Page 1 of 1

Layer reflections AOV

Posted: Mon Jan 13, 2025 7:50 pm
by noldo
I am not clear on how the Layer reflection AOV works.
If I activate both the Layer shadows AOV and the Layer reflection AOV in a material for example with red diffusion (not metallic) and a certain reflection, I get correct gray shadows, but a red reflection.
The reflection, in a non-metallic material, even if red, should be gray or am I doing something wrong?
Thanks

Re: Layer reflections AOV

Posted: Tue Jan 14, 2025 7:25 am
by bepeg4d
Hi,
always better to post some screenshots, anyway, everything seems ok, from what you have written.

If you have a red object on a mirror floor, what are you expecting to see reflected in the floor?

A red or gray object?

ciao,
Beppe

Re: Layer reflections AOV

Posted: Tue Jan 14, 2025 5:50 pm
by noldo
bepeg4d wrote:Hi,
always better to post some screenshots, anyway, everything seems ok, from what you have written.

If you have a red object on a mirror floor, what are you expecting to see reflected in the floor?

A red or gray object?

ciao,
Beppe
Sorry, I'll try to be clearer.
First of all I attach the test scene
Reflection test.ocs
(68.24 KiB) Downloaded 591 times
The scene is composed of two render layers and three Render AOVs (Reflection, Layer reflection and Layer shadow).
1.jpg
From the scene, by disabling the Render Layer, it is possible to see in the Reflection AOV how the reflections are colorless despite the reflective material (not reflected) being red.
2.jpg
By reactivating the Render layer, the Layer reflection AOV instead contains, in addition to the reflections, also a contamination of the red of the material.
3.jpg

Re: Layer reflections AOV

Posted: Wed Jan 15, 2025 7:52 am
by bepeg4d
Hi,
thanks for sharing screenshots and the scene, but .ocs format is not good, since it doesn't include geometry and textures used in the scene.

Please go to File/Save as package, then share the resulting .orbx scene, thanks.

Sorry, forgot to ask, which exact version of Standalone are you using?

ciao,
Beppe

Re: Layer reflections AOV

Posted: Wed Jan 15, 2025 4:29 pm
by noldo
bepeg4d wrote:Hi,
thanks for sharing screenshots and the scene, but .ocs format is not good, since it doesn't include geometry and textures used in the scene.

Please go to File/Save as package, then share the resulting .orbx scene, thanks.

Sorry, forgot to ask, which exact version of Standalone are you using?

ciao,
Beppe
Octane version 2024.1.2 (latest)
The .orbx file.
Layer reflection.orbx
(25.86 MiB) Downloaded 606 times
Thanks

Re: Layer reflections AOV

Posted: Thu Jan 16, 2025 9:38 am
by bepeg4d
Thanks for sharing the .orbx file.

Ok, it also considers the diffuse indirect contribution for compositing, so it must be judged in compositing.

If composed on Black background color, you can have back the original scene:
IMG_3926.jpeg
While here is on White or Red background:
IMG_3927.jpeg
IMG_3928.jpeg
Here is the scene:
Layer reflection_b.7z
(15.38 MiB) Downloaded 612 times
ciao,
Beppe