Yeah, I think the issue is that most of a lights contribution goes into the "shadow" ray.
I'm not entirely sure why this is the case, but it seems this is how light rays function...
I will investigate this a bit more though.
In the meantime though you can control some of these things in the ...

I think there are some combability issues there.

- if you put the displacement mode in 2025.1 combability mode - color works but displacement doesn't
- if you keep it in default 2026.1 mode - it's the other way around


I've been using the displacement a lot and yes, the UVs are messed up when ...

This is a core bug: Using displacement messes with the UVs so you cant use the same input for other maps(base color, rougness, etc.)

Left is with displacement only, right is with displacement and base color.
Screenshot 2025-09-10 133504.png


Yes, there are quite a few bugs with the new octane ...

Output type for RGB Image is missing.
Distorted UVW projection node is missing.


Hey there!
Sorry for the issues you're running into.
Do you mean the Distorted Mesh UV node? It's here for me. What H version are you using?
Also what do you mean with output type for RGB image? Is this not what you ...

Hey there!
If you want to use rayswitch on your light you need to use the octane universal light!
That's the only one that has it built in.

Can we please get an eta on when we will see a new version of Octane for use with Houdini 21.0.440 and above? There are a LOT of new things to try and i would really like to stay with Octane, but if there isn't a version soon, i will be seriously looking into migrating to Karma... Please keep us ...

Not sure if it's just me but there seems to be an issue with the way the Add texture tool is implemented in the PC version of Octane (2025 and 2026) that isn't properly adding textures. It works as expected on Mac using 2025, but I get different results on PC.
I'm adding these red and green ...

Hey there!
Did you install the plugin using the json/sh workflow? Or are you using the houdini.env?
Houdini.env workflow is no longer supported and won't be working correctly

I have another crash bug to report:

The constant crash that I've just found, is somehow related to the Octane Lights (not the Universal Lights though), I am rendering to disk and after the first frame is rendered houdini crashes, you can check this hipfile I've made to reproduce the crash:
https ...

Displacement is not working correctly in this build, only if changing compatibility mode to earlier version. Any reason for this?


With this do you mean black artifacts on the displacement?
We've seen this too and reported it to the core devs. Hopefully this will be fixed in one of the upcoming ...