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官方 商城
Python Editorhttps://www.fab.com/listings/f4c99ba0-1a86-4f6a-b19d-2fd13f15961b GitHUB
好像只更新到了2020年4.2x的版本。可能有大佬改了5.x的版本。也希望分享给我一份。谢谢
https://github.com/20tab/UnrealEnginePython 学习笔记
网上教程一大堆。…
插件
官方 商城
Python Editorhttps://www.fab.com/listings/f4c99ba0-1a86-4f6a-b19d-2fd13f15961b GitHUB
好像只更新到了2020年4.2x的版本。可能有大佬改了5.x的版本。也希望分享给我一份。谢谢
https://github.com/20tab/UnrealEnginePython 学习笔记
网上教程一大堆。边学边写。学会到哪写到哪。哪天不更新了。就是这个笔记又太监了。写的不对的地方喷的时候也麻烦轻点。
Sequencer中的Python脚本https://dev.epicgames.com/documentation/zh-cn/unreal-engine/python-scripting-in-sequencer-in-unreal-engine?application_version5.0
UE 使用Python控制Sequencehttps://zhuanlan.zhihu.com/p/13347612063
这下面这个文档解释的比较细
UE5 中用 Python 接口创建 Level Sequence 与设置 TriggerEvent-腾讯云开发者社区-腾讯云遇到了一个美术需求需要批量读取一段动画制作成 UE 中的 Level Sequence然后给动画添加几个 Event Track。随后需要在 Event Track 中添加 Trigger Event设置插件 uDraper 布料的缓存数据路径。总之最终效果如下https://cloud.tencent.com/developer/article/2146577 跟着学的案例
目前还没“复刻”成功复制粘贴都不行.gif 复刻成功没学会
1.这个Json文件少了个]。其他按照他这个做基本能复刻。
UE5 Python脚本自动化Sequence Key帧_ue sequnece python-CSDN博客
2.Jsonlatitudelongitudeelevation Python(uexueyuez)。因为我没有PythonEditor所以改成了固定的main方式。
【UE4】Python读取Json数据创建对应关卡序列_json设计关卡-CSDN博客
Json相关
读取祖传代码
(filename 外部输入的名字特别要注意的是Json格式问题。 #def JsonGetData(filename):# 读取/项目目录/JsonFile中的JSON文件数据存入json_dataroot_path unreal.SystemLibrary.get_project_directory() Content/Json/final_path root_path filename .jsonfp open(final_path, r, encodingutf-8)json_str fp.read()json_data json.loads(json_str)unreal.log( INFO: Json Get OK )return json_data
报这个错误就是Json格式出现问题了。 JSON在线 | JSON解析格式化—SO JSON在线工具
解析
示例
commands: [{commandtype: Create,objectcreateinfo: {object: {id: 1,objecttype: myship},propertys: [{key: DisplayName,value: 我的船,propertytype: String,displaystring: 我的船}], #读取各项数据创建关键帧commands json_data[commands]#循环获取commands里面的数据for index in range(0,len(commands)):#for command in commands:#json中commandtype为Create时执行if commands[index][commandtype] Create:# 获取到commands-objectcreateinfo-object-objecttype这一层是否等于myshipif commands[index][objectcreateinfo][object][objecttype] myship: Main方法
没有这个函数的话。直接右键运行是不会执行任何东西的。
//有这个右键脚本运行才能有效
if __name__ __main__:create() python获取场景中的actor # 获取Actor子系统以抓取选定的Actoractor_system unreal.get_editor_subsystem(unreal.EditorActorSubsystem)# 获取选定的Actoractor actor_system.get_selected_level_actors()[0]# 将Actor作为可拥有物添加到关卡中actor_binding level_sequence.add_possessable(actor)# 刷新以直观地查看添加的新绑定unreal.LevelSequenceEditorBlueprintLibrary.refresh_current_level_sequence()# 使用绑定将轨迹添加到Sequencer由轨迹类型指定transform_track actor_binding.add_track(unreal.MovieScene3DTransformTrack)
属性/状态 #transform# 将分段添加到轨迹以便能够设置范围、参数或属性transform_section transform_track.add_section()#位移:获取位置的xyz通道channel_location_x transform_section.get_channels()[0]channel_location_y transform_section.get_channels()[1]channel_location_z transform_section.get_channels()[2]#获取旋转yz的关键帧channel_rotation_x transform_section.get_channels()[3]channel_rotation_y transform_section.get_channels()[4]channel_rotation_z transform_section.get_channels()[5]#添加关键帧links json_path[links]for index in range(0, len(links)):new_time0 unreal.FrameNumber(valueindex*int(json_path[fov]))#channel_fov.add_key(new_time0, float(json_path[fov]), 0.0)channel_location_x.add_key(new_time0, float(links[index][x]), 0.0)channel_location_y.add_key(new_time0, float(links[index][y]), 0.0)channel_location_z.add_key(new_time0, float(links[index][z]), 0.0)channel_rotation_x.add_key(new_time1, float(links[index][roll]), 0.0)channel_rotation_y.add_key(new_time1, float(links[index][pitch]), 0.0)channel_rotation_z.add_key(new_time1, float(links[index][yaw]), 0.0)#设置显示隐藏:#为actor添加可视性(隐藏)关键帧channel_visibility_bool visibility_section.get_channels()[0]#添加关键帧channel_visibility_bool.add_key(new_time,False)
获取蓝图自定义的变量感谢DeepSeeK
import unreal# 方法1获取当前关卡中所有蓝图实例
def get_blueprint_variable(actor_class_name, variable_name):# 获取当前关卡所有Actoractors unreal.EditorLevelLibrary.get_all_level_actors()# 遍历查找目标蓝图类实例for actor in actors:if actor.get_class().get_name() actor_class_name:# 检查变量是否存在if actor.property_exists(variable_name):value actor.get_editor_property(variable_name)print(fFound variable {variable_name}: {value})return valueelse:print(fVariable {variable_name} not found in actor.)return Noneprint(fActor of class {actor_class_name} not found.)return None# 使用示例获取类名为MyBlueprintClass的Actor的MyVariable变量
get_blueprint_variable(MyBlueprintClass, MyVariable)# 方法2通过选中Actor获取需提前在编辑器中选中
selected_actors unreal.EditorLevelLibrary.get_selected_level_actors()
if selected_actors:actor selected_actors[0]value actor.get_editor_property(MyVariable)print(fSelected actors variable value: {value})#我自己是用的这个写法上面都是DeepSeek发的# 获取Actor子系统以抓取选定的Actoractor_system unreal.get_editor_subsystem(unreal.EditorActorSubsystem)# 获取选定的Actoractor actor_system.get_selected_level_actors()[0]print(actor)value actor.get_editor_property(TestInt)
Sequence添加Int/float轨道 # 创建整型轨道intint_track actor_binding.add_track(unreal.MovieSceneIntegerTrack)property_name_int VAR_Indexint_track.set_property_name_and_path(property_name_int, property_name_int)#将分段添加到轨迹以便能够设置范围、参数或属性int_section int_track.add_section()#设置开始和结束帧数int_section.set_start_frame_seconds(0)int_section.set_end_frame_seconds(600)channel_int int_section.get_channels()[0] # 假设第一个通道是整型通道 # 创建浮点轨道假设变量类型为floatfloat_track actor_binding.add_track(unreal.MovieSceneFloatTrack)property_name Alphafloat_track.set_property_name_and_path(property_name, property_name)#将分段添加到轨迹以便能够设置范围、参数或属性float_section float_track.add_section()#设置开始和结束帧数float_section.set_start_frame_seconds(0)float_section.set_end_frame_seconds(600)channel_float float_section.get_channels()[0] # 假设第一个通道是float通道links json_path[links]for index in range(0, len(links)):new_time0 unreal.FrameNumber(valueindex*int(json_path[fov]))#channel_fov.add_key(new_time0, float(json_path[fov]), 0.0)channel_int.add_key(new_time0, float(links[index][va]), 0.0)#print(index,float(links[index][va]))#float_track.add_key(new_time0, float(links[index][al]), 0.0)channel_float.add_key(new_time0, float(links[index][al]), 0.0) 尝试
Json
{starttimestamp: 0,endtimestamp: 600,frametime: 60,seqname: VideoPlayerSeqSpline,fov: 60,links: [{x: 0,y: 0,z: 0},{x: 1088.2844551244866,y: -6.1749946553391055e-05,z: 9.0949470177292824e-13},{x: 962.03462911456836,y: 1326.0205919409059,z: -2.1247876702545909e-07},{x: 1655.6119959682651,y: 1939.9672775097956,z: 6.2318827929175313e-06},{x: 2921.7209372361831,y: 1163.8111134544288,z: -1.546140993013978e-11},{x: 3168.7212710348158,y: -502.86935341987612,z: 36.471531137039221},{x: 3168.7212776581878,y: -1900.5658369533642,z: 36.471531137031945},{x: 3168.7212858682856,y: -2762.9053314381854,z: 15.992892525690252},{x: 1705.8193762352209,y: -2821.7894823782708,z: 15.992892525679338},{x: 1705.8193759169985,y: -1617.7851900597982,z: 15.992892525679792},{x: 273.03898678036694,y: -1617.7851516590028,z: 15.992892525679792}]
}
Python
#连接虚幻API库
import unreal,json,osdef JsonGetData(filename):# 读取/项目目录/JsonFile中的JSON文件数据存入json_dataroot_path unreal.SystemLibrary.get_project_directory() Content/Json/final_path root_path filename .jsonfp open(final_path, r, encodingutf-8)json_str fp.read()json_data json.loads(json_str)unreal.log( INFO: Json Get OK )return json_datadef Seqcreate():json_path JsonGetData(test)# 获取资产工具asset_tools unreal.AssetToolsHelpers.get_asset_tools()# 在根内容文件夹中创建一个名为LevelSequenceName的关卡序列level_sequence unreal.AssetTools.create_asset(asset_tools, asset_namejson_path[seqname],package_path/Game/Sequence/,asset_classunreal.LevelSequence,factoryunreal.LevelSequenceFactoryNew())# 创建一个帧率对象并设置为所需的fps数值frame_rate unreal.FrameRate(numeratorjson_path[frametime], denominator1)# 设置显示速率level_sequence.set_display_rate(frame_rate)# 设置播放范围level_sequence.set_playback_start(json_path[starttimestamp])level_sequence.set_playback_end(json_path[endtimestamp])# 获取Actor子系统以抓取选定的Actoractor_system unreal.get_editor_subsystem(unreal.EditorActorSubsystem)# 获取选定的Actoractor actor_system.get_selected_level_actors()[0]# 将Actor作为可拥有物添加到关卡中actor_binding level_sequence.add_possessable(actor)# 刷新以直观地查看添加的新绑定unreal.LevelSequenceEditorBlueprintLibrary.refresh_current_level_sequence()# 使用绑定将轨迹添加到Sequencer由轨迹类型指定transform_track actor_binding.add_track(unreal.MovieScene3DTransformTrack) # 将分段添加到轨迹以便能够设置范围、参数或属性transform_section transform_track.add_section()transform_section.set_start_frame_seconds(json_path[starttimestamp])transform_section.set_end_frame_seconds(json_path[endtimestamp])channel_location_x transform_section.get_channels()[0]channel_location_y transform_section.get_channels()[1]channel_location_z transform_section.get_channels()[2]links json_path[links]for index in range(0, len(links)):new_time0 unreal.FrameNumber(valueindex*int(json_path[fov]))#channel_fov.add_key(new_time0, float(json_path[fov]), 0.0)channel_location_x.add_key(new_time0, float(links[index][x]), 0.0)channel_location_y.add_key(new_time0, float(links[index][y]), 0.0)channel_location_z.add_key(new_time0, float(links[index][z]), 0.0)unreal.EditorAssetLibrary.save_loaded_asset(level_sequence, False)# 刷新以直观地查看新增的轨迹和分段unreal.LevelSequenceEditorBlueprintLibrary.refresh_current_level_sequence()unreal.log( INFO: Seq Create Completed Please check the file)if __name__ __main__:Seqcreate()
