Sidefx pdg api. Here you can find terms & concepts, API documentation, source code links, and more. Apr 10, 2019 · We are looking at adding more robust support for PDG in our engine. Is there any update on the python api? Include dependency graph for PDG_API. Since you are running the Python script in-process, you can use this Python PDG API method: I have a PDG/TOPS network that generates a large variety of procedural assets. h " 14 15#include < UT/UT_Compression. Next planned ones are: Schedulers: A) How to deploy with Tractor B) How to deploy with Deadline C) How to deploy with HQueue D) How to write your own binding API The first of several to come. Hello, Looking for someone to setup Deadline or Open Firehawk or similar so we can trigger a PDG via API/HTTP calls. applicationBin(self, name, work_item) → str This callback is used when a node is creating a command that uses an application that can be parameterized by the scheduler. 6 Aug 11, 2020 · There's no immediate plan to release an HDK API for PDG, however it's definitely on the roadmap. AttributeFloat An floating point array work item attribute. At minimum ‘hython’ and ‘python’ should be supported, as this will eventually be preferred to using the command tokens __PDG_PYTHON__, __PDG_HYTHON__. inputResultData and the new pdg. Aug 9, 2024 · Learn how to expand your skills of using Houdini Digital Assets in Unreal with Editor Utility Widgets. h > Include dependency graph for PDG_SortOptions. h " 13#include " PDG_AttributeTypes. h " 13 14#include < SYS/SYS_Types. 6 Processors are one of the main types of node in a PDG graph. Aug 15, 2019 · Is this a case of the Python reference being out of date, or is this just a peculiarity of the API? I've checked both 17. PDG provides a rich set of stock nodes to enhance productivity, and manages the dependencies smartly to minimize recompute upon changes. 2016 Offline Aug. 461 there is a new scheduler API callback `applicationBin` which should be implemented by custom schedulers. Next planned ones are: Schedulers: A) How to deploy with Tractor B) How to deploy with Deadline C) How to deploy with HQueue D) How to write your own binding API For instance, PakWak's thumbnail, that you lured us in with. Sep 3, 2025 · Include dependency graph for PDG_AttributeEvaluatorCache. I'm using a HQScheduler. m. inputFiles method replaces pdg. There's no immediate plan to release an HDK API for PDG, however it's definitely on the roadmap. h: This graph shows which files directly or indirectly include this file: Apr 7, 2020 · For example, I have WEB client and I would like to retrieve PDG state using standard socket API - is it possible? What the minimum requirement to get data from the State Server (just make it as light as possible)? 5 * 6 * COMMENTS: 7 */ 8 9#ifndef __PDG_SERIALIZATION_OPTIONS_H__ 10#define __PDG_SERIALIZATION_OPTIONS_H__ 11 12#include " PDG_API. PDG PDG Python API ディペンデンシーグラフを扱うためのPython PDGパッケージのクラスと関数。 PDG Job Python API ジョブスクリプトで使用するPython API So we can do more geometry processing with PDG, and it will be much stable and faster. h " 15 16#include < UT/UT_StringHolder. h " 14#include " PDG_RegisteredType. This software is proprietary to 3 * Side Effects Software Inc. May 6, 2023 · Stable Houdini is a free open-source Stable Diffusion toolkit for Houdini, based on Automatic1111 api. API attributes pdg. The tech is available in the upcoming release of Houdini 17. PDG is designed to describe these dependencies visually using nodes that generate sets of actionable tasks then distributes them to multiple cores on the same machine, the compute farm, or even the cloud. h "#include < UT/UT_StringMap. __PDG_TEMP__ is only really used for commands on jobs that run out of process where the $PDG_TEMP environment variable is automatically defined. If you are interested in creating a plug-in for your favorite app, you can get started right away! Ah, awesome, thanks! I logged RFE #95416 to add a link to that page on each Python* TOP's doc card. For example, for a parameter on the Python Script node itself, you could do: The first of several to come. 6 PDG PDG_MemoryInfo. h Generated on Sat Jun 14 2025 02:49:41 for HDK by 1. Next planned ones are: Schedulers: A) How to deploy with Tractor B) How to deploy with Deadline C) How to deploy with HQueue D) How to write your own binding API May 6, 2023 · Stable Houdini is a free open-source Stable Diffusion toolkit for Houdini, based on Automatic1111 api. 5发布会上关于PDG讲解的内容了，后面的时间SideFX请出了MPC的流程主管上台发言，Bill Polson对比了迪士尼的USD流程，对PDG的前景大加称赞。 SideFX指出PDG让Houdini程序化思想得到了升华，让整个VFX流程更进了一步。 2 * PROPRIETARY INFORMATION. The classes and functions in the Python pdg package for working with dependency graphs. The whole process runs on a build farm for performance reasons. 19, 2020 9:59 p. 173 and can see some PDG related API calls (C++), but I haven’t been able to find much documentation beyond that. We are on Houdini version 17. Goal is to trigger a PDG via an API. First explore the differences between Scriptable Tools and Editor Utility Widgets, then go on to find out how to utilize the Houdini Engine Public API to create custom interfaces for your HDAs. All parameters on the TOP node itself are accessible through the underlying PDG node's API. So far, everything works fine - when I trigger a cook from within Houdini on my local machine, the HQueue server API usage example Here is a python example showing how to retrieve the latest linux daily build using our python library (see: Python Reference Implementation), you first need to download the sidefx. This allows the host application to provide the user with PDG cook controls such as dirtying and cooking. 5. h > 15 16/** 17 5 * 6 * COMMENTS: 7 */ 8 9#ifndef __PDG_DEPENDENCY_H__ 10#define __PDG_DEPENDENCY_H__ 11 12#include " PDG_API. 2007 Offline March 18, 2019 12:06 p. Public APIは、HDAに1つまたは複数のTOPネットワークが含まれている場合、PDG Asset Linkとのやり取りをサポートします。 PDG関連のイベントには2つのデリゲートがあります: As of 18. Ken, I watched your masterclass (thanks, BTW), but I think there still room to talk more about mappers and where to use them. CREATE A TASK WORKFLOW TO BUILD CITIES To manage pipeline workflows, you can turn to Task Operators (TOPs) which are built using a technology called PDG which stands for Procedural Dependency Graph. In my "Geometry Import" node, I have copied all geometry attributes from the Primitive class. Workflows created using PDG use TOP nodes that generate work items that distribute tasks to either your local computer or a larger compute farm. click on website button to trigger render Is that something that can be done using AWS, Deadline, and UBLs? or do we need to setup Hqueue/Houdini on some server? Mar 17, 2019 · 这就是整个Houdini 17. 0. h Generated on Wed Aug 27 2025 03:09:25 for HDK by 1. The HDK documentation is for the Houdini Developer’s Kit which is a comprehensive set of C++ libraries that give third party developers access to the same API used by developers at SideFX. So far, everything works fine - when I trigger a cook from within Houdini on my local machine, the HQueue server I have a PDG/TOPS network that generates a large variety of procedural assets. Thanks, Amir Work items (jobs) which cook out-of-process will often want to send data or their statuses back to PDG. Thanks, Amir Report Show recent posts Show unanswered posts Looking for someone to setup Deadline or Open Firehawk or similar so we can trigger a PDG via API/HTTP calls. onPartition(self, partition_holder, work_items) → pdg. h Generated on Tue Jul 8 2025 02:51:29 for HDK by 1. outputFiles method replaces pdg. resultData. The first of several to come. For example, for a parameter on the Python Script node itself, you could do: We are on Houdini version 17. h Generated on Wed Sep 3 2025 02:36:17 for HDK by 1. Report seelan Member 571 posts Joined: May 2017 Offline April 10, 2019 8:53 a. h: This graph shows which files directly or indirectly include this file: BUILD A CITY WITH PDG To manage pipeline workflows, you can turn to Task Operators (TOPs) which are built using a technology called the Procedural Dependency Graph (PDG). pdg. In this tutorials I explain how to use it for a variety of tasks. We are looking at adding more robust support for PDG in our engine. h: This graph shows which files directly or indirectly include this file: The auto-cook setting for the PDG asset link is not currently exposed via the public API, so the user must call PDGCookNode() or PDGCookOutputsForNetwork() to cook PDG. Any help would be much appreciated. py file: import sidefx if __name__ == '__main__': # Relevant part of the example starts here. 8. h: This graph shows which files directly or indirectly include this file: For instance, PakWak's thumbnail, that you lured us in with. AttributeFile A file array work item attribute. The Partitioner node API reference has a detailed explanation for each of the callback functions that you can implement. Thanks, Amir Report Show recent posts Show unanswered posts We are looking at adding more robust support for PDG in our engine. Looking for someone to setup Deadline or Open Firehawk or similar so we can trigger a PDG via API/HTTP calls. AttributeDictionary A dictionary array work item attribute. The heavy lifting is done in an external SOP which is invoked via a HDA processor node in the PDG/TOPs net. The TOP network lets you determine the dependencies between diferent work items Journal Categories Keywords Version From Build To Build Show Versions Show Compatibility Display per page Jul 9, 2019 · At some point in the future we'll get a C++ API to PDG, and that'll allow you to write more in process code - however, even then, it's unlikely you can just call into any geometry code - not all our geometry code is thread safe. h "#include < UT/UT_StringHolder. AttributeInt An integer array work item attribute. . AttributePyObject May 23, 2023 · In this video, I created a simple procedural book, then created variations using PDG (using wedge TOP), load and save all variants to a single USD file, and then save each USD variant to the USD Mar 29, 2024 · Use SideFX Labs' Vertex Animation Textures Tool With Houdini's PDG Houdini creator SideFX Labs has shared a new tutorial on using Houdini's PDG to automate variation creation, caching, and exporting of VAT assets to Unreal Engine. evaluate(work_item) In a Python Script node, the self variable is an instance of this class: https Are the API docs available somewhere? Apologies in advance, if I'm just missing them being under my nose! Very grateful for the TOPS docs, thank you! You can also access global attributes with the @attribute syntax as long as no work item attributes with the same name exist in their scene, or with the PDG Python API by using any of the methods for creating and querying attribute data. So we can do more geometry processing with PDG, and it will be much stable and faster. h > Include dependency graph for PDG_AttributePyObject. パイプラインツール PDG 技術へのアクセス Houdini とそのノードベースワークフローは、パイプライン機能一式とよく評されます。PDG を使用することで、これをさらに大型プロシージャルパイプラインに拡大できます。PDG により、タスクの整理とスケジュール、そして、それらを並列処理する 27 /* 28 * Groups work items into separate classes based on their attributes 29 */ 30 class PDG_API PDG_AttributeClassify 31 { 32 public: 33 /// A map of attribute hash to the work items that match that particular 20 /** 21 * Utiliy class for working with work items over a frame range 22 */ 23 class PDG_API PDG_FrameUtils 24 { 25 public: 26 /// Array of arrays of workitems, used when splitting a list of This scheduler node utilizes Thinkbox’s Deadline to schedule and execute PDG work items on a Deadline farm. h > 17 18class PDG_GraphContext 19class PDG_Node 20 21 class PDG_API PDG_Dependency public PDG_TypeInstance 22 23public 24 PDG_Dependency 25const PDG_BaseType type 26const PDGT Jul 8, 2025 · Include dependency graph for PDG_JobScriptInfo. h "#include < UT/UT_Array. result value that indicates that status of the partitioning operation. Edited by EricSheng - Aug. To use this scheduler, you need to have the Deadline client installed and working on your local machine. , and is not to be reproduced, For instance, PakWak's thumbnail, that you lured us in with. PDG is a procedural architecture designed to distribute tasks and manage dependencies to better scale, automate, and analyze content pipelines for Film, TV, Games, Advertising and VR. However, if the job produces output files that contain information PDG should know about, then you can use this API to report that information back to PDG. PDG Python and Job API result data methods are now deprecated and have been replaced by new methods with names that reference input file and output file. html PDG のための Generate credentials for API access Constructing API Requests Sequence of Events Python Reference Implementation Using the Python library Sequence of Events Python Reference Implementation Using the Python library Download API API methods API usage example API methods API usage example License API API methods API usage example API methods API Mar 14, 2019 · TORONTO: March 8, 2019 – SideFX is pleased to announce the release of Procedural Dependency Graph (PDG) technology. 6 Include dependency graph for PDG_Filter. h: #include " PDG_API. AttributeOwner. You can bind global attributes to a work Sep 3, 2025 · PDG PDG_AttributeClassify. PDG Job Python API Python API used by job scripts. Are the API docs available somewhere? Apologies in advance, if I'm just missing them being under my nose! Very grateful for the TOPS docs, thank you! PDG Python API The classes and functions in the Python pdg package for working with dependency graphs. If you want to use it in-process, you'll have to use the scheduler python API So we can do more geometry processing with PDG, and it will be much stable and faster. Sep 5, 2025 · Include dependency graph for PDG_LoopInfo. 2 * PROPRIETARY INFORMATION. 23 * */ 24 class PDG_API PDG_DependencyHolder 25 26 27public 28 PDG_DependencyHolder 29 PDG_DependencyHolder 30const PDG_WorkItemArray 31 32bool 33 PDG_WorkItem 34 PDG_WorkItem 35 UT_WorkBuffer 36const PDG_WorkItemPairArray 37 dependencyPairs const 38return 39 40protected 41bool PDG_WorkItem const 42 43 PDG_WorkItemPairArray myDependencyPairs 44 PDG_WorkItemIDSet myValidSet 45 46 47#endif UT 15 16 class PDG_API PDG_SchedulerUtils 17 18public 19 /// Returns the number of logical cores available 20staticint 21static UT_StringMap<UT_StringHolder> 22 23 /// Helper functions for local-schedulers - execute in child process 24 /// before exec (Posix only) 25staticvoid 26 /// Helper function for local-schedulers - adds new process to Aug 6, 2025 · Include dependency graph for PDG_FileUtils. h: This graph shows which files directly or indirectly include this file: PDG PDG_FileDependency. h > 18#include < UT/UT_StringArray. pdg https://www. Next planned ones are: Schedulers: A) How to deploy with Tractor B) How to deploy with Deadline C) How to deploy with HQueue D) How to write your own binding API Yeahh, will be nice to know more about the API and why there are some differences from hou, like, why something like self. 6 Custom scheduler bindings can use their own application ‘names’ to work with custom nodes. h Generated on Wed Jan 29 2025 02:46:33 for HDK by 1. Next planned ones are: Schedulers: A) How to deploy with Tractor B) How to deploy with Deadline C) How to deploy with HQueue D) How to write your own binding API PDG Python API The classes and functions in the Python pdg package for working with dependency graphs. h " 16 17#include < PDGE/PDGE_EvaluationOptions. sidefx. For example, for a parameter on the Python Script node itself, you could do: Aug 12, 2025 · PDG PDG_AttributeGeometry. Each processor node is capable of producing new work items using upstream input work items, parameters on the node itself and/or external resources. Include dependency graph for PDG_EventEmitter. The TOP network lets you determine how diferent work Typically, parameters involved in PDG script code are evaluated using the PDG API not through HOM. PDG PDG_API. , and is not to be reproduced, 20 */ 21 class PDG_API PDG_WorkItemStats 22 23public 24 /// Enumeration of stats stored in this object 25 enum StatType 26 27 /// The time at which the work item was submitted to the PDG 28 /// scheduler queue 29 eQueueTime 30 31 /// The time at which the work item was passed to the 32 /// onSchedule call for the active scheduler 33 Journal カテゴリー Keywords Version From Build To Build Show Versions Show Compatibility Display per page Hi all, I have a PDG/TOPS network that generates a large variety of procedural assets. This node can be used to write custom partitioner logic using the Python API. h > Include dependency graph for PDG_DependencyHolder. Thanks for that. 5 as a new Houdini operating context called TOPs (Task Operators) and as a standalone application called PilotPDGTM. h > Include dependency graph for PDG_SchedulerUtils. Additionally, you must also have Deadline set-up on your farm machines to receive and execute jobs. result This callback is evaluated once for each partitioner during the cook of a PDG graph, or once for each unique attribute value (if Split by Attribute is turned on). PDG PDG_ServiceOptions. h: This graph shows which files directly or indirectly include this file: #include " PDG_API. You will have to Jun 5, 2019 · All parameters on the TOP node are directly accessible as PDG node parameter via the Python API. h " 13 14#include " PDG_CustomHandlers. h: This graph shows which files directly or indirectly include this file: So we can do more geometry processing with PDG, and it will be much stable and faster. h: This graph shows which files directly or indirectly include this file: Typically, parameters involved in PDG script code are evaluated using the PDG API not through HOM. h > 16 17class UT_WorkBuffer 18 19/** 20 * Stores a list of parsed attribute query tokens, to speed up evaluation 21 * when matching the same query across multiple parm expression evaluations 22 */ 23 class PDG_API PDG_AttributeQuery 24 25public 26 /// Query entry, with a pre-parsed integer value to avoid having to Custom scheduler bindings can use their own application ‘names’ to work with custom nodes. 6 Typically, parameters involved in PDG script code are evaluated using the PDG API not through HOM. h "#include " PDG_AttributeData. For example, the new pdg. , and is not to be reproduced, All Categories Product Buy Industry Learn Content Library Featured Tutorial SideFX News Event Contests and Jams Documentation Help Desk | FAQ School Gallery Forum Jul 9, 2019 · At some point in the future we'll get a C++ API to PDG, and that'll allow you to write more in process code - however, even then, it's unlikely you can just call into any geometry code - not all our geometry code is thread safe. The auto-cook setting for the PDG asset link is not currently exposed via the public API, so the user must call PDGCookNode() or PDGCookOutputsForNetwork() to cook PDG. h " 15#include " PDG_Filter. I still don´t understand why the attributes are lost when there is a mapper in the middle… Feb 28, 2023 · I've had a problem similar to a few others, trying to export multiple fbx files based on an attribute that is generated on the PDG work items. The server cannot serve over a public-facing interface. Graph subclasses from pdg. For example, for a parameter on the Python Script node itself, you could do: value=self['newparameter']. Custom scheduler bindings can use their own application ‘names’ to work with custom nodes. Jul 20, 2019 · API - A deep dive on the PDG API. 5 * 6 * COMMENTS: 7 */ 8 9#ifndef __PDG_MEMORY_INFO_H__ 10#define __PDG_MEMORY_INFO_H__ 11 12#include " PDG_API. e. How can I utilize PDG in Houdini software to create a flipbook with multiple cameras, and then generate a mosaic of those flipbooks using the ImageMagick node in PDG? Additionally, how can I incorporate OpenGL to render my flipbook? Edited by gregjenings - May 22, 2023 06:35:42 Report Enivob Member 2625 posts Joined: June 2008 Offline May 22, 2023 7:44 a. h > 19 20/** 21 * Options available to configure the behavior of a PDG cook 22 */ 23 struct PDG_API PDG_CookOptions public PDGE 2 * PROPRIETARY INFORMATION. Next planned ones are: Schedulers: A) How to deploy with Tractor B) How to deploy with Deadline C) How to deploy with HQueue D) How to write your own binding API Typically, parameters involved in PDG script code are evaluated using the PDG API not through HOM. h > 16#include < UT/UT_StringHolder. com/docs/houdini/tops/pdg/index. For use cases that can expressed as a single line Python or HScript expression, the Partition by Expression is a Typically, parameters involved in PDG script code are evaluated using the PDG API not through HOM. evalParm must be different in PDG. The callback function is expected to return a pdg. 12, 2020 05:24:46 Report chrisgreb Member 603 posts Joined: Sept. h Generated on Tue Aug 12 2025 02:48:11 for HDK by 1. Typically, parameters involved in PDG script code are evaluated using the PDG API not through HOM. Apr 7, 2020 · Hi all, I have a PDG/TOPS network that generates a large variety of procedural assets. CUSTOM PLUG-INs | The Houdini Engine API can be used to create plug-ins for any number of applications. In addition to outputting files We are looking at adding more robust support for PDG in our engine. h: This graph shows which files directly or indirectly include this file: 15#include < UT/UT_StringHolder. h " 13#include " PDG_NodeTypes. g. WorkItem. 347 and the discrepancy exists in both. What part of that image is PDG? Did he used PDG to greeble the geometry? Was PDG used to make the clouds? Can SideFX post some really “WOW” eye candy that is only possible using PDG? People here want to see things that you've shown broken down with a masterclass/similar. It works in PDG and consists of a bunch of useful nodes for neural network image processing. The node is able to set attribute values on the work items, configure the command line for the work item and define if the work item should be evaluated in a child process or in the How do I use Houdini products in the Cloud? Running the Houdini license server in the cloud You can run the Houdini license server (sesinetd) on a cloud instance but you have to ensure that it is a persistent instance that will maintain it's machine name. The PDG graph must be explicitly cooked using provided HAPI PDG API. The PDG Scheduler can track when a job starts and if it succeeds or fails independent of the job script. You can only serve client machines over a private network. This page is on the Pixar website, and is maintained by the oficial development team. h > 17 18/* 19 * Configuration options for serializing work items 20 */ 21 struct PDG_API PDG_SerializationOptions 22 23 /// Enumeration of supported file Hi there, The pdgcmd module is for out-of-process jobs. h: This graph shows which files directly or indirectly include this file: Link This is the most in-depth resource on all of the technical details of USD. goldleaf Staff 4073 posts Joined: Sept. For example, like the pdg. Hourly contract to start ASAP. Please let us what further questions / topics we could address beyond those above. PDG will call the script hooks on this node to partition upstream work items. h "#include " PDG_WorkItemTypes. 173 and 17. AttributePattern A utility for matching attribute names to a pattern. 5 * 6 * COMMENTS: 7 */ 8 9#ifndef PDG_COOK_OPTIONS_H 10#define PDG_COOK_OPTIONS_H 11 12#include " PDG_API. , and is not to be reproduced, Ah, awesome, thanks! I logged RFE #95416 to add a link to that page on each Python* TOP's doc card. Edited by EricSheng - 2020年8月12日 05:24:46 Report chrisgreb Member 603 posts Joined: 9月 2016 Offline 2020年8月19日 21:59 There's no immediate plan to release an HDK API for PDG, however it's definitely on the roadmap. #include " PDG_API. DM me or email me if you can help. PDG's evaluate method is what makes it possible for the @attributes to work in parameters, since it configures an evaluation context based on the work item you want to evaluate with. nalawirdx amjkrl pxqb sdga yvgj isvz asxib urwfyh clrw qxzc