Robert Vinluan


About Me



Recent Forum Posts

PyQt/PySide QTableView, Houdini UI Palette and row colors June 10, 2019, 11:46 a.m.

Houdini leans heavily on stylesheets to do the core styling of its Qt UI. Unfortunately what we have learned over time is that stylesheets make it much more difficult for end users to apply their own custom styling in general.

With the next major Houdini release we will begin moving away from stylesheets and towards using an application wide QStyle and QPalette to do the core styling. This should make it easier to apply custom styles.

For Houdini 17.5, typically the workaround is to apply local stylesheets on the widgets that will have customized looks. But in some cases the best and only way is to override the painting of the widget or item delegate.


Which version of Python is best to work with H16 and forward? May 14, 2019, 1 p.m.

I know this is an old thread, but is there any news on python3 support in Houdini 17? Since Python2 is being end-of-lifed very soon ( I'm hoping not to build my new tooling around it.


There are no plans to bring Python 3 support to Houdini 17.0 or 17.5.

Our goal is to follow the VFX Reference Platform ( and ideally have a tech preview (i.e. not production ready) Python 3 build later this year for the next major Houdini release and an official build next year.


Can't export animation in FBX May 2, 2019, 4:19 p.m.

I wish they would just remove that menu-level option – I just lost time because in 17.5 Apprentice the menu-level option silently fails whereas the FBX ROP correctly warns you that FBX export is unsupported in Apprentice.

I fixed the bug on macOS and the Export FBX menu will be disabled in Houdini Apprentice starting in tomorrow's 17.5.245 build.