Forums Houdini Engine API API samples/documentation/tutorials for PDG?

API samples/documentation/tutorials for PDG?

   6007   4   1
User Avatar
LithLoren
Member
13 posts
Joined: June 2018
Offline
 
We are looking at adding more robust support for PDG in our engine. We are on Houdini version 17.5.173 and can see some PDG related API calls (C++), but I haven’t been able to find much documentation beyond that. Any help would be much appreciated.
 Report
User Avatar
seelan
Member
571 posts
Joined: May 2017
Offline
 
Currently, there isn't any documentation for HAPI PDG integration yet, but a good reference would be the Houdini Engine for Unity plugin. You can take a look at the relevant source files here: https://github.com/sideeffects/HoudiniEngineForUnity/tree/Houdini17.5/Plugins/HoudiniEngineUnity/Scripts/PDG [github.com]

Here is a list of the PDG-specific APIs in HAPI:

// Query PDG state:
HAPI_GetPDGGraphContexts
HAPI_GetPDGEvents
HAPI_GetPDGState

// Manage PDG cook:
HAPI_CookPDG
HAPI_DirtyPDGNode
HAPI_PausePDGCook
HAPI_CancelPDGCook
 
// Manage work items:
HAPI_CreateWorkitem
HAPI_GetWorkitemInfo
HAPI_GetNumWorkitems
HAPI_GetWorkitems
HAPI_CommitWorkitems
 
// Set work item data:
HAPI_SetWorkitemIntData
HAPI_SetWorkitemFloatData
HAPI_SetWorkitemStringData

// Query work item data:
HAPI_GetWorkitemDataLength
HAPI_GetWorkitemIntData
HAPI_GetWorkitemFloatData
HAPI_GetWorkitemStringData
HAPI_GetWorkitemResultInfo
 Report
User Avatar
tstex
Member
454 posts
Joined: July 2005
Offline
 
Thanks for that. Is there any update on the python api?
 Report
User Avatar
seelan
Member
571 posts
Joined: May 2017
Offline
 
The PDG python api is here: https://www.sidefx.com/docs/houdini/tops/pdg/index.html [www.sidefx.com]
 Report
User Avatar
seelan
Member
571 posts
Joined: May 2017
Offline
 
Also, we updated the docs for HAPI PDG integration for Houdini 18: https://www.sidefx.com/docs/hengine/_h_a_p_i__p_d_g.html [www.sidefx.com]
 Report
  • Quick Links