def read_bone_header(f):
next_addr = f.tell() + 0x44
bone_name = util.readstring(f)
f.seek(next_addr)
bone_parent = util.readshort(f, True)
if bone_parent == 0xFFFF: bone_parent = -1
f.seek(0x02, 1)
bone_uid = util.readlong(f, True)
return {
'name': bone_name,
'parent': bone_parent,
'uid': bone_uid
}
def read(nud_path):
polys = []
verts = []
normals = []
uvs = [[], [], [], []]
colors = []
alphas = []
bones = []
weights = []
skin_indices = []
skin_weights = []
faces = []
f = open(nud_path, 'rb')
assert f.read(4) == b'NDP3'
util.log('\nReading NUD', nud_path, level=util.LOG_INFO)
file_size = util.readlong(f)
f.seek(0x02, 1) # H
polyset_count = util.readshort(f)
f.seek(0x04, 1) # HH
# clump offsets and sizes
face_clump_start = util.readlong(f) + 0x30
face_clump_size = util.readlong(f)
vert_clump_start = (face_clump_start + face_clump_size)
vert_clump_size = util.readlong(f)
vert_add_clump_start = (vert_clump_start + vert_clump_size)
vert_add_clump_size = util.readlong(f)
name_clump_start = (vert_add_clump_start + vert_add_clump_size)
f.seek(0x10, 1) # IIII
bodygroups = {}
for i in range(polyset_count):
buf = b''
for j in range(8):
buf += f.read(4)
# f.seek(0x20, 1) # ffffffff
name_start = util.readlong(f)
identifiera = util.readlong(f)
singlebind = util.readshort(f)
if singlebind == 0xFFFF:
singlebind = 1
else:
singlebind += 1
poly_count = util.readshort(f)
positionb = util.readlong(f)
for j in range(poly_count):
polys.append({
'name': name_start,
'identifiera': identifiera,
'positionb': positionb,
'singlebind': singlebind,
'pgroup': i,
'garbage': buf
})
util.log('{:d} objects found in {:d} polysets'.format(len(polys), polyset_count), level=util.LOG_INFO)
for i, poly in enumerate(polys):
next_poly_addr = f.tell() + 0x30
face_start = util.readlong(f) + face_clump_start
vert_start = util.readlong(f) + vert_clump_start
vert_add_start = util.readlong(f) + vert_add_clump_start
vert_count = util.readshort(f)
vert_size = util.readbyte(f)
uv_size = util.readbyte(f)
tex1_props = util.readlong(f)
tex2_props = util.readlong(f)
tex3_props = util.readlong(f)
tex4_props = util.readlong(f)
face_count = util.readshort(f)
face_size = util.readbyte(f)
face_flags = util.readbyte(f)
vert_len = int(len(verts) / 3)
# get mystery clump
f.seek(poly['positionb'])
mystery = f.read(0x60)
mystery = binascii.hexlify(mystery)
mbuf = ''
for mi in range(len(mystery)):
mbuf += chr(mystery[mi])
if mi > 0 and not ((mi + 1) % 8):
mbuf += ' '
f.seek(poly['positionb'] + 0x3c)
bodygroup_id = util.readlong(f)
# if bodygroup_id in bodygroups and bodygroups[bodygroup_id] != poly['pgroup']:
# f.seek(next_poly_addr)
# print('ignore')
# continue
bodygroups[bodygroup_id] = poly['pgroup']
# get name
f.seek(name_clump_start + poly['name'])
poly_name = util.readstring(f)
util.log('obj {:03d} "{:s}": {:d} verts, {:d} faces. Bodygroup? {:08x}, IdentifierA {:08x}' \
.format(i, poly_name, int(vert_count / 3), int(face_count / 3), bodygroup_id, poly['identifiera']), level=util.LOG_DEBUG)
util.log('debug: ', mbuf, level=util.LOG_DEBUG)
util.log('debug: ', binascii.hexlify(poly['garbage']), level=util.LOG_DEBUG)
# read texture properties
# f.seek(tex1_props)
# f.seek(0x0a, 1) # bbbbIH
# layer_write = [0, 0, 0, 0] # UNUSED
# tex_prop_count = util.readshort(f)
# f.seek(0x14, 1) # bbbbIIII
# for j in range(tex_prop_count):
# f.seek(0x02, 1) # bb
# tex_num = util.readshort(f)
# f.seek(0x14, 1) # IIbbbbbbbbI
# layer_write[j] = 1
# # polys[i]['tex_{:d}_num'.format(j)] = tex_num
# read vertices
f.seek(vert_start)
if vert_size < 0x40:
for j in range(vert_count):
if vert_size == 0x08:
vx = 0
vy = 0
vz = 0
else:
vx = util.readfloat(f)
vy = util.readfloat(f)
vz = util.readfloat(f)
verts.extend((vx, vy, vz))
bones.extend((poly['singlebind'], 0, 0, 0))
weights.extend((1, 0, 0, 0))
#print('read vert', hex(f.tell() - 0xC), verts[-3:])
if vert_size == 0x00:
f.seek(0x04, 1) # f
elif vert_size == 0x06:
nx = util.readhalffloat(f)
ny = util.readhalffloat(f)
nz = util.readhalffloat(f)
nq = util.readhalffloat(f)
normals.extend((nx, ny, nz, nq))
elif vert_size == 0x07:
nx = util.readhalffloat(f)
ny = util.readhalffloat(f)
nz = util.readhalffloat(f)
nq = util.readhalffloat(f)
nx2 = util.readhalffloat(f)
ny2 = util.readhalffloat(f)
nz2 = util.readhalffloat(f)
nq2 = util.readhalffloat(f)
nx3 = util.readhalffloat(f)
ny3 = util.readhalffloat(f)
nz3 = util.readhalffloat(f)
nq3 = util.readhalffloat(f)
normals.extend((nx, ny, nz, nq))
elif vert_size == 0x08:
nx = util.readhalffloat(f)
ny = util.readhalffloat(f)
nz = util.readhalffloat(f)
nq = util.readhalffloat(f)
nx2 = util.readhalffloat(f)
ny2 = util.readhalffloat(f)
nz2 = util.readhalffloat(f)
nq2 = util.readhalffloat(f)
nx3 = util.readhalffloat(f)
normals.extend((nx, ny, nz, nq))
crgb = (255, 255, 255)
ca = 255
if vert_size == 0x00 or \
(uv_size == 0x12 or uv_size == 0x22 or uv_size == 0x42):
crgb = (util.readbyte(f), util.readbyte(f), util.readbyte(f))
ca = util.readbyte(f) / 127.0
if ca >= 254: ca = 255
colors.extend(crgb)
alphas.append(ca)
if uv_size >= 0x12:
v_uvs = []
tu = util.readhalffloat(f) * 2
tv = (util.readhalffloat(f) * -2) + 1
v_uvs.append((tu, tv, 0))
if uv_size >= 0x22:
tu2 = util.readhalffloat(f) * 2
tv2 = (util.readhalffloat(f) * -2) + 1
v_uvs.append((tu2, tv2, 0))
if uv_size >= 0x32:
tu3 = util.readhalffloat(f) * 2
tv3 = (util.readhalffloat(f) * -2) + 1
v_uvs.append((tu3, tv3, 0))
if uv_size >= 0x42:
tu4 = util.readhalffloat(f) * 2
tv4 = (util.readhalffloat(f) * -2) + 1
v_uvs.append((tu4, tv4, 0))
uvs.extend(v_uvs)
else:
if uv_size >= 0x10:
for j in range(vert_count):
crgb = (127, 127, 127)
ca = 1.0
if uv_size >= 0x12:
crgb = (util.readbyte(f), util.readbyte(f), util.readbyte(f))
ca = util.readbyte(f) / 127.0
if ca >= 254: ca = 255
colors.extend(crgb)
alphas.append(ca)
v_uvs = []
tu = util.readhalffloat(f) * 2
tv = (util.readhalffloat(f) * -2) + 1
v_uvs.append((tu, tv, 0))
if uv_size >= 0x22:
tu2 = util.readhalffloat(f) * 2
tv2 = (util.readhalffloat(f) * -2) + 1
v_uvs.append((tu2, tv2, 0))
if uv_size >= 0x32:
tu3 = util.readhalffloat(f) * 2
tv3 = (util.readhalffloat(f) * -2) + 1
v_uvs.append((tu3, tv3, 0))
if uv_size >= 0x42:
tu4 = util.readhalffloat(f) * 2
tv4 = (util.readhalffloat(f) * -2) + 1
v_uvs.append((tu4, tv4, 0))
uvs.extend(v_uvs)
else:
for j in range(vert_count):
crgb = (127, 127, 127)
ca = 1.0
colors.extend(crgb)
alphas.append(ca)
f.seek(vert_add_start)
for j in range(vert_count):
vx = util.readfloat(f)
vy = util.readfloat(f)
vz = util.readfloat(f)
#print('read vert', hex(f.tell() - 0xC), verts[-3:])
if vert_size == 0x40:
f.seek(0x04, 1) # f
elif vert_size == 0x46:
nx = util.readhalffloat(f)
ny = util.readhalffloat(f)
nz = util.readhalffloat(f)
nq = util.readhalffloat(f)
normals.extend((nx, ny, nz, nq))
elif vert_size == 0x47:
nx = util.readhalffloat(f)
ny = util.readhalffloat(f)
nz = util.readhalffloat(f)
nq = util.readhalffloat(f)
nx2 = util.readhalffloat(f)
ny2 = util.readhalffloat(f)
nz2 = util.readhalffloat(f)
nq2 = util.readhalffloat(f)
nx3 = util.readhalffloat(f)
ny3 = util.readhalffloat(f)
nz3 = util.readhalffloat(f)
nq3 = util.readhalffloat(f)
normals.extend((nx, ny, nz, nq))
verts.extend((vx, vy, vz))
bones.extend((util.readbyte(f), util.readbyte(f), util.readbyte(f), util.readbyte(f)))
weights.extend((util.readbyte(f) / 255.0, util.readbyte(f) / 255.0, util.readbyte(f) / 255.0, util.readbyte(f) / 255.0))
# read faces
f.seek(face_start)
if face_size == 0x00:
face_start = f.tell()
vert_start = (face_count * 2) + face_start
#print('face 0x00 start', hex(face_start), hex(vert_start))
start_direction = 1
f1 = util.readshort(f) + vert_len
f2 = util.readshort(f) + vert_len
face_direction = start_direction
while True:
f3 = util.readshort(f)
if f3 == 0xFFFF:
f1 = util.readshort(f) + vert_len
f2 = util.readshort(f) + vert_len
face_direction = start_direction
else:
f3 += vert_len
face_direction *= -1
if f1 != f2 and f1 != f3 and f2 != f3:
if face_direction > 0:
#print('add face', f3, f2, f1, colors[f3], colors[f2], colors[f1])
faces.extend((128, f3, f2, f1, f3, f2, f1))
else:
#print('add face', f1, f2, f3, colors[f1], colors[f2], colors[f3])
faces.extend((128, f2, f3, f1, f2, f3, f1))
f1 = f2
f2 = f3
if f.tell() == vert_start:
break
elif face_size == 0x40:
#print('face 0x40 start', hex( f.tell() ), face_count, int(face_count / 3))
for j in range(int(face_count / 3)):
fa = util.readshort(f) + vert_len
fb = util.readshort(f) + vert_len
fc = util.readshort(f) + vert_len
#print('add face', fa, fb, fc, colors[fa], colors[fb], colors[fc])
faces.extend((128, fa, fb, fc, fa, fb, fc))
# w = ([], [])
# max_weight = 0
# if weights[0] != 0: max_weight += weights[0]
# if weights[1] != 0: max_weight += weights[1]
# if weights[2] != 0: max_weight += weights[2]
# if weights[3] != 0: max_weight += weights[3]
# if max_weight != 0:
# if weights[0] != 0:
# w[0].append(self.bones[0][0])
# w[1].append(weights[0])
# elif weights[1] != 0:
# w[0].append(self.bones[0][1])
# w[1].append(weights[1])
# elif weights[2] != 0:
# w[0].append(self.bones[0][2])
# w[1].append(weights[2])
# elif weights[3] != 0:
# w[0].append(self.bones[0][3])
# w[1].append(weights[3])
f.seek(next_poly_addr)
util.log('{:d} verts, {:d} uvs, {:d} faces, {:d} skin indices, {:d} skin weights'.format(
int(len(verts) / 3), len(uvs), int(len(faces) / 4), int(len(bones) / 4), int(len(weights) / 4)), level=util.LOG_INFO)
return {
'scale': 1.0,
'metadata': {
'vertices': len(verts),
'faces': len(faces) / 4
},
'influencesPerVertex': 4,
'vertices': verts,
'skinIndices': bones,
'skinWeights': weights,
'faces': faces,
'colors': colors
}