mhmm…seems part1 stil waits for moderation aproval…
anyway, part3:
# =================================================
# === Generate Polygon Tag Mapping (PTAG Chunk) ===
# =================================================
def generate_ptag(mesh, material_names):
def surf_indicies(mat):
try:
if mat:
return material_names.index(mat.name)
except:
pass
return 0
data = cStringIO.StringIO()
data.write("SURF") # polygon tag type
mesh_materials = mesh.materials
mesh_surfindicies = [surf_indicies(mat) for mat in mesh_materials]
try: VCOL_NAME_SURF_INDEX = material_names.index(VCOL_NAME)
except: VCOL_NAME_SURF_INDEX = 0
try: DEFAULT_NAME_SURF_INDEX = material_names.index(DEFAULT_NAME)
except: DEFAULT_NAME_SURF_INDEX = 0
len_mat = len(mesh_materials)
for i, f in enumerate(mesh.faces): # numfaces
f_mat = f.mat
if f_mat >= len_mat: f_mat = 0 # Rare annoying eror
if not i%100:
Blender.Window.DrawProgressBar(float(i)/len(mesh.faces), "Writing Surface Indices")
data.write(generate_vx(i))
if (not mesh_materials) and mesh.vertexColors: # vcols only
surfidx = VCOL_NAME_SURF_INDEX
elif mesh_materials and not mesh.vertexColors: # materials only
surfidx = mesh_surfindicies[f_mat]
elif (not mesh_materials) and (not mesh.vertexColors): # neither
surfidx = DEFAULT_NAME_SURF_INDEX
else: # both
surfidx = mesh_surfindicies[f_mat]
data.write(struct.pack(">H", surfidx)) # surface index
return data.getvalue()
# ===================================================
# === Generate VC Surface Definition (SURF Chunk) ===
# ===================================================
def generate_vcol_surf(mesh):
data = cStringIO.StringIO()
if mesh.vertexColors:
surface_name = generate_nstring(VCOL_NAME)
data.write(surface_name)
data.write("\0\0")
data.write("COLR")
data.write(struct.pack(">H", 14))
data.write(struct.pack(">fffH", 1, 1, 1, 0))
data.write("DIFF")
data.write(struct.pack(">H", 6))
data.write(struct.pack(">fH", 0.0, 0))
data.write("LUMI")
data.write(struct.pack(">H", 6))
data.write(struct.pack(">fH", 1.0, 0))
data.write("VCOL")
data.write(struct.pack(">H", 34))
data.write(struct.pack(">fH4s", 1.0, 0, "RGB ")) # intensity, envelope, type
data.write(generate_nstring("Blender's Vertex Colors")) # name
data.write("CMNT") # material comment
comment = "Vertex Colors: Exported from Blender\256 243"
comment = generate_nstring(comment)
data.write(struct.pack(">H", len(comment)))
data.write(comment)
return data.getvalue()
# ================================================
# === Generate Surface Definition (SURF Chunk) ===
# ================================================
def generate_surf(material_name):
data = cStringIO.StringIO()
data.write(generate_nstring(material_name))
data.write("\0\0")
try:
material = Blender.Material.Get(material_name)
R,G,B = material.R, material.G, material.B
ref = material.ref
emit = material.emit
spec = material.spec
hard = material.hard
except:
material = None
R=G=B = 1.0
ref = 1.0
emit = 0.0
spec = 0.2
hard = 0.0
data.write("COLR")
data.write(struct.pack(">H", 14))
data.write(struct.pack(">fffH", R, G, B, 0))
data.write("DIFF")
data.write(struct.pack(">H", 6))
data.write(struct.pack(">fH", ref, 0))
data.write("LUMI")
data.write(struct.pack(">H", 6))
data.write(struct.pack(">fH", emit, 0))
data.write("SPEC")
data.write(struct.pack(">H", 6))
data.write(struct.pack(">fH", spec, 0))
data.write("GLOS")
data.write(struct.pack(">H", 6))
gloss = hard / (255/2.0)
gloss = round(gloss, 1)
data.write(struct.pack(">fH", gloss, 0))
data.write("CMNT") # material comment
comment = material_name + ": Exported from Blender\256 243"
comment = generate_nstring(comment)
data.write(struct.pack(">H", len(comment)))
data.write(comment)
# Check if the material contains any image maps
if material:
mtextures = material.getTextures() # Get a list of textures linked to the material
for mtex in mtextures:
if (mtex) and (mtex.tex.type == Blender.Texture.Types.IMAGE): # Check if the texture is of type "IMAGE"
data.write("BLOK") # Surface BLOK header
data.write(struct.pack(">H", 104)) # Hardcoded and ugly! Will only handle 1 image per material
# IMAP subchunk (image map sub header)
data.write("IMAP")
data_tmp = cStringIO.StringIO()
data_tmp.write(struct.pack(">H", 0)) # Hardcoded - not sure what it represents
data_tmp.write("CHAN")
data_tmp.write(struct.pack(">H", 4))
data_tmp.write("COLR")
data_tmp.write("OPAC") # Hardcoded texture layer opacity
data_tmp.write(struct.pack(">H", 8))
data_tmp.write(struct.pack(">H", 0))
data_tmp.write(struct.pack(">f", 1.0))
data_tmp.write(struct.pack(">H", 0))
data_tmp.write("ENAB")
data_tmp.write(struct.pack(">HH", 2, 1)) # 1 = texture layer enabled
data_tmp.write("NEGA")
data_tmp.write(struct.pack(">HH", 2, 0)) # Disable negative image (1 = invert RGB values)
data_tmp.write("AXIS")
data_tmp.write(struct.pack(">HH", 2, 1))
data.write(struct.pack(">H", len(data_tmp.getvalue())))
data.write(data_tmp.getvalue())
# IMAG subchunk
data.write("IMAG")
data.write(struct.pack(">HH", 2, 1))
data.write("PROJ")
data.write(struct.pack(">HH", 2, 5)) # UV projection
data.write("VMAP")
uvname = generate_nstring("Blender's UV Coordinates")
data.write(struct.pack(">H", len(uvname)))
data.write(uvname)
return data.getvalue()