Houdini Instancing bug Tweet

[MagnusL3D]

Houdini Instancing not working with 2+ instance attributes. Tested with both latest v3 and v4 in both 16.5 and 17.0 with latest supported production builds.

Image attached to show that the 2nd instance attribute for some reason gets ignored.

[juanjgon]

Hi,

Sorry, I'm testing this feature here and here it seems to work fine. The "instance" attribute can point to any available OBJ node without problems, rendering all of them. Can you send me the scene to take a look a and check what could be the problem?

Thanks,
-juanjo

[MagnusL3D]

I figured it out, if the object the instance attribute is pointing at has its blue display flag turned off it doesnt work in Octane (it works in Mantra / Redshift / Arnold).

Here is link to .HIP where it fails. Done in 17.0.352 and 4.00.0.21.
https://drive.google.com/file/d/1lcLio_ ... p=drivesdk

[juanjgon]

Yes, sorry, currently the objects to be instanced must be enabled for rendering because if they are not extracted, the plugin can't instance them. In any case, you have an option in the Octane OBJ spare parameters to hide the master object from rendering, if needed.

Hope it helps,
-Juanjo

[MagnusL3D]

I seem to remember that this was working before, so did something change ? Just curious =) Thanks for the info.

[juanjgon]

I seem to remember that this was working before, so did something change ? Just curious =) Thanks for the info.

Nope, sorry, this is the behavior of the Octane plugin from the beginning, as far as I can remember. The objects to be instanced must be always enabled to let the plugin extract it without needing a second extraction pass or a scene preprocessing. This is something that could be fixed from the plugin side, I have this feature on my TODO list, but well, the workaround is easy, so I don't have any ETA about when it could be available.

Thanks,
-Juanjo

[MagnusL3D]

I seem to remember that this was working before, so did something change ? Just curious =) Thanks for the info.

Nope, sorry, this is the behavior of the Octane plugin from the beginning, as far as I can remember. The objects to be instanced must be always enabled to let the plugin extract it without needing a second extraction pass or a scene preprocessing. This is something that could be fixed from the plugin side, I have this feature on my TODO list, but well, the workaround is easy, so I don't have any ETA about when it could be available.

Thanks,
-Juanjo

Thanks for the update, was very curious because I rember doing test renders and it worked, and then it suddenly stopped..but i guess I must changed something myself then

[juanjgon]

The next Octane 2020.1 plugin build will support the instancing of objects that are disabled. In this case, the master objects will be hidden automatically.

Thanks,
-Juanjo

[efxlab]

From the actual XB3 ?

[juanjgon]

Nope, in the upcoming 2020.1.0.3 RC1 build ...

Thanks,
-Juanjo