vray clipper not working as expected

[BVA]

I tried the vray clipper on the latest version and went back to the 17th November built. Both seems to work the same.

I am trying to clip through a wall looking at a mirror and see what is behind the camera. If I just use the clipper, all is as expected except the mirror reflects nothing. If I activate the "camera rays only" it looks right in rt but when I render the light passes are completely wrong.
I saved out the light cache and irradiance maps from the first render and loaded them for the final. I assume this is a bug.

[vladimir.nedev]

If I understand correctly, you saved an Irradiance map and Light cache with Camera Rays Only OFF, and then rendered the final image with the saved maps and Camera Rays Only On ?
I think it is expected that the lighting won't be correct in this case. It is as if you changed the geometry of the scene after saving an irradiance map, the lighting in the irradiance map is no longer correct after the geometry change, so you can't re-use it.
RT is unaffected since it doesn't use the pre-saved GI maps.

Greetings,
Vladimir Nedev

[BVA]

I know this is wrong, but my scene rendered completely wrong if i just let it do all the prepasses with camera rays on. The cheat looked better  I will send you the different renders, maybe i did something wrong, this is the first time I used clipper in modo.

I will mail you the different renders, the job is still confidential.

[vladimir.nedev]

I understand now. It does look like a bug. When you have Only Camera Rays ON , the camera rays fired during the Irradiance map pre-pass are not considered as camera rays by the V-Ray clipper, which seems wrong.
So no irradiance samples are computed inside the clipped geometry. This results in either incorrect final rendering, or slow final rendering if you have "Detail enhancement" ( I think in this case the irradiance map computes additional samples where it finds none).

Greetings,
Vladimir Nedev

[BVA]

yes, I could have explained myself better, sorry

[vladimir.nedev]

When you have Only Camera Rays ON , the camera rays fired during the Irradiance map pre-pass are not considered as camera rays by the V-Ray clipper, which seems wrong.

It seems the V-Ray for 3ds Max developers have fixed this issue for tomorrow's nightly build ( the one from 2015.11.26 ).
Give it a test if you can.

Greetings,
Vladimir Nedev

[BVA]

Give it a test if you can.

It work perfect, Thanks for fixing it so quick