Render help: VRay Sky turns all my rendes blue. Why?

[danieltaylor]

Hi,

 

I'm both new to this site and also to Vray. I've used the book 'Architectural Rendering with 3DS Max and V-Ray to give myself a bit of a crash course and it's proved very useful. However, when I come to finally render, the final result is always blue and black, there's nothing in the red or green channels. I now know through process of elimination that it's the VRay Sky that's doing this, as when I delete it goes away. But my main reason for producing these renders is to create shadow.

 

I'm a stressed architecture student with a couple of weeks to go until deadline. I'd really appreciate any help.

 

Many thanks,

 

Daniel

[salvador]

If you are using VRay physical camera, turn your white balance to neutral or daylight.

[Nic H]

put a yellowish material on your camera to neutralise the blue tinge

make sure its transperant as well so you can see thru it

 

or try putting the camera inside a sphere with the yellow material (make sure you have a low ior to reduce the distortion)

you may need to flip the normals

[Chris MacDonald]

Definitely adjust the white balance on the camera (set it to custom). The higher up you go (it's measured in kelvins), the more you will counter the blue tint. The lower you go, the more you will counter yellow/red tints (such as incandescent lights). Adjust in increments of +/-1000 kelvin until you get in the right area, then fine tune it with smaller increments.

 

Are you using a VRay Sun with your VRay Sky? If not, this could definitely have an impact on the colour tint as the yellow direct light of the sun will balance it out, usually. I almost certainly wouldn't put a sphere or anything in front of the camera to sort out this problem, as it's more likely to cause more problems for you than it solves.

[Corey Beaulieu]

I think much of the replies have good info, but if you posted an image, we could all likely tell you immediately and without the shadow of doubt, what is happening.