rt and bacground image

[roysgi]

when render with RT, the bacground image is almost black.
raising up the RGB LEVEL in the bitmap out parameter doesnt Influence.

The purpose is for camera match.
any idea?

Thanks.

Roy

[matanov]

What are your settings ?

1. Do you have exposure control ?
2. In Render Setup / V-Ray / Color mapping - is Affect background on or off ?

[roysgi]

Thanks for the reply

its happen just with gpu
1. no exposure control(in enviroment and effects dialog box)
2 it doesnt change nothing when affect bacground is on or off

max 2014,vray 3,titan

[matanov]

It will be best to send me a simplified version of your scene to look up where is the problem - peter.matanov@chaosgroup.com

[e3di]

I'd be interested to know what happened here as I am having the same problem. Thanks

[Svetlozar Draganov]

I'd be interested to know what happened here as I am having the same problem. Thanks

May you attach or send us a simplified version of your scene which still holds the issue for investigation?
Let us also know the exact versions/service packs of V-Ray/3D Platform/OS.

[matanov]

roysgi was trying to compensate the camera exposure by raising the RGB multiplier of the texture assigned to Background. RT GPU doesn't support "Output" settings yet, but I'm not sure if that is e3di's issue.

[e3di]

Hi, thanks for the replies. I was actually trying to as slizer said and up the RGB multiplier. Is there another of doing at the moment please?

[Svetlozar Draganov]

Use VrayHDRI texture with Overall/Render multiplier instead.

[e3di]

Ok, thanks a lot I will give it a try.

Much appreciated.