Octane lights invisible in render viewport due to incorrect float values when opening older scenes

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All bug reports should include the information below, along with a detailed description of the issue and steps to reproduce it.
A. Operating System, including version (i.e. Win 7, OSX 10.11.2, Ubuntu 14.04, etc.)
B. Graphics Card(s) model (i.e. GTX 580 - 3GB, TITAN, etc.)
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D. Nvidia driver version (i.e. 7.50, 7.5.22)
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F. OctaneRender plugin version (i.e. v2.25 - 2.21)
G. Host application version, including build number if available (i.e. 3ds Max 2016 Build 18.0)
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SeanB3D
Licensed Customer
Posts: 2
Joined: Fri Jul 21, 2023 11:04 am

Hello!

Lights appear to be the correct size in 3ds Max's viewport, but clicking on an Octane Light ('Geo Type: Disk' in this instance) will reveal both X & Y floats are set to 0.
This wouldn't usually be a big deal but in this case it has caused all lights in those older scenes to be invisible in the render as well.
I also noticed that entering a new value, hitting enter seems to keep the floats at 0 when you click back on them again to check their parameters. Making a new light also seems to have this same issue, so I think the issue goes deeper than just older scenes.

I think this bug was marked as resolved in Octane Plugin for 3ds Max - 2026.1 - 26.3, but it has re-appeared in version 2026.2 - 26.7
The scenes I'm moving from were created in 3ds Max 2024 & Octane 2023.1.3, opening them in 3ds Max 2026.3.2 and 2026.2 - 26.7 should reproduce this issue.
OctaneLights_3dsMax2026_Octane2026.2-26.7.jpg
Everything else in older scenes seems to work great now, with only a few adjustments made, but in order for my team to move across to later versions we would need this resolved!
Thanks in advance!
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paride4331
Octane Guru
Posts: 3952
Joined: Fri Sep 18, 2015 7:19 am

Hi SeanB3D,
Here’s definitely something strange happening with all the Octane lights, the parameters are entered correctly, but once the lights are reselected, they show zero instead of the actual assigned values..
I sent my report to developers.
Regards
Paride
2 x Evga Titan X Hybrid / 3 x Evga RTX 2070 super Hybrid
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SeanB3D
Licensed Customer
Posts: 2
Joined: Fri Jul 21, 2023 11:04 am

Thanks very much!
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