From 74ff9632637c44fddd06863968b38e12f18b1860 Mon Sep 17 00:00:00 2001
From: Chris Foster <cdbfoster@gmail.com>
Date: Mon, 9 Dec 2013 13:32:06 -0500
Subject: [PATCH] Re-added the Coordinate System and Up Axis options.
Apparently XNA uses a right handed system and the option was useful for some
users. Oops!
---
io_scene_x/__init__.py | 14 ++++++++++++++
io_scene_x/export_x.py | 18 +++++++++++-------
2 files changed, 25 insertions(+), 7 deletions(-)
diff --git a/io_scene_x/__init__.py b/io_scene_x/__init__.py
index 519ca16cd..394954e6d 100644
--- a/io_scene_x/__init__.py
+++ b/io_scene_x/__init__.py
@@ -53,6 +53,20 @@ class ExportDirectX(bpy.types.Operator):
description="Export only selected objects",
default=True)
+ CoordinateSystem = EnumProperty(
+ name="Coordinate System",
+ description="Use the selected coordinate system for export",
+ items=(('LEFT_HANDED', "Left-Handed", "Use a Y up, Z forward system or a Z up, -Y forward system"),
+ ('RIGHT_HANDED', "Right-Handed", "Use a Y up, -Z forward system or a Z up, Y forward system")),
+ default='LEFT_HANDED')
+
+ UpAxis = EnumProperty(
+ name="Up Axis",
+ description="The selected axis points upward",
+ items=(('Y', "Y", "The Y axis points up"),
+ ('Z', "Z", "The Z axis points up")),
+ default='Y')
+
ExportMeshes = BoolProperty(
name="Export Meshes",
description="Export mesh objects",
diff --git a/io_scene_x/export_x.py b/io_scene_x/export_x.py
index f8ccdef2c..dcaf22064 100644
--- a/io_scene_x/export_x.py
+++ b/io_scene_x/export_x.py
@@ -34,9 +34,16 @@ class DirectXExporter:
self.File = File(self.Config.filepath)
self.Log("Setting up coordinate system...")
- # SystemMatrix converts from right-handed, z-up to left-handed, y-up
- self.SystemMatrix = (Matrix.Scale(-1, 4, Vector((0, 0, 1))) *
- Matrix.Rotation(radians(-90), 4, 'X'))
+
+ # SystemMatrix converts from right-handed, z-up to the target coordinate system
+ self.SystemMatrix = Matrix()
+
+ if self.Config.CoordinateSystem == 'LEFT_HANDED':
+ self.SystemMatrix *= Matrix.Scale(-1, 4, Vector((0, 0, 1)))
+
+ if self.Config.UpAxis == 'Y':
+ self.SystemMatrix *= Matrix.Rotation(radians(-90), 4, 'X')
+
self.Log("Done")
self.Log("Generating object lists for export...")
@@ -469,8 +476,6 @@ class MeshExportObject(ExportObject):
self.Exporter.File.Write("{};".format(len(PolygonVertexIndexes)))
- PolygonVertexIndexes = PolygonVertexIndexes[::-1]
-
for VertexCountIndex, VertexIndex in \
enumerate(PolygonVertexIndexes):
@@ -574,8 +579,7 @@ class MeshExportObject(ExportObject):
for Index, Polygon in enumerate(MeshEnumerator.PolygonVertexIndexes):
self.Exporter.File.Write("{};".format(len(Polygon)))
- # Reverse the winding order
- for VertexCountIndex, VertexIndex in enumerate(Polygon[::-1]):
+ for VertexCountIndex, VertexIndex in enumerate(Polygon):
if VertexCountIndex == len(Polygon) - 1:
self.Exporter.File.Write("{};".format(VertexIndex),
Indent=False)
--
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