Lightmap

a photon map

the lightmap

50000 photon was sent from the source light.
More info later

Here is a test scene which is lightmaped

Here is a test scene which demonstrate refraction The stain glassed texture are from Nytrik You can see that there are some artifact due to bilinear texturing This problem is in my todo list

Another test scene which demonstrate refraction through a sphere

Another test scene which demonstrate refraction through a plane This is the scene without any light

This is the scene with lightmap