Got a black screen viewing the results on glviewer, everything seemed fine so I looked at the code and uncommenting out the line 455 on viewer.cpp:

view = glm::lookAt(glm::vec3(0,0,0), glm::vec3(0,0,-1), glm::vec3(0,1,0));

fixes it for me, in case anyone has the same problem.

Would be cool to have access to generating the synthetic data and training at some point, if you guys decide to release that.

Awesome work! Waiting for LLFFvid ;)