Final gathering implemented. Found some stray constants as well.Dont ask how long this render took.

Indirect only

Photon map for indirect and direct illumination.

Photon and caustics maps used for indirect. 1.5 radius, 500 max search photons. 1 million photons for each map. 8-64 samples at 0.01 error: 3min12sec.

Refactored photon power and rendered direct illumination. Looking much more correct.