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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 th |
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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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# object_render_wire.py liero, meta-androcto, |
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# Yorik van Havre, Alejandro Sierra, Howard Trickey |
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# ***** END GPL LICENCE BLOCK ***** |
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|
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bl_info = { |
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"name": "Render Wireframe", |
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"author": "Community", |
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"description": " WireRender & WireSoild modes", |
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"version": (2, 3), |
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"blender": (2, 63, 0), |
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"location": "Object > Render Wireframe", |
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"warning": '', |
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'wiki_url': 'http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts', |
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'tracker_url': 'https://projects.blender.org/tracker/index.php?'\ |
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'func=detail&aid=26997', |
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'category': 'Object'} |
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import bpy, mathutils |
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cube_faces = [ [0,3,2,1], [5,6,7,4], [0,1,5,4], |
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[7,6,2,3], [2,6,5,1], [0,4,7,3] ] |
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cube_normals = [ mathutils.Vector((0,0,-1)), |
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mathutils.Vector((0,0,1)), |
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mathutils.Vector((0,-1,0)), |
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mathutils.Vector((0,1,0)), |
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mathutils.Vector((1,0,0)), |
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mathutils.Vector((-1,0,0)) ] |
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|
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def create_cube(me, v, d): |
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x = v.co.x |
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y = v.co.y |
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z = v.co.z |
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coords=[ [x-d,y-d,z-d], [x+d,y-d,z-d], [x+d,y+d,z-d], [x-d,y+d,z-d], |
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[x-d,y-d,z+d], [x+d,y-d,z+d], [x+d,y+d,z+d], [x-d,y+d,z+d] ] |
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for coord in coords: |
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me.vertices.add(1) |
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me.vertices[-1].co = mathutils.Vector(coord) |
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def norm_dot(e, k, fnorm, me): |
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v = me.vertices[e[1]].co - me.vertices[e[0]].co |
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if k == 1: |
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v = -v |
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v.normalize() |
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return v * fnorm |
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|
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def fill_cube_face(me, index, f): |
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return [index + cube_faces[f][i] for i in range(4)] |
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# Coords of jth point of face f in cube instance i |
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def cube_face_v(me, f, i, j): |
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return me.vertices[i + cube_faces[f][j]].co |
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def cube_face_center(me, f, i): |
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return 0.5 * (cube_face_v(me, f, i, 0) + \ |
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cube_face_v(me, f, i, 2)) |
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# Return distance between points on two faces when |
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# each point is projected onto the plane that goes through |
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# the face center and is perpendicular to the line |
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# through the face centers. |
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def projected_dist(me, i1, i2, f1, f2, j1, j2): |
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f1center = cube_face_center(me, f1, i1) |
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f2center = cube_face_center(me, f2, i2) |
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axis_norm = (f2center - f1center).normalized() |
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v1 = cube_face_v(me, f1, i1, j1) |
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v2 = cube_face_v(me, f2, i2, j2) |
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v1proj = v1 - (axis_norm * (v1 - f1center)) * axis_norm |
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v2proj = v2 - (axis_norm * (v2 - f2center)) * axis_norm |
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return (v2proj - v1proj).length |
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def skin_edges(me, i1, i2, f1, f2): |
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# Connect verts starting at i1 forming cube face f1 |
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# to those starting at i2 forming cube face f2. |
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# Need to find best alignment to avoid a twist. |
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shortest_length = 1e6 |
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f2_start_index = 0 |
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for i in range(4): |
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x = projected_dist(me, i1, i2, f1, f2, 0, i) |
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if x < shortest_length: |
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shortest_length = x |
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f2_start_index = i |
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ans = [] |
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j = f2_start_index |
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for i in range(4): |
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fdata = [i1 + cube_faces[f1][i], |
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i2 + cube_faces[f2][j], |
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i2 + cube_faces[f2][(j + 1) % 4], |
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i1 + cube_faces[f1][(i - 1) % 4]] |
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if fdata[3] == 0: |
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fdata = [fdata[3]] + fdata[0:3] |
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ans.extend(fdata) |
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j = (j - 1) % 4 |
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return ans |
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# Return map: v -> list of length len(node_normals) where |
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# each element of the list is either None (no assignment) |
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# or ((v0, v1), 0 or 1) giving an edge and direction that face is assigned to. |
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def find_assignment(me, edges, vert_edges, node_normals): |
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nf = len(node_normals) |
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feasible = {} |
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for e in edges: |
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for k in (0, 1): |
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fds = [(f, norm_dot(e, k, node_normals[f], me)) for f in range(nf)] |
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feasible[(e, k)] = [fd for fd in fds if fd[1] > 0.01] |
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assignment = {} |
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for v, ves in vert_edges.items(): |
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assignment[v] = best_assignment(ves, feasible, nf) |
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return assignment |
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def best_assignment(ves, feasible, nf): |
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apartial = [ None ] * nf |
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return best_assign_help(ves, feasible, apartial, 0.0)[0] |
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def best_assign_help(ves, feasible, apartial, sumpartial): |
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if len(ves) == 0: |
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return (apartial, sumpartial) |
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else: |
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ek0 = ves[0] |
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vesrest = ves[1:] |
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feas = feasible[ek0] |
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bestsum = 0 |
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besta = None |
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for (f, d) in feas: |
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if apartial[f] is None: |
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ap = apartial[:] |
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ap[f] = ek0 |
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# sum up d**2 to penalize smaller d's more |
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sp = sumpartial + d*d |
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(a, s) = best_assign_help(vesrest, feasible, ap, sp) |
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if s > bestsum: |
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bestsum = s |
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besta = a |
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if besta: |
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return (besta, bestsum) |
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else: |
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# not feasible to assign e0, k0; try to assign rest |
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return best_assign_help(vesrest, feasible, apartial, sumpartial) |
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def assigned_face(e, assignment): |
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(v0, v1), dir = e |
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a = assignment[v1] |
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for j, ee in enumerate(a): |
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if e == ee: |
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return j |
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return -1 |
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def create_wired_mesh(me2, me, thick): |
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edges = [] |
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vert_edges = {} |
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for be in me.edges: |
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if be.select and not be.hide: |
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e = (be.key[0], be.key[1]) |
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edges.append(e) |
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for k in (0, 1): |
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if e[k] not in vert_edges: |
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vert_edges[e[k]] = [] |
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vert_edges[e[k]].append((e, k)) |
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assignment = find_assignment(me, edges, vert_edges, cube_normals) |
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# Create the geometry |
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n_idx = {} |
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for v in assignment: |
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vpos = me.vertices[v] |
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index = len(me2.vertices) |
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# We need to associate each node with the new geometry |
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n_idx[v] = index |
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# Geometry for the nodes, each one a cube |
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create_cube(me2, vpos, thick) |
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# Skin using the new geometry |
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cfaces = [] |
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for k, f in assignment.items(): |
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# Skin the nodes |
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for i in range(len(cube_faces)): |
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if f[i] is None: |
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cfaces.extend(fill_cube_face(me2, n_idx[k], i)) |
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else: |
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(v0, v1), dir = f[i] |
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# only skin between edges in forward direction |
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# to avoid making doubles |
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if dir == 1: |
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# but first make sure other end actually assigned |
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i2 = assigned_face(((v0, v1), 0), assignment) |
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if i2 == -1: |
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cfaces.extend(fill_cube_face(me2, n_idx[k], i)) |
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continue |
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i2 = assigned_face(((v0, v1), 1), assignment) |
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if i2 != -1: |
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cfaces.extend(skin_edges(me2, n_idx[v0], n_idx[v1], i, i2)) |
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else: |
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# assignment failed for this edge |
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cfaces.extend(fill_cube_face(me2, n_idx[k], i)) |
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# adding faces to the mesh |
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me2.tessfaces.add(len(cfaces) // 4) |
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me2.tessfaces.foreach_set("vertices_raw", cfaces) |
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me2.update(calc_edges=True) |
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# Add built in wireframe |
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def wire_add(mallas): |
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if mallas: |
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bpy.ops.object.select_all(action='DESELECT') |
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bpy.context.scene.objects.active = mallas[0] |
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for o in mallas: o.select = True |
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bpy.ops.object.duplicate() |
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obj, sce = bpy.context.object, bpy.context.scene |
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for mod in obj.modifiers: obj.modifiers.remove(mod) |
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bpy.ops.object.join() |
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bpy.ops.object.mode_set(mode='EDIT') |
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bpy.ops.mesh.wireframe(thickness=0.005) |
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bpy.ops.object.mode_set() |
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for mat in obj.material_slots: bpy.ops.object.material_slot_remove() |
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if 'wire_object' in sce.objects.keys(): |
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sce.objects.get('wire_object').data = obj.data |
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sce.objects.get('wire_object').matrix_world = mallas[0].matrix_world |
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sce.objects.unlink(obj) |
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else: |
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obj.name = 'wire_object' |
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obj.data.materials.append(bpy.data.materials.get('mat_wireobj')) |
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return{'FINISHED'} |
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''' |
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class VIEW3D_PT_tools_SolidifyWireframe(bpy.types.Panel): |
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bl_space_type = 'VIEW_3D' |
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bl_region_type = 'TOOLS' |
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bl_context = "mesh_edit" |
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bl_label = "Solidify Wireframe" |
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def draw(self, context): |
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active_obj = context.active_object |
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layout = self.layout |
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col = layout.column(align=True) |
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col.operator("mesh.solidify_wireframe", text="Solidify") |
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col.prop(context.scene, "swThickness") |
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col.prop(context.scene, "swSelectNew") |
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''' |
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# a class for your operator |
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class SolidifyWireframe(bpy.types.Operator): |
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"""Turns the selected edges of a mesh into solid objects""" |
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bl_idname = "mesh.solidify_wireframe" |
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bl_label = "Solidify Wireframe" |
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bl_options = {'REGISTER', 'UNDO'} |
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def invoke(self, context, event): |
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return self.execute(context) |
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@classmethod |
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def poll(cls, context): |
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ob = context.active_object |
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return ob and ob.type == 'MESH' |
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def execute(self, context): |
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# Get the active object |
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ob_act = context.active_object |
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# getting current edit mode |
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currMode = ob_act.mode |
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# switching to object mode |
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bpy.ops.object.mode_set(mode='OBJECT') |
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bpy.ops.object.select_all(action='DESELECT') |
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# getting mesh data |
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mymesh = ob_act.data |
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#getting new mesh |
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newmesh = bpy.data.meshes.new(mymesh.name + " wire") |
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obj = bpy.data.objects.new(newmesh.name,newmesh) |
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obj.location = ob_act.location |
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obj.rotation_euler = ob_act.rotation_euler |
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obj.scale = ob_act.scale |
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context.scene.objects.link(obj) |
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create_wired_mesh(newmesh, mymesh, context.scene.swThickness) |
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# restoring original editmode if needed |
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if context.scene.swSelectNew: |
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obj.select = True |
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context.scene.objects.active = obj |
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else: |
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bpy.ops.object.mode_set(mode=currMode) |
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# returning after everything is done |
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return {'FINISHED'} |
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class WireMaterials(bpy.types.Operator): |
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bl_idname = 'scene.wire_render' |
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bl_label = 'Apply Materials' |
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bl_description = 'Set Up Materials for a Wire Render' |
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bl_options = {'REGISTER', 'UNDO'} |
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def execute(self, context): |
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wm = bpy.context.window_manager |
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sce = bpy.context.scene |
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if 'mat_clay' not in bpy.data.materials: |
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mat = bpy.data.materials.new('mat_clay') |
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mat.specular_intensity = 0 |
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else: mat = bpy.data.materials.get('mat_clay') |
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mat.diffuse_color = wm.col_clay |
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mat.use_shadeless = wm.shadeless_mat |
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if 'mat_wire' not in bpy.data.materials: |
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mat = bpy.data.materials.new('mat_wire') |
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mat.specular_intensity = 0 |
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mat.use_transparency = True |
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mat.type = 'WIRE' |
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mat.offset_z = 0.05 |
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else: mat = bpy.data.materials.get('mat_wire') |
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mat.diffuse_color = wm.col_wire |
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mat.use_shadeless = wm.shadeless_mat |
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try: bpy.ops.object.mode_set() |
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except: pass |
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if wm.selected_meshes: objetos = bpy.context.selected_objects |
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else: objetos = sce.objects |
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mallas = [o for o in objetos if o.type == 'MESH' and o.is_visible(sce) and o.name != 'wire_object'] |
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for obj in mallas: |
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sce.objects.active = obj |
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print ('procesando >', obj.name) |
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obj.show_wire = wm.wire_view |
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for mat in obj.material_slots: |
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bpy.ops.object.material_slot_remove() |
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obj.data.materials.append(bpy.data.materials.get('mat_wire')) |
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obj.data.materials.append(bpy.data.materials.get('mat_clay')) |
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obj.material_slots.data.active_material_index = 1 |
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bpy.ops.object.editmode_toggle() |
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bpy.ops.mesh.select_all(action='SELECT') |
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bpy.ops.object.material_slot_assign() |
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bpy.ops.object.mode_set() |
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if wm.wire_object: |
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if 'mat_wireobj' not in bpy.data.materials: |
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mat = bpy.data.materials.new('mat_wireobj') |
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mat.specular_intensity = 0 |
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else: mat = bpy.data.materials.get('mat_wireobj') |
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mat.diffuse_color = wm.col_wire |
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mat.use_shadeless = wm.shadeless_mat |
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wire_add(mallas) |
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return{'FINISHED'} |
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class PanelWMat(bpy.types.Panel): |
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bl_label = 'Setup Wire Render' |
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bl_space_type = 'VIEW_3D' |
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bl_region_type = 'TOOLS' |
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bl_options = {'DEFAULT_CLOSED'} |
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def draw(self, context): |
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wm = bpy.context.window_manager |
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active_obj = context.active_object |
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layout = self.layout |
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column = layout.column(align=True) |
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column.prop(wm, 'col_clay') |
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column.prop(wm, 'col_wire') |
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column = layout.column(align=True) |
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column.prop(wm, 'selected_meshes') |
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column.prop(wm, 'shadeless_mat') |
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column.prop(wm, 'wire_view') |
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column.prop(wm, 'wire_object') |
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column.separator() |
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column.operator('scene.wire_render') |
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column.label(text='- - - - - - - - - - - - - - - - - - - - - -') |
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col = layout.column(align=True) |
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column.label(text='Solid WireFrame') |
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layout.operator("mesh.solidify_wireframe", text="Create Mesh Object") |
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col.prop(context.scene, "swThickness") |
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col.prop(context.scene, "swSelectNew") |
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bpy.types.WindowManager.selected_meshes = bpy.props.BoolProperty(name='Selected Meshes', default=False, description='Apply materials to Selected Meshes / All Visible Meshes') |
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bpy.types.WindowManager.shadeless_mat = bpy.props.BoolProperty(name='Shadeless', default=False, description='Generate Shadeless Materials') |
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bpy.types.WindowManager.col_clay = bpy.props.FloatVectorProperty(name='', description='Clay Color', default=(1.0, 0.9, 0.8), min=0, max=1, step=1, precision=3, subtype='COLOR_GAMMA', size=3) |
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bpy.types.WindowManager.col_wire = bpy.props.FloatVectorProperty(name='', description='Wire Color', default=(0.1 ,0.0 ,0.0), min=0, max=1, step=1, precision=3, subtype='COLOR_GAMMA', size=3) |
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bpy.types.WindowManager.wire_view = bpy.props.BoolProperty(name='Viewport Wires', default=False, description='Overlay wires display over solid in Viewports') |
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bpy.types.WindowManager.wire_object = bpy.props.BoolProperty(name='Create Mesh Object', default=False, description='Add a Wire Object to scene to be able to render wires in Cycles') |
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bpy.types.Scene.swThickness = bpy.props.FloatProperty(name="Thickness", description="Thickness of the skinned edges", default=0.01) |
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bpy.types.Scene.swSelectNew = bpy.props.BoolProperty(name="Select wire", description="If checked, the wire object will be selected after creation", default=True) |
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|
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# Register the operator |
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def solidifyWireframe_menu_func(self, context): |
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self.layout.operator(SolidifyWireframe.bl_idname, text="Solidify Wireframe", icon='PLUGIN') |
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|
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# Add "Solidify Wireframe" menu to the "Mesh" menu. |
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def register(): |
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bpy.utils.register_class(WireMaterials) |
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bpy.utils.register_class(PanelWMat) |
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bpy.utils.register_module(__name__) |
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bpy.types.Scene.swThickness = bpy.props.FloatProperty(name="Thickness", |
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description="Thickness of the skinned edges", |
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default=0.01) |
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bpy.types.Scene.swSelectNew = bpy.props.BoolProperty(name="Select wire", |
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description="If checked, the wire object will be selected after creation", |
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default=True) |
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bpy.types.VIEW3D_MT_edit_mesh_edges.append(solidifyWireframe_menu_func) |
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|
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# Remove "Solidify Wireframe" menu entry from the "Mesh" menu. |
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def unregister(): |
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bpy.utils.unregister_class(WireMaterials) |
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bpy.utils.unregister_class(PanelWMat) |
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bpy.utils.unregister_module(__name__) |
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del bpy.types.Scene.swThickness |
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bpy.types.VIEW3D_MT_edit_mesh_edges.remove(solidifyWireframe_menu_func) |
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|
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if __name__ == "__main__": |
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register() |
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