How to put CG Lightreflections into footage


Hello folks,

I have tracked a little scene and put a computer in it. Someone is pushing switches and a light is switching on.
Is there a possibillity to show the light bounces and reflections of the CG light in the footage?
Maybe someone knows a solution.


Model a rough dummy of the object you want the light to hit. Render a lighting pass and a reflection pass. Should give you a black image with just the lighting or reflections colored. Composite them in your AE or Nuke comp over the footage. Screen mode or add mode, probably.


Woa, I had the hope to avoid this because it is really much work. Keeps me pretty busy the next days.
But thank you Jessifer.