I've created a little overview how the Xploded floor is integrated into the video footage.
1. Tracking with SynthEyes. Here you have to find out for your specific video how to set custom trackers, coordinate system settings etc. The final result you export to a .LWS file.
2. Import to C4D. Load the .LWS and create a material with your video (map it onto the following objects with frontal mapping).
3. Create a background object and a few planes that they fit into the scene (they are for correct shadow receiving.
4. Add a compositing tag to those objects and check "Compositing Background". Now they are not longer affected by lights.
5. Add some lights to simulate (in my case very diffuse) light from the sky
6. Enjoy a cube floating over your scene :-)
Now the Xplode part:
7. Create a cube (with front mapped footage material) that fits into the ground and copy it into a new scene.
8. Scatter it with the Xplode plugin and take care that you set another material as "Inside Material" in the Xplode window. You can later change it to some underground texture/shader.
9. Copy the MoGraph Fracture Object back to your original scene and add a MoDyn tag and a Compositing tag (check Background Comp.).
10. Now you can use effectors to get the ground cracking (if you dont know how to do that, please have a look at my tutorial vimeo.com/9770431)
Thanks for watching!