First Color for the new Version

Today the scene gots a bit more colored.

Benchmarks so far:
1024x1024, 1024 rays : 40ms / 25 fps avg.
1024x768 , 1024 rays : 39ms / 25 fps avg.
1024x768 , 512 rays : 36ms / 27 fps avg.
1024x768 , 256 rays : 36ms / 27 fps avg.
512x512 , 512 rays : 21ms / 47 fps avg.
512x512 , 256 rays : 21ms / 47 fps avg.
512x512 , 128 rays : 21ms / 47 fps avg.

So far I couldnt figure out why less rays not increase the framerate significantly - the computation cost proportional to the number of rays.