Tim Bacon


About Me

United Kingdom


Recent Forum Posts

Asset gallery - Variant thumbnails Aug. 16, 2022, 8:39 a.m.

Can anyone tell me where variant thumbnails actually get stored on disk? I've got an asset correctly written out from the Component Output LOP with a variant subfolder and clicking on 'Add to Asset Gallery' does exactly what it should but I was expecting the thumbnails to be written out to the same place but they're not there...

MaterialX Subnet - promoting parameters Aug. 12, 2022, 6:13 a.m.

Does anyone know if it's possible to promote parameters from inside a MaterialX subnet like with normal VOPs?

If I do so, I get the pin as usual but it doesn't appear on the subnet interface. I can make a parm on the subnet manually and relative reference it inside but would be nice to use the standard workflow...

Redshift OSL Pointcloud functions May 26, 2022, 5:16 a.m.

I'm exploring some OSL with Redshift and have hit a bit of a brick wall trying to figure out how to do a point cloud lookup. There's not much info online and a lot of it is pretty old and I'm guessing potentially out of date.

There are a couple of specific issues -

--I gather OSL needs to be built with PartIO for the point cloud functions to work
From Github https://github.com/AcademySoftwareFoundation/OpenShadingLanguage/blob/main/INSTALL.md#dependencies [github.com]
"(optional) PartIO If it is not found at build time, the OSL pointcloud functions will not be operative."

--It sounds like I need to use .ptc format - all I can find about writing that format is also to do with PartIO and I'm a bit stumped as to how to use it
https://github.com/wdas/partio [github.com]

So the first thing to establish is whether Redshift OSL implementation supports the functions or not. And if it does, do I need to bite the bullet and figure out how to get PartIO working with CMake, or however it's supposed to be done..?

Thanks for reading