> Thank you. My last question. Why when I use HDR my floor is gray? I use pigment
> color<1,1,1>  Even with emission 1.I like model I get, but I want white floor.
> Help me please.
>
>

If your floor is reflective, give it something white to reflect.

You can use reflection{... metallic}. This will tint the reflection in 
white.

You can give it a colour larger than 1, but it's not realistic and can 
introduce some other problems.

It's also possible to have a diffuse value larger that 1, but it can 
cause other problems.

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