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import_shape_m3.py
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# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# ##### END GPL LICENCE BLOCK #####
# M3 Importer by Alexander Stante ([email protected])
#
# This script imports the M3 file into Blender for editing
import bpy
import os
from bpy.props import *
from struct import unpack_from, calcsize
from os.path import basename
from mathutils import Matrix
from mathutils import Vector
from bpy_extras.io_utils import ImportHelper
bl_info = {
'name' : 'Import Blizzard M3 Models(.m3)',
'author' : 'Alexander Stante',
'version' : (0, 14),
'blender' : (2, 80, 0),
"api" : 31667,
'location' : 'File > Import ',
'description': 'Import the Blizzard M3 Model Format(.m3)',
'warning' : 'Alpha',
'wiki_url' : 'https://github.com/stante/blendm3',
'tracker_url': 'https://github.com/stante/blendm3/issues',
'category' : 'Import/Export'
}
# M3 File representation encapsulating file handle
class M3File:
def __init__(self, filepath):
self.file = open(filepath, "rb")
self.ReferenceTable = []
def seek(self, position, offset):
self.file.seek(position, offset)
def seek(self, position):
self.file.seek(position, 0)
def skip_bytes(self, count):
self.file.seek(count, 1)
def read_bytes(self, count):
return unpack_from("<" + str(count) + "B", self.file.read(calcsize("<" + str(count) + "B")))
def read_uint(self):
(unsignedInt, ) = unpack_from("<I", self.file.read(calcsize("<I")))
return unsignedInt
def read_short(self):
(short, ) = unpack_from("<h", self.file.read(calcsize("<h")))
return short
def read_ushort(self):
(unsignedShort, ) = unpack_from("<H", self.file.read(calcsize("<H")))
return unsignedShort
def read_float(self):
(unsignedShort, ) = unpack_from("<f", self.file.read(calcsize("<f")))
return unsignedShort
def readArrayUnsignedShort(self, count):
return unpack_from("<" + str(count) + "H", self.file.read(calcsize("<" + str(count) + "H")))
def readArraySignedShort(self, count):
return unpack_from("<" + str(count) + "h", self.file.read(calcsize("<" + str(count) + "h")))
def read_vector(self):
return unpack_from("<3f", self.file.read(calcsize("<3f")))
def read_hvector(self):
return unpack_from("<4f", self.file.read(calcsize("<4f")))
def read_string(self, count):
(string, ) = unpack_from("<" + str(count) + "s", self.file.read(calcsize("<" + str(count) + "s")))
return string
def read_id(self):
id = self.read_string(4)
return id[::-1]
def read_reference_entry(self):
ref = M3Reference(self)
if (ref.Index != 0):
return self.ReferenceTable[ref.Index]
else:
return self.ReferenceTable[ref.Index]
# In non debug should return None
# return None
def read_CHAR(self, entry):
offset = entry.Offset
count = entry.Count
self.file.seek(offset)
string = self.read_string(count)
string = string[0:-1].decode("ascii")
return string
def read_reference_by_id(self):
entry = self.read_reference_entry()
# Check for 'null' reference, return empty list
#print(entry.Id)
if (entry.Offset == 0):
return None
position = self.file.tell()
if (entry.Id == b'CHAR'):
result = self.read_CHAR(entry)
elif (entry.Id == b'LAYR'):
result = self.read_LAYR(entry)
elif (entry.Id == b'MAT_'):
result = self.read_MAT(entry)
elif (entry.Id == b'MATM'):
result = self.read_MATM(entry)
elif (entry.Id == b'REGN'):
result = self.read_REGN(entry)
elif (entry.Id == b'BAT_'):
result = self.read_BAT(entry)
elif (entry.Id == b'MSEC'):
result = self.read_MSEC(entry)
elif (entry.Id == b'U16_'):
result = self.readIndices(entry)
elif (entry.Id == b'DIV_'):
result = self.read_DIV(entry)
elif (entry.Id == b'STC_'):
result = self.read_STC(entry)
elif (entry.Id == b'U32_'):
result = self.read_U32(entry)
elif (entry.Id == b'BONE'):
result = self.read_BONE(entry)
elif (entry.Id == b'IREF'):
result = self.read_IREF(entry)
else:
#raise Exception('import_m3: !ERROR! Unsupported reference format. Format: %s Count: %s' % (str(entry.Id), str(entry.Count)))
print('import_m3: !ERROR! Unsupported reference format. Format: %s Count: %s' % (str(entry.Id), str(entry.Count)))
return entry
self.file.seek(position)
return result
def read_STC(self, reference):
stc = []
count = reference.Count
offset = reference.Offset
self.file.seek(offset)
for i in range(count):
stc.append(STC(self))
return stc
def read_MATM(self, reference):
matm = []
count = reference.Count
offset = reference.Offset
self.file.seek(offset)
for i in range(count):
matm.append(MATM(self))
return matm
def read_LAYR(self, reference):
layr = 0
count = reference.Count
offset = reference.Offset
self.file.seek(offset)
if count != 1:
raise Exception("Unsupported LAYR count")
return LAYR(self)
def readIndices(self, reference):
faces = []
count = reference.Count
offset = reference.Offset
self.file.seek(offset)
for i in range(count):
faces.append(self.read_ushort())
return faces
def read_REGN(self, reference):
regions = []
count = reference.Count
offset = reference.Offset
self.file.seek(offset)
for i in range(count):
regions.append(REGN(self))
return regions
def read_BAT(self, reference):
bat = []
count = reference.Count
offset = reference.Offset
self.file.seek(offset)
for i in range(count):
bat.append(BAT(self))
return bat
def read_MSEC(self, reference):
return 0
def read_MAT(self, reference):
mat = []
count = reference.Count
offset = reference.Offset
self.file.seek(offset)
for i in range(count):
mat.append(MAT(self))
return mat
def read_DIV(self, reference):
div = []
count = reference.Count
offset = reference.Offset
self.file.seek(offset)
for i in range(count):
div.append(DIV(self))
return div
def read_U32(self, reference):
u32 = []
count = reference.Count
offset = reference.Offset
self.file.seek(offset)
for i in range(count):
u32.append(self.read_uint)
return u32
def read_BONE(self, reference):
bones = []
count = reference.Count
offset = reference.Offset
self.file.seek(offset)
for i in range(count):
bones.append(BONE(self))
return bones
def read_IREF(self, reference):
matrices = []
count = reference.Count
offset = reference.Offset
self.file.seek(offset)
for i in range(count):
matrices.append(IREF(self))
return matrices
class IREF:
def __init__(self, file):
v1 = file.read_hvector()
v2 = file.read_hvector()
v3 = file.read_hvector()
v4 = file.read_hvector()
self.matrix = Matrix((v1, v2, v3, v4)).transpose()
#print(self.matrix)
class BONE:
def __init__(self, file):
# TODO all signed!!!
self.d1 = file.read_uint()
self.name = file.read_reference_by_id()
self.flags = file.read_uint()
self.parent = file.read_short()
self.s1 = file.read_short()
self.floats = []
for i in range(34):
self.floats.append(file.read_float())
#print("Name: %s, Parent: %d, Flags: %s" % (self.name, self.parent, hex(self.flags)))
class STC:
def __init__(self, file):
self.name = file.read_reference_by_id()
self.d1 = file.read_uint()
self.indSTC = file.read_uint()
self.animid = file.read_reference_by_id()
self.animindex = file.read_reference_by_id()
self.d2 = file.read_uint()
self.seq_data = []
for i in range(13):
self.seq_data.append(file.read_reference_by_id())
#print("STC-------------------------------")
#print("Name: %s" % self.name)
#print("IndStc: %d" % self.indSTC)
#print("----------------------------------")
class MATM:
#TYPES = {'MAT':1, 'DIS':2, 'CMP':3, 'TER':4, 'VOL':5}
TYPES = {1:'MAT', 2:'DIS', 3:'CMP', 4:'TER', 5:'VOL'}
def __init__(self, file):
self.material_type = MATM.TYPES[file.read_uint()]
self.MaterialIndex = file.read_uint()
if (self.material_type != 'MAT'):
print("Unsupported material type")
def set_flags(bits, flag_defines):
flags = {}
for flag_name, mask in flag_defines.items():
if bits & mask is not 0:
flags[flag_name] = True
else:
flags[flag_name] = False
return flags
class LAYR:
#TYPES = [('COLOR', 0), ('SPECULARITY', 2), ('COLOR', 3), ('NORMAL', 9)]
#TYPES = {'DIFFUSE':0, 'DECAL':1, 'SPECULAR':2, 'SELF_ILLUMINATION':3, 'EMISSIVE':4, 'ENVIO':5, 'ENVIO_MASK':6, 'ALPHA':7, 'UNKNOWN':8, 'NORMAL':9, 'HEIGHT':10}
TYPES = {0:'DIFFUSIVE', 1:'DECAL', 2:'SPECULAR', 3:'EMISSIVE',
4:'EMISSIVE_COLOR', 5:'ENVIO', 6:'ENVIO_MASK', 7:'ALPHA', 8:'UNKNOWN1',
9:'NORMAL', 10:'HEIGHT', 11:'UNKNOWN2', 12:'UNKNOWN3'}
def __init__(self, file):
file.skip_bytes(4)
self.Path = file.read_reference_by_id()
class MAT:
FLAGS = {'UNFOGGED_1' :0x4,
'TWO_SIDED' :0x8,
'UNSHADED' :0x10,
'NO_SHADOW_CAST' :0x20,
'NO_HIT' :0x40,
'NO_SHADOW_RECEIVED':0x80,
'DEPTH_PREPASS' :0x100,
'USE_TERRAIN_HDR' :0x200,
'SPLAT_UV_FIX' :0x800,
'SOFT_BLENDING' :0x1000,
'UNFOGGED_2' :0x2000}
BLEND_MODE = {'OPAQUE' :0,
'ALPHA_BLEND':1,
'ADD' :2,
'ALPHA_ADD' :3,
'MOD' :4,
'MOD2X' :5}
def __init__(self, file):
# Read chunk
self.Name = file.read_reference_by_id()
self.D1 = file.read_uint()
self.flags = set_flags(file.read_uint(), MAT.FLAGS)
self.BlendMode = file.read_uint()
self.Priority = file.read_uint()
self.D2 = file.read_uint()
self.specularity = file.read_float()
self.F1 = file.read_float()
self.CutoutThreshold = file.read_uint()
self.specular_multiplier = file.read_float()
self.EmissiveMultiplier = file.read_float()
self.Layers = {}
for i in range(13):
layer = file.read_reference_by_id()
# Layer only exists if they have a path entry
if (layer.Path != None and layer.Path != ""):
self.Layers[LAYR.TYPES[i]] = layer
self.D3 = file.read_uint()
self.LayerBlend = file.read_uint()
self.EmissiveBlend = file.read_uint()
self.D4 = file.read_uint()
self.specular_type = file.read_uint()
file.skip_bytes(2*0x14)
#print("spec: %f, %f, %d" % (self.specularity, self.specular_multiplier, self.specular_type))
class BAT:
def __init__(self, file):
file.skip_bytes(4)
self.REGN_Index = file.read_ushort()
file.skip_bytes(4)
self.MAT_Index = file.read_ushort()
file.skip_bytes(2)
#print("BAT---------------------------------------------")
#print("REGN Index : " + str(self.REGN_Index))
#print("MAT Index : " + str(self.MAT_Index))
#print("------------------------------------------------")
class M3Reference:
def __init__(self, file):
self.Count = file.read_uint()
self.Index = file.read_uint()
self.Flags = file.read_uint()
class REGN:
def __init__(self, file):
self.D1 = file.read_uint()
self.D2 = file.read_uint()
self.OffsetVert = file.read_uint()
self.NumVert = file.read_uint()
self.OffsetFaces = file.read_uint()
self.NumFaces = file.read_uint()
self.BoneCount = file.read_ushort()
self.IndBone = file.read_ushort()
self.NumBone = file.read_ushort()
self.s1 = file.readArrayUnsignedShort(3)
# TODO read bat and msec
class DIV:
def __init__(self, file):
print("Read Indices")
self.Indices = file.read_reference_by_id()
self.Regions = file.read_reference_by_id()
self.Bat = file.read_reference_by_id()
self.Msec = file.read_reference_by_id()
#print("M3Div-------------------------------------------")
#print("Vertex List Count : " + str(referenceIndices.Count))
#print("Vertex List Offset : " + hex(referenceIndices.Offset))
#print("DIV List Count : " + str(referenceRegions.Count))
#print("DIV List Offset : " + hex(referenceRegions.Offset))
#print("BAT List Count : " + str(referenceBat.Count))
#print("BAT List Offset : " + hex(referenceBat.Offset))
#print("MSEC List Count : " + str(referenceMsec.Count))
#print("MSEC List Offset : " + hex(referenceMsec.Offset))
#print("------------------------------------------------")
# VERTEX_TYPE stores the amount of UV per vertex
VERTEX_TYPE = {'VERTEX32':1, 'VERTEX36':2, 'VERTEX40':3, 'VERTEX44':4}
class M3Vertex:
def __init__(self, file, type, flags):
self.type = type
self.Position = file.read_vector()
self.BoneWeight = file.read_bytes(4)
self.BoneIndex = file.read_bytes(4)
self.Normal = file.read_bytes(4)
self.UV = []
# Vertex type specifies how many UV entries the Vertex format contains
for i in range(VERTEX_TYPE[type]):
(u, v) = file.readArraySignedShort(2)
u = u / 2048.0
v = v / 2048.0
v = 1 - v
self.UV.append((u,v))
# Further investigation of this flag needed
if ((flags & 0x200) != 0):
file.skip_bytes(4)
self.Tangent = file.read_bytes(4)
class MODL23:
def __init__(self):
self.Flags = 0
self.Vertices = []
self.Faces = []
self.Materials = []
def read(file):
m3model = MODL23()
m3model.name = file.read_reference_by_id()
m3model.version = file.read_uint()
m3model.SEQS = file.read_reference_by_id()
m3model.STC = file.read_reference_by_id()
m3model.STG = file.read_reference_by_id()
file.skip_bytes(0x1c)
m3model.Bones = file.read_reference_by_id()
m3model.d5 = file.read_uint()
m3model.Flags = file.read_uint()
vertexReference = file.read_reference_entry()
m3model.Div = file.read_reference_by_id()[0] # expecting only one Div Entry
m3model.BonesI = file.read_reference_by_id()
# Bounding Sphere
vector0 = file.read_vector()
vector1 = file.read_vector()
radius = file.read_float()
flags = file.read_uint()
file.skip_bytes(0x3C)
m3model.Attachments = file.read_reference_by_id()
m3model.AttachmentLookup = file.read_reference_by_id()
m3model.Lights = file.read_reference_by_id()
m3model.SHBX = file.read_reference_by_id()
m3model.Cameras = file.read_reference_by_id()
m3model.D = file.read_reference_by_id()
m3model.MaterialLookup = file.read_reference_by_id()
m3model.Materials = file.read_reference_by_id()
m3model.Displacement = file.read_reference_by_id()
m3model.CMP = file.read_reference_by_id()
m3model.TER = file.read_reference_by_id()
#m3model.VOL = file.read_reference_by_id()
#m3model.d21 = file.read_uint()
#m3model.d22 = file.read_uint()
#m3model.CREP = file.read_reference_by_id()
#m3model.PAR = file.read_reference_by_id()
#m3model.PARC = file.read_reference_by_id()
#m3model.RIB = file.read_reference_by_id()
#m3model.PROJ = file.read_reference_by_id()
#m3model.FOR = file.read_reference_by_id()
#m3model.WRP = file.read_reference_by_id()
#m3model.d24 = file.read_uint()
#m3model.d25 = file.read_uint()
#m3model.PHRB = file.read_reference_by_id()
#m3model.d27 = file.read_uint()
#m3model.d28 = file.read_uint()
#m3model.d29 = file.read_uint()
#m3model.d30 = file.read_uint()
#m3model.d32 = file.read_uint()
#m3model.d33 = file.read_uint()
#m3model.IKJT = file.read_reference_by_id()
#m3model.d35 = file.read_uint()
#m3model.d36 = file.read_uint()
#m3model.PATU = file.read_reference_by_id()
#m3model.TRGD = file.read_reference_by_id()
file.skip_bytes(0xD8)
m3model.IREF = file.read_reference_by_id()
# Reading Vertices
count = 0
type = 0
if ((m3model.Flags & 0x100000) != 0):
count = vertexReference.Count // 44
type = 'VERTEX44'
elif ((m3model.Flags & 0x80000) != 0):
count = vertexReference.Count // 40
type = 'VERTEX40'
elif ((m3model.Flags & 0x40000) != 0):
count = vertexReference.Count // 36
type = 'VERTEX36'
elif ((m3model.Flags & 0x20000) != 0):
count = vertexReference.Count // 32
type = 'VERTEX32'
else:
raise Exception('import_m3: !ERROR! Unsupported vertex format. Flags: %s' % hex(m3model.Flags))
print("Reading %s vertices, Flags: %s" % (count, hex(m3model.Flags)))
file.seek(vertexReference.Offset)
for i in range(count):
m3model.Vertices.append(M3Vertex(file, type, m3model.Flags))
submeshes = []
Div = m3model.Div
for i, bat in enumerate(Div.Bat):
regn = Div.Regions[bat.REGN_Index]
offset = regn.OffsetVert
count = regn.NumVert
vertices = m3model.Vertices[offset:offset + count]
faces = []
for j in range(regn.OffsetFaces, regn.OffsetFaces + regn.NumFaces, 3):
faces.append((Div.Indices[j], Div.Indices[j+1], Div.Indices[j+2]))
submesh = Submesh(vertices, faces, m3model.Materials[m3model.MaterialLookup[bat.MAT_Index].MaterialIndex], m3model.IREF, m3model.Bones)
submeshes.append(submesh)
return submeshes
class M3ReferenceEntry:
def __init__(self, file):
self.Id = file.read_id()
self.Offset = file.read_uint()
self.Count = file.read_uint()
self.Type = file.read_uint()
# def print(self):
# DEBUG
#print("M3ReferenceEntry--------------------------------")
#print("Id: " + str(self.Id))
#print("Offset: " + hex(self.Offset))
#print("Count: " + hex(self.Count))
#print("Type: " + hex(self.Type))
#print("------------------------------------------------")
class M3Header:
def __init__(self, file):
self.id = file.read_id()
if self.id != b'MD34':
raise Exception('import_m3: !ERROR! Unsupported file format: %s' % self.id)
reference_table_offset = file.read_uint()
reference_table_count = file.read_uint()
model_count = file.read_uint()
model_index = file.read_uint()
file.seek(reference_table_offset)
# Creating reference table
for i in range(reference_table_count):
file.ReferenceTable.append(M3ReferenceEntry(file))
# Creating models
modelReference = file.ReferenceTable[model_index]
if (modelReference.Type != 23):
raise Exception('import_m3: !ERROR! Unsupported model format: %s' % hex(modelReference.Type))
file.seek(modelReference.Offset)
assert(modelReference.Count == 1)
self.m3Model = MODL23.read(file)
def createArmatures(bones, irefs):
bpy.ops.object.add(
type='ARMATURE',
enter_editmode=True,
location=[0, 0, 0])
ob = bpy.context.object
ob.x_ray = True
ob.name = 'SC2Armature'
amt = ob.data
amt.name = 'SC2ArmatureAMT'
amt.draw_axes = True
bpy.ops.object.mode_set(mode='EDIT')
# building hierarchy
bone_list = []
for i, b in enumerate(bones):
new_bone = amt.edit_bones.new(b.name)
if b.parent is not -1:
new_bone.parent = bone_list[b.parent]
bone_list.append(new_bone)
# calculating
for i, b in enumerate(bone_list):
v = Vector([0, 0, 0, 1])
m = irefs[i].matrix
if b.parent is not None:
b.tail = b.parent.head
else:
b.head = Vector([0,0,0])
b.head = b.tail + (v*m).resize3D()
#print(b.tail)
#for i, b in enumerate(bone_list):
# v = Vector([0,0,0,1])
# v = v * irefs[i].matrix
# parent = bones[i].parent
# while parent is not -1:
# v = v * irefs[parent].matrix
# parent = bones[parent].parent
# b.head = v.resize3D()
#for i, b in enumerate(bone_list):
# if b.parent is not None:
# b.tail = b.parent.head
def createNodeMaterial(material):
mat = bpy.data.materials.new(material.Name)
mat.use_nodes = True
diffuse_bsdf = mat.node_tree.nodes['Diffuse BSDF']
material_out = mat.node_tree.nodes['Material Output']
for key in material.Layers.keys():
print("Material: ", key, " Path: ", material.Layers[key].Path)
# Diffusive
if ('DIFFUSIVE' in material.Layers):
layer = material.Layers['DIFFUSIVE']
tex = createTexture(material.Name + "_DIFFUSIVE", layer.Path)
if tex is not None:
node = mat.node_tree.nodes.new('ShaderNodeTexImage')
node.image = tex.image
mat.node_tree.links.new(diffuse_bsdf.inputs['Color'], node.outputs['Color'])
# Normal
if ('NORMAL' in material.Layers):
layer = material.Layers['NORMAL']
tex = createTexture(material.Name + "_NORMAL", layer.Path)
if tex is not None:
node = mat.node_tree.nodes.new('ShaderNodeTexImage')
node.image = tex.image
mat.node_tree.links.new(diffuse_bsdf.inputs['Normal'], node.outputs['Color'])
# Emissive
if ('EMISSIVE' in material.Layers):
layer = material.Layers['EMISSIVE']
tex = createTexture(material.Name + "_EMISSIVE", layer.Path)
if tex is not None:
node = mat.node_tree.nodes.new('ShaderNodeTexImage')
emissive = mat.node_tree.nodes.new('ShaderNodeEmission')
node.image = tex.image
mat.node_tree.links.new(emissive.inputs['Color'], node.outputs['Color'])
mixer = mat.node_tree.nodes.new('ShaderNodeMixShader')
mat.node_tree.links.new(emissive.outputs['Emission'], mixer.inputs[2])
mat.node_tree.links.new(diffuse_bsdf.outputs['BSDF'], mixer.inputs[1])
mat.node_tree.links.new(mixer.outputs['Shader'], material_out.inputs['Surface'])
emissive.inputs['Strength'].default_value = 2.0
# Emissive and Mixer Node
return mat
def createMaterial(material):
mat = bpy.data.materials.new(material.Name)
# Material options
#mat.shadeless = not material.flags['UNSHADED']
mat.use_shadeless = False
mat.use_shadows = not material.flags['NO_SHADOW_RECEIVED']
mat.use_cast_buffer_shadows = not material.flags['NO_SHADOW_CAST']
#mat.specular_intensity = material.specularity
mat.specular_intensity = 0.0
#=============================================================
# Create Diffusive
#=============================================================
if ('DIFFUSIVE' in material.Layers):
layer = material.Layers['DIFFUSIVE']
tex = createTexture(material.Name + "_DIFFUSIVE", layer.Path)
if tex is not None:
tex.use_alpha = False
slot = mat.texture_slots.add()
slot.texture = tex
slot.texture_coords = 'UV'
slot.use_map_diffuse = True
slot.use_map_color_diffuse = True
#=============================================================
# Create Decal
#=============================================================
if ('DECAL' in material.Layers):
layer = material.Layers['DECAL']
tex = createTexture(material.Name + "_DECAL", layer.Path)
if tex is not None:
tex.use_alpha = True
tex.extension = 'CLIP'
#tex.image.use_premultiply = True
slot = mat.texture_slots.add()
slot.texture = tex
slot.texture_coords = 'UV'
slot.use_map_diffuse = True
slot.use_map_color_diffuse = True
slot.uv_layer = 'UV_1'
#==============================================================
# Create Specular
#==============================================================
if ('SPECULAR in material.Layers'):
layer = material.Layers['SPECULAR']
tex = createTexture(material.Name + "_SPECULAR", layer.Path)
if tex is not None:
tex.use_alpha = False
slot = mat.texture_slots.add()
slot.texture = tex
slot.texture_coords = 'UV'
slot.use_map_color_diffuse = False
slot.use_map_specular = True
#slot.use_map_color_spec = True
slot.specular_factor = 0.2
#==============================================================
# Create Normal
#==============================================================
if ('NORMAL' in material.Layers):
layer = material.Layers['NORMAL']
tex = createTexture(material.Name + "_NORMAL", layer.Path)
if tex is not None:
slot = mat.texture_slots.add()
slot.texture = tex # (texture=tex, texture_coordinates='UV', map_to='NORMAL')
slot.texture_coords = 'UV'
slot.use_map_color_diffuse = False
slot.use_map_normal = True
#=============================================================
# Create Emissive Color
#=============================================================
#emissive_layer = material.Layers['EMISSIVE_COLOR']
#tex = createTexture(material.Name + "_EMISSIVE_COLOR", layer.Path)
#tex.use_calculate_alpha = True
#tex.use_alpha = True
#slot = mat.texture_slots.add()
#slot.texture = tex
#slot.texture_coords = 'UV'
#slot.use_map_color_diffuse = True
#slot.use_map_emit = False
#=============================================================
# Create Emissive
#=============================================================
if ('EMISSIVE' in material.Layers):
layer = material.Layers['EMISSIVE']
tex = createTexture(material.Name + "_EMISSIVE", layer.Path)
if tex is not None:
tex.use_calculate_alpha = True
tex.use_alpha = True
slot = mat.texture_slots.add()
slot.texture = tex
slot.texture_coords = 'UV'
slot.use_map_color_diffuse = False
slot.use_map_emit = True
return mat
def findImage(image_path):
'''Finds the image on the file system and returns the path, if the
file exists'''
filename = basename(image_path)
if os.path.isfile(image_path):
return image_path
# Search for filename in all subdirectories
for prefix, directories, files in os.walk("."):
if filename in files:
return prefix + "/" + filename
return None
def createTexture(name, filepath):
realpath = os.path.abspath(filepath)
realpath = os.path.normpath(realpath)
imagepath = findImage(realpath)
if imagepath:
tex = bpy.data.textures.new(name, 'IMAGE')
try:
tex.image = bpy.data.images.load(imagepath)
print("Importing image: %s ok." % imagepath)
except Exception as err:
print("Cannot load texture: %s (%s)" % (realpath, str(err)))
return None
else:
print("Importing image: %s failed." % basename(realpath))
return None
return tex
class Submesh:
def __init__(self, vertices, faces, material, iref, bones):
self.Name = "NONAME"
self.Vertices = []
# TODO: maybe better to unflatten here instead of in calling function
self.Faces = faces
self.UV = []
self.Material = material
self.bones = bones
self.iref = iref
# position in vertices array
for v in vertices:
self.Vertices.append(v.Position)
for i, f in enumerate(self.Faces):
#self.UV1.append(((vertices[f[0]].UV[0]), (vertices[f[1]].UV[0]), (vertices[f[2]].UV[0])))
self.UV.append(((vertices[f[0]].UV), (vertices[f[1]].UV), (vertices[f[2]].UV)))
def load(context, filepath, import_material, search_textures):
file = M3File(filepath)
# Reading file header
m3Header = M3Header(file)
name = basename(filepath)
index = filepath.rfind('Assets')
if search_textures == True and index is not -1:
workdir = filepath[0:index]
os.chdir(workdir)
else:
os.chdir(os.path.dirname(filepath))
for submesh in m3Header.m3Model:
mesh = bpy.data.meshes.new(name)
mesh.from_pydata(submesh.Vertices, [], submesh.Faces)
mesh.uv_textures.new()
mesh.uv_textures.new()
mesh.uv_textures.new()
mesh.uv_textures.new()
mesh.uv_textures[0].name = 'UV_0'
mesh.uv_textures[1].name = 'UV_1'
mesh.uv_textures[2].name = 'UV_2'
mesh.uv_textures[3].name = 'UV_3'
for i, face in enumerate(submesh.UV):
for l in range(len(face[0])):
data = mesh.uv_layers[l].data[i]
mesh.uv_layers[l].data[i*3 + 0].uv = face[0][l]