try to render this simple interior sample scene please!

[GoncaloP]

You can even have very nice detailed image with only photon map, with extremly high subdivisions but is slow to trace so many photons and its very difficult to cover all the image thats why the irradiance map is always need.

Here is a image with only photon mapping

Tooks 1 hour and 15 m to only trace photons



And after that changing to irradiance map with "convert to irradiance map" option applied

Some color correction was used




Gonçalo