Basic Viseme Creation Support

Does not work yet, but it's the start

functions/viseme.py

@@ -0,0 +1,81 @@
+import bpy
+from ..core import common
+from ..core.register import register_wrap
+from ..functions.translations import t
+
+@register_wrap
+class AutoVisemeButton(bpy.types.Operator):
+    bl_idname = 'avatar_toolkit.create_visemes'
+    bl_label = t('AutoVisemeButton.label')
+    bl_description = t('AutoVisemeButton.desc')
+    bl_options = {'REGISTER', 'UNDO'}
+
+    @classmethod
+    def poll(cls, context):
+        return context.active_object and context.active_object.type == 'MESH'
+
+    def execute(self, context):
+        mesh = context.active_object
+        if not mesh or not common.has_shapekeys(mesh):
+            self.report({'ERROR'}, t('AutoVisemeButton.error.noShapekeys'))
+            return {'CANCELLED'}
+
+        shape_a = context.scene.mouth_a
+        shape_o = context.scene.mouth_o
+        shape_ch = context.scene.mouth_ch
+
+        if shape_a == "Basis" or shape_o == "Basis" or shape_ch == "Basis":
+            self.report({'ERROR'}, t('AutoVisemeButton.error.selectShapekeys'))
+            return {'CANCELLED'}
+
+        # Create visemes
+        visemes = [
+            ('vrc.v_aa', [(shape_a, 0.9998)]),
+            ('vrc.v_ch', [(shape_ch, 0.9996)]),
+            ('vrc.v_dd', [(shape_a, 0.3), (shape_ch, 0.7)]),
+            ('vrc.v_e', [(shape_a, 0.5), (shape_ch, 0.2)]),
+            ('vrc.v_ff', [(shape_a, 0.2), (shape_ch, 0.4)]),
+            ('vrc.v_ih', [(shape_ch, 0.7), (shape_o, 0.3)]),
+            ('vrc.v_kk', [(shape_a, 0.7), (shape_ch, 0.4)]),
+            ('vrc.v_nn', [(shape_a, 0.2), (shape_ch, 0.7)]),
+            ('vrc.v_oh', [(shape_a, 0.2), (shape_o, 0.8)]),
+            ('vrc.v_ou', [(shape_o, 0.9994)]),
+            ('vrc.v_pp', [(shape_a, 0.0004), (shape_o, 0.0004)]),
+            ('vrc.v_rr', [(shape_ch, 0.5), (shape_o, 0.3)]),
+            ('vrc.v_sil', [(shape_a, 0.0002), (shape_ch, 0.0002)]),
+            ('vrc.v_ss', [(shape_ch, 0.8)]),
+            ('vrc.v_th', [(shape_a, 0.4), (shape_o, 0.15)])
+        ]
+
+        for viseme_name, shape_mix in visemes:
+            self.create_viseme(mesh, viseme_name, shape_mix, context.scene.shape_intensity)
+
+        # Sort shape keys
+        common.sort_shape_keys(mesh)
+
+        self.report({'INFO'}, t('AutoVisemeButton.success'))
+        return {'FINISHED'}
+
+    def create_viseme(self, mesh, viseme_name, shape_mix, intensity):
+        # Remove existing viseme if it exists
+        if viseme_name in mesh.data.shape_keys.key_blocks:
+            mesh.shape_key_remove(mesh.data.shape_keys.key_blocks[viseme_name])
+
+        # Create new viseme
+        new_key = mesh.shape_key_add(name=viseme_name, from_mix=False)
+        new_key.value = 1.0
+
+        # Mix shapes
+        for shape_name, value in shape_mix:
+            if shape_name in mesh.data.shape_keys.key_blocks:
+                shape = mesh.data.shape_keys.key_blocks[shape_name]
+                shape.value = value * intensity
+
+        # Apply mix
+        mesh.shape_key_add(name=viseme_name, from_mix=True)
+
+        # Reset shape key values
+        for shape in mesh.data.shape_keys.key_blocks:
+            shape.value = 0.0
+
+        new_key.value = 1.0