Cinema 4d Compositing, going through some settings and options to get realistic renders.
The steps :
Compositing
-Open project file
-create new material add picture
-drop the picture in background
-Create a plane as a ground which will receive shadows and reflections
and add the picture in it with FRONTAL projection
-make the output render resolution same as the picture
for fast render porpuses lock rotion and lower it.
-drop a sky
-Clone the background material and replace it in luminance
-Position the model to the view
-drop a light and position it according to the light
(you can pick a color from the background)
in the back ground
-activate shadows
-COmpositing options :
Sky: disable seen by camera
plane/ground : enable compositing background
RENDER SETTINGS: -Activate ambiente auclusion if you would like to
-Activate globale illumination
RENDER