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Did some changes to the getMeshFromObject wrapper.

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Made obj_export use getMeshFromObject

obj_export now copies images from mtex as well as texface when copy images enabled.
obj_export tested to work with exporting fluidsim animations (somebody reported it was broken, must have been fixed at some point?)
This commit is contained in:
Campbell Barton
2006-04-07 00:47:39 +00:00
parent 1a363c619a
commit 61ad9e26c6
2 changed files with 100 additions and 164 deletions
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94
release/scripts/obj_export.py
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@@ -45,6 +45,7 @@ Run this script from "File->Export" menu to export all meshes.
import Blender
from Blender import Mesh, Scene, Window, sys, Image, Draw
import BPyMesh
# Returns a tuple - path,extension.
# 'hello.obj' > ('hello', '.obj')
@@ -70,60 +71,6 @@ def saneFilechars(name):
def sortPair(a,b):
return min(a,b), max(a,b)
def getMeshFromObject(scn, ob, name=None, mesh=None, EXPORT_APPLY_MODIFIERS=True):
if mesh:
mesh.verts = None # Clear the mesh
else:
if not name:
mesh = Mesh.New()
else:
mesh = Mesh.New(name)
type = ob.getType()
dataname = ob.getData(1)
if EXPORT_APPLY_MODIFIERS or type != 'Mesh':
try:
mesh.getFromObject(ob.name)
except:
return None
else:
'''
Dont apply modifiers, copy the mesh.
So we can transform the data. its easiest just to get a copy of the mesh.
'''
tempob= Blender.Object.New('Mesh')
tempob.shareFrom(ob)
scn.link(tempob)
mesh.getFromObject(tempob.name)
scn.unlink(tempob)
if type == 'Mesh':
tempMe = Mesh.Get( dataname )
mesh.materials = tempMe.materials
mesh.degr = tempMe.degr
try: mesh.mode = tempMe.mode # Mesh module needs fixing.
except: pass
else:
try:
# Will only work for curves!!
# Text- no material access in python interface.
# Surf- no python interface
# MBall- no material access in python interface.
data = ob.getData()
materials = data.getMaterials()
mesh.materials = materials
print 'assigning materials for non mesh'
except:
print 'Cant assign materials to', type
return mesh
global MTL_DICT
# A Dict of Materials
@@ -140,7 +87,7 @@ def write_mtl(filename):
worldAmb = (0,0,0) # Default value
file = open(filename, "w")
file.write('# Blender MTL File: %s\n' % Blender.Get('filename').split('\\')[-1].split('/')[-1])
file.write('# Blender3D MTL File: %s\n' % Blender.Get('filename').split('\\')[-1].split('/')[-1])
file.write('# Material Count: %i\n' % len(MTL_DICT))
# Write material/image combinations we have used.
for key, mtl_mat_name in MTL_DICT.iteritems():
@@ -153,20 +100,19 @@ def write_mtl(filename):
if key[0] == None:
#write a dummy material here?
file.write('Ns 0\n')
file.write('Ka %s %s %s\n' % tuple([round(c, 6) for c in worldAmb]) ) # Ambient, uses mirror colour,
file.write('Ka %.6f %.6f %.6f\n' % tuple([c for c in worldAmb]) ) # Ambient, uses mirror colour,
file.write('Kd 0.8 0.8 0.8\n')
file.write('Ks 0.8 0.8 0.8\n')
file.write('d 1\n') # No alpha
file.write('illum 2\n') # light normaly
else:
mat = Blender.Material.Get(key[0])
file.write('Ns %s\n' % round((mat.getHardness()-1) * 1.9607843137254901 ) ) # Hardness, convert blenders 1-511 to MTL's
file.write('Ka %s %s %s\n' % tuple([round(c*mat.getAmb(), 6) for c in worldAmb]) ) # Ambient, uses mirror colour,
file.write('Kd %s %s %s\n' % tuple([round(c*mat.getRef(), 6) for c in mat.getRGBCol()]) ) # Diffuse
file.write('Ks %s %s %s\n' % tuple([round(c*mat.getSpec(), 6) for c in mat.getSpecCol()]) ) # Specular
file.write('Ni %s\n' % round(mat.getIOR(), 6)) # Refraction index
file.write('d %s\n' % round(mat.getAlpha(), 6)) # Alpha (obj uses 'd' for dissolve)
file.write('Ns %.6f\n' % ((mat.getHardness()-1) * 1.9607843137254901) ) # Hardness, convert blenders 1-511 to MTL's
file.write('Ka %.6f %.6f %.6f\n' % tuple([c*mat.getAmb() for c in worldAmb]) ) # Ambient, uses mirror colour,
file.write('Kd %.6f %.6f %.6f\n' % tuple([c*mat.getRef() for c in mat.getRGBCol()]) ) # Diffuse
file.write('Ks %.6f %.6f %.6f\n' % tuple([c*mat.getSpec() for c in mat.getSpecCol()]) ) # Specular
file.write('Ni %.6f\n' % mat.getIOR()) # Refraction index
file.write('d %.6f\n' % mat.getAlpha()) # Alpha (obj uses 'd' for dissolve)
# 0 to disable lighting, 1 for ambient & diffuse only (specular color set to black), 2 for full lighting.
if mat.getMode() & Blender.Material.Modes['SHADELESS']:
@@ -214,8 +160,19 @@ def copy_images(dest_dir):
# Get unique image names
uniqueImages = {}
for matname, imagename in MTL_DICT.iterkeys(): # Only use image name
# Get Texface images
if imagename != None:
uniqueImages[imagename] = None # Should use sets here. wait until Python 2.4 is default.
# Get MTex images
if matname != None:
mat= Material.Get(matname)
for mtex in mat.getTextures():
if mtex and mtex.tex.type == Blender.Texture.Types.IMAGE:
try:
uniqueImages[mtex.tex.image.name] = None
except:
pass
# Now copy images
copyCount = 0
@@ -271,9 +228,7 @@ EXPORT_GROUP_BY_OB=False, EXPORT_GROUP_BY_MAT=False):
if not containerMesh:
containerMesh = Mesh.New(temp_mesh_name)
del meshName
del tempMesh
del tempMesh
# Initialize totals, these are updated each object
totverts = totuvco = totno = 1
@@ -285,7 +240,9 @@ EXPORT_GROUP_BY_OB=False, EXPORT_GROUP_BY_MAT=False):
for ob in objects:
# Will work for non meshes now! :)
m = getMeshFromObject(scn, ob, temp_mesh_name, containerMesh, EXPORT_APPLY_MODIFIERS)
# getMeshFromObject(ob, container_mesh=None, apply_modifiers=True, vgroups=True, scn=None)
m= BPyMesh.getMeshFromObject(ob, containerMesh, True, False, scn)
if not m:
continue
@@ -308,9 +265,6 @@ EXPORT_GROUP_BY_OB=False, EXPORT_GROUP_BY_MAT=False):
oldmode = Mesh.Mode(oldmode)
scn.unlink(tempob)
Mesh.Mode(oldmode)
faces = [ f for f in m.faces ]
if EXPORT_EDGES: