Add a few more profiling helpers.

Especially useful is the log print before converting the mesh verticies.
This is the slowest part of Korman, per profiling.

korman/exporter/mesh.py

@@ -374,6 +374,8 @@ class MeshConverter(_MeshManager):
             inc_progress()
 
     def _export_geometry(self, bo, mesh, materials, geospans, mat2span_LUT):
+        self._report.msg("Converting geometry from '{}'...", mesh.name, indent=1)
+
         # Recall that materials is a mapping of exported materials to blender material indices.
         # Therefore, geodata maps blender material indices to working geometry data.
         # Maybe the logic is a bit inverted, but it keeps the inner loop simple.

korman/operators/op_lightmap.py

@@ -16,10 +16,12 @@
 import bpy
 from bpy.props import *
 
+import cProfile
 from contextlib import contextmanager
-import itertools
+import pstats
 
 from ..exporter.etlight import LightBaker
+from ..exporter.explosions import ExportError
 from ..helpers import UiHelper
 from ..korlib import ConsoleToggler
 
@@ -95,6 +97,25 @@ class LightmapBakeMultiOperator(_LightingOperator, bpy.types.Operator):
         super().__init__()
 
     def execute(self, context):
+        profile_me = False
+
+        try:
+            if profile_me:
+                cProfile.runctx("self._run(context)", globals(), locals(), "bake_cProfile")
+            else:
+                self._run(context)
+        except ExportError as error:
+            self.report({"ERROR"}, str(error))
+            return {"CANCELLED"}
+        else:
+            if profile_me:
+                with open("bake_profile.log", "w") as out:
+                    stats = pstats.Stats("bake_cProfile", stream=out)
+                    stats = stats.sort_stats("time", "cumtime")
+                    stats.print_stats()
+        return {"FINISHED"}
+
+    def _run(self, context):
         all_objects = context.selected_objects if self.bake_selection else context.scene.objects
         filtered_objects = [i for i in all_objects if i.type == "MESH" and i.plasma_object.enabled]
 
@@ -109,8 +130,6 @@ class LightmapBakeMultiOperator(_LightingOperator, bpy.types.Operator):
             if lightmap_mod.bake_lightmap:
                 lightmap_mod.image = bake.get_lightmap(i)
 
-        return {"FINISHED"}
-
 
 class LightmapClearMultiOperator(_LightingOperator, bpy.types.Operator):
     bl_idname = "object.plasma_lightmap_clear"