From f0986beef32ff23dd7c61ebdc531a46958efca16 Mon Sep 17 00:00:00 2001
From: Bastien Montagne <montagne29@wanadoo.fr>
Date: Mon, 2 Sep 2013 18:34:31 +0000
Subject: [PATCH] Update to OBJ exporter: now you can choose wether to export
smooth groups IDs as simple values or as bitflags.
---
io_scene_obj/__init__.py | 6 ++++++
io_scene_obj/export_obj.py | 9 +++++++--
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/io_scene_obj/__init__.py b/io_scene_obj/__init__.py
index 9b5e4021b..f3ed2b6b4 100644
--- a/io_scene_obj/__init__.py
+++ b/io_scene_obj/__init__.py
@@ -242,6 +242,12 @@ class ExportOBJ(bpy.types.Operator, ExportHelper):
description="Write sharp edges as smooth groups",
default=False,
)
+ use_smooth_groups_bitflags = BoolProperty(
+ name="Bitflag Smooth Groups",
+ description="Same as 'Smooth Groups', but generate smooth groups IDs as bitflags "
+ "(produces at most 32 different smooth groups, usually much less)",
+ default=False,
+ )
use_normals = BoolProperty(
name="Include Normals",
description="",
diff --git a/io_scene_obj/export_obj.py b/io_scene_obj/export_obj.py
index 41843b0f9..688773ee0 100644
--- a/io_scene_obj/export_obj.py
+++ b/io_scene_obj/export_obj.py
@@ -246,6 +246,7 @@ def write_file(filepath, objects, scene,
EXPORT_TRI=False,
EXPORT_EDGES=False,
EXPORT_SMOOTH_GROUPS=False,
+ EXPORT_SMOOTH_GROUPS_BITFLAGS=False,
EXPORT_NORMALS=False,
EXPORT_UV=True,
EXPORT_MTL=True,
@@ -402,8 +403,8 @@ def write_file(filepath, objects, scene,
if EXPORT_NORMALS and face_index_pairs:
me.calc_normals()
- if EXPORT_SMOOTH_GROUPS and face_index_pairs:
- smooth_groups, smooth_groups_tot = me.calc_smooth_groups()
+ if (EXPORT_SMOOTH_GROUPS or EXPORT_SMOOTH_GROUPS_BITFLAGS) and face_index_pairs:
+ smooth_groups, smooth_groups_tot = me.calc_smooth_groups(EXPORT_SMOOTH_GROUPS_BITFLAGS)
if smooth_groups_tot <= 1:
smooth_groups, smooth_groups_tot = (), 0
else:
@@ -690,6 +691,7 @@ def _write(context, filepath,
EXPORT_TRI, # ok
EXPORT_EDGES,
EXPORT_SMOOTH_GROUPS,
+ EXPORT_SMOOTH_GROUPS_BITFLAGS,
EXPORT_NORMALS, # not yet
EXPORT_UV, # ok
EXPORT_MTL,
@@ -742,6 +744,7 @@ def _write(context, filepath,
EXPORT_TRI,
EXPORT_EDGES,
EXPORT_SMOOTH_GROUPS,
+ EXPORT_SMOOTH_GROUPS_BITFLAGS,
EXPORT_NORMALS,
EXPORT_UV,
EXPORT_MTL,
@@ -775,6 +778,7 @@ def save(operator, context, filepath="",
use_edges=True,
use_normals=False,
use_smooth_groups=False,
+ use_smooth_groups_bitflags=False,
use_uvs=True,
use_materials=True,
use_mesh_modifiers=True,
@@ -794,6 +798,7 @@ def save(operator, context, filepath="",
EXPORT_TRI=use_triangles,
EXPORT_EDGES=use_edges,
EXPORT_SMOOTH_GROUPS=use_smooth_groups,
+ EXPORT_SMOOTH_GROUPS_BITFLAGS=use_smooth_groups_bitflags,
EXPORT_NORMALS=use_normals,
EXPORT_UV=use_uvs,
EXPORT_MTL=use_materials,
--
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