Hey Tweety!

If you re using a comp program (like nuke) make a delens on the picture you took,(using your camera's focal lenght). So your picture wont bend in perspective axis (if i am telling right)



This 2steps re really simple. Put your photo into an image plane on the Perspective view. Than start to move your camera still the grid fit you pictures ground/table/house whatever you see. than you have the right axis

The light stuff is a bit complicated. You should add ligths like they were outside the place. 1 directional light for the sun & some other lights. I took a picture from my desk & i used 1 direction for sunlight & an arealight as a monitor. If it does not match perfecty you can tuune them in compositing program.

It was a good free friday tutorial.... ..... .... found it finally

https://simplymaya.com/forum/showthre...ht=free+friday

It is just what you need