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# SPDX-License-Identifier: Apache-2.0
# Copyright 2011-2022 Blender Foundation
# XML exporter for generating test files, not intended for end users
import xml.etree.ElementTree as etree
import xml.dom.minidom as dom
import bpy
from bpy_extras.io_utils import ExportHelper
from bpy.props import PointerProperty, StringProperty
def strip(root):
root.text = None
root.tail = None
for elem in root:
strip(elem)
def write(node, fname):
strip(node)
s = etree.tostring(node)
s = dom.parseString(s).toprettyxml()
f = open(fname, "w")
f.write(s)
class CyclesXMLSettings(bpy.types.PropertyGroup):
@classmethod
def register(cls):
bpy.types.Scene.cycles_xml = PointerProperty(
type=cls,
name="Cycles XML export Settings",
description="Cycles XML export settings")
cls.filepath = StringProperty(
name='Filepath',
description='Filepath for the .xml file',
maxlen=256,
default='',
subtype='FILE_PATH')
@classmethod
def unregister(cls):
del bpy.types.Scene.cycles_xml
# User Interface Drawing Code
class RenderButtonsPanel():
bl_space_type = 'PROPERTIES'
bl_region_type = 'WINDOW'
bl_context = "render"
@classmethod
def poll(cls, context):
return context.engine == 'CYCLES'
class PHYSICS_PT_fluid_export(RenderButtonsPanel, bpy.types.Panel):
bl_label = "Cycles XML Exporter"
def draw(self, context):
layout = self.layout
cycles = context.scene.cycles_xml
#layout.prop(cycles, "filepath")
layout.operator("export_mesh.cycles_xml")
# Export Operator
class ExportCyclesXML(bpy.types.Operator, ExportHelper):
bl_idname = "export_mesh.cycles_xml"
bl_label = "Export Cycles XML"
filename_ext = ".xml"
@classmethod
def poll(cls, context):
return (context.active_object is not None)
def execute(self, context):
filepath = bpy.path.ensure_ext(self.filepath, ".xml")
# get mesh
scene = context.scene
object = context.active_object
if not object:
raise Exception("No active object")
mesh = object.to_mesh(scene, True, 'PREVIEW')
if not mesh:
raise Exception("No mesh data in active object")
# generate mesh node
nverts = ""
verts = ""
uvs = ""
P = ""
for v in mesh.vertices:
P += "%f %f %f " % (v.co[0], v.co[1], v.co[2])
verts_and_uvs = zip(mesh.tessfaces, mesh.tessface_uv_textures.active.data)
for f, uvf in verts_and_uvs:
vcount = len(f.vertices)
nverts += str(vcount) + " "
for v in f.vertices:
verts += str(v) + " "
uvs += str(uvf.uv1[0]) + " " + str(uvf.uv1[1]) + " "
uvs += str(uvf.uv2[0]) + " " + str(uvf.uv2[1]) + " "
uvs += str(uvf.uv3[0]) + " " + str(uvf.uv3[1]) + " "
if vcount==4:
uvs += " " + str(uvf.uv4[0]) + " " + str(uvf.uv4[1]) + " "
node = etree.Element('mesh', attrib={'nverts': nverts.strip(), 'verts': verts.strip(), 'P': P, 'UV' : uvs.strip()})
# write to file
write(node, filepath)
return {'FINISHED'}
def register():
bpy.utils.register_module(__name__)
def unregister():
bpy.utils.unregister_module(__name__)
if __name__ == "__main__":
register()
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