让cgteamwork自动为Houdini载入相机，角色道具的abc文件

最近接到个需求：在创建EFX文件时，自动加载动画出的缓存abc文件+相机， 不用手动一个个的载入，还容易出错

在CGTeamwork里打开对应的镜头，下面的文件列表显示相机和角色文件， 之前特效师手动一个个的参考到houdini文件上去的， 很费劲还容易漏掉，自动化工具需要自动把它们加载到houdin上去。

1. 配置houdini启动器，在参数栏上写入houdini_open_start.py路径， win路径填houdini安装路径，其他的视情况填

2. 点击cgteamwork镜头任务右上角的houdini关联， 自动打开houdini软件
   

3. houndin相机自动载入起始帧，统一的命名。 资产abc自动放到一个组内
   

5. 自定义一个统一的输出节点， 以免输出路径不统一
   

原理：cgteamwork先调用start, 找到当前的镜头号，给到plugin， plugin算到路径下的abc列表，把列表文件赋给 /obj
houdini_open_start.py

import os,glob
import sys
import houdini_plugin
G_NukePlugin_Path = os.path.dirname( sys.argv[0] )
sys.path.append( G_NukePlugin_Path )
try:
    from PySide2.QtCore   import *
except:
    from PySide.QtCore   import *    
os.environ['QTWEBENGINEPROCESS_PATH'] = ''
appPath = QCoreApplication.applicationFilePath()
sys.path.append(r'C:/CgTeamWork_v7/bin/base')
import cgtw2
t_tw = cgtw2.tw()

def mina():       
    db    = sys.argv[1]
    module        = sys.argv[2]
    taskname      = sys.argv[3]
    taskid        = sys.argv[4]
    taskid        = taskid.split(":")[1]

    module="shot"
    field_sign_list=t_tw.task.fields(db,module)[:50]
    filter_list=[]
    id_list=[taskid]
    tasks = t_tw.task.get(db, module, id_list, field_sign_list, limit='5000', order_sign_list=[])
    if tasks:
        task = tasks[0]
        # print(122323,task)
        houdini_plugin.create_alembic_node(task["eps.entity"], task['shot.entity'])#source_name

        
mina()

houdini_plugin.py

import os,glob
import sys
import hou

def create_alembic_node(ep, shot):
    alembic_dir = "S:/Projects/NL/QHMX/{}/Shot/{}/Animation/approve/cache/".format(ep, shot)
    if not os.path.exists(alembic_dir):
        return
    folder = glob.glob(alembic_dir+r"alembic/*.abc")
    geoNode = hou.node("/obj/").createNode("geo", "abc")
    geoNode.setColor(hou.Color(1,0,0))
    geoNode.setPosition([3,0])
    # geoNode.setDisplayFlag(False)
    # geoNode.setSelectableInViewport(False)

    scaleNode = hou.node("obj").createNode("null", "Scale")
    scaleNode.setColor(hou.Color(1,0,0))
    scaleNode.setPosition([0,2])

    for file in folder:
        file = file.replace("\\","/")
        filename = os.path.basename(file).replace(".abc","")
        if filename!="light":
            abcNode = geoNode.createNode("alembic", filename)
            abcNode.parm("fileName").set(file)  
            abcNode.moveToGoodPosition()
            # abcNode.layoutChildren()
        else:
            lightNode = hou.node("/obj/").createNode("geo", "light")
            lightNode.setColor(hou.Color(1,0,0))
            lightNode.setPosition([1,0])
            abcNode = lightNode.createNode("alembic", filename)
            abcNode.parm("fileName").set(file)  
            abcNode.moveToGoodPosition()
            lightNode.setFirstInput(scaleNode)  
      
    geoNode.setFirstInput(scaleNode)   

    folder = glob.glob(alembic_dir+r"camera/*.abc")
    file = folder[0].replace("\\","/")
    filename = os.path.basename(file).replace(".abc","")
    node = hou.node('obj')
    camnode = node.createNode('alembicarchive',filename)
    camnode.setColor(hou.Color(1,0,0))
    camnode.parm('fileName').set(file)
    camnode.setPosition([-3,0])
    camnode.setFirstInput(scaleNode)
    camnode.parm('buildHierarchy').pressButton()

    parent = camnode.parent()
    box = parent.createNetworkBox()
    box.addItem(camnode)
    box.addItem(geoNode)
    box.addItem(scaleNode)
    node = hou.node('/obj/NL_{ep}_{shot}_Cam/NL_{ep}_{shot}_Cam/NL_{ep}_{shot}_CamShape'.format(ep=ep, shot=shot))
    node.parm("resx").set(1920)
    node.parm("resy").set(1080)

    
    fileNode = hou.node('/obj/').createNode('geo', 'filecache')
    fileNode.moveToGoodPosition()
    fileNode.setColor(hou.Color(0,0,1))
    # fileNode.setPosition([0,3])
    filecache = fileNode.createNode('filecache', 'filecache1')
    filecache.parm('filemethod').set(1)
    path = 'S:/Cache/NL/QHMX/{}/{}/`opname("..")`/$OS/$OS.$F4.bgeo.sc'.format(ep, shot)
    filecache.parm('file').set(path)
    box.addItem(fileNode)

大大降低手工操作，完成!

link q :  316853809