Added Blender export support.
bugfix: geo.py no longer crashes when writing models with no triangles.master
TigerKat
5 years ago
parent
be2d6f5eed
commit
af369f9b31
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bl_info = {
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"name": "City of Heroes (.geo)",
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"author": "TigerKat",
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"version": (0, 1),
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"blender": (2, 79, 0),
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"location": "File > Import/Export,",
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"description": "City of Heroes (.geo)",
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"tracker_url": "https://git.ourodev.com/tigerkat/geopy/issues",
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"warning": "",
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"category": "Import-Export"}
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if "bpy" in locals():
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import importlib
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if "import_geo" in locals():
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importlib.reload(import_geo)
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if "export_geo" in locals():
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importlib.reload(export_geo)
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if "geo" in locals():
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importlib.reload(geo)
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if "geomesh" in locals():
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importlib.reload(geomesh)
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if "vec_math" in locals():
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importlib.reload(vec_math)
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## Python doesn't reload package sub-modules at the same time as __init__.py!
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#import os.path
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#import imp, sys
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#for filename in [ f for f in os.listdir(os.path.dirname(os.path.realpath(__file__))) if f.endswith(".py") ]:
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# if filename == os.path.basename(__file__): continue
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# mod = sys.modules.get("{}.{}".format(__name__,filename[:-3]))
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# if mod: imp.reload(mod)
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import mathutils
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import bpy
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from bpy.props import (
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BoolProperty,
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EnumProperty,
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FloatProperty,
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StringProperty,
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)
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from bpy_extras.io_utils import (
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ImportHelper,
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ExportHelper,
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)
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##############################################################################
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class ImportGeo(bpy.types.Operator, ImportHelper):
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bl_idname = "import_scene.geo"
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bl_label = "Import GEO"
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filename_ext = ".geo"
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filter_glob = StringProperty(default="*.geo", options={'HIDDEN'})
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def execute(self, context):
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from . import import_geo
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keywords = self.as_keywords(ignore=("filter_glob",))
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return import_geo.load(self, context, **keywords)
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class ExportGeo(bpy.types.Operator, ExportHelper):
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bl_idname = "export_scene.geo"
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bl_label = "Export GEO"
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filename_ext = ".geo"
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filter_glob = StringProperty(default="*.geo", options={'HIDDEN'})
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def execute(self, context):
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from . import export_geo
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keywords = self.as_keywords(ignore=("filter_glob",
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"check_existing",
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))
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return export_geo.save(self, context, **keywords)
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def menu_func_import(self, context):
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self.layout.operator(ImportGeo.bl_idname,
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text="City of Heroes (.geo)")
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def menu_func_export(self, context):
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self.layout.operator(ExportGeo.bl_idname,
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text="City of Heroes (.geo)")
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def register():
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bpy.utils.register_module(__name__)
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bpy.types.INFO_MT_file_import.append(menu_func_import)
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bpy.types.INFO_MT_file_export.append(menu_func_export)
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def unregister():
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bpy.utils.unregister_module(__name__)
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bpy.types.INFO_MT_file_import.remove(menu_func_import)
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bpy.types.INFO_MT_file_export.remove(menu_func_export)
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if __name__ == "__main__":
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register()
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@ -0,0 +1,110 @@
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from .geo import Geo
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from .geomesh import *
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import bpy.path
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import bpy
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from bpy_extras.io_utils import axis_conversion
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def convert_mesh(geo_model, mesh, obj):
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# Be sure tessface & co are available!
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if not mesh.tessfaces and mesh.polygons:
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mesh.calc_tessface()
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mesh_verts = mesh.vertices # save a lookup
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has_uv = bool(mesh.tessface_uv_textures)
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if has_uv:
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active_uv_layer = mesh.tessface_uv_textures.active
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if not active_uv_layer:
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has_uv = False
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else:
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active_uv_layer = active_uv_layer.data
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geomesh = GeoMesh()
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texture_name = "white"
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print("len(mesh.tessfaces): %s" % len(mesh.tessfaces))
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print("mesh.tessfaces: %s" % repr(mesh.tessfaces))
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for i, f in enumerate(mesh.tessfaces):
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if has_uv:
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uv = active_uv_layer[i]
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texture_image = uv.image
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uv = [uv.uv1, uv.uv2, uv.uv3, uv.uv4]
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if texture_image is None:
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texture_name = "white"
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else:
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texture_name = texture_image.name
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if texture_name == "":
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texture_name = bpy.path.display_name_from_filepath(texture_image.filepath)
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if texture_name == "":
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texture_name = "white"
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else:
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uv = [(0, 0)] * 4
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texture_name = "white"
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f_verts = f.vertices
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verts = []
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norms = []
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groups = []
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geoverts = []
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for i, v_index in enumerate(f_verts):
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v = mesh_verts[v_index]
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verts.append(v.co)
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norms.append(v.normal)
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weights = []
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for weight in v.groups:
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group = obj.vertex_groups[weight.group]
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w = [group.name, weight.weight]
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weights.append(w)
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gv = GeoVertex(v.co, v.normal, uv[i], weights)
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geoverts.append(gv)
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geomesh.addFace(geoverts, texture_name)
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print("face: vertices: %s uvs: %s norms: %s groups: %s" % (verts, uv, norms, weights))
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geomesh.dump()
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geo_model.loadFromGeoMesh(geomesh)
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#todo:
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pass
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def save(operator, context, filepath = "", global_matrix = None, use_mesh_modifiers = True):
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print("export_geo.save(): %s" % (filepath, ))
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geo = Geo()
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geo.getTextureIndex("white.tga")
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geo.getTextureIndex("white")
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body_name = bpy.path.display_name_from_filepath(filepath)
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geo.setName(body_name)
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axis_rotation = axis_conversion('-Y', 'Z', 'Z', 'Y')
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axis_rotation.resize_4x4()
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for ob in context.selected_objects:
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print("Object: %s (%s)" % (ob.name, ob.type))
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if ob.type != "MESH":
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continue
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ob.update_from_editmode()
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if global_matrix is None:
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from mathutils import Matrix
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global_matrix = Matrix()
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# get the modifiers
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mesh = ob.to_mesh(bpy.context.scene, use_mesh_modifiers, "PREVIEW")
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#translate_matrix = Matrix.Translation(-ob.location)
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translate_matrix = Matrix()
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# * ob.matrix_world
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mesh.transform(global_matrix * translate_matrix * axis_rotation)
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mesh.calc_normals()
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geo_model = geo.addModel(ob.name)
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convert_mesh(geo_model, mesh, ob)
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data = geo.saveToData()
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fh = open(filepath, "wb")
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fh.write(data)
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fh.close()
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return {'FINISHED'}
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@ -0,0 +1,128 @@
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import functools
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def weight_cmp(a, b):
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return a[1] < b[1] or (a[1] == b[1] and a[0] < b[0])
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def tuple_weights(weights):
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return tuple((tuple(w) for w in weights))
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class GeoVertex:
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def __init__(self, coord, normal, uv, weights):
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self.coord = coord
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self.normal = normal
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self.uv = uv
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self.weights = weights
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def __eq__(self, other):
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return self.coord == other.coord and self.normal == other.normal and self.uv == other.uv and self.weights == other.weights
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def __hash__(self):
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#print("__hash__: %s" % ((tuple(self.coord), tuple(self.normal), tuple(self.uv), tuple(self.weights)), ))
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return hash((tuple(self.coord), tuple(self.normal), tuple(self.uv), tuple_weights(self.weights)))
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def selectWeights(self, count = None):
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"""Returns the list of weights attached to this vertex. List is sorted by weight, with the strongest first. If 'count' is given, only 'count' strongest are return. The final list is normalized so the sum is 1."""
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if len(self.weights) <= 0:
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return []
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weights = list(self.weights)
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#sort by weight
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weights.sort(key = functools.cmp_to_key(weight_cmp), reverse = True)
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if count is not None and len(weights) > count:
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weights = weights[0:count]
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nw = 0.0
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for w in weights:
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nw += w[1]
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if nw <= 0:
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for w in weights:
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w[1] = 0
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weights[0][1] = 1
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else:
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for w in weights:
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w[1] /= nw
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return weights
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def dump(self):
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print(" GeoVertex: coord: %s normal: %s uv: %s weights: %s" % (self.coord, self.normal, self.uv, self.weights))
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class GeoFace:
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def __init__(self, vert_indexes, texture_index):
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self.vert_indexes = vert_indexes
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self.texture_index = texture_index
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def __eq__(self, other):
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return self.vert_indexes == other.vert_indexes and self.texture_index == other.texture_index
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def dump(self):
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print(" GeoFace: vertex indexes: %s texture index: %s" % (self.vert_indexes, self.texture_index))
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class GeoMesh:
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def __init__(self):
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self.geovertex = []
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self.geovertex_map = {}
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self.textures = []
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self.textures_map = {}
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self.weights = []
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self.weights_map = {}
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self.face = []
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self.have_weights = False
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self.have_uvs = True
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def getGeoVertexIndex(self, gv):
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index = self.geovertex_map.get(gv, len(self.geovertex))
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if index == len(self.geovertex):
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self.geovertex_map[gv] = index
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self.geovertex.append(gv)
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return index
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def getTextureIndex(self, name):
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index = self.textures_map.get(name, len(self.textures))
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if index == len(self.textures):
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self.textures_map[name] = index
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self.textures.append(name)
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return index
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def getWeightIndex(self, name):
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index = self.weights_map.get(name, len(self.weights))
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if index == len(self.weights):
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self.weights_map[name] = index
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self.weights.append(name)
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return index
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def addFace(self, geovertices, texture_name):
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l = len(geovertices)
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if l > 3:
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#Do a naive conversion to a triangle fan, add each of those triangles as a face. Will give bad results in shape is not convex.
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#Choose the start point as the one closest to the origin. Ties are resolved by lexical comparison of the coordinates.
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start = 0
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start_dist = geovertices[0].coord.magnitude
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for i in range(1, len(geovertices)):
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dist = geovertices[i].coord.magnitude
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if dist < start_dist:
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start = i
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start_dist = dist
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elif dist == start_dist:
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for j in range(3):
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if geovertices[i].coord[j] < geovertices[start].coord[j]:
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start = i
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start_dist = dist
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break
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for i in range(2, len(geovertices)):
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i1 = (start + i - 1) % l
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i2 = (start + i) % l
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self.addFace([geovertices[start], geovertices[i1], geovertices[i2]], texture_name)
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return
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elif l < 3:
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return
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for i in range(3):
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for w in geovertices[i].weights:
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w[0] = self.getWeightIndex(w[0])
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self.have_weights = True
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geovertices_index = [self.getGeoVertexIndex(geovertices[0]),
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self.getGeoVertexIndex(geovertices[1]),
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self.getGeoVertexIndex(geovertices[2])]
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self.face.append(GeoFace(geovertices_index, self.getTextureIndex(texture_name)))
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pass
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def sortFaces(self):
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#Sort faces so they're grouped by texture index.
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#todo:
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pass
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def dump(self):
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print("GeoMesh:")
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print(" Textures: %s" % (self.textures, ))
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print(" Weights: %s" % (self.weights, ))
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print(" Vertices:")
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for i, v in enumerate(self.geovertex):
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v.dump()
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print(" Faces:")
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for i, f in enumerate(self.face):
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f.dump()
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@ -0,0 +1 @@
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