diff options
Diffstat (limited to 'release/scripts/export_obj.py')
| -rw-r--r-- | release/scripts/export_obj.py | 106 |
1 files changed, 79 insertions, 27 deletions
diff --git a/release/scripts/export_obj.py b/release/scripts/export_obj.py index 28e1443e953..0edc70a874b 100644 --- a/release/scripts/export_obj.py +++ b/release/scripts/export_obj.py @@ -7,9 +7,9 @@ Group: 'Export' Tooltip: 'Save a Wavefront OBJ File' """ -__author__ = "Campbell Barton, Jiri Hnidek" +__author__ = "Campbell Barton, Jiri Hnidek, Paolo Ciccone" __url__ = ['http://wiki.blender.org/index.php/Scripts/Manual/Export/wavefront_obj', 'www.blender.org', 'blenderartists.org'] -__version__ = "1.2" +__version__ = "1.21" __bpydoc__ = """\ This script is an exporter to OBJ file format. @@ -185,7 +185,8 @@ def write(filename, objects,\ EXPORT_TRI=False, EXPORT_EDGES=False, EXPORT_NORMALS=False, EXPORT_NORMALS_HQ=False,\ EXPORT_UV=True, EXPORT_MTL=True, EXPORT_COPY_IMAGES=False,\ EXPORT_APPLY_MODIFIERS=True, EXPORT_ROTX90=True, EXPORT_BLEN_OBS=True,\ -EXPORT_GROUP_BY_OB=False, EXPORT_GROUP_BY_MAT=False, EXPORT_KEEP_VERT_ORDER=False): +EXPORT_GROUP_BY_OB=False, EXPORT_GROUP_BY_MAT=False, EXPORT_KEEP_VERT_ORDER=False,\ +EXPORT_POLYGROUPS=False): ''' Basic write function. The context and options must be alredy set This can be accessed externaly @@ -199,6 +200,29 @@ EXPORT_GROUP_BY_OB=False, EXPORT_GROUP_BY_MAT=False, EXPORT_KEEP_VERT_ORDER=Fal def veckey2d(v): return round(v.x, 6), round(v.y, 6) + def findVertexGroupName(face, vWeightMap): + """ + Searches the vertexDict to see what groups is assigned to a given face. + We use a frequency system in order to sort out the name because a given vetex can + belong to two or more groups at the same time. To find the right name for the face + we list all the possible vertex group names with their frequency and then sort by + frequency in descend order. The top element is the one shared by the highest number + of vertices is the face's group + """ + weightDict = {} + for vert in face: + vWeights = vWeightMap[vert.index] + for vGroupName, weight in vWeights: + weightDict[vGroupName] = weightDict.get(vGroupName, 0) + weight + + if weightDict: + alist = [(weight,vGroupName) for vGroupName, weight in weightDict.iteritems()] # sort least to greatest amount of weight + alist.sort() + return(alist[-1][1]) # highest value last + else: + return '(null)' + + print 'OBJ Export path: "%s"' % filename temp_mesh_name = '~tmp-mesh' @@ -239,12 +263,12 @@ EXPORT_GROUP_BY_OB=False, EXPORT_GROUP_BY_MAT=False, EXPORT_KEEP_VERT_ORDER=Fal globalNormals = {} - # Get all meshs + # Get all meshes for ob_main in objects: for ob, ob_mat in BPyObject.getDerivedObjects(ob_main): # Will work for non meshes now! :) # getMeshFromObject(ob, container_mesh=None, apply_modifiers=True, vgroups=True, scn=None) - me= BPyMesh.getMeshFromObject(ob, containerMesh, EXPORT_APPLY_MODIFIERS, False, scn) + me= BPyMesh.getMeshFromObject(ob, containerMesh, EXPORT_APPLY_MODIFIERS, EXPORT_POLYGROUPS, scn) if not me: continue @@ -397,6 +421,17 @@ EXPORT_GROUP_BY_OB=False, EXPORT_GROUP_BY_MAT=False, EXPORT_KEEP_VERT_ORDER=Fal if not faceuv: f_image = None + if EXPORT_POLYGROUPS: + # Retrieve the list of vertex groups + vertGroupNames = me.getVertGroupNames() + + currentVGroup = '' + # Create a dictionary keyed by face id and listing, for each vertex, the vertex groups it belongs to + vgroupsMap = [[] for _i in xrange(len(me.verts))] + for vertexGroupName in vertGroupNames: + for vIdx, vWeight in me.getVertsFromGroup(vertexGroupName, 1): + vgroupsMap[vIdx].append((vertexGroupName, vWeight)) + for f_index, f in enumerate(faces): f_v= f.v f_smooth= f.smooth @@ -411,9 +446,18 @@ EXPORT_GROUP_BY_OB=False, EXPORT_GROUP_BY_MAT=False, EXPORT_KEEP_VERT_ORDER=Fal else: key = materialNames[f_mat], None # No image, use None instead. + # Write the vertex group + if EXPORT_POLYGROUPS: + if vertGroupNames: + # find what vertext group the face belongs to + theVGroup = findVertexGroupName(f,vgroupsMap) + if theVGroup != currentVGroup: + currentVGroup = theVGroup + file.write('g %s\n' % theVGroup) + # CHECK FOR CONTEXT SWITCH if key == contextMat: - pass # Context alredy switched, dont do anythoing + pass # Context alredy switched, dont do anything else: if key[0] == None and key[1] == None: # Write a null material, since we know the context has changed. @@ -438,6 +482,7 @@ EXPORT_GROUP_BY_OB=False, EXPORT_GROUP_BY_MAT=False, EXPORT_KEEP_VERT_ORDER=Fal if EXPORT_GROUP_BY_MAT: file.write('g %s_%s_%s\n' % (fixName(ob.name), fixName(ob.getData(1)), mat_data[0]) ) # can be mat_image or (null) + file.write('usemtl %s\n' % mat_data[0]) # can be mat_image or (null) contextMat = key @@ -539,7 +584,8 @@ def write_ui(filename): EXPORT_NORMALS, EXPORT_NORMALS_HQ, EXPORT_UV,\ EXPORT_MTL, EXPORT_SEL_ONLY, EXPORT_ALL_SCENES,\ EXPORT_ANIMATION, EXPORT_COPY_IMAGES, EXPORT_BLEN_OBS,\ - EXPORT_GROUP_BY_OB, EXPORT_GROUP_BY_MAT, EXPORT_KEEP_VERT_ORDER + EXPORT_GROUP_BY_OB, EXPORT_GROUP_BY_MAT, EXPORT_KEEP_VERT_ORDER,\ + EXPORT_POLYGROUPS EXPORT_APPLY_MODIFIERS = Draw.Create(0) EXPORT_ROTX90 = Draw.Create(1) @@ -557,6 +603,8 @@ def write_ui(filename): EXPORT_GROUP_BY_OB = Draw.Create(0) EXPORT_GROUP_BY_MAT = Draw.Create(0) EXPORT_KEEP_VERT_ORDER = Draw.Create(1) + EXPORT_POLYGROUPS = Draw.Create(0) + # Old UI ''' @@ -607,7 +655,7 @@ def write_ui(filename): GLOBALS['EVENT'] = e def do_split(e,v): - global EXPORT_BLEN_OBS, EXPORT_GROUP_BY_OB, EXPORT_GROUP_BY_MAT, EXPORT_APPLY_MODIFIERS, KEEP_VERT_ORDER + global EXPORT_BLEN_OBS, EXPORT_GROUP_BY_OB, EXPORT_GROUP_BY_MAT, EXPORT_APPLY_MODIFIERS, KEEP_VERT_ORDER, EXPORT_POLYGROUPS if EXPORT_BLEN_OBS.val or EXPORT_GROUP_BY_OB.val or EXPORT_GROUP_BY_MAT.val or EXPORT_APPLY_MODIFIERS.val: EXPORT_KEEP_VERT_ORDER.val = 0 else: @@ -621,6 +669,7 @@ def write_ui(filename): if not (EXPORT_BLEN_OBS.val or EXPORT_GROUP_BY_OB.val or EXPORT_GROUP_BY_MAT.val or EXPORT_APPLY_MODIFIERS.val): EXPORT_KEEP_VERT_ORDER.val = 1 + def do_help(e,v): url = __url__[0] print 'Trying to open web browser with documentation at this address...' @@ -637,43 +686,45 @@ def write_ui(filename): # Center based on overall pup size ui_x -= 165 - ui_y -= 110 + ui_y -= 140 global EXPORT_APPLY_MODIFIERS, EXPORT_ROTX90, EXPORT_TRI, EXPORT_EDGES,\ EXPORT_NORMALS, EXPORT_NORMALS_HQ, EXPORT_UV,\ EXPORT_MTL, EXPORT_SEL_ONLY, EXPORT_ALL_SCENES,\ EXPORT_ANIMATION, EXPORT_COPY_IMAGES, EXPORT_BLEN_OBS,\ - EXPORT_GROUP_BY_OB, EXPORT_GROUP_BY_MAT, EXPORT_KEEP_VERT_ORDER + EXPORT_GROUP_BY_OB, EXPORT_GROUP_BY_MAT, EXPORT_KEEP_VERT_ORDER,\ + EXPORT_POLYGROUPS - Draw.Label('Context...', ui_x+9, ui_y+209, 220, 20) + Draw.Label('Context...', ui_x+9, ui_y+239, 220, 20) Draw.BeginAlign() - EXPORT_SEL_ONLY = Draw.Toggle('Selection Only', EVENT_NONE, ui_x+9, ui_y+189, 110, 20, EXPORT_SEL_ONLY.val, 'Only export objects in visible selection. Else export whole scene.') - EXPORT_ALL_SCENES = Draw.Toggle('All Scenes', EVENT_NONE, ui_x+119, ui_y+189, 110, 20, EXPORT_ALL_SCENES.val, 'Each scene as a separate OBJ file.') - EXPORT_ANIMATION = Draw.Toggle('Animation', EVENT_NONE, ui_x+229, ui_y+189, 110, 20, EXPORT_ANIMATION.val, 'Each frame as a numbered OBJ file.') + EXPORT_SEL_ONLY = Draw.Toggle('Selection Only', EVENT_NONE, ui_x+9, ui_y+219, 110, 20, EXPORT_SEL_ONLY.val, 'Only export objects in visible selection. Else export whole scene.') + EXPORT_ALL_SCENES = Draw.Toggle('All Scenes', EVENT_NONE, ui_x+119, ui_y+219, 110, 20, EXPORT_ALL_SCENES.val, 'Each scene as a separate OBJ file.') + EXPORT_ANIMATION = Draw.Toggle('Animation', EVENT_NONE, ui_x+229, ui_y+219, 110, 20, EXPORT_ANIMATION.val, 'Each frame as a numbered OBJ file.') Draw.EndAlign() - Draw.Label('Output Options...', ui_x+9, ui_y+159, 220, 20) + Draw.Label('Output Options...', ui_x+9, ui_y+189, 220, 20) Draw.BeginAlign() - EXPORT_APPLY_MODIFIERS = Draw.Toggle('Apply Modifiers', EVENT_REDRAW, ui_x+9, ui_y+140, 110, 20, EXPORT_APPLY_MODIFIERS.val, 'Use transformed mesh data from each object. May break vert order for morph targets.', do_split) - EXPORT_ROTX90 = Draw.Toggle('Rotate X90', EVENT_NONE, ui_x+119, ui_y+140, 110, 20, EXPORT_ROTX90.val, 'Rotate on export so Blenders UP is translated into OBJs UP') - EXPORT_COPY_IMAGES = Draw.Toggle('Copy Images', EVENT_NONE, ui_x+229, ui_y+140, 110, 20, EXPORT_COPY_IMAGES.val, 'Copy image files to the export directory, never overwrite.') + EXPORT_APPLY_MODIFIERS = Draw.Toggle('Apply Modifiers', EVENT_REDRAW, ui_x+9, ui_y+170, 110, 20, EXPORT_APPLY_MODIFIERS.val, 'Use transformed mesh data from each object. May break vert order for morph targets.', do_split) + EXPORT_ROTX90 = Draw.Toggle('Rotate X90', EVENT_NONE, ui_x+119, ui_y+170, 110, 20, EXPORT_ROTX90.val, 'Rotate on export so Blenders UP is translated into OBJs UP') + EXPORT_COPY_IMAGES = Draw.Toggle('Copy Images', EVENT_NONE, ui_x+229, ui_y+170, 110, 20, EXPORT_COPY_IMAGES.val, 'Copy image files to the export directory, never overwrite.') Draw.EndAlign() - Draw.Label('Export...', ui_x+9, ui_y+109, 220, 20) + Draw.Label('Export...', ui_x+9, ui_y+139, 220, 20) Draw.BeginAlign() - EXPORT_EDGES = Draw.Toggle('Edges', EVENT_NONE, ui_x+9, ui_y+90, 50, 20, EXPORT_EDGES.val, 'Edges not connected to faces.') - EXPORT_TRI = Draw.Toggle('Triangulate', EVENT_NONE, ui_x+59, ui_y+90, 70, 20, EXPORT_TRI.val, 'Triangulate quads.') + EXPORT_EDGES = Draw.Toggle('Edges', EVENT_NONE, ui_x+9, ui_y+120, 50, 20, EXPORT_EDGES.val, 'Edges not connected to faces.') + EXPORT_TRI = Draw.Toggle('Triangulate', EVENT_NONE, ui_x+59, ui_y+120, 70, 20, EXPORT_TRI.val, 'Triangulate quads.') Draw.EndAlign() Draw.BeginAlign() - EXPORT_MTL = Draw.Toggle('Materials', EVENT_NONE, ui_x+139, ui_y+90, 70, 20, EXPORT_MTL.val, 'Write a separate MTL file with the OBJ.') - EXPORT_UV = Draw.Toggle('UVs', EVENT_NONE, ui_x+209, ui_y+90, 31, 20, EXPORT_UV.val, 'Export texface UV coords.') + EXPORT_MTL = Draw.Toggle('Materials', EVENT_NONE, ui_x+139, ui_y+120, 70, 20, EXPORT_MTL.val, 'Write a separate MTL file with the OBJ.') + EXPORT_UV = Draw.Toggle('UVs', EVENT_NONE, ui_x+209, ui_y+120, 31, 20, EXPORT_UV.val, 'Export texface UV coords.') Draw.EndAlign() Draw.BeginAlign() - EXPORT_NORMALS = Draw.Toggle('Normals', EVENT_NONE, ui_x+250, ui_y+90, 59, 20, EXPORT_NORMALS.val, 'Export vertex normal data (Ignored on import).') - EXPORT_NORMALS_HQ = Draw.Toggle('HQ', EVENT_NONE, ui_x+309, ui_y+90, 31, 20, EXPORT_NORMALS_HQ.val, 'Calculate high quality normals for rendering.') + EXPORT_NORMALS = Draw.Toggle('Normals', EVENT_NONE, ui_x+250, ui_y+120, 59, 20, EXPORT_NORMALS.val, 'Export vertex normal data (Ignored on import).') + EXPORT_NORMALS_HQ = Draw.Toggle('HQ', EVENT_NONE, ui_x+309, ui_y+120, 31, 20, EXPORT_NORMALS_HQ.val, 'Calculate high quality normals for rendering.') Draw.EndAlign() + EXPORT_POLYGROUPS = Draw.Toggle('Polygroups', EVENT_REDRAW, ui_x+9, ui_y+95, 120, 20, EXPORT_POLYGROUPS.val, 'Export vertex groups as OBJ groups (one group per face approximation).') Draw.Label('Blender Objects as OBJ:', ui_x+9, ui_y+59, 220, 20) @@ -727,7 +778,7 @@ def write_ui(filename): EXPORT_GROUP_BY_OB = EXPORT_GROUP_BY_OB.val EXPORT_GROUP_BY_MAT = EXPORT_GROUP_BY_MAT.val EXPORT_KEEP_VERT_ORDER = EXPORT_KEEP_VERT_ORDER.val - + EXPORT_POLYGROUPS = EXPORT_POLYGROUPS.val base_name, ext = splitExt(filename) @@ -776,7 +827,8 @@ def write_ui(filename): EXPORT_NORMALS_HQ, EXPORT_UV, EXPORT_MTL,\ EXPORT_COPY_IMAGES, EXPORT_APPLY_MODIFIERS,\ EXPORT_ROTX90, EXPORT_BLEN_OBS,\ - EXPORT_GROUP_BY_OB, EXPORT_GROUP_BY_MAT, EXPORT_KEEP_VERT_ORDER) + EXPORT_GROUP_BY_OB, EXPORT_GROUP_BY_MAT, EXPORT_KEEP_VERT_ORDER,\ + EXPORT_POLYGROUPS) Blender.Set('curframe', orig_frame) |