weird scene behavior....

[Giovanni]

Hi all,
I post this here because most likely is not a v-ray "problem".

I have been working on an interior scene for awhile, then duplicated the file, and modified it slightly (option B).

Today I reopened the first file, and for some reason, all of a sudden, I could not get the scene to render properly. It was blown out (white with light).

First it would take 10 times the rendering time of the "twin" scene, when the only actual difference was the presence of 6 vray area lights in the original (slow) scene. Secondly, after a few minor tweaks, it would blow out in white (too mucg light).

After an afternoon debugging the scene, I discovered some object (very close to the area v-ray lights) had some sort of vertices lighting embedded in. In fact, hidden ALL light sources from the scene, these objects would still emitt light...

I got some results with the remove UVW/materials utility, the objects stopped emitting light.

Now, I understand there is no way to guess what happened with this posting, but my questions are:

1. Is it possible to bake luminance into objects, by mistake?

2. Does ever happend to any of you that a scene gets "corrupted" for reasons not immediately obvious (HD failure, coffee spilled on the mother board, and the such), and what rendered ok for days all of a sudden gets very slow to render and very light saturated?

Thank you

regards,

gio

[panthon]

This could happen opening the same scene in different computers. In our case, we noticed differences in all the values in which dots or commas were involved. If u have different computers with their regional settings set up differently, it could lead to strange effects on some objects, causing them to receive less gi, look brigther, darker, emit more gi, etc.

But in your situation i would say it´s related to corruption in your file. Strange things like that run far away from human comprehension

[Morbid Angel]

1 - no its not possible to bake luminance by mistake or accident, unless your working with baking intensivly and accidently have checked an option to render and replace shader with a baked map in self illumination slot.
Vertex lighting, although Im not familiar with is used in games. Could be some kind of option which vray has issues with.

2 - I had scenes go bad on me...Once I saved a scene and I saw its size was like 100 mb as opposed to 2 mb of its predecessors. After that I could never open it, said - system error and crap out.

[DaForce]

Yeah i had odd problems with a pflow scene, where it would render fine, except for a certain part of the particles and then crash max... open a previous version (of which there were no changes.. and it rendered fine.

I would suggest fix the problem however you can and not give it another thought, it doesnt happen very often but when max decides it wasnt to mess with a scene... anything is possible