these are a couple of method doodles/sketches i wrote to help with some simple modeling related tasks in Blender 2.79 still a work in progress. it has some examples of using ops, modifiers, vertex groups. i haven't put these into an addon yet but hope some of the ideas are helpful. (they're may be bugs so please modify use at your own risk - also some modifications will probably be needed to make them work in higher blender versions)
import bpy
def toggleSmooth(levels=3):
"""toggle smooth on selected mesh.
it creates subdivision surface modifier or removes all subdiv modifiers on mesh
@param levels: number of levels to use in smoothing
"""
if not bpy.context.selected_objects:
print("requires a single mesh selected to duplicate")
return False
meshObj = bpy.context.object
#if subdiv modifier(s) exist remove them
#otherwise create a new one and increase smoothing
isSmooth = False
for modifier in meshObj.modifiers:
if modifier.type == 'SUBSURF':
isSmooth = True
break
if isSmooth:
#remove smoothing
for modifier in meshObj.modifiers:
if modifier.type == 'SUBSURF':
meshObj.modifiers.remove(modifier)
else:
#add smoothing
mod = meshObj.modifiers.new('Created_Smoothing',type='SUBSURF')
mod.levels = levels
#force refresh for blender 2.79 for display issue
curFrame = bpy.context.scene.frame_current
bpy.context.scene.frame_set(curFrame)
return True
def makeCleanDuplicate(applyMod=True):
"""make a clean duplicate of mesh
it applies all modifiers, deletes all vertex groups, deletes all shapekeys
todo: possibly clear parent
todo: possibly preserve shapekey pose in case source mesh has a shapkey on we want to preserve
"""
if not bpy.context.selected_objects:
print("requires a single mesh selected to duplicate")
return False
bpy.ops.object.duplicate()
meshObj = bpy.context.object #should be duplicated mesh now selected
#remove vertex groups
bpy.ops.object.vertex_group_remove(all=True)
#remove shapekeys
bpy.ops.object.shape_key_remove(all=True)
#apply all modifiers. todo: make an option to remove modifiers instead of apply
for modifier in meshObj.modifiers:
if applyMod:
bpy.ops.object.modifier_apply(apply_as='DATA', modifier = modifier.name )
return True
#todo make the duplicates into cleaner code - maybe a class - CleanShapekeyCopier
def duplicateSelectedLatticeShapekey():
"""make a clean duplicate mesh for selected lattice shapekey
it applies all modifiers, deletes all vertex groups, deletes all shapekeys
"""
selection = bpy.context.selected_objects or []
if not len(bpy.context.selected_objects) == 2:
print("requires a lattice and mesh selected")
return False
latticeObj = [sel for sel in selection if sel.type == 'LATTICE'][0]
srcMeshObj = [sel for sel in selection if sel.type == 'MESH'][0]
#selObj = bpy.context.selected_objects[0]
activeShapekeyIndex = latticeObj.active_shape_key_index
####
#preserve shapekey pose
#activate selected shapekey
latticeObj.data.shape_keys.key_blocks[activeShapekeyIndex].value = 1.0
####
bpy.ops.object.select_all(action = 'DESELECT')
srcMeshObj.select = True #might need to make it active
bpy.ops.object.duplicate()
meshObj = bpy.context.object #should be duplicated mesh now selected
#remove vertex groups
#bpy.ops.object.mode_set(mode='OBJECT', toggle=False)
if len(meshObj.vertex_groups) > 0: #will error if try to remove non existing vertex groups
bpy.ops.object.vertex_group_remove(all=True)
applyMod = True
#apply all modifiers. todo: make an option to remove modifiers instead of apply
for modifier in meshObj.modifiers:
if applyMod:
bpy.ops.object.modifier_apply(apply_as='DATA', modifier = modifier.name )
#restore original lattice - needs to be after lattice modifier is applied to duplicated mesh
latticeObj.data.shape_keys.key_blocks[activeShapekeyIndex].value = 0.0
return True
def duplicateSelectedMeshShapekey():
"""make a clean duplicate mesh for selected shapekey (want to support lattices or mesh shapekeys)
it applies all modifiers, deletes all vertex groups, deletes all shapekeys
"""
if not bpy.context.selected_objects:
print("requires a single mesh selected to duplicate")
return False
#selObj = bpy.context.selected_objects[0]
bpy.ops.object.duplicate()
meshObj = bpy.context.object #should be duplicated mesh now selected
activeShapekeyIndex = meshObj.active_shape_key_index
basisShapekeyIndex = 0 #might need to change this
####
#preserve shapekey pose
#activate selected shapekey
meshObj.data.shape_keys.key_blocks[activeShapekeyIndex].value = 1.0
#remove all shapekeys
bpy.ops.object.shape_key_remove(all=True)
####
#remove vertex groups
#bpy.ops.object.mode_set(mode='OBJECT', toggle=False)
if len(meshObj.vertex_groups) > 0: #will error if try to remove non existing vertex groups
bpy.ops.object.vertex_group_remove(all=True)
applyMod = True
#apply all modifiers. todo: make an option to remove modifiers instead of apply
for modifier in meshObj.modifiers:
if applyMod:
bpy.ops.object.modifier_apply(apply_as='DATA', modifier = modifier.name )
return True
def addSuffixToSelected(suffix=".L"):
"""add suffix to all selected
"""
selection = bpy.context.selected_objects
for sel in selection:
curName = sel.name
if not curName.endswith(suffix):
sel.name = curName+suffix
def splitBySelectedEdgeLoop():
"""split mesh by selected edgeloop
"""
if bpy.context.object.mode != 'EDIT':
print("need to have an edgeloop selected in edit mode. doing nothing")
return False
bpy.ops.mesh.edge_split()
bpy.ops.mesh.separate(type='LOOSE')
return True
"""
import imp
testTool = imp.load_source("tool","PATHTOFILE.py") #change to path to python file
testTool.addSuffixToSelected(suffix=".L") #requires ex: meshes selected to rename
testTool.duplicateSelectedMeshShapekey() #requires mesh selected
testTool.duplicateSelectedLatticeShapekey() #requires both mesh and lattice selected, order doesnt matter
testTool.toggleSmooth()
#testTool.makeCleanDuplicate()
#testTool.splitBySelectedEdgeLoop()
"""
