This is a scene that I have made in Blender:
The locations and angles of the lights and lamps are known to me [obviously]. I want to superimpose images on this rendered image through compositing such that i can add and adjust specular highlights and shadows respective to the lighting in the scene.
For example: When this image:
is composited on the above scene after removing it's white background, looks like this:
However without the appropriate specular highlights and shadows, it doesn't feel like a 100% integrated part of the scene.
I know this can be easily achieved in the Adobe software suite, but I'd rather play Russian Roulette alone.
In summation, how do I:
(1) Composite shadows and specular highlights on an image?
(2) How can i make it easily adjustable to any image of my choosing?