Mathieu Leclaire


About Me



Recent Forum Posts

Click arrow on the exposed Group pararmeter in a subnet/HDA gives error... Aug. 7, 2018, 2:32 p.m.


I'm trying to expose/promote the Group parameter of a node inside a subnet/HDA so I can manually select points from the subnet/HDA exposed/promoted parameter. It works if we type in the values manually or select a group from the list, but as soon as I click the little arrow to make a manual selection, Houdini pops up a “argument of type ‘NoneType’ is not iterable” error message. What's going on? How can I make this work?

exr texture vop slow? May 18, 2018, 5:34 p.m.

Why is it so slow to read an exr texture inside a point vop? Am I doing something wrong? If I convert them to jpg, they read super fast. Sure, jpg are much lighter then exr, but still, the speed difference is ridiculous. And if I put the same exr in a UV quick shade, it also reads super fast. Why is it that inside a point vop context it gets so slow?

delete/dissolve polyline/edge in VEX? April 18, 2018, 11:48 a.m.

I think I understand. It really depends on the context. I have a primitive per polyline so a simple removeprim works in this case. If a primitive has multiple polylines, I need to create new primitives that won't contain the polyline I'm trying to remove.

I'm starting to wrap my head around this. If anyone has suggestions for documentation/tutorials on how to manage geometry in VEX, feel free to share and I'll look into it.