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#!BPY
"""
Name: 'Stanford PLY (*.ply)...'
Blender: 241
Group: 'Export'
Tooltip: 'Export active object to Stanford PLY format'
"""
import bpy
import Blender
from Blender import Mesh, Scene, Window, sys, Image, Draw
import BPyMesh
__author__ = "Bruce Merry"
__version__ = "0.93"
__bpydoc__ = """\
This script exports Stanford PLY files from Blender. It supports normals,
colours, and texture coordinates per face or per vertex.
Only one mesh can be exported at a time.
"""
# Copyright (C) 2004, 2005: Bruce Merry, bmerry@cs.uct.ac.za
#
# 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.
# Vector rounding se we can use as keys
#
# Updated on Aug 11, 2008 by Campbell Barton
# - added 'comment' prefix to comments - Needed to comply with the PLY spec.
#
# Updated on Jan 1, 2007 by Gabe Ghearing
# - fixed normals so they are correctly smooth/flat
# - fixed crash when the model doesn't have uv coords or vertex colors
# - fixed crash when the model has vertex colors but doesn't have uv coords
# - changed float32 to float and uint8 to uchar for compatibility
# Errata/Notes as of Jan 1, 2007
# - script exports texture coords if they exist even if TexFace isn't selected (not a big deal to me)
# - ST(R) should probably be renamed UV(T) like in most PLY files (importer needs to be updated to take either)
#
# Updated on Jan 3, 2007 by Gabe Ghearing
# - fixed "sticky" vertex UV exporting
# - added pupmenu to enable/disable exporting normals, uv coords, and colors
# Errata/Notes as of Jan 3, 2007
# - ST(R) coords should probably be renamed UV(T) like in most PLY files (importer needs to be updated to take either)
# - edges should be exported since PLY files support them
# - code is getting spaghettish, it should be refactored...
#
def rvec3d(v): return round(v[0], 6), round(v[1], 6), round(v[2], 6)
def rvec2d(v): return round(v[0], 6), round(v[1], 6)
def file_callback(filename):
if not filename.lower().endswith('.ply'):
filename += '.ply'
scn= bpy.data.scenes.active
ob= scn.objects.active
if not ob:
Blender.Draw.PupMenu('Error%t|Select 1 active object')
return
file = open(filename, 'wb')
EXPORT_APPLY_MODIFIERS = Draw.Create(1)
EXPORT_NORMALS = Draw.Create(1)
EXPORT_UV = Draw.Create(1)
EXPORT_COLORS = Draw.Create(1)
#EXPORT_EDGES = Draw.Create(0)
pup_block = [\
('Apply Modifiers', EXPORT_APPLY_MODIFIERS, 'Use transformed mesh data.'),\
('Normals', EXPORT_NORMALS, 'Export vertex normal data.'),\
('UVs', EXPORT_UV, 'Export texface UV coords.'),\
('Colors', EXPORT_COLORS, 'Export vertex Colors.'),\
#('Edges', EXPORT_EDGES, 'Edges not connected to faces.'),\
]
if not Draw.PupBlock('Export...', pup_block):
return
is_editmode = Blender.Window.EditMode()
if is_editmode:
Blender.Window.EditMode(0, '', 0)
Window.WaitCursor(1)
EXPORT_APPLY_MODIFIERS = EXPORT_APPLY_MODIFIERS.val
EXPORT_NORMALS = EXPORT_NORMALS.val
EXPORT_UV = EXPORT_UV.val
EXPORT_COLORS = EXPORT_COLORS.val
#EXPORT_EDGES = EXPORT_EDGES.val
mesh = BPyMesh.getMeshFromObject(ob, None, EXPORT_APPLY_MODIFIERS, False, scn)
if not mesh:
Blender.Draw.PupMenu('Error%t|Could not get mesh data from active object')
return
mesh.transform(ob.matrixWorld)
faceUV = mesh.faceUV
vertexUV = mesh.vertexUV
vertexColors = mesh.vertexColors
if (not faceUV) and (not vertexUV): EXPORT_UV = False
if not vertexColors: EXPORT_COLORS = False
if not EXPORT_UV: faceUV = vertexUV = False
if not EXPORT_COLORS: vertexColors = False
# incase
color = uvcoord = uvcoord_key = normal = normal_key = None
verts = [] # list of dictionaries
# vdict = {} # (index, normal, uv) -> new index
vdict = [{} for i in xrange(len(mesh.verts))]
vert_count = 0
for i, f in enumerate(mesh.faces):
smooth = f.smooth
if not smooth:
normal = tuple(f.no)
normal_key = rvec3d(normal)
if faceUV: uv = f.uv
if vertexColors: col = f.col
for j, v in enumerate(f):
if smooth:
normal= tuple(v.no)
normal_key = rvec3d(normal)
if faceUV:
uvcoord= uv[j][0], 1.0-uv[j][1]
uvcoord_key = rvec2d(uvcoord)
elif vertexUV:
uvcoord= v.uvco[0], 1.0-v.uvco[1]
uvcoord_key = rvec2d(uvcoord)
if vertexColors: color= col[j].r, col[j].g, col[j].b
key = normal_key, uvcoord_key, color
vdict_local = vdict[v.index]
if (not vdict_local) or (not vdict_local.has_key(key)):
vdict_local[key] = vert_count;
verts.append( (tuple(v.co), normal, uvcoord, color) )
vert_count += 1
file.write('ply\n')
file.write('format ascii 1.0\n')
file.write('comment Created by Blender3D %s - www.blender.org, source file: %s\n' % (Blender.Get('version'), Blender.Get('filename').split('/')[-1].split('\\')[-1] ))
file.write('element vertex %d\n' % len(verts))
file.write('property float x\n')
file.write('property float y\n')
file.write('property float z\n')
if EXPORT_NORMALS:
file.write('property float nx\n')
file.write('property float ny\n')
file.write('property float nz\n')
if EXPORT_UV:
file.write('property float s\n')
file.write('property float t\n')
if EXPORT_COLORS:
file.write('property uchar red\n')
file.write('property uchar green\n')
file.write('property uchar blue\n')
file.write('element face %d\n' % len(mesh.faces))
file.write('property list uchar uint vertex_indices\n')
file.write('end_header\n')
for i, v in enumerate(verts):
file.write('%.6f %.6f %.6f ' % v[0]) # co
if EXPORT_NORMALS:
file.write('%.6f %.6f %.6f ' % v[1]) # no
if EXPORT_UV:
file.write('%.6f %.6f ' % v[2]) # uv
if EXPORT_COLORS:
file.write('%u %u %u' % v[3]) # col
file.write('\n')
for (i, f) in enumerate(mesh.faces):
file.write('%d ' % len(f))
smooth = f.smooth
if not smooth: no = rvec3d(f.no)
if faceUV: uv = f.uv
if vertexColors: col = f.col
for j, v in enumerate(f):
if f.smooth: normal= rvec3d(v.no)
else: normal= no
if faceUV: uvcoord= rvec2d((uv[j][0], 1.0-uv[j][1]))
elif vertexUV: uvcoord= rvec2d((v.uvco[0], 1.0-v.uvco[1]))
if vertexColors: color= col[j].r, col[j].g, col[j].b
file.write('%d ' % vdict[v.index][normal, uvcoord, color])
file.write('\n')
file.close()
if is_editmode:
Blender.Window.EditMode(1, '', 0)
def main():
Blender.Window.FileSelector(file_callback, 'PLY Export', Blender.sys.makename(ext='.ply'))
if __name__=='__main__':
main()
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