Object Not appearing in render

[stoimen]

Hi there,

I just got vray nightly built "vray_adv_70010_blender420_x64_224_install.zip " and did some test renders inside Blender.

I don't know if that's a bug or I've done something on my end, however I noticed after messing up with render settings (while using GPU, change mode from progressive to bucket and back, tweaking samples etc. standard things), some of the Objects in the scene won't show up in render unless I change an option in their "V-ray object properties".
(check photo 1)
So I just ticked their "Matte Surface" and they appeared normally in render not being matted.
(check photo 2)
Then I unticked the option and did a new render and they were rendering as expected.
(check photo 3)
It works like a refresh.

No Idea why this affected only the sphere and the cube, Suzzane was just fine in there

You can find the file here:
https://www.dropbox.com/scl/fi/fcnxn...zhaw5ziyf&dl=1

Attached is also the log from that time.

Hope this helps,
Stoimen

[daniel.kapsazov]

Hello stoimen, Thank you for the report and the provided scene. Unfortunately, I was unable to reproduce the behavior on my end, but I will keep an eye on the V-Ray Object Properties in case I encounter this issue in the future.

On another note, I noticed that you are using V-Ray GPU. If you intend to use Matte Surface with GPU, you’ll need to set the Alpha Contribution to -1 and ensure that Affect Alpha and Shadows are enabled.