Help with an unknow glow in the background of the render image

[thunguyen]

Hi everyone,

 

I'm rendering an exterior view and want to show a photo as the background image. I expected the background image to stay the same as it was, however it becomes quite dark and there's a glowing spot in the render image. Please see attached file.

 

 

Note that the sun in the scene is actually behind the house, to the left. So I don't know why in the render image, there's a glow in the right hand corner.

 

I'm using 3ds Max 2016 and Vray Adv 3.20.02. How to get rid of that glow?

 

Any advice is much appreciated.

 

[driedgrape]

Probably vignetting on your camera. Try unchecking that. For your BG i would suggest using a plane aligned with your camera, and a vray light material with your Image and 'Compensate for camera exposure' checked.

[thunguyen]

It works. Thank you so much, John. I have been struggling for so many days with this issue, trying to find where I went wrong.

 

As for the background image. I normally bump up the RGB level to match the camera exposure.