345 lines
9.6 KiB
Python
345 lines
9.6 KiB
Python
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#!BPY
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"""
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Name: 'Solidify Selection'
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Blender: 243
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Group: 'Mesh'
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Tooltip: 'Makes the mesh solid by creating a second skin.'
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"""
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__author__ = "Campbell Barton"
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__url__ = ("www.blender.org", "blenderartists.org")
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__version__ = "1.1"
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__bpydoc__ = """\
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This script makes a skin from the selected faces.
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Optionaly you can skin between the original and new faces to make a watertight solid object
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"""
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# --------------------------------------------------------------------------
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# Solidify Selection 1.0 by Campbell Barton (AKA Ideasman42)
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# --------------------------------------------------------------------------
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# ***** BEGIN GPL LICENSE BLOCK *****
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# ***** END GPL LICENCE BLOCK *****
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# --------------------------------------------------------------------------
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from Blender import *
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import bpy
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import BPyMesh
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# reload(BPyMesh)
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import BPyMessages
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# reload(BPyMessages)
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from BPyMathutils import angleToLength
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# python 2.3 has no reversed() iterator. this will only work on lists and tuples
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try:
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reversed
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except:
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def reversed(l): return l[::-1]
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def copy_facedata_multilayer(me, from_faces, to_faces):
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'''
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Tkes 2 lists of faces and copies multilayer data from 1 to another
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make sure they are aligned, cant copy from a quad to a tri, used for solidify selection.
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'''
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def copy_default_face(data):
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face_from, face_to = data
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face_to.mat = face_from.mat
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face_to.smooth = face_from.smooth
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face_to.sel = True
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face_from.sel = False
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def copy_tex_face(data):
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face_from, face_to = data
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face_to.uv = [c for c in reversed(face_from.uv)]
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face_to.mode = face_from.mode
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face_to.flag = face_from.flag
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face_to.image = face_from.image
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def copy_col_face(data):
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face_from, face_to = data
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face_to.col = [c for c in reversed(face_from.col)]
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# make a list of face_from, face_to pairs
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#face_pairs = zip(faces_sel, [me_faces[len_faces + i] for i in xrange(len(faces_sel))])
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face_pairs = zip(from_faces, to_faces)
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# Copy properties from 1 set of faces to another.
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map(copy_default_face, face_pairs)
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for uvlayer in me.getUVLayerNames():
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me.activeUVLayer = uvlayer
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map(copy_tex_face, face_pairs)
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for collayer in me.getColorLayerNames():
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me.activeColorLayer = collayer
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map(copy_col_face, face_pairs)
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# Now add quads between if we wants
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Ang= Mathutils.AngleBetweenVecs
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SMALL_NUM=0.00001
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def solidify(me, PREF_THICK, PREF_SKIN_SIDES=True, PREF_REM_ORIG=False, PREF_COLLAPSE_SIDES=False):
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# Main code function
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me_faces = me.faces
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faces_sel= [f for f in me_faces if f.sel]
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BPyMesh.meshCalcNormals(me)
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normals= [v.no for v in me.verts]
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vertFaces= [[] for i in xrange(len(me.verts))]
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for f in me_faces:
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no=f.no
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for v in f:
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vertFaces[v.index].append(no)
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# Scale the normals by the face angles from the vertex Normals.
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for i in xrange(len(me.verts)):
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length=0.0
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if vertFaces[i]:
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for fno in vertFaces[i]:
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try:
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a= Ang(fno, normals[i])
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except:
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a= 0
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if a>=90:
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length+=1
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elif a < SMALL_NUM:
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length+= 1
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else:
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length+= angleToLength(a)
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length= length/len(vertFaces[i])
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#print 'LENGTH %.6f' % length
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# normals[i]= (normals[i] * length) * PREF_THICK
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normals[i] *= length * PREF_THICK
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len_verts = len( me.verts )
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len_faces = len( me_faces )
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vert_mapping= [-1] * len(me.verts)
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verts= []
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for f in faces_sel:
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for v in f:
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i= v.index
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if vert_mapping[i]==-1:
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vert_mapping[i]= len_verts + len(verts)
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verts.append(v.co + normals[i])
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#verts= [v.co + normals[v.index] for v in me.verts]
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me.verts.extend( verts )
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#faces= [tuple([ me.verts[v.index+len_verts] for v in reversed(f.v)]) for f in me_faces ]
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faces= [ tuple([vert_mapping[v.index] for v in reversed(f.v)]) for f in faces_sel ]
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me_faces.extend( faces )
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# Old method before multi UVs
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"""
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has_uv = me.faceUV
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has_vcol = me.vertexColors
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for i, orig_f in enumerate(faces_sel):
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new_f= me_faces[len_faces + i]
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new_f.mat = orig_f.mat
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new_f.smooth = orig_f.smooth
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orig_f.sel=False
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new_f.sel= True
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new_f = me_faces[i+len_faces]
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if has_uv:
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new_f.uv = [c for c in reversed(orig_f.uv)]
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new_f.mode = orig_f.mode
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new_f.flag = orig_f.flag
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if orig_f.image:
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new_f.image = orig_f.image
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if has_vcol:
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new_f.col = [c for c in reversed(orig_f.col)]
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"""
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copy_facedata_multilayer(me, faces_sel, [me_faces[len_faces + i] for i in xrange(len(faces_sel))])
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if PREF_SKIN_SIDES or PREF_COLLAPSE_SIDES:
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skin_side_faces= []
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skin_side_faces_orig= []
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# Get edges of faces that only have 1 user - so we can make walls
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edges = {}
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# So we can reference indicies that wrap back to the start.
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ROT_TRI_INDEX = 0,1,2,0
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ROT_QUAD_INDEX = 0,1,2,3,0
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for f in faces_sel:
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f_v= f.v
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for i, edgekey in enumerate(f.edge_keys):
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if edges.has_key(edgekey):
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edges[edgekey]= None
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else:
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if len(f_v) == 3:
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edges[edgekey] = f, f_v, i, ROT_TRI_INDEX[i+1]
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else:
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edges[edgekey] = f, f_v, i, ROT_QUAD_INDEX[i+1]
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del ROT_QUAD_INDEX, ROT_TRI_INDEX
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# So we can remove doubles with edges only.
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if PREF_COLLAPSE_SIDES:
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me.sel = False
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# Edges are done. extrude the single user edges.
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for edge_face_data in edges.itervalues():
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if edge_face_data: # != None
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f, f_v, i1, i2 = edge_face_data
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v1i,v2i= f_v[i1].index, f_v[i2].index
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if PREF_COLLAPSE_SIDES:
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# Collapse
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cv1 = me.verts[v1i]
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cv2 = me.verts[vert_mapping[v1i]]
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cv3 = me.verts[v2i]
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cv4 = me.verts[vert_mapping[v2i]]
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cv1.co = cv2.co = (cv1.co+cv2.co)/2
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cv3.co = cv4.co = (cv3.co+cv4.co)/2
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cv1.sel=cv2.sel=cv3.sel=cv4.sel=True
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else:
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# Now make a new Face
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# skin_side_faces.append( (v1i, v2i, vert_mapping[v2i], vert_mapping[v1i]) )
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skin_side_faces.append( (v2i, v1i, vert_mapping[v1i], vert_mapping[v2i]) )
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skin_side_faces_orig.append((f, len(me_faces) + len(skin_side_faces_orig), i1, i2))
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if PREF_COLLAPSE_SIDES:
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me.remDoubles(0.0001)
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else:
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me_faces.extend(skin_side_faces)
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# Now assign properties.
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"""
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# Before MultiUVs
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for i, origfData in enumerate(skin_side_faces_orig):
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orig_f, new_f_idx, i1, i2 = origfData
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new_f= me_faces[new_f_idx]
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new_f.mat= orig_f.mat
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new_f.smooth= orig_f.smooth
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if has_uv:
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new_f.mode= orig_f.mode
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new_f.flag= orig_f.flag
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if orig_f.image:
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new_f.image= orig_f.image
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uv1= orig_f.uv[i1]
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uv2= orig_f.uv[i2]
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new_f.uv= (uv1, uv2, uv2, uv1)
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if has_vcol:
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col1= orig_f.col[i1]
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col2= orig_f.col[i2]
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new_f.col= (col1, col2, col2, col1)
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"""
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for i, origfData in enumerate(skin_side_faces_orig):
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orig_f, new_f_idx, i2, i1 = origfData
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new_f= me_faces[new_f_idx]
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new_f.mat= orig_f.mat
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new_f.smooth= orig_f.smooth
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for uvlayer in me.getUVLayerNames():
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me.activeUVLayer = uvlayer
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for i, origfData in enumerate(skin_side_faces_orig):
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orig_f, new_f_idx, i2, i1 = origfData
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new_f= me_faces[new_f_idx]
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new_f.mode= orig_f.mode
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new_f.flag= orig_f.flag
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new_f.image= orig_f.image
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uv1= orig_f.uv[i1]
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uv2= orig_f.uv[i2]
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new_f.uv= (uv1, uv2, uv2, uv1)
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for collayer in me.getColorLayerNames():
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me.activeColorLayer = collayer
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for i, origfData in enumerate(skin_side_faces_orig):
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orig_f, new_f_idx, i2, i1 = origfData
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new_f= me_faces[new_f_idx]
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col1= orig_f.col[i1]
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col2= orig_f.col[i2]
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new_f.col= (col1, col2, col2, col1)
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if PREF_REM_ORIG:
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me_faces.delete(0, faces_sel)
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def main():
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scn = bpy.data.scenes.active
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ob = scn.objects.active
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if not ob or ob.type != 'Mesh':
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BPyMessages.Error_NoMeshActive()
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return
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me = ob.getData(mesh=1)
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if me.multires:
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BPyMessages.Error_NoMeshMultiresEdit()
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return
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# Create the variables.
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PREF_THICK = Draw.Create(-0.1)
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PREF_SKIN_SIDES= Draw.Create(1)
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PREF_COLLAPSE_SIDES= Draw.Create(0)
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PREF_REM_ORIG= Draw.Create(0)
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pup_block = [\
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('Thick:', PREF_THICK, -10, 10, 'Skin thickness in mesh space.'),\
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('Skin Sides', PREF_SKIN_SIDES, 'Skin between the original and new faces.'),\
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('Collapse Sides', PREF_COLLAPSE_SIDES, 'Skin between the original and new faces.'),\
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('Remove Original', PREF_REM_ORIG, 'Remove the selected faces after skinning.'),\
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]
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if not Draw.PupBlock('Solid Skin Selection', pup_block):
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return
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is_editmode = Window.EditMode()
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if is_editmode: Window.EditMode(0)
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Window.WaitCursor(1)
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me = ob.getData(mesh=1)
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solidify(me, PREF_THICK.val, PREF_SKIN_SIDES.val, PREF_REM_ORIG.val, PREF_COLLAPSE_SIDES.val)
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Window.WaitCursor(0)
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if is_editmode: Window.EditMode(1)
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Window.RedrawAll()
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if __name__ == '__main__':
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main()
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