blender scripting 编写

一、查看ui按钮对应的代码

二、查看或修改对象名称

三、案例：渲染多张图片并导出对应的相机参数

注：通过ui交互都设置好，如果ui能渲染，该代码就能运行成功。

import bpy
import math
import os
from mathutils import Vector, Matrix
from math import radians
import bmesh
import datetime
import time
import numpy as np
import os
#from os import pathscenenumber='baseline_scene6_clean'#basefolder=os.path.join(os.path.expanduser('~'), 'Documents', 'Zantis', scenenumber)
scene = bpy.data.scenes["Scene"]
#scene.camera.rotation_mode='YZX'
def length():leg=0.00p1=[0.0,0.0]temp=0ob = bpy.context.object # active objectfor p in ob.data.splines.active.bezier_points:p2=p1p1=[p.co.x,p.co.y]if(temp==0):temp=1continuedistance = math.sqrt( ((p1[0]-p2[0])**2)+((p1[1]-p2[1])**2) )leg=leg+distancereturn legitem=0
multiply=40
camera = bpy.data.objects['Camera']
target=bpy.data.objects['mesh.001']
my_obj=[]#my_obj.append("019")
#my_obj.append("021")
#my_obj.append("029")
#my_obj.append("030")
#my_obj.append("031")
#my_obj.append("032")
#my_obj.append("033")
#my_obj.append("034")
my_obj.append("040")
#my_obj.append("042")t1 = time.time()#import bpy#for ob in bpy.context.selected_editable_objects:#  ob.active_material_index = 0#   for i in range(len(ob.material_slots)):
#        bpy.ops.object.material_slot_remove({'object': ob})for item in my_obj:#break# basefolder=os.path.join(os.path.expanduser('~'), 'Desktop', 'Urban_Enviroment_Texturing','Mesh_Texturing_Pipeline', 'Scenes', '005', 'images')basefolder = os.path.join('E:\\', 'chromeDownload', 'mvs_test', 'scenes', '006', 'images')t2 = time.time()for ob in bpy.context.selected_objects:ob.select_set(False)curv='Curve.'+itempath = bpy.data.objects[curv]camera.select_set(True)path.select_set(True)# bpy.context.view_layer.objects.active = path # parent# bpy.ops.object.parent_set(type='FOLLOW') # follow path# camera.location=path.matrix_world @ bpy.context.object.data.splines.active.bezier_points[0].co# target.location=path.matrix_world @ bpy.context.object.data.splines.active.bezier_points[1].co# direc=target.location-camera.locationframes=(int)(length()*multiply)	# bpy.data.scenes["Scene"].frame_end=frames# bpy.context.object.data.path_duration=framesframe_is=0frames=frames+1print(frames)count=0for frame_is in range(scene.frame_start, scene.frame_end + 1):# for frame_is in range(frames - 3):t3 = time.time()scene.frame_current=frame_is#print(scene.frame_currents
#        s=str(scene.objects['Camera'].matrix_world[0][3])+"_"+str(scene.objects['Camera'].matrix_world[1][3])+"_"+str(scene.objects['Camera'].matrix_world[2][3])+"_"
#        s=s+str(direc[0])+"_"+str(direc[1])+"_"+str(direc[2])+".jpg"s = str(scene.frame_current).zfill(5)+".jpg"image_filepath=os.path.join(basefolder,s)#print(s)bpy.data.scenes['Scene'].render.filepath = image_filepath
#        bpy.ops.render.render(write_still=True)elapsedTime = time.time() - t3print("Frame time passed {hours:d}:{minutes:d}:{seconds:d}".format(hours=int((elapsedTime / 60 ** 2) % (60 ** 2)), minutes=int((elapsedTime / 60) % (60)),seconds=int(elapsedTime % 60)))#        print('path to create: ', os.path.join(os.path.expanduser('~'), 'Desktop', 'Data','Depth_data',scenenumber+'_'+item))if not os.path.exists(os.path.join(os.path.expanduser('~'), basefolder)):os.mkdir(os.path.join(os.path.expanduser('~'), basefolder))if not os.path.exists(os.path.join(os.path.expanduser('~'), basefolder, 'RTm/')):os.mkdir(os.path.join(os.path.expanduser('~'), basefolder, 'RTm/'))# Set up rendering of depth map:bpy.context.scene.use_nodes = Truetree = bpy.context.scene.node_treelinks = tree.links# clear default nodesfor n in tree.nodes:tree.nodes.remove(n)# create input render layer noderl = tree.nodes.new('CompositorNodeRLayers')RGB2BW = tree.nodes.new(type="CompositorNodeRGBToBW")links.new(rl.outputs[0], RGB2BW.inputs[0])map = tree.nodes.new(type="CompositorNodeMapValue")# Size is chosen kind of arbitrarily, try out until you're satisfied with resulting depth map.map.size = [0.05]map.use_min = Truemap.min = [0]map.use_max = Truemap.max = [1]links.new(rl.outputs[2], map.inputs[0])mix_multi = tree.nodes.new(type="CompositorNodeMixRGB")# Size is chosen kind of arbitrarily, try out until you're satisfied with resulting depth map.mix_multi.blend_type = 'MULTIPLY'mix_multi.inputs[2].default_value[0] = 0.5mix_multi.inputs[2].default_value[1] = 0.5mix_multi.inputs[2].default_value[2] = 0.5
#        mix_multi.inputs[2].default = [0.5 , 0.5, 0.5, 1.0]links.new(rl.outputs[3], mix_multi.inputs[1])mix_multi2 = tree.nodes.new(type="CompositorNodeMixRGB")# Size is chosen kind of arbitrarily, try out until you're satisfied with resulting depth map.mix_multi2.blend_type = 'ADD'mix_multi2.inputs[2].default_value[0] = 0.5mix_multi2.inputs[2].default_value[1] = 0.5mix_multi2.inputs[2].default_value[2] = 0.5links.new(mix_multi.outputs[0], mix_multi2.inputs[1])invert = tree.nodes.new(type="CompositorNodeInvert")links.new(map.outputs[0], invert.inputs[1])# The viewer can come in handy for inspecting the results in the GUIdepthViewer = tree.nodes.new(type="CompositorNodeViewer")links.new(invert.outputs[0], depthViewer.inputs[0])# Use alpha from input.links.new(rl.outputs[1], depthViewer.inputs[1])# Normal map# The viewer can come in handy for inspecting the results in the GUIdepthViewer2 = tree.nodes.new(type="CompositorNodeViewer")links.new(rl.outputs[1], depthViewer2.inputs[1])links.new(mix_multi2.outputs[0], depthViewer2.inputs[0])#        fileOutput = tree.nodes.new(type="CompositorNodeOutputFile")
#        fileOutput.base_path = os.path.join(os.path.expanduser('~'), 'Desktop', 'Data','Depth_data',scenenumber+'_'+item, 'depth')
##        fileOutput.file_slots[0].path = str(scene.frame_current).zfill(5)
#        links.new(invert.outputs[0], fileOutput.inputs[0])
#        
#        fileOutput2 = tree.nodes.new(type="CompositorNodeOutputFile")
#        fileOutput2.base_path = os.path.join(os.path.expanduser('~'), 'Desktop', 'Data','Depth_data',scenenumber+'_'+item,'normal')
##        fileOutput2.file_slots[0].path = str(scene.frame_current).zfill(5)
#        links.new(mix_multi2.outputs[0], fileOutput2.inputs[0])
#        
#        fileOutput3 = tree.nodes.new(type="CompositorNodeOutputFile")
#        fileOutput3.base_path = os.path.join(os.path.expanduser('~'), 'Desktop', 'Data','Depth_data',scenenumber+'_'+item,'panoramas_BW')
##        fileOutput3.file_slots[0].path = str(scene.frame_current).zfill(5)
#        links.new(RGB2BW.outputs[0], fileOutput3.inputs[0])bpy.ops.render.render(write_still=True)location, rotation = scene.objects['Camera'].matrix_world.decompose()[0:2]R_world2bcam = rotation.to_matrix().transposed()T_world2bcam = -1*R_world2bcam @ locationCamera_RT_matrix =  Matrix((R_world2bcam[0][:] + (T_world2bcam[0],),R_world2bcam[1][:] + (T_world2bcam[1],),R_world2bcam[2][:] + (T_world2bcam[2],),[0,0,0,1],))np.savetxt(os.path.join(os.path.expanduser('~'), basefolder, 'RTm')+'/'+str(frame_is).zfill(6)+"_RTm.txt",np.array(Camera_RT_matrix))# breakscene.frame_current=0path.select_set(False)bpy.ops.object.parent_clear(type='CLEAR')# camera.select_set(False)
elapsedTime = time.time() - t1
print("Total time passed {hours:d}:{minutes:d}:{seconds:d}".format(hours=int((elapsedTime / 60 ** 2) % (60 ** 2)), minutes=int((elapsedTime / 60) % (60)),seconds=int(elapsedTime % 60)))
print("Finished")