }
}