From c50f275b1b63d7d82cb7fd4776f58ee7f65a03f6 Mon Sep 17 00:00:00 2001
From: Yusarina <hello@yusarina.xyz>
Date: Sat, 2 Aug 2025 15:11:34 +0100
Subject: [PATCH] VRM Convert Breast bones

---
 core/dictionaries.py        | 36 +++++++++++++++++++++++++++++++++++-
 core/vrm_unity_converter.py | 13 ++++++++++++-
 2 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/core/dictionaries.py b/core/dictionaries.py
index f934fc9..58aeabd 100644
--- a/core/dictionaries.py
+++ b/core/dictionaries.py
@@ -255,6 +255,24 @@ bone_names = {
     "right_eye": [
         "eyeright", "righteye", "eyer", "reye", "右目", "ik_右目"
     ],
+    "breast_1_l": [
+        "j_sec_l_bust1", "breast1_l", "leftbreast1", "lbreast1", "bust1_l"
+    ],
+    "breast_2_l": [
+        "j_sec_l_bust2", "breast2_l", "leftbreast2", "lbreast2", "bust2_l"
+    ],
+    "breast_3_l": [
+        "j_sec_l_bust3", "breast3_l", "leftbreast3", "lbreast3", "bust3_l"
+    ],
+    "breast_1_r": [
+        "j_sec_r_bust1", "breast1_r", "rightbreast1", "rbreast1", "bust1_r"
+    ],
+    "breast_2_r": [
+        "j_sec_r_bust2", "breast2_r", "rightbreast2", "rbreast2", "bust2_r"
+    ],
+    "breast_3_r": [
+        "j_sec_r_bust3", "breast3_r", "rightbreast3", "rbreast3", "bust3_r"
+    ]
 }
 
 # Add VRM bone name variations  
@@ -295,6 +313,14 @@ bone_names.update({
     # VRM jaw
     'jaw': ['jaw', 'mandible', 'lowerjaw', 'chin', 'あご', 'ik_あご'],
     
+    # Breast bones
+    'breast_1_l': bone_names['breast_1_l'] + ['jbipcbreast1l', 'jlbreast1'],
+    'breast_2_l': bone_names['breast_2_l'] + ['jbipcbreast2l', 'jlbreast2'],
+    'breast_3_l': bone_names['breast_3_l'] + ['jbipcbreast3l', 'jlbreast3'],
+    'breast_1_r': bone_names['breast_1_r'] + ['jbipcbreast1r', 'jrbreast1'],
+    'breast_2_r': bone_names['breast_2_r'] + ['jbipcbreast2r', 'jrbreast2'],
+    'breast_3_r': bone_names['breast_3_r'] + ['jbipcbreast3r', 'jrbreast3'],
+    
     # VRM fingers - Left (including Little finger variations)
     'thumb_0_l': bone_names['thumb_0_l'] + ['jbipllthumb0', 'jlthumb0', 'jbipllthumbmetacarpal', 'jlthumbmetacarpal', 'leftthumbmetacarpal'],
     'thumb_1_l': bone_names['thumb_1_l'] + ['jbipllthumb1', 'jlthumb1', 'jbiplthumb1', 'leftthumbproximal'],
@@ -486,7 +512,15 @@ standard_bones = {
     
     # Eyes
     'left_eye': 'Eye.L',
-    'right_eye': 'Eye.R'
+    'right_eye': 'Eye.R',
+    
+    # Breast bones
+    'breast_1_l': 'Breast1_L',
+    'breast_2_l': 'Breast2_L',
+    'breast_3_l': 'Breast3_L',
+    'breast_1_r': 'Breast1_R',
+    'breast_2_r': 'Breast2_R',
+    'breast_3_r': 'Breast3_R'
 }
 
 bone_hierarchy = [
diff --git a/core/vrm_unity_converter.py b/core/vrm_unity_converter.py
index 21225cd..73e6458 100644
--- a/core/vrm_unity_converter.py
+++ b/core/vrm_unity_converter.py
@@ -33,6 +33,9 @@ def detect_vrm_armature(armature: Object) -> bool:
         'jbiplring1', 'jbiplring2', 'jbiplring3',
         # Face eye patterns
         'jadjlfaceeye', 'jadjrfaceeye',
+        # Breast patterns
+        'jseclbust1', 'jseclbust2', 'jseclbust3',
+        'jsecrbust1', 'jsecrbust2', 'jsecrbust3',
         'jbipc', 'jbipr', 'jbipl'  
     ]
     
@@ -158,7 +161,15 @@ def guess_unity_name_from_vrm(vrm_simplified: str) -> Optional[str]:
         'jbipllittle3': 'LeftPinky3',
         'jbiprlittle1': 'RightPinky1',
         'jbiprlittle2': 'RightPinky2',
-        'jbiprlittle3': 'RightPinky3'
+        'jbiprlittle3': 'RightPinky3',
+        
+        # Breast bones
+        'jseclbust1': 'Breast1_L',
+        'jseclbust2': 'Breast2_L',
+        'jseclbust3': 'Breast3_L',
+        'jsecrbust1': 'Breast1_R',
+        'jsecrbust2': 'Breast2_R',
+        'jsecrbust3': 'Breast3_R'
     }
     
     return pattern_mappings.get(vrm_simplified)