Added Triplanar setup script

Assets/avatar-example/mesh/blend~/add_setup_triplanar.py

@@ -0,0 +1,72 @@
+from math import pi
+
+import bpy
+from bpy.types import Context, Operator
+
+
+def create_triplanar_setup(context: Context) -> None:
+    """
+    Creates triplanar setup - a mesh cube with UVProject modifier and 6 UV projectors
+
+    :param context: Current context
+    :type context: bpy.types.Context
+    """
+    bpy.ops.object.empty_add(type='CUBE', radius=1.6, location=(1.6, 1.6, 1.6), rotation=(0, 0, 0))
+    anchor_empty = context.active_object
+    anchor_empty.name = "UV_anchor"
+
+    bpy.ops.mesh.primitive_cube_add(radius=1, calc_uvs=True)
+    cube_obj = context.active_object
+
+    bpy.ops.object.modifier_add(type='UV_PROJECT')
+    uv_mod = cube_obj.modifiers["UVProject"]
+
+    rotations_list = [
+        ("top", (0, 0, 0)),
+        ("front", (pi/2, 0, 0)),
+        ("back", (pi/2, 0, pi)),
+        ("left", (pi/2, 0, pi/2)),
+        ("right", (pi/2, 0, -pi/2)),
+        ("bottom", (pi, 0, 0)),
+    ]
+
+    uv_mod.projector_count = len(rotations_list)
+
+    for i, (name, rotation) in enumerate(rotations_list):
+        bpy.ops.object.empty_add(type='SINGLE_ARROW', radius=1.6, location=(0, 0, 0), rotation=rotation)
+        uv_projector = context.active_object
+        uv_projector.name = "UV_%s" % name
+        uv_projector.parent = anchor_empty
+        uv_mod.projectors[i].object = uv_projector
+
+
+class MESH_OT_AddTriplanarSetup(Operator):
+    bl_idname = "mesh.setup_triplanar_add"
+    bl_label = "Triplanar UV Setup"
+    bl_options = {'REGISTER', 'UNDO'}
+
+    def execute(self, context: Context):
+        try:
+            create_triplanar_setup(context)
+        except Exception as e:
+            self.report({'ERROR'}, str(e))
+            return {'CANCELLED'}
+        return {'FINISHED'}
+
+
+def draw_triplanar_setup(self, context):
+    self.layout.operator(MESH_OT_AddTriplanarSetup.bl_idname, icon='MOD_UVPROJECT')
+
+
+def register():
+    bpy.utils.register_class(MESH_OT_AddTriplanarSetup)
+    if draw_triplanar_setup.__name__ not in [f.__name__ for f in bpy.types.INFO_MT_mesh_add._dyn_ui_initialize()]:
+        bpy.types.INFO_MT_mesh_add.append(draw_triplanar_setup)
+
+
+def unregister():
+    bpy.types.INFO_MT_mesh_add.remove(draw_triplanar_setup)
+    bpy.utils.unregister_class(MESH_OT_AddTriplanarSetup)
+
+
+register()