On 9-8-2014 10:40, Stephen wrote:

> I would be tempted to use a fill light on the stairs just to bring out
> some detail. I would not know how to do that with radiosity. Would using
> a diffuse reflective object do it. The way that photographers would use
> a white sheet in RL?
>

During testing I have used a shadowless light over the stairs. I am 
thinking about a couple of things: a diffuse reflective screen is one 
but may be too 'diffuse' to be effective; a skylight high in the wall 
above the stairs is another. I am not too willing to use a direct light, 
even an area one, as that would be counter to the state of the building ;-)

Thomas

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