OctaneRender® 2023.1 Alpha 1

[Amaterasu]

Please explain how to use this setting, it should give the effect of the rays of light sources, but nothing like this happens, I would be glad if you tell me what I do wrong, thank you

[J.C]

Please explain how to use this setting, it should give the effect of the rays of light sources, but nothing like this happens, I would be glad if you tell me what I do wrong, thank you

From my first experiences with Octane 2023 you need to use new Analytic lights for this.

[eyeonestudio]

Enabling "Fog environment contribution" results in funky image.

The attachment Render target.png is no longer available

Fog Environment Contribution --> Lower Value

[J.C]

Enabling "Fog environment contribution" results in funky image.

Render target.png

Fog Environment Contribution --> Lower Value

What is the correct use of "Fog Environment Contribution"?

[J.C]

Can somebody explain why there are two BRDF options in Glossy and Universal material node and how to use it?

One is for the "diffuse" reflection,
the other the "specular" reflection.

Lambertian vs Oren Nayar (vs Octane's own model) differences can be found on an other release note post or online.

So the "Oren Nayar" is now a default mode for diffuse surfaces?
If I want previous behaviour Should I use "Octane"?

[john_otoy]

Enabling "Fog environment contribution" results in funky image.

Render target.png

Can you provide a simplified scene? You can replace the car with a cube, as long as the problem still happens.

[J.C]

Enabling "Fog environment contribution" results in funky image.

Render target.png

Can you provide a simplified scene? You can replace the car with a cube, as long as the problem still happens.

I've sent PM as you asked.

[J.C]

So the "Oren Nayar" is now a default mode for diffuse surfaces?
If I want previous behaviour Should I use "Octane"?

"Whatever floats your boat".

Thanks for detailed explanation. I already knew about those BRDF differences. My only concern was BRDF modes were not present for Diffuse (but only for reflection) in 2022 builds so I wondered what settings should I keep to have same look as before.

[hypeng]

Please explain how to use this setting, it should give the effect of the rays of light sources, but nothing like this happens, I would be glad if you tell me what I do wrong, thank you

Hi there,

You will need to create an analytic/directional light in the scene and toggle on the `User in post volume` bool pin for it to show up in the post volume pass.

[nuno1980]

I request you will increase the number of samples per pixel from 1M to 100M for any region picked (and/or for full image) and add the "Max. samples for region picked:" for kernel settings due to the very good/excellent (variable and fixed) caustics at Path Tracing in next version of 2023.