vRay bugs out on huge sized scenes

[Kion3D]

Hi, never wrote here, thought this could be a first.

I've notived that there is a certain task in which vRay struggles, which is hugely sized scenes. I'm working on an entire railroad which spans on an area as big as 240,3 km2. There are several different scenes and I need to render lots of replicators while mantaining the initial coordinates (this is a 10 year old project that will last another 20 or so, we need to be sure to keep the CAD coordinates to make sure changes are correct over time).

When rendering replicators far away from the center though vRay goes a little crazy and cause this:




While the MODO internal render engine can easily render it out like this:




As you can see there are plenty artifacts, and the same is happening, for example, with MOPs. Actually, I've also tried freezing the replicators and MOPs and the problem persist so it could actually be a problem of rendering stuff far away from the center, here the curve on which I replicated those items was 40km away from the center.

Hope this can be somehow changed or fixed, working with the internal render engine of MODO is a real pain

[vladimir.nedev]

I can't see any images attached.

Greetings,
Vladimir Nedev

[vladimir.nedev]

Oh, I saw your scene and images in the Skype chat.

Yes, rendering small objects far away from the center of the world leads to precision issues.

We actually have special handling for this, but it is disabled in RT, because it would require a scene rebuild when the camera moves.
Maybe it's fixable, but I am not sure how difficult it will be.

If you render your scene in Production it should render fine. At least it did on my test, without moving or centering anything.

Greetings,
Vladimir Nedev