show VFB crash to desktop from subnet/HDA

[psanitra]

I`m running into multiple issue trying to run vray from subnet/HDA. I`m doing simple asset preview HDA, that have Rop network, material network etc inside. I`m just exposing V-ray Render button and show VFB button onto HDA as visible on attached image.

- If i have not rendered before, and i just press Show VFB , then press play button IRP, it will crash do destop. "VFH error - Terminating due unknown error", see attached video.

- if i press render first, and render, it will display VFB and render, but trying to run IPR after that, with play button from VFB, it will error out saying - "renderview not found"

[chakarov]

Hi psanitra , I've reported the problem. Just to be sure, are you using hou.parm.pressbutton() as a callback script for the buttons in HDA?

[psanitra]

chakarov I`m not using any custom python script or callbacks on that button. It literally is your "Render to disk" button on V-Ray ROP, just draged with mouse into HDA/Subnet parameter interface.

[chakarov]

Thank you, I'll add this case in our test scene too.

[chakarov]

This should be working normally in latest nightly builds.