There is no options to select OPTIX for Cycles in Blender System settings in Blender 2025.5 - 30.11 FINAL Custom-Built Release.

Hi,

thanks for the update!

Few questions on issues I encounter:

1. Is converting materials fixed?
https://render.otoy.com/forum/viewtopic.php?t=84943

Also the converter sets diffuse BRDF model to Octane instead to Lambertian when converting.

2. What about Octane scatter improvements?
https ...

What about adding it to 2026? Is it possible now?

Hello guys,
The new displacement is completely broken when used in conjunction with a normal or bump map. Please see attached. It completely breaks the UV's

Please can this be looked at?

For landscapes, using mix material this will be super important, and means we will need to use the old ...

There are images info to be corrected too:
- RGB 32/64 should be written instead of Rgb32/64
- Grayscale 8/16 instead of Grey8/16

There is a position shift in texture displacement between normal and high settings.

New texture displacement renders 8-10 times longer compared to old one. Also There is height difference in old and new displacement with the same texture.

Texture displacement at "high quality" mode is still not usable. Viewport is slow and renders 10 or more times slower compared to normal mode. Switching the texture size to 16k makes the viewport to freeze.

These features look impressive! Thanks for sharing the roadmap.

Any chances you go back to current tools and improve them as well especially:
- scattering needs improvements in usability, object limit needs to be increased and vertex map support is needed,
- a dedicated quick denoising enabler is ...

"Normal" is the old texture displacement.

Normal does not do anything in Beta 2 build. Are there any additional steps to make it work?


The "normal" quality (old texture displacement) only works with image nodes (or baking texture). If you still can't get it to working, please provide a ...