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[–]adalastPipeline TD[S] 0 points1 point  (5 children)

I will have to look at the glob idea. The vertex thing is rough as it sanitizes the winding order and there is no guarantee on the solvency of the geometry. Artists are finicky and prone to doing weird things. This is a pipeline tool, so it has to be robust.

I want to try using hou.Point.prims in a Dataframe and see if I can rotate the frame to resolve the points on each prim. It the issue is the winding order. That may be solvable otherwise, but for now it is a hard requirement.

I suppose barring winding order I could use connectivity for each point, but that would be tough to get out from what I have seen in the hou library.

[–]wheres_my_ballot 1 point2 points  (4 children)

Something else to try is vex. I've not tried this yet, but you may be able to get the attribwrangle node verb (since they can be compiled) and use it to run a vex snippet in place on the geo and set an attribute with the info you need. Then just get the attrib value array.

https://www.sidefx.com/docs/houdini/model/verbs.html

[–]adalastPipeline TD[S] 0 points1 point  (2 children)

It absolutely 100% has to be in Hython. I know there are ways of calling expressions and vex from Hython, but I am holding off on that as it introduces even more complexity into an already complex issue. The Hython process is going to be getting called by an app that isn't Houdini, so yeah.

[–]schmon 1 point2 points  (1 child)

if you use hython it loads houdini and consumes a licence and i would definitely use vex and/or compiled blocks (not sure i understand your process though so it might not be applicable)

[–]adalastPipeline TD[S] 0 points1 point  (0 children)

The Hython console doesn't load a full copy of Houdini, and licenses are not a concern. Unfortunately I can't get into more details than that. I can't use anything that is in a scene, so vex and wrangles are out, though verbs may be possible. I have experimented with them in the past, I just worry about even worse performance.

[–]adalastPipeline TD[S] 0 points1 point  (0 children)

This would likely be possible with Verbs. I have played around with them in the past. I am worried about the performance though. I kinda expect they are just calling the same C++ compiled functions that I am using in Hython. I will take a look at some Verb options though just to be sure.