@Secrop: thanks, maybe I discovered america few centuries later, but when I searched how to place cg into photo enviro, there were only references to BI “Only Shadows” or complicated passes via Render Layers for Cycles, so I’m enjoying it very much in these days
@michalis: If you spoke about placing cg into image, like background plate, there I can’t see a problem with light either.
In this scene is used one sun lamp and plane sized just take shadows.
In this case are coordinates of course Window type for World and plane. And there I didn’t use any additional color corrections.
Just increase strength of the sun since plane disappear on World BG. Soft/Sharp shadows easily setup by size as usual.
Since it’s only single image there is nothing to reflect correctly, only ground part that is projected on the ground is reflected correctly in this case.
Also for this Window type texture coordinates (that is actually projection from view) it’s not a problem to reconstruct environment to let objects cast shadows on any surface in photograph.
But this example has nothing to do with ambitions to “realistically” light scene or merge cg into photograph.